U.S. patent application number 12/094545 was filed with the patent office on 2009-12-24 for gait trainer providing exercise prescription.
This patent application is currently assigned to Seung-Hun Park. Invention is credited to Gon Khang, Seung-Hun Park.
Application Number | 20090318267 12/094545 |
Document ID | / |
Family ID | 38048859 |
Filed Date | 2009-12-24 |
United States Patent
Application |
20090318267 |
Kind Code |
A1 |
Park; Seung-Hun ; et
al. |
December 24, 2009 |
GAIT TRAINER PROVIDING EXERCISE PRESCRIPTION
Abstract
Provided are a gait trainer which provides exercise prescription
and an exercise prescription system using the gait trainer. The
gait trainer comprises a display, pedals on which user's feet are
placed, a control unit which receives physical information about
the physical condition of the user while the pedals are moving,
defines an optimal exercise prescription based on the physical
information, and provides the defined exercise prescription to the
display. The control unit accesses a server belonging to a
health-related organization through a predetermined network, and
defines the exercise prescription with the aid of the health
expertise received from the server. Since the exercise prescription
suitable for the user is provided, exercise efficiency is maximized
and possible dangerous health situations can be prevented.
Inventors: |
Park; Seung-Hun;
(Kyungki-do, KR) ; Khang; Gon; (Seoul,
KR) |
Correspondence
Address: |
Perman & Green, LLP
99 Hawley Lane
Stratford
CT
06614
US
|
Assignee: |
Park; Seung-Hun
Kyungki-do
KR
KLMED CO., LTD.
Gangwon-do
KR
INDUSTRY ACADEMIC COOPERATION FOUNDATION KYUNGHEE
Gyeonngi-Do
KR
|
Family ID: |
38048859 |
Appl. No.: |
12/094545 |
Filed: |
November 21, 2006 |
PCT Filed: |
November 21, 2006 |
PCT NO: |
PCT/KR2006/004894 |
371 Date: |
November 13, 2008 |
Current U.S.
Class: |
482/8 ;
482/52 |
Current CPC
Class: |
A63B 22/0664 20130101;
A63B 2230/50 20130101; A63B 69/0064 20130101; A63B 2230/70
20130101; A61H 2201/1215 20130101; A61H 3/008 20130101; A61H 3/00
20130101; A63B 24/0075 20130101; A61H 2230/805 20130101; A63B
2230/08 20130101; A61H 1/0266 20130101; A61H 2201/5071 20130101;
A61H 2201/5043 20130101; A63B 2230/04 20130101; G16H 20/30
20180101; A61H 1/0262 20130101; A63B 2230/06 20130101; A61H
2201/1621 20130101; A63B 2022/0676 20130101; A61H 2201/1635
20130101; A63B 2230/202 20130101; A61H 2201/1418 20130101; A63B
2225/20 20130101; A63B 2230/30 20130101; A61H 2230/06 20130101;
A61H 2201/1616 20130101; A61H 2201/5007 20130101; A61H 2230/10
20130101; A63B 2230/01 20130101; A61H 2230/30 20130101; A61H
2201/164 20130101 |
Class at
Publication: |
482/8 ;
482/52 |
International
Class: |
A63B 71/00 20060101
A63B071/00; A63B 22/04 20060101 A63B022/04 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 21, 2005 |
KR |
10-2005-0111414 |
Claims
1. A gait trainer providing an exercise prescription, the gait
trainer comprising: a display; pedals on which user's feet are
placed; a control unit which receives physical information about a
physical condition of the user while the pedals are moving, defines
optimal exercise prescription based on the information about the
user's physical condition, and provides the exercise prescription
to the display.
2. The gait trainer of claim 1, wherein the control unit accesses a
server belonging to a health-related organization through a
predetermined network, and defines the exercise prescription by
also using health expertise received from the server.
3. The gait trainer of one of claims 1 and 2, further comprising: a
pedal operating portion which drives the pedals, wherein the
control unit controls at least one of driving speed and load of the
pedal operating portion.
4. The gait trainer of claim 3, wherein the pedal operating portion
includes pressure measuring sensors to measure pressures applied to
both feet, and the control unit provides the exercise prescription
by also using the pressure measurements received from the pressure
measuring sensors.
5. The gait trainer of one of claims 1 and 2, further comprising: a
storage unit which stores information about an exercise history of
the user, wherein the control unit provides the exercise
prescription by also using the information received from the
storage unit.
6. The gait trainer of one of claims 1 and 2, further comprising: a
weight-supporting portion which allows the pressures applied to
both feet of the user to be reduced and includes a holder which is
put on certain parts of the user's body and a holder driving unit
which lifts or lowers the holder.
7. The gait trainer of claim 6, wherein the holder driving unit
lifts or lowers at least two portions of the holder
differently.
8. The gait trainer of one of claims 1 and 2, further comprising: a
wheelchair docking portion for fixing a wheelchair securely.
9. The gait trainer of one of claims 1 and 2, further comprising: a
speaker to play music which helps the user's exercise.
10. The gait trainer of one of claims 1 and 2, further comprising:
a ventilator through which aroma is provided to the user to help
the user's exercise.
Description
TECHNICAL FIELD
[0001] The present invention relates to a gait trainer for
improving a user's health, and more particularly, to a gait trainer
providing an exercise prescription based on information about the
physical condition of a user and an exercise prescription system
including the gait trainer.
BACKGROUND ART
[0002] Modern people living a busy life may not get enough
exercise. Particularly, as computer technology is developing,
people spend much more time using computers, and thus they do not
exercise, except simple repeated movements such as moving a mouse
or typing a keyboard. Moreover, as the Internet is rapidly
popularized, modern people spend much more time using computers.
Therefore, various adult diseases owing to the lack of exercise
threaten the health of people, and awareness of lack of exercise is
getting higher.
[0003] In particular, as the quality of life has increased, people
not only satisfy their necessities of life, but are concerned about
and much more interested in a higher quality of life by keeping
their bodies in good health. A recent `well-being` fad is a good
example of modern people's interest in health.
DISCLOSURE OF INVENTION
Technical Problem
[0004] However, it is reported that exercises are not always good
for people and that exercises can affect people differently. For
example, it is well known that a muscular exercise which is good
for healthy males in their 20's is fatal for menopausal women who
have symptoms of osteoporosis. Thus, different exercise methods are
provided based on the physical condition of a person who desires to
exercise, and the person should recognize his physical condition
and then exercise. Excessively exercising without considering
personal physical condition may cause serious damage to the body
such as pulling muscles or breaking bones.
[0005] Such damage can be more serious when a person who desires to
exercise is disabled and is not able to move his body freely. For
example, people who have damaged spines or weak joints have many
exercise limitations. Specifically, since severe pains occur in
their spines or joints whenever they move their body, it is hard
for them to keep exercising for a long time. However, doctors
strongly advise these people to reduce their weight by exercising
constantly in order to prevent the symptoms from worsening.
Specifically, if arthritic patients do not exercise, they gain
weight, but since their joints are too damaged, they are not able
to exercise.
Technical Solution
[0006] It is recommended to walk in the water to exercise muscles
and consume calories without strain to joints. When a person moves
his body in the water, he can exercise the muscles and reduce the
weight due to the water resistance, and thus, this is the best
method to achieve exercise effect without straining the joints.
However, to this end, it is required to go to a specific place such
as swimming pool regularly, and this could be inconvenient,
especially, for people with a busy lifestyle.
[0007] Therefore, an exercise prescription device, which provides a
user with an optimal exercise prescription which does not strain
joints, based on information about the physical condition of the
user and monitors the user's exercises continuously to efficiently
manage possible dangerous circumstances, is required.
ADVANTAGEOUS EFFECTS
[0008] According to the present invention, a gait trainer helps the
user to exercise without excessive strain to the user's joints and
provides an exercise prescription suitable for the user.
[0009] Moreover, according to the present invention, the gait
trainer supports the user's weight, and thus the load applied to
the user's body can be eased as if the user is exercising in
water.
[0010] In addition, according to the present invention, an exercise
prescription system provides an optimal exercise prescription to
the user based on physical information about the physical condition
of the user, and monitors a user's exercising constantly to
efficiently manage possible dangerous circumstances.
DESCRIPTION OF DRAWINGS
[0011] The present invention will become more apparent by
describing in detail exemplary embodiments thereof with reference
to the attached drawings in which:
[0012] FIG. 1 is a perspective view of a gait trainer with exercise
prescription capability according to an embodiment of the present
invention;
[0013] FIG. 2 is a lateral view of the gait trainer with exercise
prescription capability of FIG. 1;
[0014] FIG. 3 is a block diagram of a control unit included in a
gait trainer with exercise prescription capability according to an
embodiment of the present invention;
[0015] FIGS. 4A-4E are views of data shown in a display of a gait
trainer with exercise prescription capability according to an
embodiment of the present invention; and
[0016] FIG. 5 is a view illustrating a gait trainer with exercise
prescription capability according to an embodiment of the present
invention.
BEST MODE
[0017] The present invention provides a gait trainer which helps a
user to walk without straining joints and provides an optimal
exercise prescription based on information about the physical
condition of the user, and an exercise prescription system which
monitors the user's exercises constantly to efficiently manage
possible dangerous circumstances.
[0018] The present invention also provides a gait trainer which
includes a weight-supporting portion to ease the effect of the
user's weight so that the user can obtain the same effects as if he
exercised in the water.
[0019] According to an aspect of the present invention, there is
provided a gait trainer providing an exercise prescription, the
gait trainer comprising: a display; pedals on which user's feet are
placed; a control unit which receives physical information about a
physical condition of the user while the pedals are moving, defines
optimal exercise prescription based on the information about the
user's physical condition, and provides the exercise prescription
to the display.
[0020] The control unit may access a server belonging to a
health-related organization through a predetermined network, and
defines the exercise prescription by also using health expertise
received from the server.
[0021] The gait trainer may further comprise: a pedal operating
portion which drives the pedals, wherein the control unit controls
at least one of driving speed and load of the pedal operating
portion.
[0022] The pedal operating portion may include pressure measuring
sensors to measure pressures applied to both feet, and the control
unit provides the exercise prescription by also using the pressure
measurements received from the pressure measuring sensors.
[0023] The gait trainer may further comprise: a storage unit which
stores information about an exercise history of the user, wherein
the control unit provides the exercise prescription by also using
the information received from the storage unit.
[0024] The gait trainer may further comprise: a weight-supporting
portion which allows the pressures applied to both feet of the user
to be reduced and includes a holder which is put on certain parts
of the user's body and a holder driving unit which lifts or lowers
the holder.
[0025] The holder driving unit may lift or lower at least two
portions of the holder differently.
[0026] According to the present invention, a gait trainer allows
the user to exercise without excessive strain to his joints. The
weight-supporting portion produces the same effects as if the user
exercised in the water. Moreover, the user can be provided with an
optimal exercise prescription, and prevent unexpected situations
due to excessive exercise.
MODE FOR INVENTION
[0027] The present invention will now be described more fully with
reference to the accompanying drawings, in which an embodiment of
the invention is shown. Throughout the drawings, like reference
numerals are used to refer to like elements.
[0028] FIG. 1 is a perspective view of a gait trainer 100 with
exercise prescription capability according to an embodiment of the
present invention, and FIG. 2 is a lateral view of the gait trainer
100 of FIG. 1.
[0029] The gait trainer 100 includes lower frames 105, supporting
frames 110, load supporting poles 115, and handles 120. Moreover,
the gait trainer 100 also includes pedals 140 on which user's feet
are placed, a pedal operating portion 130 that drives the pedals
140, a display 190, and a control unit 150. The gait trainer 100
may include a weight-supporting portion 180 that eases the effect
of a user's weight, and a holder 170 that encloses a user's
body.
[0030] The lower frames 105, the supporting frames 110, and the
load supporting poles 115 are made of a rigid material such as
metal. The pedal operating portion 130 is attached to the lower
frames 105. The operation of the pedal operating portion 130 will
be described in detail below.
[0031] When a user puts his/her feet on the pedals 140, the pedal
operating portion 130 drives the pedals 140, allowing the user's
feet to move in a similar way to walking. Since the pedal operating
portion 130 directly operates the pedals 140, a user who cannot
move his feet on his own can obtain the effect similar to a walking
exercise. In this case, even when the user does not pedal directly,
his feet are moved according to the movement of the pedal operating
portion 130. Then, the user's center of gravity alternately shifts
between right and left according to the movement of the pedals 140
driven by the pedal operating portion 130, and so the user's body
is moved in directions opposite to the movement of the center of
gravity in order to keep the user balanced. The movements of the
user's body will be described in detail below.
[0032] According to the movement of the pedals 140, the user's body
reacts in two ways. First, because the movement of the pedals 140
disturbs the balance of the user's body, repeated contraction and
relaxation of muscles instinctively occur as reflex movements to
keep his body balanced. These cooperative movements of the muscles
produce effects of muscle strengthening which are similar to
benefits that can be obtained from active exercises, and also
strengthen the cooperativeness between various muscles used for
walking. The intensity of the exercise can be controlled by
increasing and reducing the weight applied to each foot caused by
the user's body weight. Second, the user's body passively repeats
actions required for walking. Through the passively repeated
actions, the user can learn what actions are needed for walking. In
particular, this learning is useful for users whose body balance
maintenance function is lost or deteriorated by a disorder of the
brain or nerves. In the case of users with deteriorated body
balance maintenance function, functions of the brain or nerves in
charge of maintaining the body balance can be reproduced by
repeatedly learning the walking movements.
[0033] In brief, the movements of the pedals 140 function as
stimulation to disturb the balance of the body, and the body reacts
to the stimulation. Therefore, the repeated reflex movements
strengthen the necessary muscles and cooperative capability between
the muscles used for walking, and the brain tissues or nervous
tissues in charge of walking function can be reproduced or
redefined.
[0034] The pedals 140 are not necessarily operated by the pedal
operating portion 130, and may be driven by the user who directly
pedals. Thus, the pedal operating portion 130 can be optimally
operated by the user.
[0035] The pedal operating portion 130 may include a motor to drive
the pedals 140, and the driving speed of the pedals 130 or the
weight applied to the pedals 130 can be controlled by the control
unit 150. Since it becomes harder for the user to maintain his body
position and balance as the pedal operating portion 130 drives the
pedals 140 at a high speed, the user can obtain more beneficial
exercise in this condition. Moreover, in this case the user may
repeatedly control the walking movements so that the repeated
learning effects can increase.
[0036] The pedal operating portion 130 may include a cam (not
shown) which makes the movements of the pedals 140 similar to the
walking human walking movements. In this case, the power used by
the user to drive the pedals 140 can be controlled by controlling
the weight applied to the cam or changing friction applied to the
cam. It is certain that as the weight applied to the pedals 140
increases, the user can obtain more beneficial exercise even when
the user does the same exercise.
[0037] As described above, when the pedal operating portion 130
drives the pedals 140, the user can exercise passively. Since an
active exercise mode can be provided, the user can directly drive
the pedals 140. In the active exercise mode, the pedal operating
portion 130 does not drive the pedals 140 directly. However, in
this mode the pedal operating portion 130 may control the exercise
strength using a driving portion (not shown). Therefore, according
to the user's ability to move his body, the user may achieve more
beneficial exercise by driving the pedals 140.
[0038] During exercise, the user can keep his body balanced by
grabbing handles 120. In the case of a user having sufficient power
in his torso, when the user raises his torso to a certain height
from the handles 120, the user may attain effects of reduction in
weight applied to the lower part of his body as well as train the
torso muscles. When the weight applied to the lower part of the
body is reduced, damage to weak leg joints such as knees can be
prevented.
[0039] The control unit 150 collects information related to the
physical condition of the user who is exercising, and provides an
individual exercise prescription based on the information.
[0040] The exercise prescription provides the user with optimum
exercise details, such as exercise type, exercise strength, and how
often and how long to exercise, which are determined after
analyzing the physical information such as a user's physical
condition and strength. In addition, by using the exercise
prescription, the strength and amount of exercise can be properly
controlled according to how the exercise is proceeding. Thus, the
exercise prescription is a scientific and systematic health
improvement service. The exercise prescription is systematically
performed based on exercise science along with medical
expertise.
[0041] The information about the physical condition of the user
includes basic information such as the user's pulse, weight, body
fat, body mass index (BMI), blood pressure, blood sugar level, body
temperature, heart rate, and bioelectrical impedance, and exercise
information such as the user's pulse, electrocardiography (ECG),
and blood pressure during exercise. The basic information and
exercise information about the physical condition of the user are
examples of information, and are not necessarily distinguished and
may be interconnected to each other. BMI is an important standard
to determine whether people are underweight, of normal weight,
overweight, or obese. BMI is obtained by using a formula, weight
(Kg)/height (m), and is used to determine obesity index of the
user.
[0042] The operation of providing an exercise prescription from the
control unit 150 of the gait trainer 100 will be described in
detail below.
[0043] The basic information about the physical condition of the
user who desires to exercise is collected. The information may be
input manually by the user using buttons 155 or the user may input
his basic information using a display with a touch screen instead
of the buttons 155. Alternatively, the information may be read from
a storage unit (not shown) which includes information about the
user's physical condition and the user's exercise history.
Specifically, when the user inputs his ID or name using the buttons
155, the user's basic information can be read.
[0044] Moreover, the information about the user's physical
condition may be collected directly by various measurement sensors
(not shown) included in the gait trainer 100. For example, weight
sensors are attached to the pedals 140 so that they can measure the
weight of the user at the moment when the user puts his feet on the
pedals 140, and the measured weight may be sent to the control unit
150. Additionally, pulsimeters and sphygmomanometers may be placed
on predetermined portions of the handles 120 where the user can
grab. When the user only grabs the handles 120, the user's pulse
and blood pressure are measured and are then transmitted to the
control unit 150. Furthermore, graduations may be marked on the
weight supporting poles 115 or the supporting frames 110 so that
the user can measure his height personally. A height measuring
device (not shown) which can go up and down along the weight
supporting poles 115 or the supporting frames 110 may be further
included so that the user's height can be automatically measured
and input to the control unit 150 instead of measuring and
inputting the height manually using the buttons 155.
[0045] Alternatively, the information about the user's physical
condition may be collected using sensors formed on a chest belt
which is put on the user's chest or a hat put on the user's head.
In this case, the physical information measured by the sensors may
be transmitted to the control unit 150 by wireless communication so
that the user can exercise more conveniently.
[0046] When the basic information about the user's physical
condition is collected, the control unit 150 provides the user with
the optimal exercise prescription based on the information. For
example, when it is determined that the user is obese based on the
user's BMI, the control unit 150 provides an exercise prescription
that includes a long duration of walking with low intensity. In
comparison, when it is determined that the user is underweight, the
control unit 150 provides a highly intensive exercise to the user.
The control unit 150 may provide the user with exercises of a
various intensities and optimal patterns based on fatigue levels of
user's muscles and recovery speed during exercise. For instance,
the control unit 150 may provide an exercise prescription that
suitably combines low intensity exercise and high intensity
exercise based on the user's physical information.
[0047] For example, it is assumed that the user's exercise
intensity is ranked from 0 to 10. The user's exercise intensity may
indicate the power necessary to move the pedals 140 or a
combination of the pedal speed and applied weight. It is assumed
that when the analysis result of the user's basic physical
information indicates that the user is underweight, the user needs
to reinforce the muscular strength. In this case, the control unit
150 may provide an exercise prescription that informs the user to
skip exercises of intensity ranked from 0 to 4 and only perform
exercises of intensity ranked from 5 to 9 for five minutes each
with one minute break between exercises. The exercise prescription,
then, informs the user to perform an exercise of intensity 9 for
three minutes and directly, without break, shift to an exercise of
the maximum intensity (intensity 10) using all the user's strength
for two minutes. The user exercises according to the exercise
prescription provided by the control unit 150 and then rests for
three minutes so that the user's muscles can sufficiently relax.
After exercising, if necessary, the user can repeat cycles of
exercises which have been performed before. By such an exercise
prescription, the user can reinforce his muscular strength.
[0048] Alternatively, it is assumed that the analysis result of the
user's basic information indicates that the user is obese so that
the user's basic strength is low. In this case, unlike as mentioned
above, the control unit 150 may provide an exercise prescription
that informs the user to perform exercises of intensity ranked from
0 to 4 for two minutes each and then rest for five minutes. By
using this exercise prescription, the user can consume lots of
calories without serious strain to the user's bones.
[0049] While the user is exercising, exercise information is
collected and transmitted to the control unit 150. The exercise
information includes pulse, electrocardiograms and blood pressure
during exercising. When the user has heart disease, information
about the electrocardiograms and heart rate is especially
important. Therefore, the control unit 150 may provide an exercise
prescription that does not allow the user's heart rate to rise
above a certain limit. The exercise information is shown on the
display 190 so that the user can check his physical condition
personally. The physical information shown on the display 190 will
be described in detail later with reference to FIGS. 4A-4E.
[0050] The control unit 150 analyses the user's exercise
information and alerts the user when the analysis result indicates
that the blood pressure or pulse of the user rises above a certain
danger level. Therefore the user can exercise safely using the gait
trainer 100.
[0051] Furthermore, the control unit 150 measures the agility,
power, muscular endurance and VO.sub.2 of the user, as described
below.
[0052] 1) Agility: it is measured using a time taken for the user
to press the buttons 155 in response to commands shown on the
display 190.
[0053] 2) Power: it is measured by measuring how fast the user can
pedal at a predetermined speed.
[0054] 3) Muscular endurance: the control unit 150 controls the
pedal operating portion 130 to apply the maximum load to the pedals
140. Then, the muscular endurance is measured by measuring how long
the user can pedal while bearing the applied load. The load for
measuring the muscular endurance may be different from a load for
measuring the power. This is because the power is focused on how
fast the user can perform a short distance exercise but the
muscular endurance is focused on determining whether the user can
perform a relatively long distance exercise without muscular
fatigue. The muscular endurance may be measured in unit time.
[0055] 4) Maximum oxygen consumption (VO.sub.2): The gait trainer
100 may include a module (for example, a mouthpiece, not shown) to
measure the VO.sub.2 of the user. Thus, the VO.sub.2 may be
measured using the module that the user is holding in his mouth
while exercising. Alternatively, the heart rate may be extracted by
processing the electrocardiograms and blood oxygen saturation
(SPO.sub.2) signals, and VO.sub.2,max can be estimated using the
extracted heart rate.
[0056] The information about a user's physical condition is
measured in different ways according to the active or passive
exercise mode. For example, in the passive exercise mode where the
pedal operating portion 130 drives the pedals 140, it may be
difficult to measure the power or the muscular endurance. However,
even in this case, relative changes of the information which is
changed every time it is measured can be detected, and the control
unit 150 can define an appropriate exercise prescription using the
relative changes.
[0057] When the information about the user's physical condition is
measured, the control unit 150 generates information about the
user's health by measuring changes in the user's heart rate and
blood pressure according to exercise intensity and how much
exercise is being done and changes in heart rate when a specific
load is applied. Algorithms for generating the health information
may vary, and are not included in the technical scope of the
present invention, and any algorithm which can generate the health
information based on the user's health can be used. The control
unit 150 defines a more specific exercise prescription based on the
information about a user's physical condition. The exercise
prescription may be categorized into a sport exercise prescription
and a stepwise exercise prescription. The sport exercise
prescription provides the user with different types of exercises to
make difference in the amount of exercise to vary the exercise
regime. For example, the user can expend more energy when he
mountain bikes than when he road bikes. The stepwise exercise
prescription controls the exercise stress of the same type of
exercise.
[0058] The gait trainer 100 may measure other information about a
user's physical condition besides the information mentioned
above.
[0059] The weight-supporting portion 180 will be described in
detail below.
[0060] The holder 170 is stably attached to a predetermined part of
the user's body. Then, lines 175 connected to the holder 170 are
linked to the weight-supporting portion 180. The weight-supporting
portion 180 includes a motor (not shown) that allows the holder 170
to go up and down by winding or unwinding the lines 175.
[0061] The user operates the buttons 155 after he puts on the
holder 170. Then the control unit 150 controls the
weight-supporting portion 180 to lift the holder 170 in response to
the user's input. As the holder 170 is lifted, the user's weight
applied to the pedals 170 is reduced. Thus, the user can exercise
without any strain to his bones.
[0062] There may be users whose left and right parts of the body
have been developed differently. Moreover, there may be users with
damage to a part of their brain, who are not able to control a half
of their bodies. In this case, the weight applied to the right and
left feet is not evenly distributed. The pedals 140 include
pressure sensors to measure the applied pressure. The pressure
sensors may be force sensing resistors (FSRs). Therefore, the
weight-supporting portion 180 may be controlled differently based
on the applied weight. For example, if the pressure applied to the
left foot is greater than the pressure applied to the right foot,
the pressure applied to the user's right foot should be released.
Thus, the control unit 150 controls the weight-supporting portion
180 to lift the right portion of the holder 170 higher than the
left portion. When the right portion of the holder 170 is lifted
higher than the left portion, the excess pressure applied to the
right part of the body can be reduced so that the user can maintain
his body balance.
[0063] Furthermore, the holder 170 may include a heart rate monitor
to measure the user's heart rate. When the heart rate monitor is
directly attached to the holder 170, the changes in heart rate of
the user during exercise can be easily detected. As described
above, information measured by the sensors like the heart rate
monitor may be transmitted to the control unit over a wired
connection or by wireless communication.
[0064] The gait trainer 100 may include a camera (not shown) to
take pictures of users exercising. The taken picture information is
transmitted to the control unit 150, and the control unit 150
processes the picture information and shows it on the display 190.
Then, the user can exercise while watching himself at the same
time, and therefore, biofeedback is possible, which allows the user
to maintain a desirable exercising position.
[0065] The control unit 150 provides the exercise prescription
based on the user's current physical information and also stores
the history about how the exercising is proceeding. Therefore, the
control unit 150 can provide a more systematic exercise
prescription. Moreover, the control unit 150 displays the exercise
result as simple scores and then encourages the user concerning his
achievement.
[0066] Wheelchair docking portions (not shown) for fixing a
wheelchair may be formed on the bottom ends of the lower frames 105
where the user is positioned. The wheelchair docking portions
enable the user to fix his wheelchair easily. Thus, the user using
the wheelchair can approach the gait trainer 100 and place his
wheelchair simply on the wheelchair docking portions. Then, the
user can lift his body using the handles 120. As described above,
in this case the weight-supporting portion 180 can be used to
reduce the user's weight based on the information about his
physical condition.
[0067] Furthermore, the gait trainer 100 may include speakers (not
shown). By using the speakers, the user may be informed about his
physical condition while exercising, or a variety of additional
information may be provided to the user. For instance, the user can
relieve the tedium of exercise by listening to radio or music.
Additionally, predetermined music that makes the user relax may be
provided through the speakers, and thus music therapy can be
implemented. The music may be Korean traditional music or classical
music, and may be played by a turntable to avoid digital fatigue.
Alternatively, digital music sampled with a high bit rate may be
provided.
[0068] In addition, the gait trainer 100 may further include an
aroma generator (not shown) or a ventilator (not shown). The scent
from the aroma generator may stimulate the olfactory senses of the
user and relax the users excessive tension. The aroma generator may
be formed using a device similar to an ink cartridge so that
various kinds of scent can be changed easily.
[0069] The user can check information about his physical condition
shown in the display 190 and exercise efficiently according to the
suitable exercise prescription using the gait trainer 100
illustrated in FIGS. 1 and 2.
[0070] FIG. 3 is a block diagram of the control unit 150 included
in the gait trainer 100 with exercise prescription capability.
[0071] The control unit 150 includes a physical information
receiving portion 310, a user operating portion 320, a central
control portion 350, a gait trainer control portion 370, a storage
portion 380, and a display control portion 390.
[0072] The physical information receiving portion 310 receives
information about a user's physical condition. As described above,
the physical information receiving portion 310 may receive the
information from the sensors attached to the gait trainer 100 by
wired or wireless communication. Alternatively, the sensors may be
directly attached to parts of the user's body.
[0073] The user inputs a user command using the user operating
portion 320. Through the user operating portion 320, the user can
input his basic information directly and select a suitable exercise
prescription. When the user command is input, the central control
portion 350 controls the gait trainer control portion 370 and the
display control portion 390 in response to the user command.
[0074] For example, when the user wants to check his exercise
history, the central control portion 350 receives the exercise
history corresponding to the user which is stored in the storage
portion 380. Moreover, the central control portion 350 processes
the history to be suitably shown and provides it to the display
control portion 390. Then, the display control portion 390 controls
the display 190 formed in the gait trainer 100 to show the exercise
history.
[0075] In addition, the central control portion 350 creates the
exercise prescription appropriate to the user based on the
information about his physical condition. The created exercise
prescription is transmitted to the display control portion 390 and
then shown in the display 190 (referring to FIG. 1). The user
controls the gait trainer control portion 370 according to the
exercise prescription. The gait trainer control portion 370
controls the pedal operating portion 130 (referring to FIG. 1) to
correspond to the exercise prescription so that the exercise speed
and the exercise intensity can be changed.
[0076] The central control portion 350 may further include an
output portion (not shown) that prints a variety of information
such as the information about a user's physical condition, the
exercise prescription and exercise history of the user on paper and
provides it to the user, as well as providing the information to
the display control portion 390. When the exercise history is
output, the user can manage his exercising more actively.
[0077] FIGS. 4A-4E are exemplary views of data shown in the display
190 (referring to FIG. 1) of the gait trainer with exercise
prescription capability.
[0078] FIG. 4A illustrates an example of the exercise prescription
provided to the user. The exercise prescription includes target
heart rate, duration of exercise, expected calorie consumption,
exercise intensity, warming-up exercise, and precautions. In FIG.
4A, the target heart rate is between 128 and 157. If the user has
heart disease, the gait trainer 100 advises the user to exercise
less when the user's heart rate rises above the target heart rate,
as described above. The gait trainer 100 provides the user with the
warming-up exercise and precautions, and thus dangerous situations
which can occur when the user starts to exercise can be
prevented.
[0079] FIGS. 4B and 4C illustrate displays showing weight and body
fat and percentage of body fat, respectively.
[0080] The user can monitor his physical information whenever he
wants by operating the buttons 155 illustrated in FIG. 1. In
particular, the weight, the body fat, and the body fat rate are
important factors to define how obese the user is and his physical
condition, and the control unit 150 (referring to FIG. 1) provides
the exercise prescription suitable for the user using this
information.
[0081] FIG. 4D illustrates an example of the exercise information
shown in the display 190 while the user is exercising. In FIG. 4D,
the display 190 shows heart rate, blood pressure, and duration of
exercise, and includes a pressure displaying portion 410 to show
the pressure applied to each foot.
[0082] The user can monitor heart rate and blood pressure from the
display 190 while he is exercising. In particular, hypotensive or
hypertensive users can maintain appropriate blood pressure. The
control unit 150 (referring to FIG. 1) may manage to monitor health
information such as the heart rate and blood pressure of the user.
Thus, the control unit 150 allows the user to exercise safely based
on the user's physical condition and the provided exercise
prescription.
[0083] According to the pressure displaying portion 410 illustrated
in FIG. 4D, the left foot of the user applies pressure of 75 kg and
the right foot applies pressure of 80 kg. Thus, it is required to
slightly move the center of gravity to the left side since the
right foot of the user is applying more pressure. The control unit
150 controls the weight-supporting portion 180 (referring to FIG.
1) to lift the right part of the user's body higher than the left
part based on the information. Alternatively, the user can control
the weight applied to the feet personally, and thus can actively
and more efficiently exercise.
[0084] FIG. 4E illustrates an example of the provided exercise
prescription and current exercising condition.
[0085] In FIG. 4E, the user is provided the exercise prescription
that informs the user to exercise stepwise at increasing intensity
for five minutes each step and exercise at the initial intensity
after 15 minutes. The exercising condition of the user is displayed
on the lower graph corresponding to the exercise prescription.
[0086] As illustrated in FIG. 4E, the user exercised for ten
minutes according to the exercise prescription, but after that, the
user is not able to raise the intensity and is exercising at the
same intensity. Accordingly, the user can easily determine he needs
to raise the exercise intensity.
[0087] The data illustrated in FIGS. 4A to 4E are only examples of
a variety of information shown in the display, and the present
invention is not limited thereto.
[0088] FIG. 5 is a view illustrating a gait trainer with exercise
prescription capability according to another embodiment of the
present invention.
[0089] An exercise prescription system 500 includes a gait trainer
510, a signal transmitting medium 550, and a server 590. The server
590 includes a central processing unit 560, an interface 570, and a
storage unit 580.
[0090] The gait trainer 510 is different from the gait trainer 100
illustrated in FIG. 1 in that the server 590 which defines the
exercise prescription is separated from the gait trainer 510.
[0091] The server 590 may be an external computer, a personal
computer, or a health information server belonging to an
organization such as a hospital. The exercise prescription system
500 has an advantage in that it can define a more specified and
specialized exercise prescription based on the physical condition
of the user since the server is separately included.
[0092] The gait trainer 510 illustrated in FIG. 5 and the gait
trainer 100 illustrated in FIG. 1 are substantially the same except
a control unit of the gait trainer 5 does not define the exercise
prescription directly. Therefore, the descriptions of the similar
elements will not be repeated.
[0093] When the gait trainer 510 collects the information about a
user's physical condition, the information is transmitted to the
server 590 through the signal transmitting medium 550. The signal
transmitting medium 550 may be a wired or wireless communication
network, or a broadband network such as the Internet. Thus, the
signal transmitting medium is not limited to a particular physical
medium for transmitting the signals.
[0094] The case where the server 590 is a personal computer will be
described below.
[0095] The user informs his computer that he is starting to
exercise. In this case, the signal transmitting medium 550 may
transmit the physical information using infrared communication,
serial communication using a universal serial bus (USB) standard,
parallel communication using a parallel port, or communication
using an IEEE1394. In addition, the information about the user's
physical condition may be transmitted using Bluetooth
communication. When the information is transmitted to the server
590, that is, the personal computer, the interface 570 adaptively
receives the information from the signal transmitting medium 550.
The information is provided to the central processing unit 560, and
the central processing unit 560 determines the optimum exercise
prescription based on the information about the exercise history of
the user and the received information about the user's physical
condition. The exercise pre scription is transmitted to the gait
trainer 510 through the interface 570. Then, the user exercises
according to the exercise prescription which is shown in the
display of the gait trainer 510. The information about the user's
physical condition may be input to the gait trainer 510 by the user
personally or collected using the various sensors attached to the
gait trainer 510. The physical information may also be stored in
the storage unit 580 of the server 590. Therefore, in this case
only the exercise information is transmitted from the gait trainer
510 to the storage unit 580 through the signal transmitting medium
550 while the user is exercising.
[0096] The case where the server 590 is a health information server
belonging to an organization such as a hospital will be described
below.
[0097] In this case a variety of expertise such as improved new and
specialized treatment can be updated continuously to the storage
unit 580. Thus, the central processing unit 560 can provide the
best medical service based on the new treatment or theories.
[0098] Furthermore, information about the exercise history of the
user can be referred to by experts such as doctors anytime they
want. Therefore, unlike when the user exercises by himself, the
user can refer to advise of the experts about the exercise
history.
[0099] While the present invention has been particularly shown and
described with reference to exemplary embodiments thereof, it will
be understood by those of ordinary skill in the art that various
changes in form and details may be made therein without departing
from the spirit and scope of the present invention as defined by
the following claims. For example, various sensors included in a
gait trainer 100 may include more or different measuring devices
besides the devices described above. Moreover, the pedals included
in the gait trainer 100 may include a shock absorber such as a
spring to increase absorption of pressure applied to the user's
bones.
INDUSTRIAL APPLICABILITY
[0100] The present invention is applicable to a gait trainer for
improving a user's health.
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