U.S. patent application number 11/993613 was filed with the patent office on 2010-03-25 for training tool.
Invention is credited to Naohiro Maki.
Application Number | 20100075819 11/993613 |
Document ID | / |
Family ID | 36240978 |
Filed Date | 2010-03-25 |
United States Patent
Application |
20100075819 |
Kind Code |
A1 |
Maki; Naohiro |
March 25, 2010 |
TRAINING TOOL
Abstract
To allow selection of width interval when held by both hands,
enhance the gripping performance, and be applicable to training and
rehabilitation of various parts of the body aside from hands and
feet. An integral loop of oblong rectangular frame in a plan view
consisting of a pair of first grips 1a almost parallel and relative
to each other, and a pair of second grips 1b almost parallel and
relative to each other, connecting both ends of the first grips 1a,
in a smaller mutual interval as compared with the first grips 1a.
The first grips 1a are straight or slightly curved, and the second
grips 1b are curved like an bow as seen from the front, and
slightly narrowed in an inward direction of the rectangular frame
in a plan view so as to be mutually closer in the central
portion.
Inventors: |
Maki; Naohiro; (Tokyo,
JP) |
Correspondence
Address: |
WEINER & BURT, P.C.
635 N US-23, POB 186
HARRISVILLE
MI
48740
US
|
Family ID: |
36240978 |
Appl. No.: |
11/993613 |
Filed: |
June 26, 2006 |
PCT Filed: |
June 26, 2006 |
PCT NO: |
PCT/JP2006/312711 |
371 Date: |
December 21, 2007 |
Current U.S.
Class: |
482/139 |
Current CPC
Class: |
A63B 21/4035 20151001;
A63B 21/0023 20130101; A63B 23/12 20130101; A63B 21/4043 20151001;
A63B 23/03541 20130101; A63B 23/1209 20130101; A63B 23/03525
20130101; A63B 71/00 20130101; A63B 21/0004 20130101 |
Class at
Publication: |
482/139 |
International
Class: |
A63B 71/00 20060101
A63B071/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 27, 2005 |
JP |
2005-186126 |
Claims
1. A training tool forming an integral loop of oblong rectangular
frame in a plan view consisting of a pair of first grips
substantially extending in parallel to each other, and a pair of
second grips substantially extending parallel to each other and
connecting both ends of the first grips, while the interval between
the second grips being smaller than that between the first grips,
wherein the first grips are straight or slightly curved, and
wherein the second grips are curved like an bow as seen from the
front, such that the central portions of the second grips extend
inwardly of the rectangular frame in a plan view so as to come
close to each other.
2. The training tool according to claim 1, wherein the connecting
portions of the first grips and second grips take a round
rectangular shape so that the wrist or ankle may be inserted in the
rectangular frame.
3. The training tool according to claim 1, wherein at least one
pair of the first and second grips are covered with elastic grip
covers.
4. The training tool according to claim 1, wherein at least one of
the first grips is provided with a weight.
5. The training tool according to claim 2, wherein at least one
pair of the first and second grips are covered with elastic grip
covers.
6. The training tool according to claim 2, wherein at least one of
the first grips is provided with a weight.
7. The training tool according to claim 3, wherein at least one of
the first grips is provided with a weight.
Description
TECHNICAL FIELD
[0001] The present invention relates to a training tool used in
muscle stretching, muscle strengthening, physical massage, physical
checkup, aesthetic weight loss training, in-hospital
rehabilitation, and other training menu, and usable in various
applications depending on training position of human body, mode of
use, or other selection.
TECHNICAL BACKGROUND
[0002] Hitherto, various training tools are known, as shown in
patent documents listed below. For example, patent document 1
discloses a muscle training tool of automobile driving wheel type
consisting of four bent pipes of cushioning property with rigid
coil springs linked between them to have a ring form. Patent
document 2 discloses a health ring having undulated surfaces for
massaging feet and arms by rolling. Patent document 3 discloses
another health ring having beads contained in a flexible net bag of
doughnut shape. Patent document 4 discloses a ring-shaped health
tool having a plurality of balls linked by a string coupler of
flexible elastic member.
Patent document 1: Japanese Utility Model Publication No. 5-58161
Patent document 2: Japanese Patent Publication No. 2000-157590
Patent document 3: Japanese Patent Publication No. 2003-33420
Patent document 4: Japanese Patent Publication No. 9-239065
DISCLOSURE OF THE INVENTION
Problems to be Solved by the Invention
[0003] However, such conventional training tools each has a pipe
which takes a doughnut shape or a circular shape. When the pipe is
gripped by both hands, an interval in the width direction between
grips is always constant. If it is required to have many portions
to be gripped positioned at different intervals to cope with muscle
training of different parts of body, many tools each having grips
at a different interval from other tools must be prepared. Further,
rings of smaller diameter such as gymnastic flying rings are not
suitable for firmly gripping by both hands because portions to be
gripped is too close to each other when they are gripped by both
hands. Besides, in such ring-type training tools, the purpose is
mainly limited to massaging and training of hands, arms, feet and
legs. They are inconvenient for the muscle stretching, muscle
strengthening or physical massage in other parts of the body. When
considered use of these conventional tools for physical checkup,
aesthetic weight loss training, or in-hospital rehabilitation, such
applications are difficult and have many known problems.
[0004] The present invention has been made in the light of these
problems of the conventional tools. It is hence an object of the
present invention to provide a training tool capable of varying
interval of gripping hands by selecting a position of grips,
enhancing the gripping force when held by both hands, and being
widely usable in various and multiple applications such as for
muscle stretching, muscle strengthening, physical massage, physical
checkup, aesthetic weight loss training, in-hospital rehabilitation
for various parts of the body by selecting the posture of the user,
such as, for pushing, pulling, gripping, half sitting, sitting or
lying, and selecting the direction of hands, such as, with normal
hands or reversed hands.
Means for Solving the Problems
[0005] To solve the problems, the present invention provides an
integral loop of oblong rectangular frame in a plan view consisting
of a pair of first grips substantially extending in parallel to
each other, and a pair of second grips substantially extending
parallel to each other and connecting both ends of the first grips,
while the interval between the second grips being smaller than that
between the first grips, wherein the first grips are straight or
slightly curved, and wherein the second grips are curved like an
bow as seen from the front, such that the central portions of the
second grips extend inwardly of the rectangular frame in a plan
view so as to come close to each other.
[0006] The connecting portions of the first grips 1a and second
grips 1b is a round rectangular shape, so that the wrist or ankle
may be inserted in the rectangular frame. At least one pair of the
first and second grips 1a, 1b are covered with elastic grip covers
8. At least one of the first grips 1a is provided with a weight
5.
[0007] In the training tool of the present invention having such
structure, the pair of first grips 1a and the pair of second grips
1b having a smaller mutual interval as compared with the first
grips 1a allow the interval between both hands to vary when the
user selectively grips the first grips 1a or second grips 1b.
[0008] The first grips 1a formed in a straight line or a slightly
curved line, and the second grips 1b curved like an bow as seen
from the front, and slightly bent in an inward direction of the
rectangular frame in a plan view are effective to enhance the
gripping force of the user when held by both hands, and the concave
and convex shape of the second grips 1b having the curved portion
helps the user to push, lift or warp various parts of the body to
realize training and stretching in multiple aspects.
[0009] Further, the user can insert the wrist or ankle inside of
and engage with the first grips 1a, and twist the wrist or ankle,
and can take various postures in various modes of use.
[0010] When the elastic grip cover 8 is held, and the parts of body
are pressed against, the reaction is soft, and the comfort of use
is enhanced for the user. The weight 5 of the first grip 1a
increases the centrifugal force when twisting or gripping by
holding the other first grip 1a not provided with the weight 5 by
one hand, and the training and stretching action is
intensified.
EFFECTS OF THE INVENTION
[0011] According to the present invention, when gripping by both
hands, by selecting and gripping either the pair of first grips 1a,
or the second grips 1b of smaller interval, the width interval of
both hands can be varied, when training or stretching by using both
hands, the pressing or relaxing action on various parts of body may
be effectively changed, and the gripping performance when held by
both hands or one hand may be also enhanced. Still more, the modes
of use may be variously changed, and, for example, depending on the
position or direction of pushing, pulling, or twisting the part of
body, the hands, arms, feet, legs, and other parts of body can be
trained or stretched, and it may be used in multiple applications
including muscle stretching and training, muscle strengthening,
body massage, physical checkup, aesthetic weight loss training, and
in-hospital rehabilitation.
[0012] This is realized by the present invention having the pair of
first grips 1a almost parallel and relative to each other, and the
pair of second grips 1b almost parallel and relative to each other,
connecting both ends of the first grips 1a, in a smaller mutual
interval as compared with the first grips 1a, and the first grips
1a and second grips 1b are formed in an integral loop. Hence, by
changing the gripping positions when held by both hands, the muscle
strengthening position may be selected by changing the width
interval of both hands, or by holding by both hands or one hand,
the pressing, pulling or twisting positions or directions of the
body may be changed and selected, and various types of training are
realized by laying up or down the body, sitting down, sitting
halfway, or standing, or pushing or pulling the whole body, or
parts of body, such as neck, shoulders, waist, abdomen, hands,
feet, wrist, or ankle.
[0013] The first grips 1a are formed in a straight line or a
slightly curved line, and the second grips 1b are curved like an
bow as seen from the front, and slightly narrowed in an inward
direction of the rectangular frame in a plan view so that the
central parts may be closer to each other, and therefore the first
grips 1a and second grips 1b enhance the gripping performance when
held by both hands. Since the second grips 1a are curved like a
bow, the convex portion may be used for pressing parts of body, and
applied in various training modes, such as stretching of neck or
waist, rehabilitation while sealed in wheelchair, massage on the
back by using chair or in lying position or standing position. The
concave portion of the second grips 1b may be fitted to parts of
body, and the body may be lifted by gripping the first grips 1a at
the same time.
[0014] The first grips 1a are formed in a round rectangular shape,
and the wrist or ankle may be inserted inside, and the wrist or
ankle may be inserted and twisted, or the ankle may be passed while
lying up or down on the floor, and lifted to stretch the legs and
waist.
[0015] At least one pair of the first and second grips 1a, 1b are
provided with elastic covers 8, and when gripping them, the touch
on hands and fingers is soft, and if the first and second grips 1a,
1b are made of aluminum or other metal, the touch is improved, and
the feel of use is excellent.
[0016] Further, either one of the pair of first grips 1a is
provided with a weight 5, and the other first grip 1a not provided
with weight 5 is held by one hand, and by gripping and shaking the
tool main body 1, the centrifugal force is increased, and by
gripping the imbalanced training tool having the weight at one
side, a delicate sense of balance of the body may be created, and
stimulation can be applied to the brain and muscle, and the inner
muscles of shoulder or scapula may be trained.
[0017] On the other hand, the skeleton of a human being walking on
two feet is structurally very heavy in the load in the central body
parts including the pelvis, spine, and scapular cord, and lumbago,
stiff shoulder and back pain are likely to occur due to stress,
lowering of muscular strength, or strain of body. Accordingly, by
fitting the second grips 1b of bow shape of the training tool
having the structure of the present invention to the pelvis, spine,
or scapular cord, these troubles are improved. For example, by
moving the second grips 1b and rubbing against the pelvis or dorsal
muscle, and their movable regions can be expanded, and when rubbed
against the spine or latissimus dorsi of the back, the spine can be
adjusted by the user alone, or when rubbed against the pelvis,
stiff shoulder or lumbago may be improved, and outstanding effects
are obtained in the training of abdominal muscle, dorsal muscle,
and the soma.
[0018] Applications are further expanded to core relaxation for
improving fatigue or tension of core muscles, core strengthening
for fortifying core muscles, rehabilitation of elderly people or
patients in care center or hospital, improvement of physical
function of ordinary people, self-massage of hands, feet and waist,
and training and stretching of athletes and sportsmen.
[0019] It may be further applied in physical checkup of muscular
strength, flexibility, and sense of balance of parts of body. For
example, physical strength and muscular balance of the user can be
tested depending on the abdominal muscle strength, dorsal muscle
strength, sense of balance, movable range of scapula, retaining
force of adductor, Ham test, flexibility of diaphragm, flexibility
of hip joint by knee narrowing, number of times, or duration of
use. Besides, two people can make a pair to check the physical
conditions while enjoying like a game.
[0020] Still more, the training tool of the present invention is
usable as a new item in sports club, following the balance ball and
stretch ball, and it is usable as exercise good for women in sports
club. By abdominal massage of the subcostal diaphragm, deep
breathing can be learned, or peristalsis of small and large
intestines is promoted, and constipation may be cleared. In a
sports club, this training tool is placed at the side of the
stretch board for training, and it is readily used as a stretch
partner.
[0021] On the other hand, in studio program, it can be used as
assisting tool for core training, stretch class, chair exercise,
pilates, muscle conditioning, abdominal tightening, weight loss,
fighting, etc. In particular, it is expected to have effects on
enhancement of performance of athletes, and sharpness of hip
muscles may be intensified among gold, baseball or tennis
players.
[0022] Further, fine actions and speedy move of scapula favored by
players of soccer, rugby and boxing may be expected to be
strengthened. In particular, baseball pitchers are extremely
fatigued in inner muscles of shoulder, and by holding the training
tool by one hand, setting the shoulder in zero position, and
shuffling by bending the elbow slightly, shoulder fatigue may be
prevented or improved.
[0023] For office workers, by simple stretching, fatigue from hours
of computer and desk work may be alleviated. For students in class
or at home, stiff shoulder is improved and learning ability is
enhanced, and it is also use as lumbago remedy or sleepiness
preventive tool for drivers and those seated for a long time in
airplane, vehicle, cinema, etc.
[0024] When the first grips 1a and second grips 1b are made of
waterproof materials, the tool can be used in underwater training
and stretching in bathroom, sauna room, swimming pool or the like,
and various motions making use of resistance or buoyancy of water
are possible as aquatic exercise in rehabilitation.
[0025] Reference numerals provided in the means for solving the
problems and effects of the present invention are intended to
correspond to the reference numerals provided in the drawings, and
the present invention is not limited by the structure and shape
indicated by the reference numerals in the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] FIG. 1 is an overall perspective view showing a best mode
for carrying out the present invention.
[0027] FIG. 2 shows an example of training tool of the embodiment,
(a) being a plan view, (b) being a front view, and (c) being a side
view.
[0028] FIG. 3 is a perspective view of other embodiment, being
formed by metal pipe materials.
[0029] FIG. 4 is a perspective view of other embodiment, being
formed by metal pipe materials, and coated with covering
materials.
[0030] FIG. 5 is a perspective view of other embodiment, being
coated with grip covers.
[0031] FIG. 6 shows examples of method of use of the training tool,
(a) being a front view in which the first grips are held by both
hands, (b) being a front view in which the second grips are held by
both hands, (c) being a side view in which one first grip is held
by one hand, (d) being a side view in which one second grip is held
by one hand, and (e) being a front view in which both wrists are
inserted into the main body of the tool.
[0032] FIG. 7 shows another examples of method of use, (a) being a
side view of the body in which the first grips are held by both
hands and arms are bent back and forth, (b) being a front view of
the body moved horizontally sideways, (c) being a front view of a
twisted body, (d) being a side view of the body lifted upward, and
(e) being a front view of the body bent and twisted in the upper
half with the head left behind.
[0033] FIG. 8 shows further examples of method of use, (a) and (b)
being side views for stretching the waist and back.
[0034] FIG. 9 is a side view of method of use, in which the body is
arched on the floor and stretched.
[0035] FIG. 10 is a front view of method of use, in which the user
sits on a chair, grips by both hands, and twists the body back and
forth.
DESCRIPTION OF THE REFERENCE NUMERALS
[0036] 1 Tool main body [0037] 1a First grips [0038] 1b Second
grips [0039] 2 Pipe [0040] 3 Cover member [0041] 4 Tape [0042] 5
Weight [0043] 6 Coupling member [0044] 6a Large end [0045] 6b Small
end [0046] 7 Screw [0047] 8 Grip cover
BEST MODE FOR CARRYING OUT THE INVENTION
[0048] Referring now to the drawings, a best mode for carrying out
the present invention is described, and reference numeral 1 in the
drawing denotes a tool main body made of wood, aluminum or other
method for composing the training tool of the present invention
formed in a desired size so as to be usable by men, women, and
children. The tool main body 1 is a frame body of integral loop, as
shown in FIG. 1 and FIG. 2, having a pair of first grips 1a almost
parallel and relative to each other formed in a slight line or
slightly curved shape, and a pair of second grips 1b almost
parallel and relative to each other in a smaller mutual interval as
compared with the first grips 1a for connecting mutually both ends
of the first grips 1a.
[0049] In an overall plan view, the outer shape is a round oblong
rectangular shape resembling a human pelvis seen from above, and
the mutual interval of the first grips 1a is wider than the mutual
interval of the second grips 1b, being about 2 to 4 times larger.
The second grips 1b are slightly narrowed in the mutual interval in
inward direction, and are curved like a bow in a direction nearly
orthogonal to the narrowing direction, and a wing-like arch is
formed. The arch forms the narrow interval portion formed by
curving a quarter bow of a circumference, and the entire shape is a
wing-like arch, formed in a loop frame together with the first
grips 1a.
[0050] That is, in an overall plan view, the first grips 1a are
positioned at right and left sides of the plane, and the second
grips 1b are positioned at front and rear (upper and lower) sides
(see FIG. 2 (a)), and in an entire front view, the first grips 1a
are at lower position in lateral direction, and the second grips 1b
are positioned above the first grips 1b in longitudinal direction,
presenting a convex shape (see FIG. 2 (b)), and in an entire side
view, the first grips 1a are positioned at front and rear (left ad
right) sides, and the second grips 1b are positioned above the
first grips 1a at left and right (front and rear) sides (see FIG. 2
(c)). The directions such as front, plan and side are intended to
explain the shape of the training tool of the present invention,
and are not intended to specify the present invention.
[0051] The second grips 1b are slightly narrowed in a plan view so
as to be closer to each other, and the spreading angle is about 150
degrees, but depending on the case, they may be set almost parallel
without being narrowed. The first grips 1a and second grips 1b have
a proper outside diameter so as to be gripped directly by the hands
and fingers of the user, and the first grips 1a have a flat and
slightly round rectangular frame shape, and the wrist or ankle may
be inserted inside the rectangular frame, and when the first grips
1a and second grips 1b are held by both hands, the internal space
is wide enough not to cause direct contact of fingers of right and
left hands.
[0052] The specific size of the parts of the tool main body 1 is
properly specified, that is, the diameter of first grips 1a is
about 25 mm, the diameter of second grips 1b is about 20 mm, so
that the outside diameter may be gripped easily by fingers, the
outside width at the end of first grips 1a is about 130 mm, the
outside width in the middle of second grips 1b is about 100 mm, and
the height from the end of first grips 1a to the middle of second
grips 1b is about 100 mm. The mutual interval of second grips 1b is
about 60 mm in the inside width corresponding to a proper interval
when the tool is fitted to both sides of the spine of the user. The
curvature size of first grips tai is about 85 mm in inside width
for the ease of passing or fitting the arm, wrist or ankle, and the
curvature size of second grips 1b is about 120 degrees in the
curvature angle when the tool main body 1 is seen from side. These
specific dimensions are mere examples, and the present invention is
not limited to these dimensions alone.
[0053] The shape of the tool main body 1 may be carved from a
wooden block, for example, or a loop may be formed of first grips
1a and second grips 1b by bending and deforming rod materials in
high temperature heating furnace. Or, wooden blocks may be machined
by machine tool, and the first grips 1a and second grips 1b may be
formed integrally in a specified shape. When using wood materials,
if necessary, a reinforcing agent may be impregnated.
[0054] In other example of manufacturing the shape of the tool main
body 1, as shown in FIG. 3, the middle position of aluminum pipe 2
is curved and formed into the shape of second grips 1b, and both
sides are folded, and formed integrally to a size of about half
length of first grips 1a, and symmetrical right and left halves of
the tool main body 1 are fabricated preliminarily. Small ends 6b
are formed integrally at both side through a central large end 6aa,
and a circular columnar coupling member 6 having a resisting
strength is formed, and the small ends 6b are inserted into opening
ends of the first grips 1a, and screws 7 are tightened and fixed
from both sides, and the split first grips 1a are coupled and
fixed, and an integral loop is formed.
[0055] In other example of the embodiment, as shown in FIG. 4, out
of the mutually opposing first grips 1a, one side may be provided
with a slightly thick weight 5. In this case, when manufacturing
the shape of the tool main body 1, first, part of rigid pipe 2 of
circular ring metal or the like is cut off, and the cut portion is
fused and connected through a metal solid weight 5, and an arc
portion of the weight 5, and the opposite arc portion are cut off,
the central parts of the mutually opposite arc portions are
mutually narrowed inward by compressive deforming, and by curving
in concave and convex profile in direction nearly orthogonal to the
narrowing direction, so that the first grips 1a and second grips 1b
may be formed.
[0056] As required, further, the circumference is coated with a
soft cover member 3 of urethane resin or silicone rubber, and a
tape 4 of cork material having various color patterns formed the
surface is wound thereon. At this time, the tool main body 1 is
formed into a proper size depending on users, adult men, adult
women, or children. Instead of using soft member 3, the pipe 3 may
be directly wound with cork tape 4.
[0057] In manufacture of shape of the tool main body 1, the pair of
first grips 1a of pipe 2 and pair of second grips 1b of pipe may be
preliminarily formed in specified shape, and then they may be
coupled by welding or other process. Not limited to metal pipe 2,
for example, rigid synthetic resin may be used. In this case, the
rigid synthetic resin material is molded by injection, and the
first grips 1a and second grips 1b are individually formed
integrally. The material of pipe 2 includes polypropylene resin,
polyurethane resin, other synthetic resins, stainless steel,
titanium, other metal materials, and shape memory alloys, and the
cover material includes polypropylene resin, polyurethane resin,
other synthetic resins, natural and synthetic leather materials,
rubber, and cloth materials.
[0058] As shown in FIG. 5, the first grips 1a may be coated with an
elastic grip cover 8 known as sponge rubber, and this grip cover 8
helps to fit the hands and fingers softly when gripping the first
and second grips 1a, 1b. The grip cover 8 may be also applied on
the second grips 1b, or all parts of the first grips 1a and second
grips 1b may be covered.
[0059] A best method of using the tool having such configuration is
described. In the form of use, the gripping mode of the tool main
body 1 includes selecting of first grips 1a or second grips 1b when
inserting inside or gripping, holding by one hand or two hands,
holding in normal hands or reverse hands, sitting in chair, lying
up or down on floor of the use when gripping, standing on open
legs, standing on closed legs, squatting, pushing or pulling on
whole body, twisting, and changing positions in more than 300
different styles, and only typical examples are shown below.
[0060] When the tool main body 1 is held by both hands, by holding
the first grips 1a by both hands as shown in FIG. 6 (a), the width
interval is wide, or holding the second grips 1b by both hands as
shown in FIG. 6 (a), the width interval is narrow. Thus, by holding
either the first grips 1a or the second grips 1b by both hands, the
width interval is changed, and positions of training or stretching
can be easily changed.
[0061] When the tool main body 1 is held by one hand, one of the
first grips 1a is held by one hand as shown in FIG. 6 (c), or one
of the second grips 1b is held by one hand as shown in FIG. 6 (d).
When held by one hand or both hands, the arch-curved convex side of
the second grip 1b may be directed either ahead of or behind the
body. Besides, the wrist may be inserted in the first grips 1a (see
FIG. 6 (e)).
[0062] Next, the first grips 1a of the tool main body 1 may be held
by both hands. The second grips 1b of the tool main body 1 may be
held by both hands. Training or stretching while seated in chair
may be also possible. By changing the fitting position of the body
by the tool main body 1, a desired "tsubo" can be stimulated.
[0063] As shown in FIG. 7, the first grips 1a are held by both
hands, and the arms are stretched forward, or pulled toward the
body (FIG. 7 (a)), or while the first grips 1a are held by both
hands, they are moved horizontally right and left (FIG. 7 (b)), or
the first grips 1a are held by both hands and twisted and rotated
(FIG. 7 (c)), the both arms are raised above the head and warped
longitudinally and laterally (FIG. 7 (d)), or the grips are twisted
laterally behind the head (FIG. 7 (e)), and various modes of
exercise are realized.
[0064] As shown in FIG. 8 (a), the first grips 1a of the tool main
body 1 are held by both hands, and the arch-curved convex side of
the second grip 1b is fitted to the backbone or the waist, and is
rubbed against the spine wile changing the speed, or pushed
forward, or pushed in eight directions in vertical, lateral and
oblique directions. At this time, as shown in FIG. 8 (b), it is
effective to warp behind either foot while folding its knee, and as
required, in this case, the pelvis may be gyrated when fitting to
the waist.
[0065] As shown in FIG. 9, the tool main body 1 is placed on the
floor, and the tool main body 1 is supported on the floor by the
first grips 1a, and the arch-curved convex side of the second grip
1b is directed upward. The user lies in face-up position, and
stretches by warping the back or waist against the convex side of
the second grip 1b. The user further sits up and trains by raising
the upper half or lower half of the body in face-up position on the
floor.
[0066] As show in FIG. 10, by gripping two tool main bodies 1 by
both hands, the both hands are moved in balance, and the body is
warped or twisted back and forth, right and left, or the entire
body is twisted, and trained and stretched in various manners. At
this time, by sitting in chair, the body can be twisted more
widely, and the efficiency may be enhanced.
[0067] Thus, the tool main body 1 of the present invention may be
applied to any position of the body, and it can be easily used in
muscle stretching, muscle strengthening, and body massage, and
further in physical checkup, aesthetic weight loss training, or
in-hospital training.
* * * * *