JP2016069764A - Sportswear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide sportswear allowing a wearer to easily raise a foot and suppressing deviation of a knee.SOLUTION: Sportswear 10 according to the present invention to be worn closely fitted to a body, includes a part for covering at least from the lumbar part to calf lower parts, and composed of a fabric with elasticity. The sportswear 10 includes a body part 14, and tightening parts having tightening force stronger than that of the body part 14. Each tightening part includes a first tightening part 11 that is so disposed as to start from an anterior part of a hip joint, via an anterior thigh, a posterior thigh, and a lateral part of the thigh, and to be returned to the anterior part of the hip joint.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an exercise garment having a portion covering at least a waist part and a lower calf part.

Conventionally, in the field of sportswear, it has been studied to provide a function to support exercise by using an appropriate material. In recent years, sportswear has been proposed in which a portion having a strong tightening force is formed and the function of supporting exercise is improved. For example, Patent Literature 1 covers at least a part of a leg part, and expands and contracts in accordance with the shape of the leg part, and is attached to the bottom wear part, and the inside and outside of the knee area corresponding to the patella A tightening belt that extends in the vertical direction of the leg and generates contraction force, and a knee support that covers a patella area sandwiched between the tightening belts and expands and contracts according to the bending and stretching movements of the knee joint A crotch garment is disclosed.
In Patent Document 2, the main component is formed of a stretch material and is worn in a state of being in close contact with the surface of the lower body of the wearer. The tightening force of the first type of material is the tightening force of the second type of material. An exercise spat that is stronger than force, and the first type of material includes a region covering a portion from the iliac crest to the popliteal muscle through the fascia latae muscle and the lateral collateral ligament, and the iliac crest An exercise spat is disclosed which is disposed in a position including a region covering a portion extending to the popliteal muscle via the sewing muscle and the medial collateral ligament, and further to a portion reaching the rough surface of the tibia and a portion reaching the hamstrings.

Japanese Patent No. 4642524 JP 2007-23466 A

However, in Patent Document 1, stable movement of the knee joint is mainly supported by providing a difference in tightening force and stretchability of the bottom wear portion, the tightening belt portion, and the knee support portion. There is no particular mention of places that actively support exercise.
Further, in Patent Document 2, the muscle corresponding to the knee joint back mainly from the inner thigh portion and the outer thigh portion is covered with a material having a first tightening force having a strong tightening force, and the other portions are the second having a weak tightening force. By covering the portion having the tightening force, the material having the first tightening force contracts in accordance with the contraction of the muscle to synergistically strengthen the motor function, and also covers a part of the rough surface of the tibia It is disclosed that the impact on the knee joint at the time of landing is mitigated, and further, the operation of carrying the leg from the back to the front is covered by covering the hamstrings. It is not mentioned, and it is desirable to consider a design, configuration, and verification method for easily raising a foot during exercise and at the same time suppressing knee shaking.

  In order to solve the above-described conventional problems, the present invention provides an exercise garment that can easily raise a foot during exercise and at the same time suppress knee shake.

The exercise garment of the present invention is an exercise garment worn in a state of being in close contact with the body,
The exercise garment has a portion covering at least the waist and the lower calf, and is made of stretchable fabric.
The exercise garment has a main body part and a tightening part having a stronger tightening force than the main body part, and the tightening part starts from the front part of the hip joint and passes through the front thigh part, the thigh inner part, the thigh rear part, and the thigh outer part. And a first tightening portion disposed back to the front portion of the hip joint.

  In the exercise garment of the present invention, the tightening portion is mainly arranged so as to lift the back side of the thigh from the waist, so that when the foot is kicked back, it becomes a tension, supports the foot lift, and also the shake of the knee. It can be reduced and comfortable walking and running can be performed.

FIG. 1A is a front view of one embodiment of the exercise garment of the present invention, FIG. 1B is a rear view thereof, and FIG. 1C is an outer side view thereof. 2A is a front view of another embodiment of the exercise garment of the present invention, FIG. 2B is a rear view thereof, and FIG. 2C is an outer side view thereof. FIG. 3A is a graph showing the amount of muscle activity of the rectus femoris muscle when the subject wears the exercise clothing of the present invention and is running, and FIG. 3B shows the exercise clothing of the present invention in the subject. Fig. 3C shows a change in the amount of muscle activity of the rectus femoris muscle in a line graph, with one cycle from the contact of the right foot during running to the next contact with the right foot in the time series of one subject. FIG. 5 is a schematic diagram illustrating a one-cycle running operation from the side of a human body projected from the side, from the time when the right foot touches down to the next time the right foot touches down. FIG. 4A shows the amount of blurring of a marker provided on a subject's knee by wearing a sports garment or the like of the present invention on a subject and running with a running motion analysis system (Mizuno Co., Ltd .: FORM). It is the graph which analyzed and compared. FIG. 4B shows that the exercise clothing of the present invention is attached to a mannequin (manufactured by Nansai Co., Ltd., 20s male average human body size dummy, product number: MD-20), and the clothing pressure at the knee is measured with a contact pressure meter (( It is the graph which measured and compared with the product made by AM eye techno company.

  The exercise clothing that supports the exercise function so far has obtained a desired effect by individually providing the tightening portion at the target site, but the exercise clothing according to the present invention has the tightening portion on the back side of the thigh. By placing the foot, it becomes tension when kicking out the foot later, supports the raising of the foot, and can further reduce the shaking of the knee.

Furthermore, by placing tightening parts around the knee, it promotes the effect of reducing the shake at the knee, and the synergistic effect of raising the foot and reducing the shake of the knee makes walking and running more comfortable than the independent effects. Is something that can be done.

  In the present invention, “having stretchability” means that the elongation rate in the short axis direction of the body and / or the elongation rate in the long axis direction of the body exceeds 0%. In the present invention, the elongation rate means a value measured according to JIS L 1096. Specifically, the length of the fabric piece in a state where no load is applied is A, and a load of 17.6 N is applied. When the length of the cloth piece in the applied state is B, the elongation rate is calculated by (B−A) / A × 100.

  In the present invention, in order to create a “substantially close contact” state, the peripheral direction is 50 to 110%, more preferably 70 to 95%, and the length is 75 to 100% relative to the naked size of the human body. Preferably, exercise clothes are formed as 85 to 100%. Of course, since the size of the human body varies among individuals, the above ratio is a guide. More specifically, the size is determined according to the JASPO standard.

  The exercise garment of the present invention has a main body portion and a tightening portion having a tightening force stronger than that of the main body portion. In general, the lower the elongation rate of the fabric, the stronger the tightening force. In the present invention, the strong tightening force means that the elongation rate is low, particularly the elongation rate in the longitudinal direction of the body (hereinafter simply referred to as the long-axis elongation rate). Means low).

  Hereinafter, the exercise clothes of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1A, B, and C and FIGS. 2A, B, and C, the exercise clothes 10 and 20 of the present invention are not particularly limited as long as they have at least a portion covering from the waist to the lower calf. For example, it may be formed so as to cover from the waist to the instep.

  The tightening portion according to the present invention is a first tightening portion 11, 21 that starts from the front of the hip joint, passes through the front thigh, the inside of the thigh, the back of the thigh, and the outside of the thigh, and is returned to the front of the hip joint, By arranging the tightening portion in this way, it is preferable that the thigh is lifted from the side by supporting the inner side of the thigh and the outer side of the thigh up and down preferably with the waist as the starting point (anchor). In addition, the support by the tightening portion extends to the back of the thigh, so that not only the lifting effect by the tightening portion that is in close contact with the side surface of the thigh, but also the action of lifting in the hammock shape by the tightening portion of the back of the thigh has the effect of lifting the back of the thigh more. Will be obtained.

  Further, the first tightening portions 11 and 21 are adjacent to a location starting from the front portion of the hip joint and a location to be returned to the front portion of the hip joint via the inner thigh portion, the rear thigh portion, and the outer thigh portion, It is preferable that the substantially straight portions extending in the longitudinal direction are adjacent to each other, and by arranging the tightening portion in this way, the tightening portion disposed in the front portion of the hip joint has a width approximately doubled, and the above-described thigh rear portion The lifting effect is nearly doubled. Furthermore, it is preferable that the distance that the substantially linear portions extending in the longitudinal direction are adjacent to each other is longer and the lifting effect is exhibited.

Further, the tightening portion according to the present invention is connected to a part of the inner thigh portion of the first tightening portion 11 and is disposed on the lower side along the inner thigh portion, via the knee joint inner side and the front shin inner portion. It is preferable that the second tightening portion 12 is disposed so as to reach the lower part of the front shin. By arranging the second tightening portion 12 in this manner, the entire vertical distance of the leg portion is supported, and the motion control is performed. The ease of operation is improved, and further, since it is connected to the first tightening portion 11, the vertical direction from the front portion of the hip joint, preferably from the waist, is supported, and the ease of operation control is further improved. It will be.
Furthermore, since the tightening portion does not cover the muscular abdomen of the muscle, it does not suppress the muscular strength and does not impair it.

Further, the tightening portion according to the present invention is connected to a part of the first tightening portion 11 in the outer thigh portion, and is connected to a part of the second tightening portion 12 via the knee joint outer portion and the lower part of the anterior knee. It is preferable that the third tightening portion 13 is arranged. By arranging the third tightening portion 13 in this way, the first tightening portion 11 and the second tightening portion 12 can be interlocked to easily raise the knee. It becomes the effect which suppresses shaking.
Furthermore, since the tightening portion does not cover the muscular abdomen of the muscle, it does not suppress the muscular strength and does not impair it.

Further, the tightening portion according to the present invention has a line shape having a width, and the width is preferably 4 to 6 cm, and further, all of them are formed to have substantially the same width (with a tolerance of ± 0.3 cm). It is preferable.
When the width of the tightening portion is smaller than 4 cm, the support effect by the tightening portion is not sufficiently exhibited, and the effect of the present invention cannot be sufficiently achieved. Also, when the width is larger than 6 cm, the tightening force is too strong, and the comfort is deteriorated. At the same time, the muscular belly of the muscle is covered widely, which leads to inhibition of the movement.
Furthermore, by forming the tightening part width substantially the same, the overall support force from the tightening part is given to the corresponding part of the leg part substantially the same, and the partial support force that varies depending on the part is uncomfortable in comfort. For example, when a fabric is used as the material of the tightening portion, it is not necessary to separate the fabric into different widths, which leads to a reduction in manufacturing cost.
Furthermore, the balance of the overall tightening force can be maintained.

  In addition, as shown in FIGS. 1B and 2B, the line on the rear surface of the thigh in the first tightening portions 11 and 21 is more distal than the proximal half in the vertical direction of the rear surface of the thigh and above the knee joint. It is preferable that they are arranged. By arranging the tightening portion in this way, an efficient foot support that takes into account the center of mass position on the frontal plane (any plane that divides the human body into the front and back sides) between the thigh and the entire lower limbs Can be realized. As the shape of the tightening portion line, it is preferable that the line is formed in a downwardly convex arc shape. By such a shape, the lifting effect by the tightening portion connected from the top is gently transmitted to the leg portion. Therefore, there is no partial force applied, and it is possible to realize a foot-lifting support without causing pain or discomfort.

  Here, the center of mass of the entire lower limb is specified. The mass ratio of the part to the total body weight, the ratio of the distance from the proximal end to the center of mass of each part to the total length, is "estimation of body part inertia characteristics of Japanese athletes" (Ae et al., 1992, Biomechanism) The length of each part was 3D human body motion analysis data using markers. The test subject was a Japanese man in his twenties, and the measurement was performed on the front face, assuming a stationary standing and running posture.

As a result, the following estimation results were obtained. When standing still
・ Distance from floor to greater trochanter: 0.873m
・ Distance from the floor of the lower limb center of gravity: 0.543m
・ Thigh length (large trochanter-knee joint center): 0.384m
The mass center of the entire lower limbs obtained from the above data was 85.8% in terms of the ratio (%) of the distance from the proximal end of the thigh to the mass center with respect to the total length.

Similarly, the center of mass was determined using the above method during running.
The running data was estimated from one cycle until the heel touched again after starting from the heel touching of the right foot.
As a result, it is found that the calculated center of mass of the entire lower limb varies between 73.5 and 87.0% in the ratio (%) of the distance from the proximal end of the thigh to the center of mass. It was.

Moreover, it is known that the center of mass of the thigh exists at a position of about 47.5% of the thigh proximal.
Therefore, if the line on the rear surface of the thigh of the tightening portion is arranged closer to the proximal half, the lower limb inertia moment about the hip joint generated at the thigh during exercise becomes weak, and the tightening portion is not made stronger. And it will not be possible to achieve a sufficient support for raising the foot, and the feeling of wearing will also deteriorate. Therefore, if the tightening portion is disposed more distally than the proximal half, the lower limb inertia moment generated in the thigh during exercise becomes strong, and a strong support force can be obtained. Moreover, the vicinity of the center of mass of the whole lower limb part specified above will also be supported. However, if the tightening portion reaches the knee joint, the operation of the knee joint is hindered, and the line on the back of the thigh of the tightening portion is preferably disposed above the knee joint.

  The term “proximal” and “distal” refer to directions in anatomy, and the closer to the trunk is the proximal and the farther is the distal. For example, the proximal thigh 1/2 is a half point starting from the base of the thigh from the base of the thigh forming the thigh to the knee joint, here in the vertical direction. It becomes. Further, the term “proximal to the thigh proximal ½” means the upper part of the half of the thigh starting from the base of the thigh to the knee joint. Further, the term “distal from the proximal thigh of the thigh” refers to a portion lower than a half of the thigh starting from the base of the thigh to the knee joint.

In addition, as described above, the center of mass on the frontal face of the entire lower limb during running varied during running, and it was possible to specify that the center of mass exists at a position of about 2/3 to 3/4 of the thigh. Therefore, in order to effectively support the entire lower limb, it is more preferable that a line on the rear surface of the thigh of the first tightening portions 11 and 21 exists so as to support this position.
By doing so, considering the center of mass at the frontal plane of the thigh, the leg is supported by the moment of inertia of the lower limbs, and the center of mass at the frontal plane of the entire lower limbs is further supported. Thus, the effect of making the entire leg easy to carry is obtained.

Moreover, it is preferable that the material which comprises each of the said 1st fastening parts 11 and 21, the 2nd fastening part 12, and the 3rd fastening part 13 is connected seamlessly.
Since the materials that make up each tightening part are connected seamlessly, there is no problem that the parts corresponding to each tightening part are locally strongly supported or there is not enough support force, and the support force is even. Therefore, there is no local sense of incongruity by each tightening portion, which leads to prevention of the strength of the support force, and the overall tightening force balance can be maintained.

  Further, the ratio of the elongation rate in the long axis direction of the body constituting the tightening portion according to the present invention (hereinafter simply referred to as the long axis elongation rate) to the long axis elongation rate of the fabric constituting the other part is 1. 0.1 to 2.2 is preferable, 1.2 to 1.8 is more preferable, and 1.4 to 1.6 is still more preferable. When the ratio of the elongation ratio is in the above range, the support force for raising the foot is easily exhibited while maintaining ease of movement, and the effect of reducing the shaking of the knee is improved.

  In addition, the elongation rate in the longitudinal direction of the body constituting the tightening portion according to the present invention (hereinafter simply referred to as the long-axis elongation rate) is other than the tightening portion (hereinafter simply referred to as other portions). 10) or less, more preferably 20% or more, and even more preferably 30 to 50% lower than the long-axis elongation rate of the dough constituting the material. The difference between the long-axis elongation rate of the fabric constituting the tightening portion and the long-axis elongation rate of the fabric constituting the other part is 45% or more, so that the leg lifting support force can be more effectively exhibited. Knee shake can be reduced.

  Moreover, it is preferable that the long-axis elongation rate of the fabric | combination which comprises the tightening part by this invention is 70 to 110%, and it is more preferable that it is 80 to 100%. This is because the muscle shape support feeling when muscular strength is exerted is excellent, and there is no pressure feeling and the wearing feeling is also excellent. The major axis elongation of the dough forming the other part is preferably 80% or more, more preferably 100% or more, and further preferably 120 to 140%. It prevents the feeling of pressure from being too strong and prevents it from becoming difficult to wear.

  Moreover, it is preferable that the elongation rate in the major axis direction of the first tightening portions 11, 21, the second tightening portion 12, and the third tightening portion 13 is substantially the same. Since the elongation rate in the major axis direction of each of the tightening portions is substantially the same, there is no problem that the portion corresponding to each tightening portion is strongly supported locally or the support force is insufficient, and evenly. Since the support force is obtained, there is no local discomfort due to each tightening portion, which leads to prevention of the strength of the support force, and the overall tightening force balance can be maintained.

In the present invention, the fabric is not particularly limited as long as it has elasticity, and for example, a normal clothing fabric such as a woven fabric or a knitted fabric can be used. As the woven fabric, for example, plain weave, oblique weave, satin weave, altered plain weave, altered satin weave, altered satin weave, alter weave, crest weave, one-ply weave, double structure, multiple structure, warp pile weave, weft pile weave, Examples include tangle weaving. Examples of knitted fabrics include round knitting, weft knitting, warp knitting (including tricot knitting and raschel knitting), pile knitting, flat knitting, tengu knitting, rib knitting, smooth knitting (double-sided knitting), rubber knitting, pearl knitting, Denby organization , Cord tissue, atlas tissue, chain tissue, insertion tissue and the like. The fabric is not particularly limited, for example, having a basis weight preferably in the range of 120~380g / ^{m 2,} more preferably from 140~300g / ^{m 2,} more preferably in the range of 160~250g / ^{m 2.} If it is said range, there exists an advantage which does not impair a motor function, is durable, is light and is easy to move. The fabric may be impregnated or pressed with an elastomer resin or rubber. Elastomer resins include urethane elastomers, soft vinyl chloride elastomers, styrene elastomers, olefin elastomers, ester elastomers, amide elastomers, chlorinated polyethylene elastomers, Syn-1,2-polybutadiene elastomers, Trans-1 , 4-polyisoprene elastomer, fluorine elastomer and the like. Examples of the rubber include silicone rubber, fluorine rubber, urethane rubber, synthetic rubber, and natural rubber. Moreover, the said cloth | dough may be 1 sheet | seat and what laminated | stacked the 2 sheet | seats of a different elongation rate may be sufficient.

  The fiber constituting the fabric is not particularly limited, for example, polyester fiber such as polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyurethane fiber, polyamide fiber, acetate fiber, cotton fiber, rayon fiber, ethylene vinyl alcohol fiber. Nylon fiber or the like can be used.

  The athletic garments 10 and 20 may be configured to form a tightening portion and other parts by using fabrics having different elongation rates, respectively, and after creating the clothing with one type of fabric having a predetermined elongation rate, The tightening portion may be formed by double hitting. In addition, using a special fabric made of nylon fiber yarn and polyester fiber yarn, such as “Seiren Bisco Magic” (manufactured by Seiren Co., Ltd.), only polyester fiber is melted in a special solvent at a specified position to tighten it. May be formed. Moreover, you may produce by knitting a fastening part and another site | part with a different fiber composition using the exclusive machine of "Hall Garment" of Shima Seiki Seisakusho. Above all, from the viewpoint of a better wearing feeling, the exercise clothes 10 and 20 use special fabrics such as “Seiren Bisco Magic” (manufactured by Seiren Co., Ltd.) or “Hall Garment” dedicated machine from Shima Seiki Seisakusho. It is preferable to form them.

  Hereinafter, it demonstrates more concretely using an Example. In addition, this invention is not limited to the following Example.

Example 1
Circular knitted fabric (polyester fiber) having a long-axis elongation of 138.5%, a short-axis elongation of the body (hereinafter simply referred to as short-axis elongation) of 146.1%, and a basis weight of 170 g / m ² Using 84% by mass and 16% by mass polyurethane fiber) as the main fabric, running tights as shown in FIG. 1 were produced. Further, a tricot warp knitted fabric (87% by mass of nylon fiber and 13% by mass of polyurethane fiber) having a major axis elongation of 117.5%, a minor axis elongation of 54.8% and a basis weight of 115 g / m ² is doubled. As shown in FIG. 1, the first tightening portion 11, the second tightening portion 12, and the third tightening portion 13 were formed with substantially the same width of 5 cm. The long-axis elongation of the fabric forming the tightening portion (the fabric after double punching) was 91.7%, the short-axis elongation was 47.4%, and the basis weight was 285 g / m ² . In addition, the ratio of the long-axis elongation rate of the fabric forming the tightening portion to the long-axis elongation rate of the fabric forming other portions was 1.51.

(Example 2)
As shown in FIG. 2, the running tights were the same as those in Example 1 except that the first tightening portion 21 was formed with substantially the same width of 5 cm and the second and third tightening portions were not provided.

(Example 3)
The main body fabric was used in the same manner as in Example 1, and a tricot warp knitted fabric (92% by mass of nylon fiber, having a major axis elongation of 131.2%, a minor axis elongation of 63.5%, and a basis weight of 100 g / m ² . Polyurethane fibers (8% by mass) were double punched to form running tights having tightened portions formed in the same manner as in Example 1. The long-axis elongation of the fabric forming the tightening portion (the fabric after double punching) was 126.0%, the short-axis elongation was 65.9%, and the basis weight was 270 g / m ² . The ratio of the long-axis elongation rate of the fabric forming the tightening portion to the long-axis elongation rate of the fabric forming the other part was 1.1.

Example 4
The main body fabric was used in the same manner as in Example 1. The major axis elongation was 126.4%, the minor axis elongation was 59.8%, and the basis weight was 110 g / m ² tricot warp knitted fabric (nylon fiber 90% by mass, polyurethane fiber) 10% by mass) was used as a running tight with a tightening portion formed in the same manner as in Example 1. The long-axis elongation of the fabric forming the tightening portion (the fabric after double punching) was 109.1%, the short-axis elongation was 53.4%, and the basis weight was 280 g / m ² . The ratio of the long-axis elongation rate of the fabric forming the tightening portion to the long-axis elongation rate of the fabric forming the other part was 1.27.

(Example 5)
The main body fabric was used in the same manner as in Example 1. The major axis elongation was 103.8%, the minor axis elongation was 43.2%, and the basis weight was 130 g / m ² tricot warp knitted fabric (80% by mass of nylon fiber, polyurethane fiber) 20% by mass), and a running tight with a tightening portion formed in the same manner as in Example 1 was obtained. The fabric forming the tightening portion (fabric after double punching) had a long-axis elongation of 82.5%, a short-axis elongation of 40.2%, and a basis weight of 300 g / m ² . In addition, the ratio of the long-axis elongation rate of the fabric forming the tightening portion to the long-axis elongation rate of the fabric forming the other part was 1.68.

(Example 6)
The main body fabric was used in the same manner as in Example 1. The major axis elongation was 92.5%, the minor axis elongation was 38.2%, the basis weight was 140 g / m ² tricot warp knitted fabric (75% by mass of nylon fiber, polyurethane fiber) 25% by mass) was used as a running tight with a tightening portion formed in the same manner as in Example 1. The long-axis elongation of the fabric forming the tightening portion (the fabric after double punching) was 72.9%, the short-axis elongation was 36.1%, and the basis weight was 310 g / m ² . Note that the ratio of the long-axis elongation rate of the fabric forming the tightening portion to the long-axis elongation rate of the fabric forming the other part was 1.9.

(Example 7)
The main body fabric was used in the same manner as in Example 1. The major axis elongation was 81.2%, the minor axis elongation was 36.6%, the basis weight was 165 g / m ² tricot warp knitted fabric (67 mass% nylon fiber, polyurethane fiber) 33% by mass) was used as a running tight with a tightening portion formed in the same manner as in Example 1. The long-axis elongation of the fabric forming the tightening portion (the fabric after double punching) was 65.6%, the short-axis elongation was 33.8%, and the basis weight was 335 g / m ² . The ratio of the long-axis elongation rate of the fabric forming the tightening portion to the long-axis elongation rate of the fabric forming the other part was 2.11.

(Example 8)
The running tights were the same as in Example 1 except that the tightening portions were formed to have substantially the same width of 3 cm.

Example 9
The running tights were the same as in Example 1 except that the tightening portions were formed to have substantially the same width of 7 cm.

(Comparative Example 1)
A running tight was the same as in Example 1 except that the tightening portion was not provided.

  The running tights of the examples and comparative examples were each worn by seven male subjects in their 20s and 30s, and the ease of raising the legs during running was measured as follows, including the case where they were not worn. Is shown in the graph of FIG. 4A. FIG. 4A shows the average of seven subjects.

(Ease of raising the foot)
Measure the amount of muscle activity exerted in 10 seconds of the rectus femoris, that is, the muscle that mainly works to raise the leg, at 7 km / h on a running machine (“Treadmill” manufactured by Nihon Kohden Co., Ltd.). It was used as an indicator of muscle strength.

  As can be seen from the results in FIG. 3A, in all subjects, the running tights of Examples 1 and 2 were worn when the tights of Comparative Example 1 having no tightening portion were worn, and further nothing was worn ( Compared to (not worn), the value of muscular strength was low, and the muscle activity was suppressed. In other words, it can be said that the tightening portion provided in the running tights of the example supports the rectus femoris and makes it easy to raise the leg without performing muscle activity. As can be seen from the comparison between Examples 1 and 2, the muscle activity of Example 1 is further suppressed. The fact that the presence of the first tightening portion 11 is considered to be a direct effect, but the presence of the second tightening portion 12 further suppresses the muscle activity of the extra rectus femoris muscle by suppressing the shake of the knee, In addition, it is considered that the presence of the third tightening portion 13 supports almost the entire vertical distance of the leg, improves the ease of operation control, and promotes further suppression of muscle activity.

  FIG. 3B shows that when one cycle from the contact of the right foot to the next contact of the right foot is 100% in the time series of one subject, Examples 1 and 2 and Comparative Example 1 are worn; The change in the amount of muscle activity is shown in a line graph in time series.

  FIG. 3C is a schematic diagram of a running human body in one cycle from the contact of the right foot to the next contact of the right foot, and the amount of muscle activity in FIG. 3B, from (1) ground contact to the right foot and (2) ground removal from the right foot. , (3) right foot raising operation, (4) right foot kicking operation, and (5) right foot grounding are shown in comparison.

  According to FIG. 3B, it can be seen that the amount of muscle activity in Examples 1 and 2 is particularly low during the above (3) right foot raising operation, and in particular, (2) from right foot takeoff (3) right foot raising operation. In the first half of the hour, it can be seen that muscle activity is greatly suppressed compared to Comparative Example 1 and not worn.

In addition, the running tights of the examples and comparative examples were each worn by seven male subjects in their 20s and 30s,
The knee stability effect by the tightening portion during exercise was measured as follows, and the results are shown in the graphs of FIGS. 4A and 4B show the average of 7 subjects.

(Knee stability)
Using a running motion analysis system (FORM, manufactured by Mizuno Co., Ltd.), the vehicle was run at 7 km / h for 10 seconds, and the knee swaying property was measured, which was used as an index for suppressing knee shaking. Specifically, a marker was attached to the knee, and the amount of shake immediately after the heel contact with the marker was measured.

  As can be seen from the results in FIG. 4A, when the running tights of Examples 1 and 2 are worn, the running tights of Comparative Example 1 that does not have the tightening portion are worn, and moreover, the knees are not worn. The value of swaying property was low and knee shaking was suppressed. That is, it can be said that the tightening portion provided in the running tights of the example supports the stability of the knee and makes it difficult for the knee to shake. As can be seen from the comparison between Example 2 and Comparative Example 1, the shake of the knee in Example 2 is suppressed. Although this does not directly support the knee, the presence of the first tightening portion 12 or 13 suppresses the foot shake in the portion above the knee, and consequently suppresses the shake in the knee portion. It is thought that it is having an effect on.

(Clothing pressure)
Next, the running tights of the example and the comparative example were attached to a mannequin, and the clothing pressure at the knee portion was measured to evaluate the stability of the static knee.

  As can be seen from the results in FIG. 4B, it can be seen that the clothing pressure at the knee portion of Example 1 is about 3 to 4 times higher than the clothing pressure of Comparative Example 1. Furthermore, as can be seen from the comparison between Example 2 and Comparative Example 1, it can be seen that the clothes pressure around the knee is increased by the effect of the first tightening portion 21 even though there is no direct support around the knee. Therefore, the stability of the knee by the tightening portion can also be predicted from the static clothing pressure value.

  The running tights of the examples and comparative examples were each worn by 7 subjects, run for 10 seconds at a speed of 7 km / h, ease of raising the foot by the tightening part during running, and stability of the knee The effects on sex were confirmed by sensory evaluation based on the following five-step criteria, and the results are shown in Table 1 below. Table 2 shows the average of 7 subjects.

<Muscle fatigue difficulty>
1: Fatigue 2: Fatigue 3: Normal 4: Fatigue 5: Fatigue 5

<Ease of raising the thigh>
1: Difficult to raise 2: Difficult to raise 3: Normal 4: Easy to raise 5: Easy to raise

<Knee support>
1: Bad 2: Slightly bad 3: Normal 4: Good 5: Excellent

<Knee stability>
1: Bad 2: Slightly bad 3: Normal 4: Good 5: Excellent

  As can be seen from Table 1, when the running tights of the example were worn, the muscles were not easily fatigued during running, and the ease of raising the thigh by the tightening portion could be felt. Further, from the comparison between Examples 1 and 3 to 7, the ratio of the long-axis elongation rate of the fabric constituting the tightening portion to the long-axis elongation rate of the fabric constituting the other portions excluding the tightening portion is 1.2 to 1. .8, the muscles were less fatigued, the thighs were easier to lift, and the knees were supported and stable. Further, it was found that the above effect is further increased when the ratio of the long axis elongation ratio is 1.4 to 1.6.

Similarly, from comparison between Examples 1 and 3 to 7, it is found that the long axis elongation rate of the fabric constituting the tightening portion is preferably 70 to 110%, and more preferably 80 to 100%. It was found that the higher the ratio of the elongation ratio of the fabric constituting the other parts excluding the tightening part, the better the feeling of knee support.

Furthermore, the running tights of Examples 1, 8, and 9 were each worn by 10 male subjects in their 20s to 40s, run for 10 seconds at a speed of 7 km / h, and were tightened during exercise during running. The ease of feeling the support force and the overall ease of movement were confirmed by sensory evaluation based on the following five-step criteria, and the results are shown in Table 2 below. Table 3 shows the average of 10 subjects.

<Ease of feeling of support>
1: Do not feel 2: Feel somewhat 3: Normal 4: Feel slightly 5: Feel very

<Ease of movement>
1: Difficult to move 2: Slightly difficult to move 3: Normal 4: Slightly mobile 5: Very mobile

  As can be seen from Table 2, when the running tights of the example are worn, it is easy to move if the width of the tightening portion is about 3 cm during running, but it is difficult to feel the support force. However, it is difficult to move and the movement is hindered. Therefore, it can be said that a width of about 5 cm, that is, about 4 to 6 cm, is a suitable width in which support force is felt and movement is not hindered.

10, 20 Exercise clothing 11, 21 First tightening portion 12 Second tightening portion 13 Third tightening portion
14, 24 Main body

Claims (10)

It is an exercise garment worn in close contact with the body,
The exercise garment has a portion covering at least from the waist to the lower calf and is made of stretchable fabric,
The exercise garment has a main body part and a tightening part having a stronger tightening force than the main body part, and the tightening part starts from the front part of the hip joint and passes through the front thigh part, the thigh inner part, the thigh rear part, and the thigh outer part. An exercise garment comprising a first tightening portion disposed back to the front portion of the hip joint.   The location starting from the front portion of the hip joint of the first tightening portion, and the portion disposed back to the front portion of the hip joint via the inner thigh portion, the rear thigh portion, and the outer thigh portion are adjacent to each other, The exercise garment according to claim 1.   The tightening portion is connected to a part of the inner thigh portion of the first tightening portion, and is disposed on the lower side along the inner thigh portion. 3. The exercise garment according to claim 1, further comprising a second tightening portion that is arranged.   The tightening portion is connected to a part of the first tightening portion in the outer thigh portion, and has a third tightening portion connected to a part of the second tightening portion via the knee joint outer portion and the lower part of the anterior knee. The exercise garment according to any one of claims 1 to 3, wherein   The exercise clothing according to any one of claims 1 to 4, wherein the tightening portion has a line shape having a width, and the width is 4 to 6 cm.   The line on the back surface of the thigh in the first tightening portion is disposed at a position distal to the proximal half in the vertical direction of the back surface of the thigh and above the knee joint. Exercise clothing as described in.   The exercise garment according to any one of claims 1 to 6, wherein the first tightening portion, the second tightening portion, and the third tightening portion are connected to each other without any material.   The ratio of the elongation rate in the longitudinal direction of the body of the fabric constituting the tightening portion and the fabric constituting the other portion excluding the tightening portion is 1.1 to 2.2. The exercise clothing according to item 1.   The exercise garment according to any one of claims 1 to 8, wherein an elongation rate in a major axis direction of a body of the fabric constituting the tightening portion is 70 to 110%.   The exercise garment according to claim 1, wherein the first tightening portion, the second tightening portion, and the third tightening portion have substantially the same elongation rate in the major axis direction.

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