The Activities of the Muscles around the Ankle Joint during Foot-gripping are          Affected by the Angle of the Ankle

Soma, Masayuki; Murata, Satoshi; Kai, Yoshihiro; Nakae, Hideyuki; Satou, Yosuke

doi:10.1589/jpts.25.1625

Cited by 12 publications

(13 citation statements)

References 6 publications

(8 reference statements)

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“…Many studies have reported that a low toe-gripping strength is a risk factor for falls in the elderly 1 , 2 , 3 , 4 , 5 ) . However, there are few reports on the mechanism of foot-gripping strength 6 , 7 , 8 ) , and kinematics of the ankle joint remain unclear.…”

Section: Introductionmentioning

confidence: 99%

“…Some reports have stated that the mechanism of foot-gripping strength is related to the activities of the crural muscles, and that the ankle position contributes to producing maximum toe-gripping strength 6 , 7 , 8 ) . Souma et al 6 , 7 ) studied the percentage of integrated electromyogram (%IEMG) of the crural muscles (i.e., the soleus, medial head of the gastrocnemius, and tibialis anterior muscles) and femoral muscles (i.e.,the rectus femoris and biceps femoris muscles) during toe gripping. They reported that the crural muscles help the ankle joint by co-contracting during toe gripping, and the %IEMG of the biceps femoris muscle was significantly higher than that of the rectus femoris muscle.…”

Section: Introductionmentioning

confidence: 99%

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Kinematic analysis during toe-gripping strength exertion: angular changes in the ankle joint and leg muscle activities

et al. 2015

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[Purposes] To investigate angular changes in the ankle joint and leg muscle activities during toe-gripping, and to examine the relationship between these changes and toe-gripping strength. [Subjects] Eleven healthy young women were selected. [Methods] We measured the toe-gripping strength, angular changes in the ankle joint, and leg muscle activities of all patients during toe-gripping. [Results] The mean change in the ankle angle in dorsiflexion from a neutral position was 3°, and a positive correlation was observed between this angle and toe-gripping strength (r = 0.61). Thus, toe-gripping strength increased with the angle of dorsiflexion. Regarding the leg muscle activities, activities of the tibialis anterior muscle and medial head of the gastrocnemius muscle demonstrated positive correlations with toe-gripping strength (r = 0.75 and r = 0.72, respectively). [Conclusion] These findings suggest that the ankle dorsiflexes in order to exert great toe-gripping strength, and the crural muscles contract simultaneously because of ankle fixation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Kinematic analysis during toe-gripping strength exertion: angular changes in the ankle joint and leg muscle activities

et al. 2015

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“…As described by Murata6 ) , Uritani7 ) and Souma8,9,10,11 ) , the toe grip strength of the dominant foot, angular changes in the ankle joint during toe grip, maximum voluntary contraction (MVC) activities of the rectus femoris, biceps femoris, tibialis anterior, and medial head of the gastrocnemius muscles, toe curl ability, foot-arch height ratio, and weight were measured. Electrogoniometer and EMG activities were synchronously recorded during toe grip.…”

Section: Methodsmentioning

confidence: 99%

“…The subjects were instructed to sit with their trunk in a vertical position, to place their hip and knee joints at 90°, and to keep their ankle joints in the neutral position7,8,9,10 ) . The handle of the force meter was set on the first metatarsophalangeal joint.…”

Section: Methodsmentioning

confidence: 99%

“…Moreover, Uritani et al7 ) reported that toe grip strength is affected by four factor: age, gender, height, and weight. Recently, Souma et al8, 9 ) measured toe grip strength using surface electromyography (EMG) . They reported that the crural muscles help the ankle joint by co-contracting during toe grip, and that the activity of the tibialis anterior muscle plays a specific and important role.…”

Section: Introductionmentioning

confidence: 99%

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Examinations of factors influencing toe grip strength

et al. 2016

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[Purpose] This study examined the relationship between toe grip strength and its associated factors by focusing on factors that were suggested to have a relationship with toe grip strength in previous studies, aiming to clarify the factors influencing the toe grip strength of healthy women. [Subjects and Methods] Twelve healthy young women were selected for this study. Their toe grip strength, angular changes in their ankle joint during toe grip, maximum voluntary contraction activities of the rectus femoris, biceps femoris, and tibialis anterior muscles, and the medial head of the gastrocnemius muscles were measured using electromyography. Their toe curl ability, foot-arch height ratio, and weight were also measured. [Results] Multiple regression analysis demonstrated that the predictors of toe grip strength in the resulting model were foot-arch height ratio and the percentage of integrated electromyography (%IEMG) of the tibialis anterior muscle, as the dependent variables. This reveals that women whose tibialis anterior muscle %IEMG values and foot-arch height ratio are high have greater %IEMG values have greater toe grip strength. [Conclusion] These findings suggest a significant relationship between foot-arch height ratio and toe grip strength, with a reciprocal interaction. These findings further indicate that the risk of falls by the elderly could be decreased if toe grip strength were enhanced, by increasing the height of a low foot-arch with the help of an inserted insole.

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The effect of wearing insoles with a toe-grip bar on occupational leg swelling and lower limb muscle activity: A randomized cross-over study

Nakano

Murata

Kai

et al. 2020

Journal of Occupational Health

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Objective Sitting or standing for hours decreases the blood flow in the legs and results in increased pressure on the veins, leading to the development of chronic venous disease. This study aimed to investigate the effects of insoles with a toe‐grip bar on occupational leg swelling and lower limb muscle activity. Methods This randomized cross‐over study enrolled 12 healthy men who work in a sitting or standing position. They were randomly divided into groups A (wore shoes with insoles with a toe‐grip bar for 8 hours each) and B (wore shoes with regular insoles for 8 hours each). After 1 week, groups A and B wore shoes with regular insoles and shoes with insoles with a toe‐grip bar, respectively, for 8 hours each. Lower leg volume was measured before and after each intervention, and lower limb muscle activity was measured at the start of each intervention. Results Occupational leg swelling was significantly smaller in men wearing insoles with a toe‐grip bar ( P < .05). Moreover, the integrated electromyogram value of the tibialis anterior muscle and medial and lateral gastrocnemius muscles during the stance phase of walking, and tibialis anterior muscle during the swing phase of walking was significantly greater in men wearing insoles with a toe‐grip bar (all P < .05). Conclusion Insoles with a toe‐grip bar contribute to increased lower limb muscle activity, attenuating occupational leg swelling.

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The Activities of the Muscles around the Ankle Joint during Foot-gripping are Affected by the Angle of the Ankle

Cited by 12 publications

References 6 publications

Kinematic analysis during toe-gripping strength exertion: angular changes in the ankle joint and leg muscle activities

Kinematic analysis during toe-gripping strength exertion: angular changes in the ankle joint and leg muscle activities

Examinations of factors influencing toe grip strength

The effect of wearing insoles with a toe-grip bar on occupational leg swelling and lower limb muscle activity: A randomized cross-over study

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