Trunk Muscle Activity in Two-Leg Standing to One-Leg Standing in Healthy Elderly Adults

Kai, Satoru; Yoshimoto, Ryuji; Nakahara, Masami; Murakami, Shigeo; Watari, Kazuo; Takahashi, Seiichiro

doi:10.1589/jpts.20.77

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Contrastingly, activation of this section is reflective of active recruitment during active control of the right foot, which was consistently observed in most (78%) participants (Figure 3c). This could be attributed to co-activation of the trunk muscles with the leg and foot muscles to stabilize the body posture related to right foot movement [48]. The lack of muscle activity recordings in our study impeded a clear conclusion.…”

Section: Between-task Differences and Similarities In The Trunk Hand And Face Sectionsmentioning

confidence: 63%

Existence of Interhemispheric Inhibition between Foot Sections of Human Primary Motor Cortices: Evidence from Negative Blood Oxygenation-Level Dependent Signal

et al. 2021

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Interhemispheric inhibition (IHI) between the left and right primary motor cortices (M1) plays an important role when people perform an isolated unilateral limb movement. Moreover, negative blood oxygenation-level dependent signal (deactivation) obtained from the M1 ipsilateral to the limb could be a surrogate IHI marker. Studies have reported deactivation in the hand section of the ipsilateral M1 during simple unilateral hand movement. However, deactivation in the foot section during unilateral foot movement has not been reported. Therefore, IHI between the foot sections of the bilateral M1s has been considered very weak or absent. Thirty-seven healthy adults performed active control of the right foot and also passively received vibration to the tendon of the tibialis anterior muscle of the right foot, which activates the foot section of the contralateral M1, with brain activity being examined through functional magnetic resonance imaging. The vibration and active tasks significantly and non-significantly, respectively, deactivated the foot section of the ipsilateral M1, with a corresponding 86% and 60% of the participants showing decreased activity. Thus, there could be IHI between the foot sections of the bilateral M1s. Further, our findings demonstrate between-task differences and similarities in cross-somatotopic deactivation.

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Section: Between-task Differences and Similarities In The Trunk Hand And Face Sectionsmentioning

confidence: 63%

Existence of Interhemispheric Inhibition between Foot Sections of Human Primary Motor Cortices: Evidence from Negative Blood Oxygenation-Level Dependent Signal

et al. 2021

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show abstract

“…We have continued to examine body performance levels in terms of electromyography (Kai et al, 2008a(Kai et al, , 2008b. Electromyographic waves can shed light on various phenomena through frequency analysis and wavelet transform, among others.…”

Section: Health Science Research Making Use Of Electromyographymentioning

confidence: 99%

“…3.1 Trunk muscle activity while moving from two-leg to one-leg standing in healthy elderly adults (Kai et al, 2008b) Standing balance ability covers static and dynamic balancing. When a subject is moving, such as in walking, dynamic balancing is needed for him to fulfill the needed capacity of balance.…”

Section: To Improve Standing Balancementioning

confidence: 99%