[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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The purpose of this study was to investigate the characteristics of center of mass deflection and joint moment in elderly individuals with instability on landing during backward stepping. The study included 19 elderly individuals, and they were divided into a single-step group or a multi-step group. Using a motion capture system and force plates, we measured the center of mass deflection and the moment of the lower leg joint on landing during backward stepping and compared the values between the single-step and multi-step groups. In the multi-step group, the ankle plantar flexion moment and the ankle eversion moment were lower, and the center of mass deflection in the lateral direction was higher compared to those in the single-step group. This study found that in the multi-step group, the ability to control the center of mass deflection in the lateral direction decreased and maintaining an appropriate ankle plantar flexion moment was difficult during backward stepping.

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