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KMID : 1142420220200010125
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PNF and Movement
2022 Volume.20 No. 1 p.125 ~ p.134
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Association between Hand Grip Strength and Gait Variability in Elderly: Pilot Study
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Lee Do-Youn
Lee Yun-Gon
Shin Sung-Hoon
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Abstract
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Purpose: The aim of this study was to establish an association between grip strength and gait variability in the elderly.
Methods: The participants in this experiment (n = 20) were aged 65 or older. Power grip and lateral pinch forces wereobtained in grip strength tests, and spatiotemporal gait parameters were collected from IMU sensors during 6 min actualwalking to test the gait of participants. The collected gait parameters were converted to coefficient of variation (CV)values. To confirm the association between grip strength and gait variability, a partial correlation analysis was conductedin which height, weight, and gait speed were input as controlling variables.
Results: Grip power showed a significant negative correlation with the stride length CV (r = -0.52), and the lateralpinch force showed a significant negative correlation with the stance CV (r = -0.65) and swing CV (r = -0.63).
Conclusion: This study reveals that gait variability decreases as grip strength increases, although height, weight, andgait speed were controlled. Thus, grip strength testing, a simple aging evaluation method, can help identify unstablegait in older adults at risk of falling, and grip strength can be utilized as a non-invasive measurement method for frailtymanagement and prevention.
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KEYWORD
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Hand grip strength, Gait variability, Elderly
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