Influence of aging and visual feedback on the stability of hand grip control in elderly adults

Chueh Ho Lin, Wen Hsu Sung, Shang Lin Chiang, Shu-Chun Lee, Liang Hsuan Lu, Pin Chun Wang, Xin Miao Wang

研究成果: 雜誌貢獻文章

2 引文 (Scopus)

摘要

Aging causes a gradual decrease in maximal grip strength and leads many elderly people to have to rely on visual feedback to compensate for poorer muscle strength in performing daily activities and preventing accidents. Previous studies have investigated age and visual feedback-related changes in grip strength. However, little is known about methods of determining the quality and stability of hand grip strength control in the elderly, which is important for understanding their ability to generate grip force when handling objects with and without visual feedback in daily living. Therefore, the purpose of this study was to investigate the influence of aging and visual feedback on the stability of hand grip control in both hands in elderly adults. Forty-four healthy elderly persons (age 80.5 ± 4.53 years) and 36 young adults (age 32.69 ± 16.48 years) were recruited to execute grip force stability tasks using both hands at a 2 kg target force level. To perform the grip force stability task, the participants were asked to hold the dynamometer tightly in an attempt to achieve the target force level under visual and non-visual feedback conditions. Strength performances (grip force and coefficient of variation values) and stability of strength control (deviation error, variation error and force stability index values) for hand grip force stability tasks were calculated and analyzed. Compared with the visual feedback condition, the stability of grip force control in the hands of the young and elderly groups were significantly reduced in the non-visual feedback condition by 23.5%–57.1% (p <.05). The elderly group also showed significantly worse hand grip strength performances and stability of hand strength control than the young adult group (p <.05). Aging and non-visual feedback reduced the hand grip force output and stability of grip strength control of the hands. This may reveal the difficulty with manipulating hand-held objects in the absence of visual feedback while performing activities of daily living among the elderly.

原文英語
頁(從 - 到)74-81
頁數8
期刊Experimental Gerontology
119
DOIs
出版狀態已發佈 - 五月 1 2019

指紋

Sensory Feedback
Hand Strength
Hand
Aging of materials
Feedback
Advisory Committees
Dynamometers
Force control
Young Adult
Muscle
Accidents
Aptitude
Muscle Strength

ASJC Scopus subject areas

  • Biochemistry
  • Ageing
  • Molecular Biology
  • Genetics
  • Endocrinology
  • Cell Biology

引用此文

Influence of aging and visual feedback on the stability of hand grip control in elderly adults. / Lin, Chueh Ho; Sung, Wen Hsu; Chiang, Shang Lin; Lee, Shu-Chun; Lu, Liang Hsuan; Wang, Pin Chun; Wang, Xin Miao.

於: Experimental Gerontology, 卷 119, 01.05.2019, p. 74-81.

研究成果: 雜誌貢獻文章

Lin, Chueh Ho ; Sung, Wen Hsu ; Chiang, Shang Lin ; Lee, Shu-Chun ; Lu, Liang Hsuan ; Wang, Pin Chun ; Wang, Xin Miao. / Influence of aging and visual feedback on the stability of hand grip control in elderly adults. 於: Experimental Gerontology. 2019 ; 卷 119. 頁 74-81.
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abstract = "Aging causes a gradual decrease in maximal grip strength and leads many elderly people to have to rely on visual feedback to compensate for poorer muscle strength in performing daily activities and preventing accidents. Previous studies have investigated age and visual feedback-related changes in grip strength. However, little is known about methods of determining the quality and stability of hand grip strength control in the elderly, which is important for understanding their ability to generate grip force when handling objects with and without visual feedback in daily living. Therefore, the purpose of this study was to investigate the influence of aging and visual feedback on the stability of hand grip control in both hands in elderly adults. Forty-four healthy elderly persons (age 80.5 ± 4.53 years) and 36 young adults (age 32.69 ± 16.48 years) were recruited to execute grip force stability tasks using both hands at a 2 kg target force level. To perform the grip force stability task, the participants were asked to hold the dynamometer tightly in an attempt to achieve the target force level under visual and non-visual feedback conditions. Strength performances (grip force and coefficient of variation values) and stability of strength control (deviation error, variation error and force stability index values) for hand grip force stability tasks were calculated and analyzed. Compared with the visual feedback condition, the stability of grip force control in the hands of the young and elderly groups were significantly reduced in the non-visual feedback condition by 23.5{\%}–57.1{\%} (p <.05). The elderly group also showed significantly worse hand grip strength performances and stability of hand strength control than the young adult group (p <.05). Aging and non-visual feedback reduced the hand grip force output and stability of grip strength control of the hands. This may reveal the difficulty with manipulating hand-held objects in the absence of visual feedback while performing activities of daily living among the elderly.",
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AU - Lu, Liang Hsuan

AU - Wang, Pin Chun

AU - Wang, Xin Miao

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