Aging reduces manual dexterity and force production asymmetries between the hands

被引：2

作者：

Pan, Zhujun ^{[1
,5
]}

Fang, Qun ^{[1
,2
]}

Watson, Deborah M. ^{[1
]}

Van Gemmert, Arend W. A. ^{[3
]}

Aiken, Christopher A. ^{[4
]}

机构：

[1] Mississippi State Univ, Dept Kinesiol, Starkville, MS USA

[2] Qingdao Univ, Qingdao, Peoples R China

[3] Louisiana State Univ, Baton Rouge, LA USA

[4] New Mexico State Univ, Las Cruces, NM USA

[5] Mississippi State Univ, Starkville, MS 39762 USA

来源：

LATERALITY | 2023年 / 28卷 / 4-6期

关键词：

Aging; motor asymmetry; force production; manual dexterity; motor control; GRIP STRENGTH; OLDER-ADULTS; MOTOR ASYMMETRY; AGE; BRAIN;

D O I：

10.1080/1357650X.2023.2226890

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

Age-related effects on motor asymmetry provide insight into changes in cortical activation during aging. To investigate potential changes in manual performance associated with aging, we conducted the Jamar hand function test and the Purdue Pegboard test on young and older adults. All tests indicated reduced motor asymmetry in the older group. Further analysis suggested that a significant decline in dominant (right) hand function resulted in less asymmetric performance in older adults. The finding is inconsistent with the application of the HAROLD model in the motor domain, which assumes improved performance in the non-dominant hand, leading to a reduction of motor asymmetry in older adults. Based on the manual performance in young and older adults, it is suggested that aging reduces manual asymmetry in both force production and manual dexterity due to the reduced performance of the dominant hand.

引用

页码：239 / 253

页数：15

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