Precision in isometric precision grip force is reduced in middle-aged adults

被引：0

作者：

Påvel Lindberg

Chrystele Ody

Antoine Feydy

Marc A. Maier

机构：

[1] Inserm,Service de Radiologie B, APHP, CHU Cochin, Faculté de Médecine

[2] UMR_S 742,undefined

[3] ANiM,undefined

[4] UPMC Univ Paris 06,undefined

[5] UMR_S 742,undefined

[6] ANiM,undefined

[7] Université Paris Diderot Paris-7,undefined

[8] UMR_S 742,undefined

[9] ANiM,undefined

[10] Université Paris Descartes,undefined

来源：

Experimental Brain Research | 2009年 / 193卷

关键词：

Motor control; Ageing; Precision grip; Grip force;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We investigated age related changes in the control of precision grip in 29 healthy adults spanning early adulthood to middle age (21–67 years). Subjects performed a visually guided, isometric precision grip ramp-and-hold force-tracking task. Target force levels were 3, 6, and 9 N. Precision and performance of force regulation was quantified. Larger errors were made during the ramp than during the hold phase. Age correlated positively with the amount of error at the lowest (3 N) force level in both phases. Force onsets were systematically earlier in middle-aged subjects and the average slope of the force during the ramp decreased with increasing age. The results show that precision during low grip force control decreases already during middle age and those subjects may modify their force generation strategies to compensate for early and subtle degenerative changes in the motor system before decline in grip strength is apparent.

引用

页码：213 / 224

页数：11

共 129 条

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