4.5 Article

The effects of age on response time, accuracy, and shoulder/arm kinematics during hammering

期刊

APPLIED ERGONOMICS
卷 90, 期 -, 页码 -

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ELSEVIER SCI LTD
DOI: 10.1016/j.apergo.2020.103157

关键词

Age; Motor control; Hammering

资金

  1. Danish Working Environment Research Fund [20140072843]

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The study found that older workers have significantly longer response times during hammering tasks compared to younger individuals, but no significant differences in accuracy, and they also exhibit less hammer displacement and smaller range of motion in the shoulder.
The aim of this study was to investigate the effects of age on response time and accuracy during a hammering task. Older male workers aged 51-69 years (older group: OG, n = 23) and younger male reference individuals aged 25-36 years (younger group: YG, n = 16) performed the experiment. Response time, accuracy, and 3D shoulder/arm kinematics were acquired using motion capture. The effects of age were investigated using linear mixed model analysis. Response times were significantly longer for OG compared with YG (P < 0.001) while no marked differences in the accuracy was observed (P = 0.729). OG showed less hammer displacement and smaller range of motion in the shoulder. Although older workers seemed to use a less biomechanical demanding motor strategy, their response times during hammering were about twice that of younger individuals.

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