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.

本研究的目的是调查年龄对锤击任务中响应时间和准确性的影响。51-69 岁的老年男性工人（老年组：OG，n = 23）和 25-36 岁的年轻男性参考个体（年轻组：YG，n = 16）进行了实验。响应时间、准确性和 3D 肩部/手臂运动学是使用运动捕捉获得的。使用线性混合模型分析研究年龄的影响。与 YG 相比，OG 的响应时间显着更长（P  < 0.001），但未观察到准确性的显着差异（P = 0.729）。OG 显示出较少的锤子位移和较小的肩部运动范围。尽管年长的工人似乎使用对生物力学要求较低的运动策略，但他们在锤击时的反应时间大约是年轻人的两倍。