Vasylenko Olena, Gorecka Marta M, Rodríguez-Aranda Claudia
Department of Psychology, University of Tromsø, Tromsø, Norway.
Department of Neurology, University Hospital of Northern Norway, Tromsø, Norway.
Dev Psychobiol. 2018 May;60(4):407-427. doi: 10.1002/dev.21619. Epub 2018 Mar 12.
This study aimed to better characterize age-related differences in dexterity by using an integrative approach where movement times and kinematics were measured for both hands. Forty-five young (age 19-31) and 55 healthy older adults (age 60-88) were evaluated during unimanual and bimanual performance of the Purdue Pegboard Test. Gender effects were also assessed. From video-recorded data, movement times and kinematics were obtained for reaching, grasping, transport, and inserting. Results showed that older adults had longer movement times for grasping and inserting with the right hand, and across all movements with the left hand. Kinematic differences were found in path length, linear, and angular velocity. The patterns of slowing were similar in unimanual and bimanual tasks. Gender effects showed more slowing in older males than older females. Age differences in dexterity not only comprise slowing of movements but also kinematic alterations. The importance of gender in hand function was demonstrated.
本研究旨在采用一种综合方法,通过测量双手的运动时间和运动学特征,更好地表征与年龄相关的灵活性差异。在普渡钉板测试的单手和双手操作过程中,对45名年轻人(年龄19 - 31岁)和55名健康老年人(年龄60 - 88岁)进行了评估。还评估了性别效应。从视频记录的数据中,获取了伸手、抓握、运输和插入动作的运动时间和运动学特征。结果表明,老年人右手抓握和插入动作的运动时间较长,左手所有动作的运动时间也较长。在路径长度、线速度和角速度方面发现了运动学差异。在单手和双手任务中,动作减慢的模式相似。性别效应表明,老年男性比老年女性动作减慢更明显。灵活性方面的年龄差异不仅包括动作减慢,还包括运动学改变。研究证明了性别在手部功能中的重要性。