Joint Tightening in Hemiplegic Handwriting
Joint Tightening in Hemiplegic Handwriting
复制标题
偏瘫手写关节收紧
DOI：
10.11596/asiajot.16.71
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Nakano Hisako
中科院分区：
文献类型：
--
作者：
Fujisawa Yuhki;Okajima Yasutomo;Hashidate Hiroyuki;Nakano Hisako
目的：手写，其中包括多个关节的运动在上肢，是一个合适的模型来研究偏瘫中风后的运动控制。我们分析了笔尖运动在手写过程中的手指和手腕，揭示收紧和关节联动，控制书写动作所做的偏瘫hand.Methods：13个右撇子个人与右侧轻度偏瘫中风后，14个年龄匹配，右手对照。使用三维运动分析仪记录笔尖、手指和手腕的运动。我们通过测量书写时间、笔尖运动学和轨迹的变化来研究他们的书写性能。在写作过程中的关节的运动联动进行了量化，通过计算在手指或手腕的轨迹大小的比率，在pen tip.Results：书写所需的时间和运动变异性并没有不同的偏瘫和对照组。在偏瘫患者的书写中，笔尖与手指和腕关节运动的紧密联系被发现，这与对照组中的非优势手使用相似。偏瘫书写的联动参数与书写时间和笔尖运动的运动变异性显著相关。具有优势手偏瘫的个体，为了产生一致清晰的书写，可能会收紧手指和手腕的关节连接以减少控制书写的运动自由度，同时降低他们的书写速度，潜在地导致笔尖运动的运动学可变性增加。
Objective: Handwriting, which consists of multiple joint movements in the upper extremity, is a suitable model to investigate motor control after hemiplegic stroke. We analyzed pen tip movement during handwriting in relation to the finger and wrist to reveal tightening and joint linkage that control writing movements done by a hemiplegic hand.Methods: Thirteen right-handed individuals with right-sided mild hemiplegia after a stroke and 14 age-matched, right-handed controls were included. Movements of the pen tip, finger, and wrist were recorded using a three-dimensional movement analyzer. We investigated their writing performance by measuring writing time, variabilities of pen tip kinematics and trajectory. Movement linkage of the joints during writing was quantified by calculating the ratio of the trajectory size at the finger or wrist to that at the pen tip.Results: The time needed for writing and the kinematic variability did not differ between the hemiplegic and control groups. The tight linkage of the pen tip with the finger and wrist joint movement was found in hemiplegic handwriting, which was similar to nondominant hand use in the controls. The linkage parameter of hemiplegic handwriting significantly correlated with writing time and kinematic variability of the pen tip movement.Conclusion: Individuals with dominant-hand hemiplegia, in an attempt to produce consistently legible writing, may tighten the joint linkage of the finger and wrist to reduce the freedom of motion to control writing and simultaneously slow their writing speed, potentially resulting in increased kinematic variability of the pen tip movement.
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图形学、自动化和笔迹评估。
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
O. Tucha;Lara Tucha;K. Lange
通讯作者：
K. Lange
评估时间在控制笔迹中的特殊作用。
影响因子：
1.8
作者：
Charles E. Wright
通讯作者：
Charles E. Wright
DOI：
--
发表时间：
--
期刊：
影响因子：
--
作者：
F. Freeman
通讯作者：
F. Freeman
影响因子：
3.2
作者：
Fujisawa, Yuhki;Okajima, Yasutomo
通讯作者：
Okajima, Yasutomo
DOI：
10.1682/jrrd.2009.09.0155
发表时间：
2010-01-01
影响因子：
--
作者：
Lin, Keh-Chung;Chuang, Li-ling;Chang, Wan-ying
通讯作者：
Chang, Wan-ying