Kinetic measurements of hand motor impairments after mild to moderate stroke using grip control tasks.
Kinetic measurements of hand motor impairments after mild to moderate stroke using grip control tasks.
复制标题
使用握力控制任务对轻度至中度中风后手部运动损伤进行动力学测量
DOI：
10.1186/1743-0003-11-84
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发表时间：
2014-05-11
影响因子：
5.1
通讯作者：
Song R
中科院分区：
文献类型：
--
作者：
Ye Y;Ma L;Yan T;Liu H;Wei X;Song R
BackgroundThe本研究的目的是调查的手运动性能的定量结果测量为轻中度中风后使用抓握控制任务和表征异常屈曲协同中风后上肢after stroke.MethodsA定制的测力计与力传感器被用来测量握力和计算旋转扭矩在次最大抓握控制任务。对11例脑卒中后患者的健侧和非健侧以及10例正常人的优势侧进行了测试。测量他们的最大自愿握力，并用于设置次最大握力控制任务在三个不同的目标力水平。力控制能力的特征是最大握力，平均力百分比，变异系数（CV），目标偏差比（TDR），和旋转扭矩比（RTR）。采用Fugl-Meyer上肢功能评定法（FMA-UE）和Wolf运动功能测试（WMFT）对脑卒中后患者的运动功能进行评估。结果与健侧和非健侧相比，患侧最大握力明显降低，而健侧和非健侧最大握力差异无统计学意义。三组的TDR和RTR均随目标力水平的增加而增加。在各个力水平下，瘫痪侧与健侧的CV、TDR和RTR差异均有统计学意义。CV，TDR和RTR表现出显着的负相关与FMA-UE和WMFT在50%的最大griplefor.ConclusionsThis研究设计了一个定制的测力计连同一个创新的测量，RTR，调查轻中度中风后的受试者在力控制任务的手电机性能。RTR可以表征脑卒中后腕、指肌肉的异常屈曲协同作用。本研究还确定了一组动力学参数，可用于定量评估轻中度卒中后受试者的手运动功能。
BackgroundThe aim of this study is to investigate quantitative outcome measurements of hand motor performance for subjects after mild to moderate stroke using grip control tasks and characterize abnormal flexion synergy of upper extremities after stroke.MethodsA customized dynamometer with force sensors was used to measure grip force and calculate rotation torque during the sub-maximal grip control tasks. The paretic and nonpartic sides of eleven subjects after stroke and the dominant sides of ten healthy persons were tested. Their maximal voluntary grip force was measured and used to set sub-maximal grip control tasks at three different target force levels. Force control ability was characterized by the maximal grip force, mean force percentage, coefficient of variation (CV), target deviation ratio (TDR), and rotation torque ratio (RTR). The motor impairments of subjects after stroke were also evaluated using the Fugl-Meyer assessment for upper extremity (FMA-UE) and Wolf Motor Function Test (WMFT).ResultsMaximal grip force of the paretic side was significantly reduced as compared to the nonparetic side and the healthy group, while the difference of maximal grip force between the nonparetic side and the healthy group was not significant. TDR and RTR increased for all three groups with increasing target force level. There were significant differences of CV, TDR and RTR between the paretic side and the healthy group at all the force levels. CV, TDR and RTR showed significant negative correlations with FMA-UE and WMFT at 50% of maximum grip force.ConclusionsThis study designed a customized dynamometer together with an innovative measurement, RTR, to investigate the hand motor performance of subjects after mild to moderate stroke during force control tasks. And stroke-induced abnormal flexion synergy of wrist and finger muscles could be characterized by RTR. This study also identified a set of kinetic parameters which can be applied to quantitatively assess the hand motor function of subjects after mild to moderate stroke.
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影响因子：
2.1
作者：
Hermsdörfer, J;Hagl, E;Nowak, DA
通讯作者：
Nowak, DA
影响因子：
3.5
作者：
Jonkman, EJ;de Weerd, AW;Vrijens, NLH
通讯作者：
Vrijens, NLH
DOI：
10.1016/j.apmr.2005.11.018
发表时间：
2006-03-01
影响因子：
4.3
作者：
Blennerhassett, JM;Carey, LM;Matyas, TA
通讯作者：
Matyas, TA
影响因子：
3.4
作者：
Kamper, DG;Rymer, WZ
通讯作者：
Rymer, WZ
DOI：
10.1682/jrrd.2005.06.0103
发表时间：
2006-08-01
影响因子：
--
作者：
Hogan, Neville;Krebs, Hermano I.;Volpe, Bruce T.
通讯作者：
Volpe, Bruce T.