Do associated reactions in the upper limb after stroke contribute to contracture formation?

被引:20
作者
Ada, L [1 ]
O'Dwyer, N [1 ]
机构
[1] Univ Sydney, Fac Hlth Sci, Sch Physiotherpy, Lidcome, NSW 1825, Australia
关键词
D O I
10.1191/026921501676635731
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Objective: To establish (1) whether associated reactions could contribute to contracture formation and (2) whether the presence of spasticity was essential for their expression, after stroke. Subjects: Subjects were 24 hemiparetics within 13 months of a stroke, unselected for contracture or spasticity. Main outcome measures: Associated reactions were identified by the presence of muscle activity in the affected biceps brachii and quantified as the amount of affected elbow flexor torque produced during a moderate contraction of either the contralateral biceps brachii or the contralateral quadriceps muscles. Contracture was measured as loss of elbow joint range of motion and spasticity as the presence of abnormal reflex activity. Results: Associated reactions were present in at least one resting condition in seven subjects. During contractions of the contralateral biceps brachii, the median amount of elbow flexor torque produced was 0.39 (interquartile range, IQR 2.5) Nm while during contractions of the contralateral quadriceps muscle it was 0.19 [IQR 1.6) Nm. Associated reactions were not associated with contracture (p = 0.39) which was present in over half of the subjects. The incidence of associated reactions was about the same as that of spasticity, but the two were not related (p = 0.61). Conclusions: Even though associated reactions were present in 29% of the subjects during moderate contraction of the contralateral muscles, they were not targe, nor were they associated with contracture or spasticity, suggesting that this phenomenon is not usually a major problem for everyday function after stroke.
引用
收藏
页码:186 / 194
页数:9
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