期刊
SCIENTIFIC REPORTS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep44022
关键词
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资金
- National Institutes of Health of the U.S. Department of Health and Human Services [R01NS080839]
- Memorial Hermann Foundation
Spasticity of the biceps brachii muscle was assessed using the modified Ashworth Scale (MAS), Myotonometry and repeated passive stretch techniques, respectively. Fourteen subjects with chronic hemiplegia participated in the study. Spasticity was quantified by muscle displacements and compliance from the Myotonometer measurements and resistive torques from the repeated passive stretch at velocities of 5 degrees/s and 100 degrees/s, respectively. Paired t-tests indicated a significant decrease of muscle displacement and compliance in the spastic muscles as compared to the contralateral side (muscle displacement: spastic: 4.84 +/- 0.33 mm, contralateral: 6.02 +/- 0.49 mm, p = 0.038; compliance: spastic: 1.79 +/- 0.12 mm/N, contralateral: 2.21 +/- 0.18 mm/kg, p = 0.048). In addition, passive stretch tests indicated a significant increase of total torque at the velocity of 100 degrees/s compared with that of 5 degrees/s (T-t5 = 2.82 +/- 0.41 Nm, T-t100 = 6.28 +/- 1.01 Nm, p < 0.001). Correlation analysis revealed significant negative relationships between the stretch test and the Myotonometer measurements (r < - 0.5, p < 0.05). Findings of this study provided validation of the Myotonometry technique and its high sensitivity in examination of spasticity in stroke.
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