Significant relationships exist between muscle group strengths following stroke

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Abstract
The purpose of this study of 26 patients with stroke was to determine whether the forces produced by nine muscle groups were significantly correlated on the paretic and on the nonparetic sides. The hemiparetic patients had a mean age and time since stroke of 67.8 years and 49.9 days respectively. Strength of upper and lower extremity muscle groups was measured with a hand-held dynamometer. Pearson product moment correlations were calculated between the muscle groups of each side. All muscle groups of each side were significantly correlated with one another. The mean correlations of the nonparetic and paretic sides were .781 and .696 respectively. Such correlations suggest that strokes might be considered as having some generalized motor effects. It may therefore be acceptable to test a limited number of muscle groups to gain an indication of the paresis resulting from stroke.