✦ LIBER ✦

The control of oscillatory movements of the forearm

✍ Scribed by G. K. Wallace

Publisher: Springer-Verlag
Year: 1989
Tongue: English
Weight: 807 KB
Volume: 61
Category: Article
ISSN: 0340-1200
DOI: 10.1007/bf00198770

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✦ Synopsis

The patterns of EMG activity in the biceps and triceps muscles were recorded during horizontal oscillatory movements of the forearm. Subjects showed increased frequency of oscillation as they voluntarily reduced movement amplitude. EMG burst duration was significantly correlated with wavelength of oscillation in every case. In almost half the cases burst intensity was also positively correlated with wavelength. Subjects seemed to be using one or both these methods to control amplitude. A model was developed in three stages which satisfactorily accounted for the data.

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