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Notes and Comments

A Note on Stability in Force Applied to Control a Repetitive Task With the Legs

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Pages 313-319 | Received 15 Mar 1982, Published online: 13 Aug 2013
 

Abstract

The forces applied to pedals during cycling were collected every 40 ms from approximately 29,000 movement repetitions. Intra-cycle mean values of force and its variability were significantly correlated, supporting Schmidt–s impulse variability theory of within-movement activities of the legs. In addition, as mean forces approached peak values, coefficients of variation decreased. From averages taken minute by minute, intra-cycle forces were seen to rise or fall in concert, implying that the pattern as a whole constituted a significant neuromuscular unit of control.

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