課題の達成要求度がテニスのフォアボレー動作に及ぼす影響

概要

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In the present study, it aimed to examine the influence of psychological pressure exerted on operation and the muscle activity during forehand volley in tennis. The subject assumed six regulation tennis experienced people (average age 21 years old, 7.6±1.6 tennis experience years). An experiment task was to hit a ball thrown from tennis-machine to decided target area (2x2m) with forehand volley. An experiment was planned 4trials as 1set, and 2kinds of condition was established. (1)Low demand condition (LD Condition,1-3trials in each set);point is added if subject succeeded volley, and point is not added if failed,(2)High demand condition(HD Condition,4th trial in each set);point is added if succeeded, but it becomes a scoreless if failed in this task. As a result, in HD condition, tension level and the state-anxiety score were higher than LD condition, although there was no significant difference in HR between HD and LD conditions. And, it is suggested that shortening in the takeback period was seen under the HD condition, Some of the subjects with high tension in HD condition, muscle activities patterns of Dertoid and muscle in forearm were conspicuously different from those in LD condition. It is suggested that psychological pressure affect motor program which decide muscle activity, than the transformation of operation is caused.
2010-03-31