跳躍運動習熟過程における競技力特性の評価

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Athletic performance is influenced by many factors such as physical, mental and weather conditions. The degree to which the athletic performance is affected by these factors varies among athletes, so that the alteration of performance record includes a variety of information. We attempted to evaluate the characteristics of athletic performance (CAP)in reference with stability of performance in 8 items of jumping on athletes who were in a developing period of motor ability. Subjects were 39 male athletes who did not have great deal of experience of jump training. A total of 3519 records were collected from January 1987 to November 1989. Means and S.D.s of records, obtained in a given short period (i.e., 4 records) for each athlete, were utilized to estimate achievement probability with the exclusion of record improvement. Achievement probabilities of given sample records were defined as (1.0-cumulative normal probability) . Logistic function, P= 1.0/ [1.0 + exp {-a(θ- R_s)}] , was applied to them as a probability curve in each sample record and athlete,where P is achievement probability, θ is mean of records obtained in the short period, and R_s is reference record. Parameter a was determined as the slope of logistic curve, and was defined as CAP. Goodness of fit in applying logistic function was satisfactory, because values of standard error were only 0.0603 at median and 0.0836 at 75 percentile. Differences of CAP among athletes were significant in each event. Four factors were extracted using factor analysis, and they were interpreted as jumping record factor, jumping CAP factor, backward shot put with both hands, and five-step jump with both legs. Thus, we suggest that CAP is independent of record, and the athletes who are in developing eriod of motor ability could be evaluated using two scales of record and CAP.
社団法人日本体育学会の論文
1994-03-01

跳躍運動習熟過程における競技力特性の評価

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