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[Longitudinal analysis of change in sports performance of women between ages 30 and 75: a comparison between peak and leisure sports participation].

The paper considers motor development in women aged 30 to 75 years. The present research examines performance changes in several track and field disciplines comparing senior master athletes and competitors on a mass sport level. The change itself and its acceleration is expressed by the linear and the coefficients of quadratic polynomials fitted to the original and the z-transformed data. Correlation-, regression- and cluster analysis as well as Manova were conducted with the coefficients and the original data from 585 and 224 repeated measurement series. Significant differences were found for the original data and the change parameters: 1) Between the two groups considered longitudinally and cross-sectionally, 2) within both groups concerning several disciplines and age groups considered longitudinally and cross-sectionally. Further research will be conducted with additional methods to support the present findings. The most important issue will be to investigate the interaction between the observed pattern and external variables concerning training effort, lifestyle, state of health, life events and personality traits gathered from the group at the mass sport level.