Browsing by Author "Bowen, Robyn"
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- ItemComparing male and female 10km runners with regards to both performance and training(Stellenbosch : Stellenbosch University, 2003-12) Bowen, Robyn; Myburgh, Kathryn H.; Stellenbosch University. Faculty of Education. Dept. of Sport Science.ENGLISH ABSTRACT: The objective of this study was to compare training and physiological variables in performance-matched 10 km female and male athletes in order to identify those factors allowing females to compensate for their lower haematocrit and higher % body fat, both of which are disadvantageous to performance. Eight well-trained competitive female runners and eight well-trained competitive male runners participated in the study. They were matched by performance in a controlled 10 km time trial in the field (TT10). Training was monitored in each athlete for seven consecutive days using heart rate monitoring and training diaries. Each athlete gave a muscle biopsy for histological and biochemical analysis. Four maximal tests, two flat and two gradient (8%), were completed by each athlete in order to determine V02max, maximum heart rate and peak treadmill speed (PTS) under each condition. Each athlete also completed two submaximal tests (one flat and one gradient) and a ten minute race pace test, in which the pace was determined by their TT10 performance. These allowed fractional utilization of V02max, HRmax and PTS to be determined, as well as economy. Training data revealed a much greater training volume, both distance run and duration of training, in female athletes (p < 0.05 for distance; p < 0.01 for duration). V02max expressed per kg body mass was significantly higher in males (p < 0.05), however, when expressed per FFM, no difference was found between genders. Female athletes had a significantly greater percent composition of type I fibres and males had significantly more type IIX fibres, possible explanation of gender difference in PTS and contributing factor to equal TT10. The relationships between training, performance and biochemical variables in either gender were very different.