Contributions of training and non-training physical activity to physical activity level in female athletes

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  • Yoshida Asumi
    Graduate School of Sport Sciences, Waseda University Department of Nutritional Education, National Institute of Health and Nutrition
  • Ishikawa-Takata Kazuko
    Department of Nutritional Education, National Institute of Health and Nutrition
  • Taguchi Motoko
    Faculty of Sport Sciences, Waseda University
  • Nakae Satoshi
    Department of Nutritional Science, National Institute of Health and Nutrition
  • Tanaka Shigeho
    Faculty of Sport Sciences, Waseda University Department of Nutritional Science, National Institute of Health and Nutrition
  • Higuchi Mitsuru
    Faculty of Sport Sciences, Waseda University

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We compared the physical activity level (PAL) and training and non-training physical activity (PA) between rhythmic gymnasts and lacrosse players. In addition, we aimed to clarify the contribution of training and non-training PA to the PAL. Our study subjects were 11 female rhythmic gymnasts and 11 female lacrosse players. PAL was calculated from the total energy expenditure (TEE) as assessed by the doubly labeled water (DLW) method, and the resting metabolic rate (RMR) was measured using indirect calorimetry. Daily PA and sleep durations were assessed using an activity diary. The intensity (metabolic equivalent, MET) of non-training PA was measured using a tri-axial accelerometer. The amount (MET･h) of training was calculated by subtracting the amount of PA and sleep outside of training from the TEE. There were no significant differences in PAL between rhythmic gymnasts (2.59 ± 0.63) and lacrosse players (2.43 ± 0.46). Rhythmic gymnasts had a longer duration and larger amount of training PA and a shorter duration and smaller amount of non-training PA than did lacrosse players. The mean intensities of training and non-training PA were not significantly different between the groups. PAL was positively correlated with the amount of training in both rhythmic gymnasts (γs = 0.818) and lacrosse players (γs = 0.882). There were no significant relationships between PAL and non-training PA in both groups. Our results indicate that the amount of training strongly affects PAL in these athletes.

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