The physiological cost of walking in overfat girls
Journal Title: Antropomotoryka. Journal of Kinesiology and Exercise Sciences - Year 2010, Vol 20, Issue 51
Abstract
[b]Aim of the work.[/b] Determination of physiological cost of locomotion effort – treadmill walking at various speeds in girls with excessive body fat (%) aged about 10 years.[b]Material and methods.[/b] The study covered 40 girls: 20 with excessive body fat (33.2 ± 5.6%F) and 20 with normal level (14.5 ± 4.9%F). They walked on a treadmill at two speeds (3.6 km · h–1, 4.8 km · h–1).[b]Results.[/b] Total VO2 (l · min–1) was by 22% and 26% (p < 0.05) greater in girls with excessive body fat than among girls with average level. Girls in the study group achieved lower values of VO2 · kg–1 13% and 10%. VO2 values expressing the relative load on the body compared to maxima of this parameter were by 10% higher in the study group than in the control during slow walk and ca. 14% (p < 0.05) higher during faster walk. At both marching speeds the study group exhibited significantly higher values of VE. No significant differences in HR were noted.[b]Conclusions.[/b] Higher values of VO2, %VO2max, %VEmax and %HRmax during locomotion effort of overfat girls at the same intensity of test exertion indicate higher cost of physical exercise incurred by overfat girls.
Authors and Affiliations
Jadwiga Szymura, Marcin Maciejczyk, Joanna Gradek, Magdalena Więcek, Jerzy Cempla, Marek Bawelski
Keywords
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