Cardiorespiratory fitness in overweight young boys and girls is underestimated due to less perceived exertion

作者: Emilio J Martinez-Lopez , Maria T Redecillas-Peiro , Manuel J De La Torre-Cruz , Sebastian Lopez-Serrano , Alberto Ruiz-Ariza

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摘要: BACKGROUND: Cardiorespiratory fitness (CRF) is considered by a number of researchers as the main marker of health during adolescence and for future adulthood. The usual assessment of CRF does not differentiate weight status or supported effort in youths during the test. This study compared and quantified the effect size of overweight status on CRF results of adolescents and established CRF’s relationship with perceived exertion (Borg’s scale adapted) during 20-m shuttle run test (20-m SRT).METHODS: Cross-sectional study with 9652 Spanish adolescents aged 12-16 years.RESULTS: The 87.5% of teenagers with excess weight showed lower CRF values than the average of normal-weight young people, however they perceive 7% less of effort during the CRF test (P< 0.001). The differences in CRF are similar according to gender and weight status, with focus on overweight, in adolescents (all P> 0.05 …

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