Metabolic responses to submaximal treadmill walking and cycle ergometer pedalling in obese adolescents

Claudio L. Lafortuna, S. Lazzer, F. Agosti, C. Busti, R. Galli, G. Mazzilli, A. Sartorio

Research output: Contribution to journalArticle

Abstract

Physical activity is essential in obesity management because of the impact of exercise-related energy expenditure (EE) and fat oxidation (Fox) rate on a daily balance, but the specific physiological effects of different exercise modalities are scarcely known in obese individuals. The objective of the study was to compare the metabolic responses to treadmill (TM) and cycle ergometer (CE) exercise in obese adolescents. Gas exchange, heart rate (HR), blood lactate (LA) concentration, EE and Fox were determined at different intensity levels (up to about 85% of maximal oxygen uptake) during TM and CE in 14 pubertal (Tanner stage: >3) obese (BMI SDS: 2.15-3.86) male adolescents (age: 13-18 years). At comparable HR, oxygen uptake, EE and Fox were higher, and LA lower, during TM than CE (P

Original languageEnglish
Pages (from-to)630-637
Number of pages8
JournalScandinavian Journal of Medicine and Science in Sports
Volume20
Issue number4
DOIs
Publication statusPublished - Aug 2010

Keywords

  • Adolescence
  • Aerobic exercise
  • Lactate acidosis
  • Physical activity

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Medicine(all)

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