The energy cost of cycling and aerobic performance of obese adolescent girls

C. L. Lafortuna, F. Agosti, C. Busti, R. Galli, A. Sartorio

Research output: Contribution to journalArticle


In order to assess the energy cost of cycling and aerobic capacity in juvenile obesity, responses to cycle ergometer exercise were studied in 10 pubertal obese (OB) [body mass index (BMI) SD score (SDS): 3.40±0.58 SD] adolescent girls (age: 16.0±1.2 yr) and in 10 normal-weight (NW, BMI SDS: -0.30±0.54) girls of the same age (15.1±1.9). To this aim, gas exchange, heart rate (HR), and energy expenditure (EE) were studied during graded cycle ergometer test at 40, 60, 80,100, and 120 W. The energy cost of cycling was higher in OB, being oxygen uptake (VO2) higher (about 20%) in OB than in NW girls at all workloads (p2 and VO2 at anaerobic threshold were significantly (p

Original languageEnglish
Pages (from-to)647-652
Number of pages6
JournalJournal of Endocrinological Investigation
Issue number8
Publication statusPublished - Sep 2009



  • Aerobic capacity
  • Bicycle ergometer
  • Exercise
  • Juvenile obesity
  • Mechanical efficiency
  • Oxygen uptake

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Cite this