Estimated Aerobic Capacity Changes in Adolescents with Obesity Following High Intensity Interval Exercise

International journal of kinesiology and sports science

article

Brooke E. Starkoff¹  Ihuoma U. Eneli²  Andrea E. Bonny²  Robert P. Hoffman²  Steven T. Devor³ 

[1] and Physical Education, The College at Brockport, SUNY 350 New Campus Dr.;Nationwide Children’s Hospital 700 Children’s Dr.;Department of Human Sciences – Kinesiology Program, The Ohio State University A50 PAES Building

关键词: VO2max;    obesity;    childhood obesity;    aerobic capacity;    high intensity interval exercise;    physical activity;   

DOI  :  10.7575/aiac.ijkss.v.2n.3p.1

来源: Australian International Academic Centre PTY. LTD.

【 摘 要 】

Vigorous aerobic exercise may improve aerobic capacity (VO 2max ) and cardiometabolic profiles in adolescents with obesity, independent of changes to weight. Our aim was to assess changes in estimated VO 2max in obese adolescents following a 6-week exercise program of varying intensities. Adolescents with obesity were recruited from an American mid-west children’s hospital and randomized into moderate exercise (MOD) or high intensity interval exercise (HIIE) groups for a 6-week exercise intervention, consisting of cycle ergometry for 40 minutes, 3 days per week. Heart rate was measured every two minutes during each exercise session.  Estimated VO 2max measured via Åstrand cycle test, body composition, and physical activity (PA) enjoyment evaluated via questionnaire were assessed pre/post-intervention. Twenty-seven adolescents (age 14.7±1.5; 17 female, 10 male) completed the intervention. Estimated VO 2max increased only in the HIIE group (20.0±5.7 to 22.7±6.5 ml/kg/min, p=0.015). The HIIE group also demonstrated increased PA enjoyment, which was correlated with average heart rate achieved during the intervention (r=0.55; p=0.043). Six weeks of HIIE elicited improvements to estimated VO 2max in adolescents with obesity. Furthermore, those exercising at higher heart rates demonstrated greater PA enjoyment, implicating enjoyment as an important determinant of VO 2max , specifically following higher intensity activities.

【 授权许可】

Unknown