RT Journal Article
SR Electronic
T1 High-intensity interval training for improving health-related fitness in adolescents: a systematic review and meta-analysis
JF British Journal of Sports Medicine
JO Br J Sports Med
FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine
SP 1253
OP 1261
DO 10.1136/bjsports-2014-094490
VO 49
IS 19
A1 S A Costigan
A1 N Eather
A1 R C Plotnikoff
A1 D R Taaffe
A1 D R Lubans
YR 2015
UL http://bjsm.bmj.com/content/49/19/1253.abstract
AB Background High-intensity interval training (HIIT) may be a feasible and efficacious strategy for improving health-related fitness in young people. The objective of this systematic review and meta-analysis was to evaluate the utility of HIIT to improve health-related fitness in adolescents and to identify potential moderators of training effects.Methods Studies were considered eligible if they: (1) examined adolescents (13–18 years); (2) examined health-related fitness outcomes; (3) involved an intervention of ≥4 weeks in duration; (4) included a control or moderate intensity comparison group; and (5) prescribed high-intensity activity for the HIIT condition. Meta-analyses were conducted to determine the effect of HIIT on health-related fitness components using Comprehensive Meta-analysis software and potential moderators were explored (ie, study duration, risk of bias and type of comparison group).Results The effects of HIIT on cardiorespiratory fitness and body composition were large, and medium, respectively. Study duration was a moderator for the effect of HIIT on body fat percentage. Intervention effects for waist circumference and muscular fitness were not statistically significant.Conclusions HIIT is a feasible and time-efficient approach for improving cardiorespiratory fitness and body composition in adolescent populations.