METHODS: This is a pragmatic randomised controlled intervention. The study was carried out in a Hong Kong Government secondary school. Thirty-eight lean and active boys and girls were randomised to either the resistance training group or the control group. Students in the resistance training group received in-school 10-wk supervised resistance training twice per week, with each session lasting 70 min. Main outcome measures taken before and after training included brachial endothelial dependent flow-mediated dilation, body composition, fasting serum lipids, fasting glucose and insulin, high sensitive C-reactive protein, 24-h ambulatory blood pressure and aerobic fitness.
RESULTS: The only training related change was in endothelial dependent flow-mediated dilation which increased from 8.5% to 9.8%. A main effect of time and an interaction (P < 0.005) indicated that this improvement was a result of the 10-wk resistance training. Main effects for time (P < 0.05) in a number of anthropometric, metabolic and vascular variables were noted; however, there were no significant interactions indicating the change was more likely an outcome of normal growth and development as opposed to a training effect.
CONCLUSION: Ten weeks of resistance training in school appears to have some vascular benefit in active, lean children. Copyright © The Author(s) 2016. Published by Baishideng Publishing Group Inc. All rights reserved.
CitationYu, C. C.-W., McManus, A. M., So, H.-K., Chook, P., Au, C.-T., Li, A. M. ... Sung, R. Y.-T. (2016). Effects of resistance training on cardiovascular health in non-obese active adolescents. World Journal of Clinical Pediatrics, 5, 293-300. doi: 10.5409/wjcp.v5.i3.293.
- Strength training
- Cardiometabolic risk factors
- Endothelial function
- School-based training program
- High sensitive C-reactive protein
- 24-h ambulatory blood pressure
- Aerobic fitness