Detailed Search Results
| Author/Association: | Schranz N, Tomkinson G, Parletta N, Petkov J, Olds T |
| Title: | Can resistance training change the strength, body composition and self-concept of overweight and obese adolescent males? A randomised controlled trial [with consumer summary] |
| Source: | British Journal of Sports Medicine 2014 Oct;48(20):1482-1188 |
| Method: | clinical trial |
| Method Score: | 7/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: Yes; Adequate follow-up: Yes; Intention-to-treat analysis: Yes; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
| Consumer Summary: | WHAT ARE THE NEW FINDINGS: A 6-month resistance training intervention has a moderate-to-large effect on the exercise and self-esteem of overweight and obese adolescent males, relative to Controls. Changes in psychological outcomes were not mediated by changes in strength and body composition. At the12-month follow-up, all positive changes had returned to baseline. HOW MIGHT IT IMPACT ON PRACTICE IN THE NEAR FUTURE: The inclusion of resistance training in sustainable community or school-based programmes to maintain positive changes in psychological outcomes. Highlights the importance of including a non-exercise placebo group to evaluate the social interaction impact on self-concept. Shows that there is a need to design sustainable programmes that can have a positive effect on not only psychological outcomes but also physical outcomes such as body composition. |
| Abstract: | BACKGROUND/AIM: Resistance training is an exercise modality at which overweight and obese adolescents can excel and which can therefore positively affect their psychological well-being. The aim of this study was to determine the effect of a 6-month resistance training intervention on the self-concept strength and body composition of overweight and obese adolescent males. METHODS: 56 overweight and obese males aged 13 to 17 years were randomly allocated to an intervention (n = 30) or control (n = 26) group. Primary (psychological) and secondary (strength and body composition) outcomes were assessed at baseline as well as at 3 (halfway through the intervention), 6 (immediately postintervention) and 12 months follow-up. Random effects mixed modelling was used to determine the effects of the intervention. RESULTS: Statistically significant differences between the intervention and control groups were observed at 3-month and 6-month assessments for exercise self-efficacy, resistance training confidence and self-esteem. Large increases in strength for the intervention group, relative to controls, were also observed with no substantial changes in body composition shown for either group. Values for all variables returned to baseline following completion of the programme. CONCLUSIONS: A 6-month resistance training intervention can positively affect the self-concept and strength of overweight and obese adolescent boys. Reproduced with permission from the BMJ Publishing Group. Full text (sometimes free) may be available at these link(s):  help |
