This exploratory trial evaluates the effect of a structured exercise (STEX) or lifestyle intervention (PASS) program upon cardiovascular (CV) disease risk factors in children. Sixty-one schoolchildren were randomly assigned by school to an intervention or control (CON) condition. The effect of the STEX (compared with CON) was a mean benefit of −0.018 mm for average maximum carotid intimamedia thickness. The PASS intervention did not result in clinically important effects, and no other substantial changes were observed. Relatively high probability of clinically beneficial effects of the STEX intervention suggests that a larger, definitive randomized trial with longer follow-up is warranted.
Jayne Henaghan, Nicola McWhannell, Lawrence Foweather, N. Tim Cable, Alan M. Batterham, Gareth Stratton and Keith P. George
Rebecca M. Dagger, Ian G. Davies, Kelly A. Mackintosh, Genevieve L. Stone, Keith P. George, Stuart J. Fairclough and Lynne M. Boddy
Purpose: To assess the effects of the Children’s Health, Activity and Nutrition: Get Educated! intervention on body size, body composition, and peak oxygen uptake in a subsample of 10- to 11-year-old children. Methods: Sixty children were recruited from 12 schools (N = 6 intervention) to take part in the CHANGE! subsample study. Baseline, postintervention, and follow-up measures were completed in October 2010, March–April 2011, and June–July 2011, respectively. Outcome measures were body mass index z score, waist circumference, body composition assessed using dual-energy X-ray absorptiometry (baseline and follow-up only), and peak oxygen uptake. Results: Significant differences in mean trunk fat mass (control = 4.72 kg, intervention = 3.11 kg, P = .041) and trunk fat % (control = 23.08%, intervention = 17.75%, P = .022) between groups were observed at follow-up. Significant differences in waist circumference change scores from baseline to follow-up were observed between groups (control = 1.3 cm, intervention = −0.2 cm, P = .023). Favorable changes in body composition were observed in the intervention group; however, none of these changes reached statistical significance. No significant differences in peak oxygen uptake were observed. Conclusions: The results of the present study suggest the multicomponent curriculum intervention had small to medium beneficial effects on body size and composition health outcomes.