Key result
School-based exercise improves endurance, pulse pressure, and aortic pulse wave velocity versus control.
Why the study?
To evaluate the effectiveness of a school-based exercise intervention on endurance performance, blood pressure, and arterial stiffness in children.
Does a school-based exercise intervention improve endurance performance, blood pressure, and arterial stiffness in children?
RCT (n=105)
Does a school-based exercise intervention improve endurance performance, blood pressure, and arterial stiffness in children?
A school-based exercise intervention significantly improves endurance performance and parameters of arterial stiffness in children.
Supports school-based exercise programs to improve pediatric CV health; extends RCT evidence on arterial stiffness to children.
PURPOSE: To evaluate the effectiveness of a school-based exercise intervention on endurance performance (EP), blood pressure (BP), and arterial stiffness in children. METHODS: A total of 105 students (mean age = 8.2 [0.6] y; 51% girls; body mass index = 17.8 [3.0] kg/m2) were randomized to the intervention group (IG, n = 51) and control group (CG, n = 54). During a 37-week experimental period, the IG received an exercise intervention (2 × 45 min/wk) in addition to their regular school physical education class (3 × 45 min/wk). EP, peripheral and central BP, pulse pressure, augmentation pressure, augmentation index, and aortic pulse wave velocity were assessed. RESULTS: Following the intervention, significant changes (P < .05) in EP, peripheral and central systolic BP, pulse pressure, augmentation pressure, augmentation index, and aortic pulse wave velocity were found in the IG. Children in the CG displayed significant changes in peripheral and central diastolic BP. An analysis of the baseline-to-post changes revealed significant between-group differences in EP (P < .001), pulse pressure (P = .028), augmentation pressure (P = .007), and aortic pulse wave velocity (P = .037) that favored the IG and in peripheral and central diastolic BP that favored the CG. CONCLUSION: The school-based exercise intervention had beneficial effects not only on EP but also on different hemodynamic parameters.
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Ketelhut et al. (2020) conducted an RCT in Healthy children (n=105). School-based exercise intervention vs. Control group (regular physical education only) was evaluated on Endurance performance, blood pressure, and arterial stiffness (p=<.001). A school-based exercise intervention significantly improved endurance performance (P<0.001), pulse pressure (P=0.028), and aortic pulse wave velocity (P=0.037) compared to control.
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