The effects of time and intensity of exercise on novel and established markers of CVD in adolescent youth
Buchan, Duncan S.
Young, John D.
Thomas, Non E.
Tong, Tom K.
Malina, Robert M.
Baker, Julien S.
MetadataShow full item record
Objectives: This article examines the effects of brief, intense exercise in comparison with traditional endurance exercise on both novel and traditional markers of cardiovascular disease (CVD) in youth. Methods: Forty seven boys and ten girls (16.4 ± 0.7 years of age) were divided into a moderate (MOD), high intensity (HIT), or a control group. The MOD group (12 boys, 4 girls) and HIT group (15 boys, 2 girls) performed three weekly exercise sessions over 7 weeks. Each session consisted of either four to six repeats of maximal sprint running within a 20 m area with 20–30 s recovery (HIT) or 20 min continuous running within a 20 m area at ∼70% maximal oxygen uptake (VO2max). Results: Total exercise time commitment over the intervention was 420 min (MOD) and 63 min (HIT). Training volume was 85% lower for the HIT group. Total estimated energy expenditure was ∼907.2 kcal (HIT) and ∼4410 kcal (MOD). Significant improvements (P ≤ 0.05) were found in systolic blood pressure, aerobic fitness, and body mass index (BMI) postintervention (HIT). In the MOD group, significant (P ≤ 0.05) improvements were noted in aerobic fitness, percentage body fat (%BF), BMI, fibrinogen (Fg), plasminogen activator inhibitor-1, and insulin concentrations. Conclusions: These findings demonstrate that brief, intense exercise is a time efficient means for improving CVD risk factors in adolescents. Am. J. Hum. Biol., 2011. © 2011 Wiley-Liss, Inc.
American Journal of Human Biology
Buchan, D.S., Ollis, S., Young, J.D., Thomas, N.E., Cooper, S.M., Tong, T.K., Nie, J., Malina, R.M. and Baker, J.S., 2011. The effects of time and intensity of exercise on novel and established markers of CVD in adolescent youth. American Journal of Human Biology, 23(4), pp.517-526.
This article was published in American Journal of Human Biology on 4 April 2011 (online), available at http://dx.doi.org/10.1002/ajhb.21166
- Sport Research Groups 
Showing items related by title, author, subject and abstract.
A Comparison of Resting Blood Pressure Differences Between Those Trained in Different Exercise Modalities: Is Resistance Training as Beneficial as Aerobic Training to Cardiovascular Health? Davies, Henry (University of Wales Institute Cardiff, 2012)Resting blood pressure is a strong predictor of cardiovascular disease, with direct implications to cardiovascular health. Exercise is a powerful non-pharmacological treatment for hypertension. Aerobic forms of exercise ...
Effect of exercise training on left ventricular mechanics after acute myocardial infarction-an exploratory study McGregor, G.; Stöhr, Eric J.; Oxborough, D.; Kimani, P.; Shave, Rob (Elsevier, 2018-01-31)Background = Cardiac rehabilitation (CR) exercise training is beneficial after myocardial infarction (MI). Whilst the peripheral adaptations to training are well defined, little is known regarding the effect on left ...
The impact of an 8-week green-exercise programme on systemic health, and on markers associated with cardiovascular disease risk. Thompson, Jane Elizabeth S. (Cardiff Metropolitan University, 2014)The current PhD project aimed to carry out an investigation into the effect of green-exercise programmes on markers of health related to cardiovascular risk. These markers derived from three diverse areas; blood-borne ...