NCT00184236

Cardiovascular Risk Factors in Overweight Adolescents

Aerobic Interval Training Reduces Cardiovascular Risk Factors More Than a Multitreatment Approach in Overweight Adolescents

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 54 (actual)
• Sponsor: Norwegian University of Science and Technology · Academic / Other
• Sex: All
• Age: 13 Years – 16 Years
• Healthy volunteers: Accepted

Summary

The aim of the present study was to determine the effects of either a multidisciplinary approach or intensity-controlled interval training on cardiovascular risk factors in overweight adolescents.

Detailed description

Several approaches have been used to improve cardiovascular health status and quality of life in obese children and adolescents, without coming to a consensus decision. Recently, a few studies have determined the effects of exercise training and diet on endothelial function in overweight and obese children and adolescents. The main findings are that only a moderate amount of exercise training and diet changes improves or restores endothelial function. It is difficult, however, to asses the separate effects of the training and diet, particularly because none of the studies have used a homogenous exercise training regimen. Unanimously, better, but affordable prevention and treatment strategies to improve wide-scale health outcome are called upon to slow down the current epidemic of overweight. It is now well established that physical activity reduces, but does not currently prevent the epidemic of obesity from either reaching global proportions or taxing public health and economy. Despite the recent advances in understanding the responsible biology of improved cardiovascular health with exercise training, several lines of research questions are still unresolved. For instance, the optimal program, e.g. when to initiate, whom to prescribe exercise to, which exercise-intensity is required, and the actual design of the treatment program, remain by far yet to determine.

Conditions

• Overweight
• Obesity

Interventions

Type	Name	Description
BEHAVIORAL	Multitreatment approach	12 months regimen consisting of group meetings every 2 weeks involving a physician, psychologist, physiotherapist and clinical nutritional physiologist. 21 h treatment during the first 3 months: 3 activity sessions (3 h) and 3 group conversations (4 h). Attendance inclusion criterium was set to minimum of 80%
BEHAVIORAL	Aerobic interval training	Walking/running 'uphill' on a treadmill twice a week for 3 months. 10 min warming-up at 70% of Hfmax before performing 4x4 intervals at 90-95% of Hfmax. 3 min active recovery at 70% of Hfmax between each interval. 5 min cool-down period, giving a total of 40 min.

Timeline

• Start date: 2005-02-01
• Primary completion: 2008-02-01
• Completion: 2008-05-01
• First posted: 2005-09-16
• Last updated: 2017-03-30

Locations

1 site across 1 country: Norway