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Exercise and Blood Pressure in Children: A Meta-Analysis

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ClinicalTrials.gov Identifier: NCT00005521
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : May 13, 2016
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
To use the meta-analytic approach to examine the effects of aerobic exercise on resting systolic and diastolic blood pressure in children.

Condition or disease
Cardiovascular Diseases Heart Diseases Hypertension

Detailed Description:


Approximately 50 million Americans suffer from hypertension, a condition associated with increased risk for stroke, heart attack, and kidney failure. While non-pharmacological intervention has resulted in dramatic reductions in resting systolic and diastolic blood pressure for those with elevated pressures, a debate continues over the efficacy of pharmacological intervention because of deleterious side effects. As a result, there has been an increased interest in aerobic exercise as a non-pharmacologic approach in treating hypertension. Recent reviews of literature have synthesized research using the 'traditional' approach (chronologically arranging and describing the studies, perhaps by sub-topic) which may result in subjective, non-replicable conclusions. Consequently, the relationships among such variables as subject characteristics, experimental design quality, training program characteristics, and how they contribute to changes in resting systolic and diastolic blood pressure is not clear.

The meta-analytic approach is used in the study to synthesize research on the relationships among variables associated with aerobic exercise intervention and resting systolic and diastolic blood pressure in adults. Meta-analysis is a method of pooling the results of separate studies. It is a quantitative approach for increasing statistical power of primary end points and subgroups, resolving uncertainty when studies disagree, improving estimates of effect sizes, and answering questions not posed at the start of individual trials.


In the first two years of the study, a meta-analysis was conducted of all studies published since 1966 on aerobic exercise and blood pressure. The study was renewed in FY 2000 to conduct meta-analysis of all studies of exercise training in children and youth under age 21 years in which resting BP was measured. This will include both randomized and non-randomized clinical trials of at least eight weeks duration found in English journals and theses between 1966 and 1999. Standard meta-analysis techniques will be applied.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

Study Type : Observational
Time Perspective: Retrospective
Study Start Date : June 1998
Study Completion Date : July 2004

Information from the National Library of Medicine

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Ages Eligible for Study:   up to 100 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
No eligibility criteria

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00005521

Sponsors and Collaborators
National Heart, Lung, and Blood Institute (NHLBI)
OverallOfficial: George Kelley Massachusetts General Hospital