Dataset Information

Fat mass modifies the association of fat-free mass with symptom-limited treadmill duration in the Coronary Artery Risk Development in Young Adults (CARDIA) Study.

ABSTRACT:

Background

The assessment of fat mass and fat-free mass in relation to the symptom-limited maximal exercise duration (Max(dur)) of a treadmill test allows for insight into the association of body composition with treadmill performance potential.

Objective

We investigated the complex associations between fat mass and fat-free mass and Max(dur) in a population setting.

Design

The Max(dur) of a graded exercise treadmill test and body composition by dual-energy X-ray absorptiometry were estimated in 2413 black and white men and women aged 38-50 y from the Coronary Artery Risk Development in Young Adults (CARDIA) cohort.

Results

The mean Max(dur) was ?7.5 s shorter per kilogram of fat mass in both men and women and independent of fat-free mass, height, race, television watching, physical activity, systolic blood pressure, lung function, and education. Fat mass modified the association of fat-free mass with the Max(dur) (2-way interaction P < 0.001), and the interaction was stronger in women than in men. In men in the lowest fat-mass quartile, the Max(dur) was 1.3 s longer per kilogram of fat-free mass and was 0.5 s shorter per kilogram of fat-free mass in the highest fat-mass quartile. In contrast, in women with the least fat mass, the Max(dur) was 2.7 s longer per kilogram of fat-free mass and was 2.8 s shorter per kilogram of fat-free mass in the highest fat-mass quartile.

Conclusions

The Max(dur) was negatively related to fat mass. Fat-free mass in obese people contributed little to the treadmill performance potential as assessed by the Max(dur), although the contribution of fat-free mass was positive in thinner people.

SUBMITTER: Zhu N

PROVIDER: S-EPMC3142718 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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Publications

Fat mass modifies the association of fat-free mass with symptom-limited treadmill duration in the Coronary Artery Risk Development in Young Adults (CARDIA) Study.

Zhu Na N Jacobs David R DR Sidney Stephen S Sternfeld Barbara B Carnethon Mercedes M Lewis Cora E CE Shay Christina M CM Sood Akshay A Bouchard Claude C

The American journal of clinical nutrition 20110608 2

<h4>Background</h4>The assessment of fat mass and fat-free mass in relation to the symptom-limited maximal exercise duration (Max(dur)) of a treadmill test allows for insight into the association of body composition with treadmill performance potential.<h4>Objective</h4>We investigated the complex associations between fat mass and fat-free mass and Max(dur) in a population setting.<h4>Design</h4>The Max(dur) of a graded exercise treadmill test and body composition by dual-energy X-ray absorptiom ...[more]

PMID: 21653799

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Dataset Information

Fat mass modifies the association of fat-free mass with symptom-limited treadmill duration in the Coronary Artery Risk Development in Young Adults (CARDIA) Study.

Background

Objective

Design

Results

Conclusions

Publications

Fat mass modifies the association of fat-free mass with symptom-limited treadmill duration in the Coronary Artery Risk Development in Young Adults (CARDIA) Study.

Similar Datasets

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