The effects of body composition changes to observed improvements in cardiopulmonary parameters after exercise training with cardiac rehabilitation

Milani, Richard V. and Lavie, Carl J. (1998) The effects of body composition changes to observed improvements in cardiopulmonary parameters after exercise training with cardiac rehabilitation. Chest, 113 3: 599-601. doi:10.1378/chest.113.3.599


Author Milani, Richard V.
Lavie, Carl J.
Title The effects of body composition changes to observed improvements in cardiopulmonary parameters after exercise training with cardiac rehabilitation
Journal name Chest   Check publisher's open access policy
ISSN 0012-3692
1931-3543
Publication date 1998-03
Sub-type Article (original research)
DOI 10.1378/chest.113.3.599
Volume 113
Issue 3
Start page 599
End page 601
Total pages 3
Place of publication Northbrook, IL, United States
Publisher American College of Chest Physicians
Language eng
Formatted abstract
Study objective: To discriminate the effects of body fat reduction on improvements in peak aerobic capacity made following exercise training during cardiac rehabilitation.
Design: Observational, prospective study.
Setting: Outpatient cardiovascular health center at regional academic center.
Patient interventions: Peak oxygen uptake (pkVo2), percent body fat, lean body mass (LBM), and other anthropometric measures were assessed before and after a 3-month program of cardiac rehabilitation and exercise training in 500 consecutive cardiac patients following a major coronary event. Baseline pkl=V:o2 was corrected for LBM (pklV:o2 lean) and compared with posttraining values.
Results: Following exercise training, percent body fat decreased 5% from 26.2±8.0 to 24.8±7.5 (p<0.0001), and LBM increased 1% from 61.3±12.5 to 61.7±11.8 kg (p=0.02). pkVo2 increased 16% from 16.0 ±4.1 to 18.5±4.8 mL/kg/min (p<0.0001), and pkVo2 lean increased 13% from 21.7±5.3 to 24.6±6.0 mL/kg/min (p<0.0001). Isolating the effects of reduction in body fat, we discern that these changes contributed to 0.3 of the 2.5 mL/kg/min increase in pkVo2 or 12% of the increase in pkVo2 observed.
Conclusions: Changes in body composition, as a consequence of dietary and exercise modification, contribute to 12% of the "observed" improvement noted in weight-adjusted peak aerobic capacity following cardiac rehabilitation and exercise training. Changes in pkVo2 lean should be used by investigators to assess the singular effects of exercise conditioning alone.
Keyword Body fat
Cardiac rehabilitation
Exercise capacity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Mon, 14 Mar 2011, 09:35:12 EST