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J Clin Endocrinol Metab. 2009 Sep;94(9):3226-33. doi: 10.1210/jc.2008-2706. Epub 2009 Jun 30.

Resistance training does not contribute to improving the metabolic profile after a 6-month weight loss program in overweight and obese postmenopausal women.

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  • 1Faculty of Physical Education and Sports, University of Sherbrooke, J1K 2R1, and Research Centre on Aging, Health and Social Services Centre, Sherbrooke University Institute of Geriatrics, Sherbrooke, Qu├ębec, Canada. martin.brochu@usherbrooke.ca

Abstract

CONTEXT:

Limited data are available regarding the impact of caloric restriction (CR) in combination with resistance training (RT) on the metabolic profile of postmenopausal women.

OBJECTIVE:

The objective of the study was to determine whether RT adds to CR in improving body composition and the metabolic profile.

DESIGN AND SETTING:

This was a 6-month, randomized, clinical trial.

PATIENTS:

Patients included 107 postmenopausal women (body mass index >27 kg/m(2)).

INTERVENTION:

The intervention was a 6-month CR alone or in combination with a RT program.

MAIN OUTCOME MEASURES:

Fat mass (FM), lean body mass (LBM), abdominal sc fat and visceral fat, fasting lipids, insulin sensitivity, resting blood pressure, and inflammation markers were measured.

RESULTS:

Both groups were similar at baseline and significantly decreased body weight, body mass index, FM, percent FM, abdominal sc fat, and visceral fat after the study (P < 0.001), with greater losses of percent FM and trunk FM in the CR + RT group (P < 0.05). LMB significantly decreased in the CR (-0.9 +/- 2.4 kg) and the CR+RT (-0.4 +/- 2.2 kg) groups (P < 0.005), with no difference between them. Both groups significantly improved plasma triglycerides, fasting insulin level, glucose disposal, and markers of the inflammation profile after weight loss (P < 0.05), with no difference between groups. No improvements were observed for the other variables of interest in both groups.

CONCLUSIONS:

CR+RT was associated with greater losses in percent FM and trunk FM compared with CR alone. However, CR+RT was not associated with additional improvements in the metabolic profile compared with CR alone.

PMID:
19567540
DOI:
10.1210/jc.2008-2706
[PubMed - indexed for MEDLINE]
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