Effects of 10 weeks of walking-based exercise training on resting substrate oxidation in postmenopausal women with obesity

GÜZEL Y., ATAKAN M. M., TURNAGÖL H. H., KOŞAR Ş. N.

EUROPEAN JOURNAL OF CLINICAL NUTRITION, vol.79, no.4, pp.311-319, 2025 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 79 Issue: 4
  • Publication Date: 2025
  • Doi Number: 10.1038/s41430-024-01546-1
  • Journal Name: EUROPEAN JOURNAL OF CLINICAL NUTRITION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Agricultural & Environmental Science Database, BIOSIS, CAB Abstracts, CINAHL, EMBASE, Food Science & Technology Abstracts, Gender Studies Database, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.311-319
  • Hacettepe University Affiliated: Yes

Abstract

Background and aims: Accumulating evidence supports the effectiveness of moderate-intensity aerobic training on metabolic health, with limited studies investigating change in resting substrate oxidation. The aim of this study was to explore whether 10 weeks of walking-based aerobic training would alter substrate oxidation in postmenopausal women with obesity. Methods and results: Twenty-four postmenopausal women with obesity who were assigned into the control (n = 12) or exercise groups (n = 12) undertook a 10-week aerobic training program (3 dweek-1) that involved walking exercises at 50-70% of heart rate reserve on a treadmill, with exercise volume increased from 25 to 40 minday-1. Resting metabolic rate (RMR) and body composition were measured pre- and post-training. Whole-body substrate oxidation was calculated using respiratory data collected during RMR measurement via indirect calorimetry. No significant change was noted (p > 0.05) in resting fat oxidation and carbohydrate oxidation in the exercise group. Resting respiratory exchange ratio and RMR did not alter in response to the training program (p > 0.05). Conclusion: Our results show that a 10-week of moderate-intensity aerobic training does not modify substrate oxidation in postmenopausal women with obesity.