4.5 Article

The Effect of Endurance and Endurance-Strength Training on Bone Mineral Density and Content in Abdominally Obese Postmenopausal Women: A Randomized Trial

期刊

HEALTHCARE
卷 9, 期 8, 页码 -

出版社

MDPI
DOI: 10.3390/healthcare9081074

关键词

bone; densitometry; exercise; obesity; postmenopause

资金

  1. National Science Centre [UMO2014/13/B/NZ7/02209]
  2. Department of Pediatric Gastroenterology and Metabolic Diseases, Poznan University of Medical Sciences

向作者/读者索取更多资源

The study compared the effects of endurance training and endurance-strength training on bone density and mass in abdominally obese postmenopausal women, showing a significant increase in whole-body bone density with endurance-strength training. There was a significant difference in lumbar spine bone mass changes between the two groups, but both training programs similarly improved physical capacity.
The optimal type of exercise that simultaneously decreases body weight and preserves bone health in people with obesity is unknown. This parallel randomized trial aimed to compare the effect of endurance and endurance-strength training on bone mineral density (BMD) and content (BMC) in abdominally obese postmenopausal women. A total of 101 women were recruited and randomly assigned to endurance or endurance-strength training groups. Participants trained for 60 min per day, three times per week for 12 weeks. The endurance exercises were performed at an intensity of 50-75% of the maximum heart rate, whereas the strength exercises were at 50-60% of the one-repetition maximum. Pre- and post-intervention BMD and BMC of the total body, lumbar spine, and femoral neck and physical capacity were measured. There were no differences among the densitometric parameters in the endurance group, but a significant increase in whole-body BMD in the endurance-strength group was found. Moreover, there was a significant difference between the groups in the changes in the lumbar spine BMC. Furthermore, both training programs significantly improved physical capacity with no differences between groups. Endurance training was more effective in maintaining BMC at the lumbar spine. However, both groups did not differ in effect on BMD. Further studies with a long-term follow-up should be considered to confirm these findings. The study was registered with the German Clinical Trials Register within the number DRKS00019832, and the date of registration was 26 February 2020 (retrospective registration).

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