OBJECTIVE
To investigate the effects of 10 weeks of progressive vigorous‐intensity interval training as a single intervention on body composition among 70‐year‐old individuals with central obesity.
DESIGN
Randomized controlled trial (ClinicalTrials.gov registration No. NCT03450655).
SETTING
Community‐dwelling 70‐year‐old men and women living in the Umeå municipality in Sweden.
PARTICIPANTS
Seventy‐seven 70‐year‐old men and women with central obesity (greater than 1 kg visceral adipose tissue [VAT] for women and greater than 2 kg VAT for men).
INTERVENTION
Participants allocated to the intervention group were offered a 10‐week progressive concurrent exercise program performed three times per week. All participants in both groups had received tailored lifestyle recommendations focused on diet and physical activity at one occasion within 12 months prior to trial initiation.
MEASUREMENTS
The primary outcome was changes in VAT, and secondary outcomes included changes in total fat mass (FM), total lean body mass (LBM), and body mass index.
RESULTS
Comparing the groups, there were no significant differences in decrease of VAT mass (P = .10), although the intervention group significantly decreased FM by 716 g (P = .01) and gained LBM by 508 g (P = .03), compared to the control group. Furthermore, the effects of the training were significantly greater in the male subcohort (P < .05 for interaction), with positive effects also on VAT and FM, where men in the intervention group decreased VAT by 175 g (P < .05) and FM by 1364 g (P = .004), compared to the male controls.
CONCLUSIONS
The present trial demonstrates that 10 weeks of progressive vigorous interval training is sufficient to significantly decrease FM in older adults with central obesity, with positive effects also on LBM.
from Wiley: Journal of the American Geriatrics Society: Table of Contents http://bit.ly/2IQJhgG
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