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Randomized Controlled Trial
. 2022 Feb 16;12(1):2567.
doi: 10.1038/s41598-022-06461-8.

Effects of linear periodization of combined training on quality of life of adults with obesity: a blind randomized controlled trial

Willen Remon Tozetto  1   2 , Larissa Dos Santos Leonel  3   4 , Tiago Turnes  3   4 , Giovani Firpo Del Duca  3   4
Affiliations
Randomized Controlled Trial

Effects of linear periodization of combined training on quality of life of adults with obesity: a blind randomized controlled trial

Willen Remon Tozetto et al. Sci Rep. .

Abstract

This study aimed to compare the effect of 16-weeks of combining aerobic and strength training with a linear increase or fixed intensity on the health-related quality of life (HRQoL) of obese adults. This single-blinded clinical trial involved adults with obesity (BMI ≥ 30 kg/m2), randomized into control (CG), fixed intensity (FG), or linear increase (LG) groups. The FG and LG performed 16 weeks of combined (aerobic + strength) training for 60 min, three times a week. The FG performed aerobic exercises between 50 and 59% of the heart rate reserve (HRres) and strength at 10-12 maximum repetitions (RM). The LG started with 40-49% of HRres and 12-14 RM and progressively increased the intensity (50-59% and 10-12 RM; 60-69% and 8-10 RM). The HRQoL was assessed using the SF-36 questionnaire. Generalized estimation equations and mean differences (∆) were used. Of the 69 participants (23 per group), 36 completed the intervention (CG = 13, FG = 9, and LG = 14). A significant difference was observed in the time of the physical function, with superiority in the training groups (CG: ∆ = 1.2 vs. FG and LG, respectively: ∆ = 10.0). The mental health component and mental health domain showed significant differences for the FG (∆ = 30.2 and ∆ = 23.1, respectively). In conclusion, the combined training improved physical functioning. Specifically, fixed-intensity training effectively enhanced mental health indicators.Trial Registration: This study is registered at www.ensaiosclinicos.gov.br/ (No. RBR-3c7rt3), Date of registration: 07/02/2018.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Flowchart of the study process.
Figure 2
Figure 2
Individual scores in the components of health-related quality of life before and after the intervention period in adults with obesity.
See this image and copyright information in PMC

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