Effects of a Pre-surgery Supervised Exercise Training 1 Year After Bariatric Surgery: a Randomized Controlled Study
We have previously reported on the benefits of Pre-Surgical Exercise Training (PreSET) on physical fitness and social interactions in subjects awaiting bariatric surgery (BS). However, data are needed to know whether these benefits are maintained post-BS.
The purpose of this paper was to evaluate the effect of PreSET on physical activity (PA) level, physical fitness, PA barriers, and quality of life (QoL) 1 year (1-Y) after BS.
Of the 30 participants randomized into two groups (PreSET and usual care), 25 were included in the final analysis. One year after BS, time spent in different PA intensities and number of steps were assessed with an accelerometer. Before BS and until 1-Y after BS, physical fitness was assessed with symptom-limited cardiac exercise test, 6-min walk test (6MWT), and sit-to-stand, half-squat, and arm curl tests. QoL, PA barriers, and PA level were evaluated with questionnaires.
The number of steps (7460 vs 4287) and time spent in light (3.2 vs 2.2 h/day) and moderate (0.6 vs 0.3 h/day) PA were higher in the PreSET group 1-Y after BS. The changes in 6MWT heart cost (1.3 vs 0.6 m/beats/min), half-squat test (38.8 vs 10.3 s), and BMI (− 16.8 vs − 13.5 kg/m2) were significantly greater in the PreSET group compared to those in the usual care group. No other significant difference between groups was observed.
The addition of the PreSET to individual lifestyle counseling seems effective to improve PA level and submaximal physical fitness 1-Y after BS. Studies with larger cohorts are now required to confirm these results.
The trial was registered at clinicaltrials.gov (NCT01452230).
KeywordsPhysical activity Severe obesity Physical fitness Quality of life Bariatric surgery
We would like to gratefully thank research professionals (Vicki Lebrun, Marie-Michèle Rosa-Fortin), the kinesiologist (Anouk Landry), and trainees of Université de Sherbrooke (Canada) (Gabrielle Lebel, Rachel Lapointe, Alexandrine Boucher, Sofia Vasquez) who contributed to the supervised exercise training sessions and data collection.
This study was funded by the Canadian Institutes of Health Research (CIHR, Grant No. OPB-131592 to MFL). At the time of the study, AB was the recipient of a scholarship from the Department of Medicine of Université de Sherbrooke. At the time of the study, MFL was the recipient of a National Researcher Award from the Fonds de recherche du Québec–Santé (FRQ-S). The Research Center of the Centre hospitalier universitaire de Sherbrooke is a FRQ-S-funded research center.
Compliance with Ethical Standards
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
Conflict of Interest
The authors declare that they have no conflict of interest.
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