The Effect of Aerobic or Aerobic-Strength Exercise on Body Composition and Functional Capacity in Patients with BMI ?35 after Bariatric Surgery: a Randomized Control Trial

Alireza Hassannejad | Alireza Khlaj | Mohammad Ali Mansournia | Mastaneh Rajabian Tabesh | Zahra Alizadeh

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=137916
Date :  2017/05/19
Publish in :    Obesity Surgery: The Journal of Metabolic Surgery and Allied Care
DOI :  https://doi.org/10.1007/s11695-017-2717-3
Link :  http://dx.doi.org/10.1007/s11695-017-2717-3
Keywords :Bariatricsurgery .Functionalcapacity .Body composition .Exercise .Obesity

Abstract :

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Background Although previous studies suggested that bariatric surgery is the most effective and sustainable treatment methodformorbidobesityinlongterm,butwithoutchanging in lifestyle, maintaining optimal weight loss is almost impossible. Methods Sixty morbid obese patients (BMI ≥ 35) were evaluatedbeforeandafter12weeksofbariatricsurgeryinorderto compare the impact of two different exercise programs on body composition and functional capacity outcomes. Participants were divided into three groups: aerobic (A), aerobic-strength (AS), and control (C) group. Aerobic capacity was assessedwith 12-min walk-run test (12MWRT). Onerepetition maximum (1RM) test was performed to evaluation upper limb muscle strength. Lower extremity functional capacity was assessed by sit-to-stand test. Results Weight, percent body fat (PBF), and fat mass (FM) reduced greater in the trial groups in comparison to the C group (P 0.05). In the AS group, the reduction of fat-free mass (FFM) was significantly lower than that in the other groups. Mean changes in 12MWRT increased significantly in the intervention groups. The mean change in the sit-tostand scores was not statistically significant between the three groups.Comparingtheinterventiongroupsshowedthatmean changes in 1RM variables increased in AS group (P = 0.03). Conclusions Thedatasuggestsapositiveeffectofexerciseon weight and PBF decrease after surgery, and it leads to significant improvement on aerobic capacity. Moreover, doing resisted exercise caused greater preserving of lean mass.