Effects of a Physical Activity Program on Cardiorespiratory Fitness and Pulmonary Function in Obese Women after Bariatric Surgery: a Pilot Study.

Onofre T; Carlos R; Oliver N; Felismino A; Fialho D; Corte R; da Silva EP; Godoy E; Bruno S,

Obesity Surgery [Obes Surg], ISSN: 1708-0428, 2017 Aug; Vol. 27 (8), pp. 2026-2033; Publisher:
Springer Science + Business Media; PMID: 28386756;

In severely obese individuals, reducing body weight induced by bariatric
surgery is able to promote a reduction in comorbidities and improve
respiratory symptoms. However, cardiorespiratory fitness (CRF)
reflected by peak oxygen uptake (VO2peak) may not improve in
individuals who remain sedentary post-surgery. The objective of this
study was to evaluate the effects of a physical training program on CRF
and pulmonary function in obese women after bariatric surgery, and to
compare them to a control group.
Methods: Twelve obese female candidates for bariatric surgery were evaluated in the preoperative, 3 months
postoperative (3MPO), and 6 months postoperative (6MPO) periods through
anthropometry, spirometry, and cardiopulmonary exercise testing (CPX).
In the 3MPO period, patients were divided into control group (CG,
n = 6) and intervention group (IG, n = 6). CG received only general
guidelines while IG underwent a structured and supervised physical
training program involving aerobic and resistance exercises, lasting
12 weeks.
Results: All patients had a significant reduction in
anthropometric measurements and an increase in lung function after
surgery, with no difference between groups. However, only IG presented
a significant increase (p < 0.05) in VO2peak and total CPX duration of
5.9 mL/kg/min (23.8%) and 4.9 min (42.9%), respectively.Conclusions:
Applying a physical training program to a group of obese women after
3 months of bariatric surgery could promote a significant increase in
CRF only in the trained group, yet also showing that bariatric surgery
alone caused an improvement in the lung function of both groups.