TY - JOUR
T1 - Effects of bariatric surgery on cardiorespiratory fitness
T2 - A systematic review and meta-analysis
AU - Ibacache-Saavedra, Paulina
AU - Jerez-Mayorga, Daniel
AU - Carretero-Ruiz, Alejandro
AU - Miranda-Fuentes, Claudia
AU - Cano-Cappellacci, Marcelo
AU - Artero, Enrique G.
N1 - Publisher Copyright:
© 2021 World Obesity Federation
PY - 2021
Y1 - 2021
N2 - Although bariatric surgery (BS) is recognized as an effective strategy for body weight loss, its impact on cardiorespiratory fitness (CRF) is still unclear. We aimed to examine postoperative changes in CRF (VO2max/peak) and its relationship with weight loss among adults undergoing BS. We systematically searched the WoS, PubMed, MEDLINE, and Scopus databases. Observational and intervention studies were selected reporting the presurgery and postsurgery CRF, measured by breath-by-breath VO2 or its estimation. Eleven articles (312 patients) revealed that BS leads to a reduction in absolute VO2max/peak in the short term (effect size, ES = −0.539; 95%CI = −0.708, −0.369; p < 0.001), and those patients who suffered a more significant decrease in BMI after BS also had a greater loss of absolute VO2max/peak. However, VO2max/peak relative to body weight increased after surgery (ES = 0.658; 95%CI = 0.473, 0.842; p < 0.001). An insufficient number of studies were found investigating medium and long-term changes in CRF after BS. This study provides moderate-quality evidence that the weight loss induced by BS can reduce CRF in the short term, which represents a therapeutic target to optimize BS outcomes. More high-quality studies are needed to evaluate the impact of BS on VO2max/peak in the short, medium, and long term including normalized values for fat-free mass.
AB - Although bariatric surgery (BS) is recognized as an effective strategy for body weight loss, its impact on cardiorespiratory fitness (CRF) is still unclear. We aimed to examine postoperative changes in CRF (VO2max/peak) and its relationship with weight loss among adults undergoing BS. We systematically searched the WoS, PubMed, MEDLINE, and Scopus databases. Observational and intervention studies were selected reporting the presurgery and postsurgery CRF, measured by breath-by-breath VO2 or its estimation. Eleven articles (312 patients) revealed that BS leads to a reduction in absolute VO2max/peak in the short term (effect size, ES = −0.539; 95%CI = −0.708, −0.369; p < 0.001), and those patients who suffered a more significant decrease in BMI after BS also had a greater loss of absolute VO2max/peak. However, VO2max/peak relative to body weight increased after surgery (ES = 0.658; 95%CI = 0.473, 0.842; p < 0.001). An insufficient number of studies were found investigating medium and long-term changes in CRF after BS. This study provides moderate-quality evidence that the weight loss induced by BS can reduce CRF in the short term, which represents a therapeutic target to optimize BS outcomes. More high-quality studies are needed to evaluate the impact of BS on VO2max/peak in the short, medium, and long term including normalized values for fat-free mass.
KW - bariatric surgery
KW - obesity
KW - physical fitness
KW - weight loss
UR - http://www.scopus.com/inward/record.url?scp=85121485143&partnerID=8YFLogxK
U2 - 10.1111/obr.13408
DO - 10.1111/obr.13408
M3 - Review article
AN - SCOPUS:85121485143
SN - 1467-7881
JO - Obesity Reviews
JF - Obesity Reviews
ER -
