Increased post-operative cardiopulmonary fitness in gastric bypass patients is explained by weight loss
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Increased post-operative cardiopulmonary fitness in gastric bypass patients is explained by weight loss. / Lund, M. T.; Hansen, M.; Wimmelmann, C. L.; Taudorf, L. R.; Helge, J. W.; Mortensen, E. L.; Dela, F.
In: Scandinavian Journal of Medicine & Science in Sports, Vol. 26, No. 12, 12.2016, p. 1428-1434.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Increased post-operative cardiopulmonary fitness in gastric bypass patients is explained by weight loss
AU - Lund, M. T.
AU - Hansen, M.
AU - Wimmelmann, C. L.
AU - Taudorf, L. R.
AU - Helge, J. W.
AU - Mortensen, E. L.
AU - Dela, F.
PY - 2016/12
Y1 - 2016/12
N2 - Roux-en-Y gastric bypass (RYGB) leads to a major weight loss in obese patients. However, given that most patients remain obese after the weight loss, regular exercise should be part of a healthier lifestyle. The primary aim of this study was to investigate the cardiopulmonary fitness in obese patients before and after RYGB. Thirty-four patients had body composition and cardiopulmonary fitness (VO2max) assessed and completed questionnaires regarding physical activity and function twice before RYGB (time points A and B) and 4 and 18 months after surgery (time points C and D). Weight loss was 37 ± 2 kg during the study period. VO2max increased (A: 21 ± 1 vs D: 29 mL/min/kg, P < 0.001), but absolute VO2max decreased (A: 2713 ± 126 vs 2609 ± 187 mL/min, P = 0.02) and VO2max per kilogram fat free mass did not change. Self-perceived limitations to perform exercise decreased and self-perceived physical fitness increased after RYGB. Self-reported low- and high-intensity physical activity did not change. With weight loss, self-rated fitness level increased and the limitations to perform exercise decreased in RYGB patients. Nevertheless, as shown by the lower absolute VO2max, RYGB patients do not adopt new exercise habits following surgery.
AB - Roux-en-Y gastric bypass (RYGB) leads to a major weight loss in obese patients. However, given that most patients remain obese after the weight loss, regular exercise should be part of a healthier lifestyle. The primary aim of this study was to investigate the cardiopulmonary fitness in obese patients before and after RYGB. Thirty-four patients had body composition and cardiopulmonary fitness (VO2max) assessed and completed questionnaires regarding physical activity and function twice before RYGB (time points A and B) and 4 and 18 months after surgery (time points C and D). Weight loss was 37 ± 2 kg during the study period. VO2max increased (A: 21 ± 1 vs D: 29 mL/min/kg, P < 0.001), but absolute VO2max decreased (A: 2713 ± 126 vs 2609 ± 187 mL/min, P = 0.02) and VO2max per kilogram fat free mass did not change. Self-perceived limitations to perform exercise decreased and self-perceived physical fitness increased after RYGB. Self-reported low- and high-intensity physical activity did not change. With weight loss, self-rated fitness level increased and the limitations to perform exercise decreased in RYGB patients. Nevertheless, as shown by the lower absolute VO2max, RYGB patients do not adopt new exercise habits following surgery.
KW - Gastric bypass
KW - RYGB
KW - weight loss
KW - VO2 max
KW - physical activity
U2 - 10.1111/sms.12593
DO - 10.1111/sms.12593
M3 - Journal article
C2 - 26635069
VL - 26
SP - 1428
EP - 1434
JO - Scandinavian Journal of Medicine & Science in Sports
JF - Scandinavian Journal of Medicine & Science in Sports
SN - 0905-7188
IS - 12
ER -
ID: 173363675