Marine Asselin1,2,3, Nancy Vibarel-Rebot4,5, Virgile Amiot6, Katia Collomp4,5,7. 1. CIAMS, Université Orléans, 45067, Orléans, France. marine.asselin@univ-orleans.fr. 2. CIAMS, Université Paris-Saclay, 91405, Orsay Cedex, France. marine.asselin@univ-orleans.fr. 3. Laboratoire CIAMS, EA 4532, Université d'Orléans, UFR Sciences Et Techniques, 2 Allée du Château, BP 6237, 45062, Cedex 2, Orléans, France. marine.asselin@univ-orleans.fr. 4. CIAMS, Université Orléans, 45067, Orléans, France. 5. CIAMS, Université Paris-Saclay, 91405, Orsay Cedex, France. 6. Service de Médecine du Sport, CHR d'Orléans, 45067, Orléans, France. 7. Département Des Analyses de L'AFLD, 92290, Chatenay-Malabry, France.
Abstract
PURPOSE: Although it is well established that physical activity (PA) may partially correct the metabolic and hormonal alterations observed in patients with obesity, knowledge of its impact after bariatric surgery (BS) remains poor. The purpose of this study was to assess the repercussions of physical training on cortisol and testosterone responses in post-BS women. MATERIALS AND METHODS: According to a randomized clinical trial, a PA group (11 women) started a 3-month physical training 6 weeks after BS, whereas no specific activity was proposed to a control group (9 women). Submaximal exercise (i.e., 30 min at 60% VO2peak) was performed by all subjects just before and after the 3-month period. Blood samples were taken at rest, after 10, 20, and 30 min of exercise and 10 min of passive recovery for cortisol and testosterone analyses. Blood glucose, blood lactate, and heart rate were assessed at the same time. RESULTS: Before the program, a significant increase in cortisol, blood lactate, and heart rate was observed in all subjects during the submaximal exercise vs. rest, with no change in blood glucose and testosterone. After vs. before the 3-month period, no modification in any parameter was noted at rest in either group. However, during exercise, lack of cortisol increase and lower heart rate were found in the PA group only, with disappearance of the increase in blood lactate in both groups. CONCLUSION: Our results show some beneficial effects of physical training on hormonal and physical parameters. Further studies are needed to determine the biological and clinical significance of these adaptations induced by physical training in women after BS.
PURPOSE: Although it is well established that physical activity (PA) may partially correct the metabolic and hormonal alterations observed in patients with obesity, knowledge of its impact after bariatric surgery (BS) remains poor. The purpose of this study was to assess the repercussions of physical training on cortisol and testosterone responses in post-BS women. MATERIALS AND METHODS: According to a randomized clinical trial, a PA group (11 women) started a 3-month physical training 6 weeks after BS, whereas no specific activity was proposed to a control group (9 women). Submaximal exercise (i.e., 30 min at 60% VO2peak) was performed by all subjects just before and after the 3-month period. Blood samples were taken at rest, after 10, 20, and 30 min of exercise and 10 min of passive recovery for cortisol and testosterone analyses. Blood glucose, blood lactate, and heart rate were assessed at the same time. RESULTS: Before the program, a significant increase in cortisol, blood lactate, and heart rate was observed in all subjects during the submaximal exercise vs. rest, with no change in blood glucose and testosterone. After vs. before the 3-month period, no modification in any parameter was noted at rest in either group. However, during exercise, lack of cortisol increase and lower heart rate were found in the PA group only, with disappearance of the increase in blood lactate in both groups. CONCLUSION: Our results show some beneficial effects of physical training on hormonal and physical parameters. Further studies are needed to determine the biological and clinical significance of these adaptations induced by physical training in women after BS.