Effects of Resistance Training With or Without Protein Supplementation on Body Composition and Resting Energy Expenditure in Patients 2-7 Years PostRoux-en-Y Gastric Bypass: a Controlled Clinical Trial.
Study Goal
The researchers aimed to determine the effects of resistance training (RT) and protein supplementation, alone and combined, on body composition and resting energy expenditure (REE) in the late postoperative period of Roux-en-Y gastric bypass (RYGB).
Results Summary
Combined RT and protein supplementation increased fat-free mass (FFM) and skeletal muscle mass (SMM) without altering REE. These strategies improved muscle-related parameters and potentially enhanced physical function.
Population
Patients 2-7 years post-RYGB, partially matched on BMI, age, sex, and years after surgery.
Effective Dosage
Whey protein supplementation (specific dosage not mentioned).
Duration
Not specified in the abstract.
Interactions
None mentioned.
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
Resistance training (RT) combined with whey protein supplementation | increase | fat-free mass (FFM) | patients in the late postoperative period of Roux-en-Y gastric bypass (RYGB) | - | can increase | #1 |
Resistance training (RT) combined with whey protein supplementation | increase | skeletal muscle mass (SMM) | patients in the late postoperative period of Roux-en-Y gastric bypass (RYGB) | - | can increase | #2 |
Resistance training (RT) combined with whey protein supplementation | no change | resting energy expenditure (REE) | patients in the late postoperative period of Roux-en-Y gastric bypass (RYGB) | - | without changing | #3 |
Resistance training (RT) combined with whey protein supplementation | increase | muscle-related parameters | patients in the late postoperative period of Roux-en-Y gastric bypass (RYGB) | - | effective in improving | #4 |
Resistance training (RT) combined with whey protein supplementation | increase | the patients' physical function | patients in the late postoperative period of Roux-en-Y gastric bypass (RYGB) | - | potentially in improving | #5 |
BACKGROUND: Resistance training (RT) and adequate protein intake are recommended as strategies to preserve fat-free mass (FFM) and resting metabolic demand after bariatric surgery. However, the effect of both interventions combined in the late postoperative period is unclear. This study investigated the effects of RT, isolated and combined with protein supplementation, on body composition and resting energy expenditure (REE) in the late postoperative period of Roux-en-Y gastric bypass (RYGB). METHODS: This controlled trial involved patients who were 2-7 years postRYGB. Participants were partially matched on body mass index (BMI), age, sex, and years after surgery, and divided into four groups, placebo maltodextrin (control [CON]; n = 17), whey protein supplementation (PRO; n = 18), RT combined with placebo (RTP; n = 13), and RT combined with whey protein supplementation (RTP + PRO; n = 15)-considering the participants who completed the protocol. REE was measured by indirect calorimetry and body composition by multifrequency electrical bioimpedance. RESULTS: Participant characteristics (40.3 ± 8.3 years old; average BMI 29.7 ± 5.3 kg/m CONCLUSION: Combined RT and adequate protein intake via supplementation can increase FFM and SMM in the late postoperative period without changing REE. These associated strategies were effective in improving muscle-related parameters and potentially in improving the patients' physical function.