ArticleObesity surgery2020
Resting Energy Expenditure and Organ-Tissue Body Composition 5 Years After Bariatric Surgery.
Article in Obesity surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00465829 (Longitudinal Assessment of Bariatric Surgery), which is not on this map. Cited by 29 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Longitudinal Assessment of Bariatric Surgery (LABS-2)
Who cites it
29 citing papers in PubMed, 35 citations in OpenAlex.
- Evaluating Protein Liquid Supplementation for Enhanced Protein Intake and Adherence at Short-Term After Metabolic and Bariatric Surgery: A Pilot Randomized Controlled Trial.Obesity surgery · 2025Trial
- Comparison of Two Diet and Exercise Approaches on Weight Loss and Health Outcomes in Obese Women.International journal of environmental research and public health · 2022Trial
- Sympathomimetic increases resting energy expenditure following bariatric surgery: A randomized controlled clinical trial.Obesity (Silver Spring, Md.) · 2022Trial
- Effect of 2-year caloric restriction on organ and tissue size in nonobese 21- to 50-year-old adults in a randomized clinical trial: the CALERIE study.The American journal of clinical nutrition · 2021Trial
- Trial
- Review
- Effects of Sleeve Gastrectomy and Subsequent Whole-Body Vibration Training on Resting Metabolic Rate and Body Composition: A Pilot Randomized Controlled Trial.Obesity surgery · 2026Article
- Effects of Sleeve Gastrectomy and Subsequent Whole-Body Vibration Training on Resting Metabolic Rate and Body Composition: A Pilot Randomized Controlled Trial.Obesity surgery · 2026Article
- Understanding Impact of Anti-Obesity Medications on Skeletal Muscle Mass Change Is Confounded by Measurement Methods.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026Review
- Multilevel metabolic adaptation to exercise training.Communications medicine · 2026Article
- Accuracy of Body Composition Prediction Equations in Middle-Aged Females with Class II and III Obesity.Obesity surgery · 2026Article
- Case Series: Endoscopic ultrasound-directed transgastric ERCP in liver transplant recipients with Roux-en-Y gastric bypass.Frontiers in transplantation · 2026Article
- Muscle Mass and Strength, Physical Function, and Health-Related Quality of Life After Roux-en-Y Gastric Bypass.Obesity surgery · 2025Article
- Characteristics of changes in bone mineral density and body composition in obesity patients after metabolic and bariatric surgery: A prospective cohort study.Diabetes, obesity & metabolism · 2025Article
- Resting energy expenditure of females mid- to long-term after bariatric surgery: agreement between indirect calorimetry and predictive methods.European journal of clinical nutrition · 2025Article
- Evaluation of the Impact of Functional Hypogonadism in Body Composition and Weight Loss in Men Undergoing Bariatric Surgery.Obesity surgery · 2025Observational
- Metabolic Adaptation and Its Determinants in Adolescents Two Years After Sleeve Gastrectomy.Nutrients · 2024Article
- The Significance of Dual-Energy X-ray Absorptiometry (DXA) Examination in Cushing's Syndrome-A Systematic Review.Diagnostics (Basel, Switzerland) · 2023Review
- Assessment of Physical Activity and Healthy Eating Behaviors Among US Adults Receiving Bariatric Surgery.JAMA network open · 2022Article
- Body Composition, Basal Metabolic Rate and Leptin in Long-Term Weight Regain After Roux-en-Y Gastric Bypass Are Similar to Pre-surgical Obesity.Obesity surgery · 2022Article
Corrections and comments
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Authors and funding
16 authors at 8 institutions in 2 countries.
Funding
Abstract
introductionBariatric surgery-induced weight loss may reduce resting energy expenditure (REE) and fat-free mass (FFM) disproportionately thereby predisposing patients to weight regain and sarcopenia.
methodsWe compared REE and body composition of African-American and Caucasian Roux-en-Y gastric bypass (RYGB) patients after surgery with a group of non-operated controls (CON). REE by indirect calorimetry; skeletal muscle (SM), trunk organs, and brain volumes by MRI; and FFM by DXA were measured at post-surgery visits and compared with CON (N = 84) using linear regression models that adjusted for relevant covariates. Ns in RYGB were 50, 42, and 30 for anthropometry and 39, 27, 17 for MRI body composition at years 1, 2, and 5 after surgery, respectively.
resultsRegression models adjusted for age, weight, height, ethnicity, and sex showed REE differences (RYGB minus CON; mean ± s.e.): year 1 (43.2 ± 34 kcal/day, p = 0.20); year 2 (- 27.9 ± 37.3 kcal/day, p = 0.46); year 5 (114.6 ± 42.3 kcal/day, p = 0.008). Analysis of FFM components showed that RYGB had greater trunk organ mass (~ 0.4 kg) and less SM (~ 1.34 kg) than CON at each visit. REE models adjusted for FFM, SM, trunk organs, and brain mass showed no between-group differences in REE (- 15.9 ± 54.8 kcal/day, p = 0.8; - 46.9 ± 64.9 kcal/day, p = 0.47; 47.7 ± 83.0 kcal/day, p = 0.57, at years 1, 2, and 5, respectively).
conclusionsPost bariatric surgery patients maintain a larger mass of high-metabolic rate trunk organs than non-operated controls of similar anthropometrics. Interpreting REE changes after weight loss requires an accurate understanding of fat-free mass composition at both the organ and tissue levels. CLINICAL
trial registrationLong-term Effects of Bariatric Surgery (LABS-2) NCT00465829.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.