ArticleObesity surgery2021
Physical Activity, Sedentary Behavior, and Sleep Before and After Bariatric Surgery and Associations with Weight Loss Outcome.
Article in Obesity surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Sleep and Its Impact on the Success of Weight Loss Interventions in Adults With Excess Weight: A Systematic Review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026Pooled it
- Expert-based physical activity guidelines for metabolic and bariatric surgery patients: a systematic review of randomized controlled trials.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2025Pooled it
- The magnitude and progress of lean body mass, fat-free mass, and skeletal muscle mass loss following bariatric surgery: A systematic review and meta-analysis.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2022Pooled it
- Patients' views and experiences of live supervised tele-exercise classes following bariatric surgery during the COVID-19 pandemic: The BARI-LIFESTYLE qualitative study.Clinical obesity · 2022Trial
- Chronodisruption as an Emerging Determinant of Weight Loss Trajectories after Metabolic Bariatric Surgery: A Scoping Review.Obesity surgery · 2026Article
- Preoperative 24-hour movement behaviors and early weight loss after metabolic bariatric surgery: a compositional analysis.International journal of obesity (2005) · 2026Article
- Effects of Bariatric Surgery on Sleep Disorder Symptoms and Sleep Quality.Obesity surgery · 2025Article
- Impact of Laparoscopic Sleeve Gastrectomy on Fatigue in Obese Patients.Journal of clinical medicine · 2024Article
- Associations of weather and air pollution with objective physical activity and sedentary time before and after bariatric surgery: a secondary analysis of a prospective cohort study.Environmental research communications · 2024Article
- Short sleep duration is associated with higher risk of central obesity in adults: A systematic review and meta-analysis of prospective cohort studies.Obesity science & practice · 2024Review
- Levels of Physical Activity, Enjoyment, Self-Efficacy for Exercise, and Social Support Before and After Metabolic and Bariatric Surgery: a Longitudinal Prospective Observational Study.Obesity surgery · 2023Observational
- Associations Between Changes in Activity and Dietary Behaviors after Metabolic and Bariatric Surgery.Obesity surgery · 2023Article
- Changes in Fat-Free Mass, Protein Intake and Habitual Physical Activity Following Roux-en-Y Gastric Bypass Surgery: A Prospective Study.Obesity surgery · 2023Article
- The Need for Objective Physical Activity Measurements in Routine Bariatric Care.Obesity surgery · 2022Article
- Physical activity, patient-reported symptoms, and clinical events: Insights into postprocedural recovery from personal digital devices.Cardiovascular digital health journal · 2021Article
Corrections and comments
- Erratum issued
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePhysical activity, sedentary behavior, and sleep have been linked to the likelihood of maintaining healthy body weight. This study aimed to determine objectively measured movement behaviors before and up to 18 months after bariatric surgery and to investigate whether preoperative levels of these movement behaviors and potential changes of these behaviors were associated with changes in body weight and boy composition. MATERIALS AND
methodsAccelerometer determined total physical activity, moderate-to-vigorous physical activity (MVPA), light physical activity, sedentary behavior, and sleep (for six consecutive days and seven nights) were assessed approximately 3 months and 1-2 weeks before surgery as well as 6 and 18 months after surgery (n = 41). Body weight and body composition (waist circumference, fat mass, and fat-free mass) were determined at each visit.
resultsMean weight loss 18 months after surgery was 42.0 ± 1.9 kg. There were no pre- to postoperative improvements in physical activity, sedentary behavior, or sleep. However, greater increases in levels of total physical activity and time spent in MVPA from 3 months before to 6 months after surgery predicted better weight loss and larger reductions in fat mass and waist circumference. Unexpectedly, a lower level of physical activity and a higher level of sedentary behavior before surgery predicted better weight loss outcomes.
conclusionObjectively measured movement behaviors do not improve after bariatric surgery despite a substantial weight loss. However, increasing total physical activity and/or more time spent in MVPA after surgery may increase weight loss and lead to favorable changes in body composition.
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Registered trials
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