Sarcopenia Indicators After Bariatric Surgery
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Obesity, Sarcopenia, Bariatric Surgery. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Longitudinal Evaluation Of Sarkopenia-Related Parameters After Bariatric Surgery
Overview
This prospective observational study aims to evaluate longitudinal changes in sarcopenia-related parameters in patients undergoing bariatric surgery. Obesity and rapid weight loss following bariatric surgery may lead to changes in muscle mass, muscle strength, and physical performance, which are important components of sarcopenia. Participants will be evaluated before bariatric surgery and during postoperative follow-up visits. Muscle thickness will be assessed using ultrasonography of the femoral muscles. Muscle strength and physical performance will be evaluated using handgrip strength, the 5-meter walk test, and the five-times sit-to-stand test. The study aims to investigate the effects of bariatric surgery on muscle function and physical performance over time and to contribute to the early identification of sarcopenia risk in this patient population.
Primary outcome measures
- Change in Femoral Muscle Thickness [Time frame: Preoperative baseline, postoperative 1st month, 3rd month, 6th month, and 12th month assessments]
Secondary outcome measures (2)
- Change in Handgrip Strength [Time frame: Preoperative baseline, postoperative 1st month, 3rd month, 6th month, and 12th month assessments]
- Change in Five-Times Sit-to-Stand Test Performance [Time frame: Preoperative baseline, postoperative 1st month, 3rd month, 6th month, and 12th month assessments]
Eligibility criteria
Inclusion criteria
- Adults aged 18 years and older
- Patients scheduled to undergo bariatric surgery
- Ability to participate in physical performance tests
- Ability to provide written informed consent
Exclusion criteria
- Presence of neurological or musculoskeletal disorders affecting muscle strength or physical performance
- Severe cardiopulmonary disease limiting physical activity
- Active malignancy
- Pregnancy
- Inability to complete study assessments
- Refusal to participate in the study
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Turkey (Türkiye) · 1 center
- Kanuni Sultan Suleyman Education and Research Hospital — Istanbul
Identifiers
NCT: NCT07717333 · BS-SARC-2026