Mixed
GLP-1 receptor agonists (semaglutide, tirzepatide) produce significant weight loss (10-21%) but also reduce lean body mass, necessitating resistance training to preserve muscle and performance in physically active individuals.
If you are using GLP-1 agonists like semaglutide or tirzepatide for weight loss, expect to lose both fat and some muscle. To protect your strength and athletic performance, you must incorporate resistance training into your routine. This combination helps offset the lean mass loss associated with these drugs. Do not rely on the medication alone; long-term maintenance requires continuous therapy and lifestyle adherence, as stopping treatment typically leads to weight regain.
Extensive clinical trials have reported reductions in lean body mass while undergoing semaglutide therapy... Including resistance training or regular physical activity in the therapeutic approach may help offset this effect.
Why this rating
Based on multiple meta-analyses and large clinical trials (SURMOUNT, STEP) cited in the text.
Source
NEXT-GENERATION GLP-1 PHARMACOTHERAPY: ADVANCES IN OBESITY TREATMENT WITH CONSIDERATIONS FOR PHYSICAL PERFORMANCE AND POPULATION HEALTH
Bartosz Skorupski et al. · International Journal of Innovative Technologies in Social Science · 2025
DOI 10.31435/ijitss.3(47).2025.3678
More from this paper
- Off-label use of GLP-1 agonists by healthy athletes for aesthetic or performance purposes raises ethical, legal, and safety concerns, including potential classification as doping and inequality in sports access.Good
- Tirzepatide, a dual GLP-1/GIP agonist, may enhance metabolic efficiency and endurance performance by optimizing fat oxidation, delaying glycogen depletion, and improving mitochondrial function.Moderate
Related findings · Mixed
- Bariatric surgery (VSG and RYGB) is the most effective and sustainable treatment for obesity, producing marked and sustained weight loss that non-surgical interventions cannot match.Strong
- Severely protein-deficient diets (2–3% energy) induce lean body mass loss and metabolic imbalance, whereas adequate protein intake (0.66 g/kg/d minimum) is a prerequisite for maintaining muscle, bone, and physiological function.Strong
- For patients with Class III obesity (BMI >39.9 kg/m2), metabolic bariatric surgery (MBS) is significantly more effective than any currently approved medication, with BilioPancreatic Diversion (BPD) showing the highest estimated weight loss.Strong
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