The Claim
In young, healthy men undergoing 10 days of 40% energy restriction, unilateral resistance exercise increases muscle protein synthesis in the trained leg relative to the untrained leg, irrespective of protein intake level.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In young, healthy men on a reduced-calorie diet for 10 days, lifting weights with one leg increases muscle protein synthesis in that leg compared to the other leg, no matter how much protein they consume.
See the scientific wording
In young, healthy men, resistance exercise performed unilaterally during 10 days of 40% energy restriction increases muscle protein synthesis in the trained leg compared to the untrained leg, regardless of protein intake level, indicating that mechanical loading can locally enhance anabolic signaling during energy deficit.
When a muscle is stretched and contracted under load during a low-calorie diet, the physical force triggers a chain reaction inside the muscle cells that turns on the machinery for building new proteins, even when the body has little energy available.
What the research says
1 studyWhen guys on a low-calorie diet lifted weights with one leg, that leg made more muscle protein than the other leg that didn’t lift — even if they ate less protein. Exercise locally tells muscles to build even when calories are low.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.