The Claim
Resistance exercise preserves appendicular lean mass during short-term energy restriction in young men, with the exercised leg losing 0.1 kg versus 0.4 kg in the rested leg, regardless 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.
During short-term calorie restriction, young men who perform resistance exercise lose less muscle mass in their exercised legs (0.1 kg) compared to their rested legs (0.4 kg), regardless of how much protein they consume.
See the scientific wording
Resistance exercise preserves appendicular lean mass during short-term energy restriction in young men, with the exercised leg losing 0.1 kg versus 0.4 kg in the rested leg, regardless of protein intake level.
When a person does resistance exercise, the force on the muscle triggers signals that keep the muscle-building machinery active, even when the body is low on energy. This keeps new muscle proteins being made, so the muscle doesn't shrink. Without exercise, low energy shuts down muscle building, and muscle mass drops.
What the research says
1 studyWhen people lose weight quickly, one leg that did weight training lost much less muscle than the other leg that didn’t move — even if they ate less protein. Exercise protected the muscle.
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.