The Claim
Strength training preserves approximately 0.83 kg more fat-free mass than calorie restriction alone in overweight or obese adults, with a statistically significant effect.
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 overweight or obese adults, strength training results in 0.83 kilograms more preservation of fat-free mass compared to calorie restriction alone.
See the scientific wording
Strength training preserves approximately 0.83 kg more fat-free mass than calorie restriction alone in overweight or obese adults, with a statistically significant effect, suggesting it is a highly effective strategy for muscle preservation.
When muscles are pulled hard during strength training, sensors in the muscle fibers detect the stretch and force, which turns on a molecular switch that tells the cell to build more muscle proteins. This happens even when the body is low on energy from dieting, so the muscle doesn't break down as much.
What the research says
1 studyWhen people who are overweight or obese diet, they lose muscle too—but lifting weights while dieting helps them keep about 0.83 kg more muscle than dieting alone, and this study proves it.
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.