The Claim
Resistance training induces a reallocation of muscle mass characterized by hypertrophy in targeted muscle groups and concurrent atrophy in untargeted muscle groups, a phenomenon that is exacerbated by insufficient dietary energy and protein intake.
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.
When you do strength training while not eating enough calories or protein, your body might build muscle in the areas you're working while actually shrinking muscle in the areas you're not. It's like your body is shifting resources from one place to another to cope with the stress and low fuel.
See the scientific wording
Muscle mass reallocation occurs during resistance training, where hypertrophy in targeted muscles is associated with atrophy in untargeted muscles, particularly under conditions of limited energy and protein availability.
What the research says
1 studyWhen you lift weights, your body prioritizes growing the muscles you work, sometimes shrinking nearby muscles you don't use, especially if you aren't eating enough food or protein.
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.