The Claim
In trained young men, short-term high-volume resistance training is associated with a 24% decrease in citrate synthase activity, indicating reduced mitochondrial content, despite a concurrent 23% increase in muscle fiber size, suggesting that mitochondrial volume does not scale proportionally with fiber hypertrophy under these training conditions.
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 young guys who already work out do a lot of high-rep weight training for a short time, their muscles get bigger but their energy-producing parts actually become less dense, meaning bigger muscles don’t always mean more energy factories inside them.
See the scientific wording
High-volume resistance training in trained young men is associated with a 24% decrease in citrate synthase activity, indicating reduced mitochondrial content, despite a 23% increase in muscle fiber size, suggesting that mitochondrial volume does not scale proportionally with fiber hypertrophy during short-term high-volume training.
What the research says
1 studyThe study found that after intense weight training, muscles got bigger but their energy-producing parts didn't keep up, which matches what the claim says.
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.