The Claim
In young, weight-trained males, two weeks of daily heavy strength training increases 24-hour urinary excretion of 3-methylhistidine by 21%, indicating elevated skeletal muscle protein breakdown during intense overload.
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 lift weights do super intense training every day for two weeks, their bodies show signs of breaking down more muscle, based on a specific waste product in their pee.
See the scientific wording
In young, weight-trained males, 2 weeks of daily heavy strength training increases 24-hour urinary excretion of 3-methylhistidine by 21%, suggesting elevated skeletal muscle protein breakdown during intense overload.
What the research says
1 studyThe study found that intense training for two weeks increased a marker of muscle breakdown in urine by exactly 21%, just like 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.