Even if you lift heavy or light weights for 12 weeks, your body’s short-term hormone spike after each workout doesn’t change—and that means those hormone surges probably aren’t why your muscles get bigger or stronger over time.
Claim Language
Language Strength
definitive
Uses definitive language (causes, prevents, cures)
The claim uses definitive language such as 'does not change' and 'are not a mechanism,' which assert absolute absence of effect rather than suggesting possibility or association.
Context Details
Domain
exercise_science
Population
human
Subject
resistance-trained young men
Action
does not change
Target
the acute post-exercise hormonal response to resistance training
Intervention Details
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.
Evidence from Studies
Supporting (1)
Neither load nor systemic hormones determine resistance training-mediated hypertrophy or strength gains in resistance-trained young men
Even though lifting heavy or light weights made people stronger and bigger, their hormone levels after workouts didn’t predict those gains — meaning hormones aren’t the reason they got stronger or bigger.