Just because your muscles get bigger from lifting weights doesn't mean you'll get much stronger — the two don't really go hand in hand.
Scientific Claim
Changes in muscle size and strength from resistance training are poorly related to each other, indicating that gains in muscle mass do not reliably predict gains in strength.
Original Statement
“There is negligible shared variance between RET-induced increases in muscle size and strength.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The study measured two variables and reported correlation (shared variance), so 'negligible shared variance' is an accurate descriptive statement. Causal language is inappropriate here.
Evidence from Studies
Supporting (1)
Resistance training load does not determine resistance training-induced hypertrophy across upper and lower limbs in healthy young males.
Even when people’s muscles get bigger from lifting weights, their strength doesn’t always increase the same way — sometimes muscles grow a lot but strength doesn’t, and vice versa, meaning bigger muscles don’t always mean stronger.