The Claim
People with more slow-twitch muscles have to do more reps and lift more total weight to get the same muscle growth as people with more fast-twitch muscles, even when both train until exhaustion.
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.
People with more slow-twitch muscles have to do more reps and lift more total weight to get the same muscle growth as people with more fast-twitch muscles, even when both train until exhaustion.
See the scientific wording
Slow-typology individuals require significantly higher total training volume (measured in repetitions × load) to achieve the same muscle hypertrophy and strength gains as fast-typology individuals during resistance training to failure at 60% 1RM.
What the research says
1 studyStudy: Can muscle typology explain the inter‐individual variability in resistance training adaptations?
People with more slow-twitch muscles had to do more reps and sets to get as strong and muscular as people with more fast-twitch muscles—even when both groups trained the same way and pushed to exhaustion.
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.