The Claim
Multi-joint and single-joint resistance exercises result in comparable increases in elbow flexor muscle thickness (hypertrophy) among untrained young men following a 10-week training period, with no statistically significant difference observed between the two exercise modalities.
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 men who haven't trained before do either multi-joint exercises (like curls) or single-joint exercises (like bicep curls) for 10 weeks, their arm muscles grow by about the same amount - there's no meaningful difference between the two types of workouts.
See the scientific wording
Multi-joint and single-joint resistance exercises produce similar increases in elbow flexor muscle thickness (hypertrophy) in untrained young men after 10 weeks of training, with no statistically significant difference between exercise types
What the research says
1 studyStudy: Single vs. Multi-Joint Resistance Exercises: Effects on Muscle Strength and Hypertrophy
The study compared two types of arm exercises - multi-joint (like lat pulldowns) and single-joint (like bicep curls) - and found both groups gained almost the same amount of muscle thickness (about 6%) with no meaningful difference between them. This proves the claim is correct.
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.