The Claim
In healthy adult males, isometric knee extension torque does not significantly differ between seated and supine positions, even though the rectus femoris muscle length changes due to altered hip joint angle, indicating that in vivo muscle force production is not exclusively governed by the muscle's length-tension relationship.
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 healthy guys push with their legs, they're just as strong sitting or lying down—even though one position stretches the muscle more. That means muscle strength isn’t just about how stretched the muscle is.
See the scientific wording
In healthy adult males, isometric knee extension torque does not differ significantly between seated and supine positions, despite changes in rectus femoris muscle length due to hip joint angle, suggesting that muscle force production is not solely determined by length-tension relationships in vivo.
What the research says
1 studyThe study found that men produced about the same knee strength in two different body positions, even though one should have given more muscle advantage, suggesting that muscle length isn't the only thing that matters.
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.