The Claim
During submaximal isometric plantarflexion, external foot rotation (toes-out) increases medial gastrocnemius subtendon elongation relative to the lateral gastrocnemius subtendon, while internal foot rotation (toes-in) reverses this pattern, indicating that foot orientation alters mechanical strain distribution across specific tendon regions.
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.
Changing the direction your toes point while doing a calf exercise changes how much different parts of your calf tendon stretch. Pointing your toes outward stretches the inner part of the tendon more, while pointing them inward stretches the outer part more.
See the scientific wording
During submaximal isometric plantarflexion, externally rotating the foot (toes-out) is associated with greater elongation of the medial gastrocnemius subtendon relative to the lateral gastrocnemius subtendon, whereas internally rotating the foot (toes-in) produces the opposite pattern of differential elongation between the two muscle groups, demonstrating that foot orientation shifts mechanical strain across distinct tendon regions.
What the research says
1 studyChanging the direction your toes point while pushing off changes how much different parts of your Achilles tendon stretch. Pointing them out stretches the inner part more, while pointing them in stretches the outer part more.
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.