The Claim
During high-intensity plantarflexion, internally rotating the foot (toes-in) results in smaller relative non-uniform motions within the Achilles tendon compared to externally rotating the foot (toes-out), indicating that foot orientation modulates the spatial distribution of tendon displacement and may alter internal shear stress patterns.
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 you push off with your feet during exercise, turning your toes inward instead of outward changes how your Achilles tendon stretches and slides inside your leg. This shift in foot position might change the internal pressure and sliding forces on the tendon during hard movements.
See the scientific wording
At higher contraction intensities, internally rotating the foot (toes-in) during plantarflexion is associated with smaller relative non-uniform motions within the Achilles tendon compared to externally rotating the foot (toes-out), suggesting that foot orientation modulates the spatial distribution of tendon displacement during forceful contractions, potentially altering internal shear stress patterns.
What the research says
1 studyTurning your toes inward while pushing down with your feet makes the Achilles tendon move more evenly compared to turning them outward, especially when pushing harder.
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.