The Foot Core
Intrinsic foot muscles play a crucial role in supporting the medial longitudinal arch, providing the foot stability and flexibility for shock absorption. This post is a brief introduction to "The Foot Core', also known as the intrinsic foot muscles.
The foot core is described as having four layers, which all work together to support the foot.
• Foot Core Layer 1: abductor hallucis, flexor digitorum brevis, abductor digiti minimi
• Foot Core Layer 2: quadratus plantae, lumbricals
• Foot Core Layer 3: flexor digiti minimi, adductor hallucis oblique head, adductor hallucis transverse head, flexor hallucis brevis
• Foot Core Layer 4: dorsal interossei, extensor digitorum brevis.
For a deep look into the importance of 'The Foot Core' check out this paper - The foot core system: a new paradigm for understanding intrinsic foot muscle function.
More to Explore
Fraser, J.J., Feger, M.A., Hertel, J. (2016). Midfoot and forefoot involvement in lateral ankle sprains and chronic instability. Part 1: Anatomy and Biomechanics. Int J Sports Phys Ther.
Fraser, J.J., Feger, M.A., Hertel, J. (2016). Clinical commentary on midfoot and forefoot involvement in lateral ankle sprains and chronic ankle instability. Part 2 Clinical Considerations. Int J Sports Phys Ther.
McKeon, P.O., Fourchet, F. (2015). Freeing the foot: integrating the foot core system into rehabilitation for lower extremity injuries. Clin Sports Med.
McKeon, P.O., Hertel, J., Bramble, D., Davis, I. (2015). The foot core system: a new paradigm for understanding intrinsic foot muscle function. Br J Sports Med.
Sulowska, I., Oleksy, Ł, Mika, A., Bylina, D., & Sołtan, J. (2016). The Influence of Plantar Short Foot Muscle Exercises on Foot Posture and Fundamental Movement Patterns in Long-Distance Runners, a Non-Randomized, Non-Blinded Clinical Trial. PLoS ONE. (Open Access)