← The Peter Attia Drive

#296 ‒ Foot health: preventing and treating common injuries, enhancing strength and mobility, picking footwear, and more | Courtney Conley, D.C.

Apr 1, 2024 2h 22m 36 insights
<p><a href="https://peterattiamd.com/courtneyconley/?utm_source=podcast-feed&amp;utm_medium=referral&amp;utm_campaign=240401-pod-courtneyconley&amp;utm_content=240401-pod-courtneyconley-podfeed"> View the Show Notes Page for This Episode</a></p> <p><a href="https://peterattiamd.com/subscribe/?utm_source=podcast-feed&amp;utm_medium=referral&amp;utm_campaign=240401-pod-courtneyconley&amp;utm_content=240401-pod-courtneyconley-podfeed"> Become a Member to Receive Exclusive Content</a></p> <p><a href="https://peterattiamd.com/newsletter/?utm_source=podcast-feed&amp;utm_medium=referral&amp;utm_campaign=240401-pod-courtneyconley&amp;utm_content=240401-pod-courtneyconley-podfeed"> Sign Up to Receive Peter's Weekly Newsletter</a></p> <p>Courtney Conley is an internationally renowned foot and gait specialist. In this episode, Courtney delves into the intricate world of foot anatomy and functionality. She explores the complexities of the foot, discussing its anatomy, common injuries, and the importance of understanding its structure in preventing issues. She covers a range of foot ailments, factors contributing to them, treatment options, and prevention strategies. She delves into the significance of loading, balance, range of motion, and posture, emphasizing the crucial role of strength in preventing both injuries and falls. Additionally, she sheds light on the interconnectedness of the kinetic chain, from the leg muscles down to the foot, and how issues within this chain can cascade downstream, leading to various injuries and pathologies. Additionally, she provides a comprehensive overview of footwear, discussing suitable options for both adults and children to promote foot health and mitigate potential problems.</p> <p><em>In addition to this interview, Courtney also recorded a series of videos to better explain a number of the concepts discussed such as diagnostic tests that are used to determine mobility and strength and the exercises one should perform to improve the outcomes based on the diagnostics. The interview will be available to everyone while the videos from the gym will only be available to paid subscribers (found at the end of the show notes page).</em></p> <p><strong>We discuss:</strong></p> <ul type="disc"> <li>Why Courtney chose to specialize in the foot [3:30];</li> <li>The vital role of foot strength, function, and health in human movement and well-being [6:15];</li> <li>Anatomy of the rear foot and midfoot [10:15];</li> <li>The development of flat feet, the impact of footwear, and the benefits of going barefoot [19:45];</li> <li>Anatomy of the forefoot, common injuries, and why most injuries occur in the forefoot [23:15];</li> <li>Foot musculature and its role in maintaining foot stability and preventing deformities like bunions and hammer toes [30:15];</li> <li>The intrinsic musculature of the foot, plantar fasciitis, footwear, and more [39:00];</li> <li>Plantar fasciitis: diagnosis, causes, and treatment [51:30];</li> <li>Posterior leg muscles: strength assessment methods, role in ACL injuries, and more [59:15];</li> <li>Lateral and medial muscles: ankle stability, arch support, big toe stabilization, and exercises to strengthen and prevent injuries [1:04:15];</li> <li>Importance of strength of lower leg muscles for gait and preventing shin splints, stress injuries, and more [1:08:15];</li> <li>Tendinopathies and other common pathologies related to the anterior and lateral compartments of the foot [1:13:00];</li> <li>The importance of midfoot integrity, ankle dorsiflexion, and a discussion of gait alterations [1:19:45];</li> <li>Proximal stability and its implications for posture and movement patterns [1:27:00];</li> <li>The age-related decline in foot sensation and strength [1:32:45];</li> <li>Common toe injuries, treatment, and how to prevent further progression of the injury [1:36:30];</li> <li>Preventing falls and managing arthritis with proactive foot care and exercises [1:46:45];</li> <li>Footwear: advice for picking shoes that promote foot health [1:54:45];</li> <li>Footwear for runners [2:05:30];</li> <li>The importance of prioritizing footwear that promotes natural foot movement and strength while considering individual comfort and foot health needs [2:09:30]; and</li> <li>More.</li> </ul> <p>Connect With Peter on <a href="https://twitter.com/PeterAttiaMD">Twitter</a>, <a href="https://www.instagram.com/peterattiamd/">Instagram</a>, <a href="https://www.facebook.com/peterattiamd/">Facebook</a> and <a href="https://www.youtube.com/channel/UC8kGsMa0LygSX9nkBcBH1Sg">YouTube</a></p>
Actionable Insights

1. Prioritize Toe Strength for Falls

Focus on strengthening your toes, as toe weakness is identified as the single biggest predictor of falls in the elderly. This is a crucial area for fall prevention and overall quality of life.

2. Assess Anterior Fall Envelope

Measure your anterior fall envelope by leaning forward from the ankles towards a wall; the distance from your umbilicus to the wall should be 4.5 inches or more, indicating sufficient toe strength and balance to prevent falls.

3. Enhance Foot Sensory Input

Engage in regular foot exercise to increase circulation to sensory nerves, promoting nerve fiber branching, improved sensation, and reduced pain, which is imperative for walking upright and preventing falls.

4. Practice Dynamic Posture Control

Focus on developing control and variability in movement and posture, rather than striving for a single ‘perfect’ posture, to enhance adaptability and prevent being stuck in one position.

5. Strengthen Foot Regularly

Engage in regular foot strengthening exercises to maintain the foot’s natural capacity to handle load, prevent weakness, and ensure optimal function throughout life, as ‘if you don’t use it, you will lose it’.

6. Wear Wide Toe Box Shoes

Choose shoes with a wide toe box that allows your toes to splay naturally, as this is non-negotiable for foot health and comfort. Verify width by standing on the shoe’s factory insert; if your forefoot is wider, the shoe is too narrow.

7. Choose Zero Drop Footwear

Opt for ‘zero drop’ footwear, where the heel and toe sit on the same plane, as this aligns with the natural design of the human foot for walking and movement.

8. Encourage Kids Barefoot Time

Allow children to spend time barefoot on various surfaces like sand and grass, even for short periods, to promote natural foot development and enhance sensory input.

9. Select Kids’ Wide Toe Box Shoes

Ensure children wear shoes with a wide toe box that allows their toes to splay naturally, especially if there’s a family history of bunions, to support proper foot development.

10. Use Isometrics for Pain Relief

Perform isometric exercises when experiencing pain, as they are safe and can decrease cortical inhibition, effectively acting as ‘pain meds’ by allowing the brain to ’let off the brake’ on movement.

11. Test Big Toe Strength

Use a toe dynamometer to test big toe strength, aiming to produce 10% of your body weight by pressing the big toe down without lifting the heel or hammering other toes.

12. Test Toes 2-5 Strength

Test the strength of toes 2-5 using a toe dynamometer, aiming to produce 7-8% of your body weight by pressing them down without lifting the heel or hammering.

13. Assess Ankle Dorsiflexion

Aim for approximately 35 degrees of ankle dorsiflexion mobility, as 10-15 degrees is the bare minimum for walking, and more is needed for functional movements like sitting or climbing stairs.

14. Differentiate Mobility vs. Stability

To determine if limited mobility is due to a physical restriction or neurological inhibition, test a deep squat both unassisted and while holding onto support; if holding on significantly improves the squat, the primary issue is likely a lack of stability, not stiffness.

15. Train Proximal Stability

Focus on training proximal stability by ensuring you can stack your rib cage over your pelvis and practice 360-degree diaphragmatic breathing, as this directly impacts foot mechanics and overall body control.

16. Treat Chronic Plantar Fasciosis with Load

For chronic plantar fasciosis, prioritize strengthening and loading the foot tissue, rather than deloading, to promote healing and build the necessary capacity to handle repetitive stress.

17. Use Orthotics Temporarily for Acute Pain

In cases of acute plantar fasciitis, orthotics can be temporarily beneficial as a load modifier to offload the heel and reduce strain, but they should not be a long-term solution.

18. Plan Orthotic Exit Strategy

If using orthotics for acute plantar fasciitis, plan to phase them out within two weeks to a year, simultaneously engaging in foot strengthening exercises to prevent long-term reliance and build intrinsic foot capacity.

19. Address Mid-Tendon Achilles Tendinopathy

For mid-tendon Achilles tendinopathy, understand that discomfort may persist for a long time; focus on continued loading and exercise, even with some pain (e.g., up to 5/10), rather than complete rest, to promote healing.

20. Manage Insertional Achilles Tendinopathy

For insertional Achilles tendinopathy, ensure calf exercises emphasize high end-range plantar flexion to appropriately load the tendon, and minimize deep stretching, as this specific type of injury does not respond well to it.

21. Treat Functional Hallux Limitus

For functional hallux limitus (limited big toe motion due to muscular weakness, not rigid arthritis), focus on strengthening muscles like peroneus longus and actively working on big toe range of motion to restore function and prevent progression.

22. Avoid Carbon Plates for Hallux Limitus

Do not rely on carbon plates or very stiff shoes for functional hallux limitus, as these prevent big toe movement, leading to further weakness and potentially irreversible loss of function.

23. Compensate for Hallux Rigidus

If diagnosed with hallux rigidus (arthritic big toe with lost range of motion), focus on training compensatory movements in the ankle, knee, and hip (e.g., knee and hip extension drills) to maintain overall gait function and prevent issues up the kinetic chain.

24. Practice Toe Yoga

Incorporate ’toe yoga’ exercises, such as lifting only the big toe, lifting only the four smaller toes, or lifting and spreading all toes, to improve intrinsic foot muscle activation and brain-foot connection.

25. Introduce Toe Spacers Gradually

Begin using toe spacers gradually, starting with just five minutes a day while barefoot in your house, and slowly increase wear time as your feet adapt to prevent discomfort and promote natural toe splay.

26. Customize Toe Spacers for Bunions

For individuals with bunions or specific needs, consider adding cork or a similar material between the first and second toe within toe spacers to provide increased resistance and support for realignment.

27. Combine Footwear and Exercise

For optimal foot health and strength, combine wearing functional footwear (wide toe box, zero drop) with dedicated foot strengthening exercises to maximize benefits.

28. Consider Shoe Sole Thickness

Be aware that shoes with more stack height (cushion) can alter and speed up the rate of pronation; if wearing such shoes, ensure you have very strong intrinsic foot and extrinsic lower leg muscles to control this movement.

29. Choose Thinner Soled Shoes

Opt for thinner-soled shoes that allow you to feel the ground, as this sensory feedback helps with natural shock absorption and provides cues to prevent heavy landing, leveraging the foot’s inherent design.

30. Compensate for Fashionable Footwear

If choosing to wear fashionable but less functional shoes (e.g., high heels, pointy-toed shoes), commit to dedicated foot strengthening and mobility work before and after wear to mitigate potential negative effects and maintain foot health.

31. Use Performance Shoes Wisely

Reserve specialized ‘super shoes’ or performance footwear for specific activities like speed workouts, and prioritize foundational foot strengthening and training in more functional shoes for daily use to avoid injury.

32. Avoid Overstriding While Running

When running, focus on landing your foot close to your body’s center of mass and avoid overstriding (landing with your foot far in front), as overstriding increases ground reaction forces on the knee, hip, and low back.

33. Consider Midfoot/Forefoot Running Strike

Consider transitioning to a midfoot or forefoot strike when running to shift load from the knee, hip, and back into the foot and calf, but ensure you have adequate foot and calf capacity before making this change.

34. Maintain Ankle Mobility with Heel Drop Shoes

If wearing shoes with a heel-to-toe drop, actively perform regular ankle mobility exercises and plantar flexion strengthening when out of the shoes to counteract the shortening of the posterior compartment and maintain overall foot and ankle health.

35. Watch Video for Foot Anatomy

Consider watching the video version of this podcast episode, especially when discussing foot anatomy and pathology, as visual aids make it easier to understand complex biomechanics, such as how bunions develop.

36. Join Premium Membership

To deepen your knowledge of longevity science, consider joining the premium membership at peteratiyahmd.com/subscribe for exclusive content, benefits, and detailed show notes.