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In this episode of the Run Smarter Podcast, I sit down with Dr. Keith Barr from the University of California, Davis, to uncover groundbreaking research on tendon health, rehabilitation, and performance. Dr. Barr shares his expertise on tendon tissue engineering, the role of mechanical loading in healing tendinopathies, and how to reverse chronic scar tissue formation. Whether you're a runner struggling with tendon pain or a coach looking to optimize performance, this episode is packed with game-changing insights.
What You'll Learn in This Episode
🔹 Why tendons develop scar tissue – and how stress shielding plays a role in tendinopathy
🔹 How to reverse chronic tendon damage – with the right type of loading strategy
🔹 The difference between tendon stiffness and perceived stiffness – and how it impacts performance and injury risk
🔹 Why isometric exercises are a game-changer – and how to use them effectively in rehab and injury prevention
🔹 The role of hormones in tendon injuries – including how menopause and testosterone affect tendon health
🔹 How to train smarter to avoid tendon injuries – including the optimal way to structure your running volume
Key Takeaways & Actionable Strategies
✅ Target the scar tissue with load – Use isometric holds after a workout to gradually reintroduce load to the weak areas
✅ Don’t rush into plyometrics – Start with long-duration isometric exercises before progressing to slow, heavy strength training
✅ Train twice a day for better tendon adaptation – Splitting your runs into two sessions improves tendon recovery and adaptation
✅ Respect the first few sessions of new training – The first track session, spikes workout, or hill session introduces high jerk forces, increasing injury risk
✅ Consider hormonal factors – Women going through menopause may need to adjust their training due to changes in tendon stiffness and collagen synthesis
Dr. Keith Barr’s Research & Resources
🔹 Follow Keith Barr on BlueSky: Muscle Science
🔹 Read his research paper: Using Load to Improve Tendon Ligament Tissue Engineering and Develop Novel Treatments for Tendinopathy
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MEDICAL & EDUCATIONAL DISCLAIMER
The information provided in the Overcoming Proximal Hamstring Tendinopathy (PHT) Podcast, YouTube channel, associated websites, social media, and other educational content produced by Brodie Sharpe is provided for general educational and informational purposes only. It is not intended to constitute, and should not be relied upon as, individual medical, physiotherapy, diagnostic or treatment advice.
Although Brodie Sharpe is a qualified physiotherapist, consuming this content does not establish a physiotherapist-patient or other healthcare professional-patient relationship. Any discussion of symptoms, diagnoses, rehabilitation strategies, exercises, loading programs, running modification, medications, supplements, injections, medical procedures or other treatment options is general in nature and may not be appropriate for your individual circumstances.
Musculoskeletal pain can have multiple causes, and symptoms that appear consistent with proximal hamstring tendinopathy or another tendon disorder may arise from other conditions. Appropriate assessment, diagnosis and treatment depend upon an individual's medical history, symptoms, examination findings, medications, health conditions, training history and other factors that cannot be adequately assessed through general online content.
Do not use this content as a substitute for assessment, diagnosis or treatment from an appropriately qualified healthcare professional.
Before starting, stopping or substantially modifying an exercise or rehabilitation program, medication, supplement, injection, procedure or other treatment discussed in this content, seek advice from an appropriately qualified healthcare professional who can consider your individual circumstances.
Exercise, rehabilitation and medical treatments carry inherent risks. These may include increased pain, symptom flare-ups, aggravation of an existing condition, new injury, adverse reactions or other complications. Individual responses vary and no particular outcome, improvement, recovery timeframe or return to sport can be guaranteed. If an activity or intervention causes significant, unusual or worsening symptoms, stop and seek appropriate professional advice.
References to research, clinical studies, treatment approaches, products or opinions of guests are provided for educational purposes. Scientific evidence evolves over time, may be incomplete or conflicting, and findings from research populations may not apply to every individual. Discussion of a treatment or product does not necessarily constitute an endorsement or recommendation for its use. Views expressed by podcast guests or other contributors are their own and do not necessarily represent the views of Brodie Sharpe.
To the extent permitted by applicable law, Brodie Sharpe and associated businesses, contractors and contributors accept no liability for loss, injury, damage or adverse outcomes arising from reliance upon or use of this general educational content. Nothing in this disclaimer is intended to exclude, restrict or modify any right, guarantee, remedy or liability that cannot lawfully be excluded, restricted or modified under applicable law.
If you believe you may have a serious injury or medical condition, or you develop severe, rapidly worsening or otherwise concerning symptoms, seek prompt assessment from an appropriately qualified healthcare professional. In an emergency, contact your local emergency service.