24/09/2025                                                                            
                                    
                                                                            
                                            Patellar Tendinopathy holding you back? 🦵🔥
Research shows high-load isometrics aren’t just pain relief, they’re a game-changer for tendon health.
Here’s why 👇
✅ Isometrics can provide short-term pain relief (Rio 2015)
✅ Repeated, structured loading can improve tendon stiffness and tendon material properties (Radovanović 2022; Bohm 2015).
✅ By restoring more appropriate muscle–tendon balance (Domroes 2024; Weidlich 2024), they likely reduce some of the mechanical risk factors that contribute to overload or recurrence.
Protocol Snapshot:
⚡️ 90% MVC or 4.5–6.5% tendon strain
⏱️ 3s hold / 3s rest
🔁 4 reps × 5 sets
😴 2 min rest
🗓️ 3× per week
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📚References
Arampatzis, A., Karamanidis, K., De Monte, G., & Stafilidis, S. (2007). Differences between measured and resultant joint moments during voluntary and artificially elicited isometric knee extension contractions. Clinical Biomechanics, 22(6), 595–601.
Bohm, S., Mersmann, F., & Arampatzis, A. (2015). Human tendon adaptation in response to mechanical loading: a systematic review and meta-analysis of exercise intervention studies on healthy adults. Sports Medicine, 45(12), 1575–1595.
Bohm, S., Mersmann, F., & Arampatzis, A. (2014). Functional adaptation of human tendons to mechanical loading: a systematic review and meta-analysis of exercise intervention studies on healthy adults. Journal of Biomechanics, 47(17), 3543–3551.
Domröse, R., Weidlich, D., Bohm, S., & Mersmann, F. (2024). Effects of high-load isometric exercise on patellar tendon properties and quadriceps function in athletes with patellar tendinopathy. Scandinavian Journal of Medicine & Science in Sports, 34(2), 189–201.
Mersmann, F., Bohm, S., & Arampatzis, A. (2017). Imbalances in the development of muscle and tendon as risk factor for tendinopathies in youth athletes: A review of current evidence and concepts of prevention. Frontiers in Physiology, 8, 987.
Mersmann, F., Bohm, S., & Arampatzis, A. (2021). Tendon adaptation to mechanical loading in youth. Sports Orthopaedics and Traumatology, 37(1), 1–9.
Mersmann, F., Weidlich, D., Bohm, S., & Arampatzis, A. (2023). The relevance of muscle–tendon imbalance for the development of tendinopathies in athletes. Journal of Experimental Orthopaedics, 10(1), 23.
Radovanović, G., Mersmann, F., Bohm, S., & Arampatzis, A. (2022). Adaptation of tendons to loading: Mechanobiological principles and clinical implications. International Journal of Molecular Sciences, 23(4), 2059.
Rio, E., Kidgell, D., Purdam, C., Gaida, J., Moseley, G. L., Pearce, A. J., & Cook, J. (2015). Isometric exercise induces analgesia and reduces inhibition in patellar tendinopathy. British Journal of Sports Medicine, 49(19), 1277–1283.
Weidlich, D., Domröse, R., Mersmann, F., Bohm, S., & Arampatzis, A. (2024). Individualized tendon strain in isometric loading protocols: Implications for effective and safe tendon adaptation. Frontiers in Sports and Active Living, 6, 1367283.