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Jonah Rosner | Elite Running Scientist on Instagram: "Most runners are told to stretch their calves and Achilles to run better. The problem is that efficiency does not really come
Swap stretching for strength training to improve your running economy. Stiffening your Achilles can help you run more efficiently, just like a biological carbon plate. Learn how heavy slow calf raises and isometric holds can increase tendon stiffness and lead to a 4% improvement in running economy. Follow our expert advice for a healthier and ...
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