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"Hamstring injuries are rife in modern sports, but they could be avoided if the athletes did hill training. It doesn’t have to be fast, just enough to make the muscles feel they’ve been working. Balancing the muscles between the front of the thigh and the back is essential to ensure hamstring problems don’t arise. Some athletes seem to be constantly getting over or suffering from these injuries."

Arthur Lydiard 

If you don’t have hills … use stairs! 

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