“Isometrics are a powerful training tool, especially for runners,” says Speer. “Holding positions for 30 to 60 seconds, such as lunges and single-leg balances help strengthen muscles, connective ...
If you’ve vowed to start strength training but can’t seem to make a routine stick, you’re not alone. Nathaniel Serrurier, CSCS, a personal trainer and doctoral student at Columbia University’s RunLab, ...
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