Experts share the best types of interval training to help you improve both as a long-distance runner and an all-around athlete.
Most solid training plans include a weekly speed workout, often in the form of intervals. But the length of those intervals usually depends on your race distance, training goals, and fitness level.
High-intensity interval training has surprising benefits for fitness and physical power, but don’t stay seated the rest of the day. By Gretchen Reynolds A mere four seconds of all-out exercise, ...
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