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.
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.
How training affects cells is determined not only by whether we move at all, but also by how intensely and for how long we do it. A study compared sprint interval training with traditional endurance ...
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