Adapted from Daniels’ Running Formula , 2nd edition ...

Adapted from Daniels’ Running Formula, 2nd edition (Champaign: Human Kinetics, 2005), pp. 121-129. Level 4: Interval Training Level 4: Interval Train ing ing By Jack Daniels, Ph.D. Of all workout types, interval training takes on the greatest number of possible meanings, and it wouldn’t ................
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