Quote:
Originally Posted by newtx
A jump rope would be quick and effective. If you can build up to 10 minutes it equals 3 miles of running. It is at least as effective as running sprints IMO.
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Jumping rope is a good addition but I don't think would replace sprints. Sprints offer the forward motion stress factor. Forcing yourself to push harder while launching your body using all four limbs is pretty intense. That and you don't have to focus on clipping your toes.