A great workout for runners or anyone looking to improve speed and agility. Modifications are provided. No equipment needed.

MEDICAL DISCLAIMER:
You should consult your physician or other health care professional before starting this or any other fitness program to determine if it is right for your needs. Do not start this fitness program if your physician or health care provider advises against it. If you experience faintness, dizziness, pain or shortness of breath at any time while exercising you should stop immediately.
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