Sprint and core workout not for the soft at heart
Sprinting is a great way to improve cardiovascular, agility and build a leaner tighter body. This sprint and core workout is a tough workout and should only be done if your in really good to great shape. If you’re not at this time, you can jog through this workout and build up to sprinting. This should be done 2 days a week.
Disclaimer: See your physician before starting any exercise or nutrition program. You must have a complete physical examination if you are sedentary, if you have high cholesterol, high blood pressure, or diabetes, if you are overweight, or if you are over 30 years old.