I am : Assuming you are talking about sprinting and walking alternatively for endurance and to improve heart capacity. Jeep walking until you breath better and your body feel right for the sprinting phase. With time your heart will go lower. Also I am assuming you had a good history and physical before starting your exercise program.
Answered 1/1/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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