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Originally posted by cheesegrater i'm in reasonably good cardio shape cause i've been running off and on for about 2 months so i'm not gonna start at 4 minutes i'll start at 10. I do 30 second jogging sprinting intervals for the whole 10 minutes? |
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Originally posted by oaktownboy so you do 20 sec sprint, then 10 seec jog then a 4 min cool down and then repeat this process 4 times? |