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OK, with all the talk of interval training lately I dicided to go out and do some sprints today. Now I would say I am in decent shape and do about 10-15 miles of road work (jogging) a week, but havent done much high intensity cardio of late. Anyway, I put on my polar heart rate monitor and proceeded to do tabata intervals of sprints. By the second interval my heart rate was at 93%. Is it dangerous or counterproductive to train in this range (even if only for 4 minutes)? I know that the standard thought is to stay within the 65-85% range, but with HIIT I have a hard time staying that low, I can stay 80-85% just jogging. Now this is according to a cheap HRM so I may have to take the data with a grain of salt.
And I dont want this to turn into an endurance vs interval thread.
thanks
ES
And I dont want this to turn into an endurance vs interval thread.
thanks
ES