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Anonymous
>>329659 30 second sprint at 90% max effort, 30 second jog.
First time I did it I lasted 4 minutes before collapsing and vomiting. Actually, the first week pretty much went like that.
But it's amazing how fast your anaerobic capacity builds up. Just stick it out. I can now handle 15 cycles of 30 on, 30 off. Though, I admit, I do sometimes take ONE 90-second break about 2/3 through my cycles to lower my heart rate enough to survive the rest of the workout.
There's really no reason to go above 15 cycles when you get there. Just keep trying to ramp up the intensity and work even harder on your sprints instead of trying to go longer.
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