QUESTION:
Why is HIIT better than a long cardio session?
IE:why is it better to do windsprints than to do 30-40 min on an elliptical machine with an elevated heart rate for an extended period of time?
whenever I do HIIT my hip goes bonkers and hurts like a mofo but when I do streadmill, stepmill, stationary bike or elliptical it doesn't bother me as bad.
If I extend the cardio time instead of doing HIIT can I get the same fat burning benefits?