Finish the Women's Health+ Ultimate HIIT Challenge strong with this 20-minute upper body bodyweight workout. Today's program ... Then, perform the second exercise for 45 seconds.

Set up interval training workouts the right way with these expert tips. But instead of putting together a 30-minute, non-stop workout, break up your program into shorter all-out intervals with ...

But, we wouldn’t judge if they were enough to put you off a HIIT workout ... and it's going to take you 30 minutes to complete. There's no repeats in this workout, once you've done the exercise ...