Run 5 K…BUT, run hard for 90 seconds, rest by walking for 30 seconds. Compare your time to times when you have run for the entire 5 K.
Post your time to comments.
“AB”-ril Workout #21:
Perform after you have completed the warmup or at the conclusion of your workout.
50 use Good Mornings (broomstick, barbell, backpack, etc. for weight)