Photo by: Aaron Richter, R29
Keeping knees above toes, drive your butt back like you're going to sit in chair (bringing your butt down to knee level). Return to the starting position; repeat as many times as you can for 90 seconds.
Photo by: Aaron Richter, R29
Keeping knees above toes, drive your butt back like you're going to sit in chair (bringing your butt down to knee level). Return to the starting position; repeat as many times as you can for 90 seconds.