A

Hold the handles of 2 resistance tubes like you did in the partner pull-down (but face away from each other). Bring your hands to shoulder height— elbows pointing behind you, palms facing down—and stagger feet. (If you're solo, anchor the center of one tube to a sturdy object at chest height.)

B

Keeping abs tight, extend arms forward at shoulder level [B]. Return to start and repeat. Do 10 reps.