Push off right foot to reverse to start.
Do reps; switch legs; repeat.
Rise so thighs are parallel to ground as you straighten arms at chest level (as shown).
Keeping leg lifted, straighten right arm, then left, coming into a raised push-up position.
Reverse motion to return to plank.
Repeat, alternating lead arms.
Do reps, switching legs at halfway point.
Jump back to right for one rep. Repeat, quickly alternating sides.
Bend knees and crouch until left thigh is parallel to ground, right heel lifted.
Rest chest on left thigh and place fingertips on either side of left foot (as shown).
Keeping fingertips on ground, straighten legs, lowering right heel.
Return to crouch for one rep. Quickly do reps. Switch legs; repeat.
Return to start; repeat.
Do reps.
Power pike
Start in push-up position, feet resting on ball.
Return to start for one rep.
