Plank Tuck: Start in a plank with toes on a bench or box that's about 2 feet high. Bring right knee to chest, then return to start. Bring right knee to right elbow (as shown), and return to start. Repeat on opposite side. Continue for 1 minute. works shoulders, lower back, abs, obliques
Leg kick into single leg pike press Start on all fours, hands and knees shoulder-width, toes tucked. Lift hips to come into Downward Dog; lift right leg up and back. Move body forward and down into plank with leg raised; bend right knee. Bring it forward toward chest, out to side, then forward to meet right elbow. Straighten leg, return to Downward Dog; that’s 1 rep. Do 10 reps; switch sides and repeat.
Core Work: Twisted BOSU Plank