S2: Side plank on knees
Key instructions
Side plank position on the floor/mat:
Hold the position on your left or right forearm with your back and knees straight (tighten your core and tuck your buttocks in).
If this position is uncomfortable with both knees on the floor, bend your top knee and place your top foot on the floor (see video).
Sets x reps
2x30 sec per side
Rest between sets: 30 sec to 1 min 30
