9 THE PERFECT PLANK

With feet hip-width apart and shoulders stacked above wrists, hold a plank position, trying to broaden shoulder blades across back.

STEP 1: Engage the entire core, creating tension throughout trunk so spine is unmoving.

STEP 2: At the same time, breathe into belly and ribcage feeling the movement of respiratory muscles without allowing shape of plank to change.

STEP 3: Hold for 30 seconds to

1 minute, then rest 30 seconds.

Repeat 2 more times.