Suspended plank with Knee Tuck - advanced planks - image - Women's Health & Fitness

Suspended plank with crunch

How to
a.    Extend the straps and place your feet in the foot loops. Walk your body out until it is completely extended in a plank position.
b.    Keep your hips in line with your shoulders.
c.    Go into a straight-arm plank and engage your core.
d.    Bring your knees towards your chest and return to the back – repeat this.
e.    Build up your strength by focusing on technique, not speed.
f.    Alternate these with single-knee tucks in a running motion, keeping your hips up and body straight at all times; don’t let your back sag or drop your hips.