G.Y.M. Fully engaged plank intervals
FULL ENGAGED PLANK INTERVALS
Start in a prone position with elbows directly under the shoulders. Bring the feet together and tuck the toes in toward the knees.
Press into the elbows to engage the upper core. Tighten the quadriceps (front of the thighs) to raise the knees off the floor.
Raise your body into a plank position and apply light pressure into your little fingers as you look at your hands. Hold this position for 7–10 seconds and relax for 3–5 seconds. Repeat for eight repetitions. Increase repetitions or combine with other core exercises as you progress.