SINGLE-LEG JACKKNIFE

Areas trained: STOMACH, SIDES, CORE

Technique

Lie on the floor with arms overhead and legs outstretched. Dynamically raise your left leg, keeping it as straight as possible, as you crunch up to touch your left foot with your right hand. Lower back to the start with control then repeat on the opposite side, alternating sides for each rep.

SAFETY TIP Keep your neck long and try not to hunch your shoulders