HOW: Lying on your side, have your elbow straight down from your shoulder and your bottom leg pushing into the ground lifting your hips up to where your body is a straight line. While maintaining this position, bring the top knee up to your chest and your top elbow down to meet it and perform a crunch.
FEEL: You should feel your core muscles working.
COMPENSATION: Don’t let your hips drop down in the plank position.
