Based on these skills, lacrosse players must develop joint stability and connective tissue strength through the ankle, knee and hip (to support and stabilize cutting, decelerating, attacking, defending and checking), core strength and rotary speed (to support the lower lumber spine during the passing and shooting motions, and the ability to create torque through separation of hips and hands to generate stick speed), posterior chain strength and power (to develop strength through glutes, hips, and legs), reactive ability and quickness (for starting speed, attacking and defensive ability), and grip/forearm strength.