The cross knee strike builds strength and power through the hips and core.
Instructions
Stand with your feet slightly wider than shoulder-width apart, knees slightly bent, and arms lifted and bent in front of your face.
Transfer all of your body weight onto one leg, brace your core, and draw your other knee towards the opposite shoulder as high as possible. Pause and return to start.
Trainer’s Tips
Pull your shoulders back and keep your chest up throughout the exercise. Avoid letting your shoulders round forward.
The exercise should be dominated by the twisting motion. Make sure the power comes from your core, not your leg.