left hook. boxing

TARGET: delts

EQUIPMENT: body weight

SECONDARY: biceps, triceps, forearms

Stand with your feet shoulder-width apart and your knees slightly bent.
Keep your left hand up to protect your face and your right hand by your chin.
Rotate your hips and pivot on your left foot as you extend your left arm forward in a punching motion.
Twist your torso and engage your core muscles to generate power in the punch.
Snap your arm back to the starting position and repeat for the desired number of repetitions.