Dynamic stabilizer: Biceps Brachii (short head only)
Mechanics: Compound
Force: Push
Starting position
Get into a push-up position, supporting your body on your hands and knees instead of on your hands and forefeet. Your hands should be a little wider than shoulder width apart.
Execution
Keeping your body straight and your elbows slightly tucked in, inhale as you lower your chest to the floor.
Exhale as you extend your elbows and push your body back up to the starting position.
Repeat.
Comments and tips
Keep your elbows slightly tucked in. This will reduce the pressure on your shoulder joints.
The knee push-up is a brilliant exercise for beginners. Once it becomes easy, graduate to the standard push-up.
The knee push-up is also known as the half push-up.
To make the exercise more challenging, try doing it with one arm.