Without equipment
Climber Push Ups:
This core-intensive push up variation will work not only your chest, but really target your triceps and shoulders as well!
To do the Climber Push Up, start in a plank from your forearms. You can set your feet wider apart if needed to create a more stable base. Make sure your body is in a nice straight line from your head to your heels and that your shoulders are stacked over your elbows while on your forearms.
Engage your abs and, keeping your body in a nice straight line, climb one hand at a time up to a plank position from your hands. Place your hands right below your shoulders, but outside your chest as you climb up. Try to wiggle your hips as little as possible as you climb and don’t let your butt go up in the air or your hips sag toward the ground as you climb up.
Then at the top perform a push up. Keep your body in a nice straight line as you drop your chest between your hands and down toward the ground. Press all the way back up.Then climb back down, placing your elbows right below your shoulders. Repeat, climbing back up. Make sure to alternate or switch which hand leads the climb at some point.
Beginners can do the whole thing from their knees or even just drop to their knees for the push up.