Lie down on a flat on ground with your elbows flared out at 45 degrees.
Extend your elbows out until they're almost straightened.
Bend your elbows back down to the floor and repeat.
Hips coming off the ground.
Elbows flared at 90 degrees.
Wrists out of line with forearms.
Place hands just wider than shoulder width in line with the shoulders with hands on a bench.
Push through your hands extending your elbows.
Bend the elbows lowering yourself until your chest almost touches the bench and repeat.
Flaring the elbows out at 90 degrees.
Arching you glutes upwards.
Dropping back and shoulders down too low.