Use a pillow/towel and place dumbbell on top of it. When sliding dumbbell over, grasp it around the handle, and press it into the floor (don’t lift it). The towel/pillow will help it glide, but if you lift the dumbbell it will fall off midway. Press it gently into the floor and really engage your core throughout the drag.
How To Do It
A. Come into pushup position, from the toes or knees. Place sandbag or weight on your right side, next to and in line with your hand. Keep hands in line with your shoulders and eyes forward.
B. Do one pushup.
C. With your left hand reach over to the right & grasp the bag or dumbbell. Pull hard and drag it to the other side: don’t be afraid to use power. Try not to sway and keep your hips facing the floor and butt down. Engage your core.
D. Adjust the bag/dumbbell if needed and repeat with the pushup.
Switch sides each rep.
Modification: You can do this from the knees, and beginners can just glide a pillow/towel to each side instead of adding weights.