One-arm push-ups are a challenging and effective exercise that targets the chest, shoulders, and triceps. They are more difficult than regular push-ups, but they also provide greater benefits.
To do a one-arm push-up, start by placing your feet shoulder-width apart and your hands on the floor, slightly wider than shoulder-width apart. Lower your chest towards the floor, keeping your elbows tucked in close to your body. Push yourself back up to the starting position, using only your left arm. Repeat for 8-12 repetitions, then switch arms.