- Begin in plank position with straight arms and legs. Your wrists should be directly below your shoulders. If this is tough to hold, rest one or both knees on the floor.
- Keeping your core engaged, inhale as you bend your elbows out to the sides, lowering your torso toward the floor. Keep your body in one straight line, and don't let your lower back sag or your hips hike upward.
- Exhale to straighten your arms, coming back to plank position. This counts as one repetition.
- Complete as many reps as you can, aiming for 20.
This simple move does wonders for strengthening your arms, but it's important to do it correctly.