21-Day Arm Workout Challenge
Strengthen Your Arms and Shoulders With This 3-Week Dumbbell Challenge
21-Day Arm Challenge Exercise 1: Hammer Curl
- Stand with your feet hip-distance apart, holding a dumbbell in each hand at the sides of your body.
- Keeping your elbows close to your ribs, bend your elbows and slowly raise the dumbbells to your shoulders.
- Moving with control, lower back to the starting position. That's one rep.