Upper-Back Strength

There are plenty of ways to work the back muscles, even if you don’t have a squat rack, a pull-up bar, or standard weights like barbells and dumbbells.

Blast your upper body with celebrity trainer Josefine Holmberg’s 20-minute one-kettlebell workout.

Can't do a pull-up? Never fear — this program will have your chin up (pun intended) in no time.