The 14 Best Back Exercises, According to Trainers

Planks are great for core strength, but they can also help strengthen your upper back. "Some of the benefits of incorporating planks consistently into your routine are improved posture, increased core strength, and decreased back pain," Robin Long, founder of Lindywell Pilates, previously told PS. You can even add weight to this rotating variation for an additional challenge.

• Start in a high plank position.
• Twist to the right and reach your arm up to the sky, keeping your back muscles engaged and squeezing your right shoulder blade toward your spine while you twist. Repeat on the other side to complete one rep.