**Contents**


Association between Dietary Protein Intake, Regular Exercise, and Low Back Pain among Middle-Aged and Older Korean Adults without Osteoarthritis of the Lumbar Spine Reprinted from: *J. Clin. Med.* **2022**, *11*, 1220, doi:10.3390/jcm11051220 . . . . . . . . . . . . . . . . **163**

### **Barbara Kleinmann and Tilman Wolter**
