1. Measurement Properties of the Quebec Back Pain Disability Scale in Patients With Nonspecific Low Back Pain: Systematic Review. Issue 11 (1st November 2016) Authors: Speksnijder, Caroline M.; Koppenaal, Tjarco; Knottnerus, J. André; Spigt, Mark; Staal, J. Bart; Terwee, Caroline B. Journal: Physical therapy Issue: Volume 96:Issue 11(2016) Page Start: 1816 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Measuring exercise adherence in patients with low back pain: development, validity, and reliability of the EXercise Adherence Scale (EXAS). (3rd July 2022) Authors: Arensman, Remco M.; Geelen, Rianne H.; Koppenaal, Tjarco; Veenhof, Cindy; Pisters, Martijn F. Journal: Physiotherapy theory and practice Issue: Volume 38:Number 7(2022) Page Start: 928 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗