Figure 2.

Change over 12 months on the Low Back Pain Rating Scale (LBPRS) pain subscale for chronic low back pain patients randomized to either supervised Nordic walking, unsupervised Nordic walking or advice to remain active.

Hartvigsen et al. BMC Musculoskeletal Disorders 2010 11:30   doi:10.1186/1471-2474-11-30
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