Erratum to: Medicine in spine exercise (MiSpEx) for nonspecific low back pain patients: study protocol for a multicentre, single-blind randomized controlled trial.

Erratum

Unfortunately, the original version of this article [1] contained an error. The correct term can be found below:

Sufficient test–retest reliability and validity (r2 > 0.97; RMSE = 4.1°; p < 0.001) of this measurement system for lumbar spine kinematics has recently been demonstrated [31].