Surface electromyography of the paravertebral muscles in patients with chronic low back pain Michael Kramer, MD, Volker Ebert, MD, Lothar Kinzl, MD, Christoph Dehner, MD, Martin Elbel, Erich Hartwig, MD Archives of Physical Medicine and Rehabilitation Volume 86, Issue 1, Pages 31-36 (January 2005) DOI: 10.1016/j.apmr.2004.01.016
Fig 1 Schematic drawing of the power spectrum divided into frequency bands. Archives of Physical Medicine and Rehabilitation 2005 86, 31-36DOI: (10.1016/j.apmr.2004.01.016)
Fig 2 Electromyographic examination on the training device. Archives of Physical Medicine and Rehabilitation 2005 86, 31-36DOI: (10.1016/j.apmr.2004.01.016)