R. Letchuman et Rh. Deusinger, COMPARISON OF SACROSPINALIS MYOELECTRIC ACTIVITY AND PAIN LEVELS IN PATIENTS UNDERGOING STATIC AND INTERMITTENT LUMBAR TRACTION, Spine (Philadelphia, Pa. 1976), 18(10), 1993, pp. 1361-1365
The purposes of this study of low back pain patients were to determine
: 1) if presence of sacrospinalis myoelectric activity is a consistent
phenomenon in supine and prone positions; 2) if there is a difference
between magnitudes of myoelectric activity for two types of lumbar tr
action (static and intermittent); and 3) if there is a difference in p
atient perceived pain level after traction between the two types of tr
action. Results sown that surface electrode myoelectric activity is ab
sent in resting supine and prone positions, there is no significant di
fference in magnitude of myoelectric activity between the two differen
t types of traction, and more than 50% of patients in both traction gr
oups experience decreased pain after traction.