IRCT2017012028186N2 IRCT 2017-03-06 Vice Chancellor for Research, Zahedan University of Medical Sciences Investigation of the effect of Sahrmann exercises in chronic low back pain patients with lumbar rotation-extension syndrome Investigation of the effect of Sahrmann exercises on lumbo-pelvic motor control, balance, pain and disability in chronic low back pain patients with lumbar rotation-extension syndrome: A randomized clinical trial 2016-10-26 anticipated 30 Complete https://irct.ir/trial/22919 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: In this clinical trial (phase 2) patients by using consecutive assignment were assigned into two groups, Sahrmann exercises(15 subjects) and control group(15 subjects).  . N/A chronic low back pain with rotation-extension syndrome. Intervention 1: Control group: 12 sessions treatment during 4 consecutive weeks, three times per week, each session including: 15 minutes TENS, 20 minutes Hot Pack and 5 minutes UltraSound. Intervention 2: Sahrmann exerciseS group: 12 sessions exercise during 4 consecutive weeks, three times per week, 30 minutes pre session including: exercises just 10-15 times for 10-15 seconds with 2 minutes of rest between exercises in 8 positions: supine, sidelying, prone, quadruped, sitting, sitting to standing, standing and walking from easy to difficult done.