Effects of Motor Control Exercise Vs Muscle Stretching Exercise on Reducing Compensatory Lumbopelvic Motions and Low Back Pain: A Randomized Trial.
The purpose of this study was to investigate the effectiveness of a 6-week motor control exercise (MCE) vs stretching exercise (SE) on reducing compensatory pelvic motion during active prone knee flexion (APKF) and intensity of low back pain.



Thirty-six people in the lumbar-rotation-extension subgroup were randomly assigned equally into 2 exercise groups (18 people in each an MCE or SE group). A 3-dimensional motion-analysis system was used to measure the range and onset time of pelvic motion and knee flexion during APKF. Surface electromyography was used to measure the muscle activity and onset time of the erector spinae and the hamstrings during APKF. The level of subjective low back pain was measured using a visual analog scale.



The MCE group had more significant decreases in and delay of anterior pelvic tilt, pelvic rotation, and erector spinae muscle activity during APKF, as well as reduced intensity of low back pain compared with the SE group (P < .05).



For rehabilitation in patients in the lumbar-rotation-extension subgroup, MCE was more effective than SE in reducing compensatory pelvic motion and muscle activity during APKF and minimizing low back pain.
Department of Physical Therapy, Jeonju University, Jeonju, South Korea.
Kyue-Nam
KN
Park
Laboratory of Kinetic Ergocise Based on Movement Analysis, Department of Physical Therapy, Yonsei University, Wonju, South Korea. Electronic address: kwonoy@yonsei.ac.kr.
Oh-Yun
OY
Kwon
Department of Physical Therapy, Yonsei University, Wonju, South Korea.
Chung-Hwi
CH
Yi
Department of Physical Therapy, Yonsei University, Wonju, South Korea.
Heon-Seock
HS
Cynn
Department of Physical Therapy, Joongbu University, Geumsan, South Korea.
Jong-Hyuck
JH
Weon
Department of Physical Therapy, Daegu University, Gyeongsan, South Korea.
Tae-Ho
TH
Kim
Department of Physical Therapy, Hanseo University, Seosan, South Korea.
Houng-Sik
HS
Choi
D000328:Adult; D001696:Biomechanical Phenomena; D005081:Exercise Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D007719:Knee Joint / Q000502:physiology; D017116:Low Back Pain / Q000503:physiopathology* / Q000534:rehabilitation / Q000628:therapy; D008159:Lumbar Vertebrae / Q000503:physiopathology; D008297:Male; D009119:Muscle Contraction / Q000502:physiology; D052580:Muscle Stretching Exercises; D018482:Muscle, Skeletal / Q000502:physiology*; D010388:Pelvis / Q000503:physiopathology; D011187:Posture / Q000502:physiology; D016059:Range of Motion, Articular; D012399:Rotation; D013647:Task Performance and Analysis; D055815:Young Adult
Classification; Exercise; Low Back Pain; Muscle Stretching Exercises