TY - JOUR
T1 - Improved compensatory postural adjustments of the deep abdominals following exercise in people with chronic low back pain
AU - Knox, Michael F.
AU - Chipchase, Lucy S.
AU - Schabrun, Siobhan M.
AU - Marshall, Paul W.M.
PY - 2017/12
Y1 - 2017/12
N2 - The purpose of this study was to determine if 8 weeks of exercise affects motor control in people with chronic low back pain (CLBP), measured by anticipatory (APAs) and compensatory postural adjustments (CPAs). APAs and CPAs were measured prior to and following 8 weeks in two groups of people with CLBP: an exercise group (n = 12) who attended three exercise sessions per week for 8 weeks; and a non-exercise control group (n = 12) who were advised to continue their usual activities for the duration of the study. APAs and CPAs were recorded during unilateral arm flexion, bilaterally from rectus abdominis (RA), transverse abdominis/internal oblique (TA/IO), and erector spinae (ES) via surface electromyography. Analysis of muscle onsets and APA amplitudes suggests APAs did not change for either group. Ipsi-lateral TA/IO CPAs increased for the exercise group and ipsi-lateral TA/IO CPAs decreased for the control group. Only exercise promoted a pattern of TA/IO activity during CPAs similar to healthy individuals, suggesting improved control of rotational torques. These results show motor control improvement following exercise in people with CLBP, highlighted by improved side specific control of TA/IO.
AB - The purpose of this study was to determine if 8 weeks of exercise affects motor control in people with chronic low back pain (CLBP), measured by anticipatory (APAs) and compensatory postural adjustments (CPAs). APAs and CPAs were measured prior to and following 8 weeks in two groups of people with CLBP: an exercise group (n = 12) who attended three exercise sessions per week for 8 weeks; and a non-exercise control group (n = 12) who were advised to continue their usual activities for the duration of the study. APAs and CPAs were recorded during unilateral arm flexion, bilaterally from rectus abdominis (RA), transverse abdominis/internal oblique (TA/IO), and erector spinae (ES) via surface electromyography. Analysis of muscle onsets and APA amplitudes suggests APAs did not change for either group. Ipsi-lateral TA/IO CPAs increased for the exercise group and ipsi-lateral TA/IO CPAs decreased for the control group. Only exercise promoted a pattern of TA/IO activity during CPAs similar to healthy individuals, suggesting improved control of rotational torques. These results show motor control improvement following exercise in people with CLBP, highlighted by improved side specific control of TA/IO.
KW - Electromyography
KW - Exercise
KW - Low back pain
KW - Motor control
KW - Postural adjustments
UR - http://www.scopus.com/inward/record.url?scp=85032185093&partnerID=8YFLogxK
U2 - 10.1016/j.jelekin.2017.10.009
DO - 10.1016/j.jelekin.2017.10.009
M3 - Article
C2 - 29080466
AN - SCOPUS:85032185093
VL - 37
SP - 117
EP - 124
JO - JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
JF - JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
SN - 1050-6411
ER -