TY  - JOUR
A1  - Rowley, K. Michael
A1  - Engel, Tilman
A1  - Kulig, Kornelia
T1  - Trunk and hip muscle activity during the Balance-Dexterity task in persons with and without recurrent low back pain
T2  - Journal of electromyography and kinesiology
N2  - Coordination of the trunk and hips is crucial for successful dynamic balance in many activities of daily living. Persons with recurrent low back pain (rLBP), both while symptomatic and during periods of symptom remission, exhibit dysfunctional muscle activation patterns and coordination of these joints. In a novel dynamic balance task where persons in remission from rLBP exhibit dissociated trunk motion, it is unknown how trunk and hip musculature are coordinated. Activation of hip and trunk muscles were acquired from nineteen persons with and without rLBP during the Balance-Dexterity Task, which involves balancing on one limb while compressing an unstable spring with the other. There were no between-group differences in activation amplitude for any muscle groups tested. In back-healthy control participants, hip and trunk muscle activation amplitudes increased proportionally in response to the added instability of the spring (R = 0.837, p < 0.001). Increases in muscle activation amplitudes in the group in remission from rLBP were not proportional (R = 0.113, p = 0.655). Instead, hip muscle activation in this group was associated with task performance, i.e. dexterous control of the spring (R = 0.676, p = 0.002). These findings highlight atypical coordination of hip and trunk musculature potentially related to task demands in persons with rLBP even during remission from pain.
KW  - balance
KW  - low back pain
KW  - trunk and hip coordination
KW  - lumbopelvic
Y1  - 2020
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/58164
SN  - 1050-6411
SN  - 1873-5711
VL  - 50
PB  - Elsevier Science
CY  - Amsterdam
ER  -