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Individuals With Non-Specific Low Back Pain Use A Trunk Stiffening Strategy To Maintain Upright Posture, Stephanie Jones, Sharon Henry, Christine Raasch, Juvena Hitt, Janice Bunn
Individuals With Non-Specific Low Back Pain Use A Trunk Stiffening Strategy To Maintain Upright Posture, Stephanie Jones, Sharon Henry, Christine Raasch, Juvena Hitt, Janice Bunn
Stephanie Jones
There is increasing evidence that individuals with non-specific low back pain (LBP) have altered movement coordination., however, the relationship of this neuromotor impairment to recurrent pain episodes is unknown. To assess coordination while minimizing the confounding influences of pain we characterized automatic postural responses to multi-directional support surface translations in individuals with a history of LBP who were not in an active episode of their pain. Twenty subjects with and 21 subjects without non-specific LBP stood on a platform that was translated unexpectedly in 12 directions. Net joint torques of the ankles, knees, hips and trunk in the frontal and …
A History Of Low Back Pain Associates With Altered Electromyographic Activation Patterns In Response To Perturbations Of Standing Balance, Jesse Jacobs, Sharon Henry, Stephanie Jones, Juvena Hitt, Janice Bunn
A History Of Low Back Pain Associates With Altered Electromyographic Activation Patterns In Response To Perturbations Of Standing Balance, Jesse Jacobs, Sharon Henry, Stephanie Jones, Juvena Hitt, Janice Bunn
Stephanie Jones
People with a history of low back pain (LBP) exhibit altered responses to postural perturbations, and the central neural control underlying these changes in postural responses remains unclear. To characterize more thoroughly the change in muscle activation patterns of people with LBP in response to a perturbation of standing balance, and to gain insight into the influence of early- vs. late-phase postural responses (differentiated by estimates of voluntary reaction times), this study evaluated the intermuscular patterns of electromyographic (EMG) activations from 24 people with and 21 people without a history of chronic, recurrent LBP in response to 12 directions of …