Many people with recurrent low back pain (LBP) have deficits in postural control of the trunk muscles and this may contribute to recurrence episodes. However, neural changes that underlie these motor remain unclear. As cortex contributes adjustments, current study investigated excitability organization cortical inputs 11 individuals without LBP. EMG activity deep abdominal muscle, transversus abdominis (TrA), was recorded bilaterally using intramuscular fine-wire electrodes. Postural...

Cross-sectional design.To investigate whether recurrent low back pain (LBP) is associated with changes in motor cortical representation of different paraspinal muscle fascicles.Fascicles the lumbar muscles are differentially activated during function. Human studies indicate this may be a spatially separate array neuronal networks at cortex. Loss discrete control fascicles LBP because organization.Data were collected from 9 individuals unilateral and compared 11 healthy participants an...

Abstract The sensory and motor systems can reorganise following injury learning of new skills. Recently we observed adaptive changes in cortical organisation patients with recurrent low back pain (LBP), which are linked to altered coordination. Although coordination be trained associated improved symptoms function, it remains unclear whether these training‐induced related reorganisation the cortex. This was investigated using model a delay postural activation deep abdominal muscle,...

Abstract Objective A retrospective audit of presentations to a tertiary trauma centre reviewing the demographics electric scooter injuries in first 2 months scooter‐share scheme, which was commenced Brisbane November 2018. Methods Electric scooter‐associated Royal and Women's Hospital Emergency Trauma Centre from 2018 January 2019 were identified. Data collected included patient demographics, type location injuries, helmet use, alcohol consumption, length stay disposition. Estimates costs...

People with a history of low back pain (LBP) are at high risk to encounter additional LBP episodes. During remission, altered trunk muscle control has been suggested negatively impact spinal health. As sudden onset is commonly reported during flexion, the aim current study investigate whether dynamic recruitment in remission. Eleven people remission recurrent and 14 free controls performed cued flexion loaded unloaded condition. Electromyographic activity was recorded from paraspinal (lumbar...

Injection of hypertonic saline into back muscles or ligaments can induce acute low pain (LBP). However, no study has systematically investigated characteristics from these structures. Further, induced muscle change with stretching and contraction, which is problematic for studies the effect on sensorimotor control. it unclear whether this occurs experimental ligament pain. In separate sessions, 10 healthy volunteers received a single bolus injection (0.2 ml, 5% NaCl) isotonic (0.3 0.9% L4/5...

Cross-sectional controlled laboratory study.To investigate the function of discrete regions psoas major (PM) and quadratus lumborum (QL) with changes in spinal curvature hip position.Anatomically PM QL may have differential on lumbar spine, based anatomical biomechanical differences their moment arms between fascicles within each muscle.Fine-wire electrodes were inserted ultrasound guidance into arising from transverse process (PM-t) vertebral body (PM-v) anterior (QL-a) posterior (QL-p)...

Abstract Controversy exists regarding the function of psoas major (PM) and quadratus lumborum (QL) at lumbar spine. The functions discrete regions PM QL were studied during trunk loading tasks. Twelve healthy participants performed isometric tasks in various directions upright sitting. Fine‐wire electromyography (EMG) electrodes inserted under ultrasound guidance into fascicles arising from transverse process (PM‐t) vertebral body (PM‐v) anterior (QL‐a) posterior (QL‐p) layers on right side....

Abstract Pain is thought to interfere with training‐induced plasticity of corticomotor pathways. Although this implies direct interference plastic processes, it may be explained by compromised performance in the training task during pain. Repeated finger movements can induce and change amplitude/direction acceleration movement evoked transcranial magnetic stimulation (TMS). We hypothesized that if pain interferes plasticity, would not when was painful, despite control performance. TMS...

Cross-sectional controlled laboratory study.To investigate potential changes in the function of discrete regions psoas major (PM) and quadratus lumborum (QL) with spinal curvatures hip positions sitting, people recurrent low back pain (LBP).Although PM QL contribute to control curvature whether activity these muscles is changed individuals LBP unknown.Ten volunteers (pain free at time testing) 9 pain-free a comparison group participated. Participants were grouped into those high erector...