Postural reactivity definition3/1/2024 ![]() ![]() During activities of daily living, people may experience postural perturbations in the form of self-initiated movements, standing on a moving bus, or being hit by an external object. Authors hypothesise that ineffective control of postural perturbations increases the risk of excessive forces being experienced by passive structures of the spine, contributing to the persistence of LBP. The identification of biological factors that play a role in the persistence of symptoms is vital for the development of interventions to treat LBP.Ī plausible biological mechanism that may impede LBP recovery is the control of postural perturbations by the central nervous system (CNS). Despite the high prevalence, the effect sizes of most treatments are small. Approximately 84 % of people will experience an acute episode of LBP, with estimates that 10 % of these will develop chronic symptoms. Low back pain (LBP) is a leading cause of work absence and activity limitation worldwide. The findings of this review may aid in the identification of factors that play a role in the persistence of symptoms and disability and aid in the development of interventions to treat symptoms. To our knowledge, this is the first systematic review to examine APAs and CPAs, as measured by EMG, COP, and kinematics in people with LBP. Data will be synthesised if studies are homogeneous otherwise, results will be reviewed narratively. Studies comparing APA onset and amplitude and CPA onset and amplitude measured by EMG, COP, or kinematics between people with LBP and healthy individuals will be included if all aspects of the eligibility criteria are met. Any disagreements will be resolved by a third reviewer. Two independent reviewers will screen potentially relevant articles for inclusion, extract data, and assess risk of bias for individual studies. Searches will be conducted in electronic databases for full-text articles published before January 2016 using pre-defined search strategies that utilise combinations of keywords and medical subject heading terms. Methods/designĪ systematic review and meta-analysis will be conducted. Thus, the aim of the current review is to determine if APA and CPA onset or amplitude, as measured by electromyography (EMG), centre of pressure (COP), and kinematics, are altered in people with LBP. Despite two decades of research, there is no systematic review investigating APAs and CPAs in people with LBP. Ineffective APAs and CPAs have been hypothesised to contribute to the persistence of symptoms and disability in people with low back pain (LBP). ![]() Anticipatory (APAs) and compensatory (CPAs) postural adjustments are organised by the central nervous system (CNS) and serve to control postural perturbations.
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