Arthritis Care and Research has published a study on the triggers for low back pain, which include both physical and psychosocial components. Triggers included: manual tasks involving heavy loads or awkward positioning, handling live people or animals, physical activity, sexual activity, and slipping, tripping, or falling. Psychosocial triggers included alcohol consumption and being distracted or fatigued. Investigators attempted to quantify the risk associated with transient exposure to these modifiable triggers by exposing patients to triggers during the two hours before an episode of back pain and comparing that with exposure in the 24 and 48 hours before back pain onset. There were 999 subjects with a new episode of acute low back pain included in the data. Lifting heavy loads was the most significant factor overall, and fatigue was the most significant psychosocial factor.
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