When I sat down to read these papers, I was frankly astonished: nearly all high-quality studies on this topic fail to find consistent evidence linking habitual sitting in flexed or slouched postures with back pain.68 I was also surprised to read there is no good evidence that people who sit longer are more likely to have back pain,69 or that we can lessen the incidence of back pain by using special chairs or getting up frequently.70 Instead, the best predictor of avoiding back pain is having a strong lower back with muscles that are more resistant to fatigue; in turn, people with strong,
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