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Mean cumulative hours spent participating in multiaxial, uniaxial, and non-weightbearing activity during middle school (left) and high school (right) for non-athletes and runners with a history of ≤ 1 or ≥ 3 BSIs. †p<0.05 compared to ≥ 3 BSI group for total hours physical activity. *p<0.05 compared to ≥ 3 BSI group for uniaxial physical activity.
