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Individual changes in VO2max after 12 weeks of supervised exercise training, in ml/kg/min (A) and L/min (B). Individual changes in steps/day from baseline to 12-weeks (C and D), with subjects aligned in the same order as presented for corresponding VO2max changes in panels A and B. The Δ steps is represented by the slope of the linear regression equation for each participant over the 12 weeks of training, in steps/day. N = 44
