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Dose of physical activity, physical functioning and disability risk in mobility-limited older adults: Results from the LIFE study randomized trial

Fig 2

Change in 400 m walk gait speed (m/s) compared to baseline gait speed at 6, 12, and 24 months according to quartiles of change physical activity by accelerometry from baseline to 24 months, (a.) physical activity arm alone and (b.) entire group combined (least square means ± SE). Overall effect P < 0.0001. Effects within each time point P < 0.0001.

Fig 2

doi: https://doi.org/10.1371/journal.pone.0182155.g002