Comparison of outcomes in the per protocol practice group and those who practiced minimally. Values are means for those who practiced minimally (≤ 3 h/week, N = 11), and those who practiced as per protocol (≥ 5 h/week, N = 38). Numbers at the bottom of the figure indicate mean (SD) values. Between-group P-values indicated within figure. B, baseline; mo, month.
Lynch et al. Arthritis Research & Therapy 2012 14:R178 doi:10.1186/ar3931