Overall SLR range of motion. SLR range of motion during PF/SLR (A) and DF/SLR (B) for the right (x-axis) and left (y-axis) are presented in degrees for Phase 1 (red) and Phase 2 (blue) including best fit lines for each phase. Black line represents the absolute y = x condition as indicated by the 1/1 slope. The grey dotted lines represent ± 2 standard deviations from the mean for Both Phases. Data points above the y = x line are indicative of more SLR range of motion on the left limb and those below this line indicate more on the right limb.
Boyd and Villa BMC Musculoskeletal Disorders 2012 13:245 doi:10.1186/1471-2474-13-245