Fig 1. A, Box plots showing the distribution of normalized ankle dorsiflexion strength across our population of individuals with MS (92 ankles). Ankle strengths are reported as z-scores, corrected for age, handedness, and sex. Red indicates RRMS; green, SPMS; purple, PPMS. For each box-and-whisker plot, the central line represents the median, the box represents the interquartile range, and the whiskers represent the fifth and ninety-fifth percentiles. The dotted horizontal line denotes the fifth percentile of healthy controls. B, Correlation between ankle dorsiflexion and hip flexion strength in the same individuals (87 ankles and hips). The best-fitting linear regression line is shown in red.