Fig. 3.

A significant relationship was observed (A) between the digit force angular deviation and the Fugl-Meyer upper extremity score (out of 24), (B) between the digit force angular deviation and the Chedoke McMaster hand score (out of 7), and (C) between the digit force angular deviation and the Box and Block Test (p<0.001 and R²≈0.6 for all). As a benchmark, the mean±1 standard error digit force angular deviation for age-matched control subjects (11° ±5°) obtained in the previous study (Seo et al., 2010) is shown with a vertical dash line and shades around that dash line. For the Box and Block Test, the mean±1 standard error normative score (74±2) for 55–59 years old healthy adults from a previous study (Mathiowetz et al., 1985) is noted with a horizontal dash line and shades around that dash line (C). In addition, the vertical dash dot line at 21° represents the digit force deviation above which no more than four blocks could be moved (C).