International Journal of Interdisciplinary Research
Table 4 Measurement results for participants’ finger-bending angles
Target object | Landmark number | Bending angle (°) Mean (SD) | Total (°) Mean (SD) | P value |
|---|---|---|---|---|
Thumb | 1–2–9 | 35.21 (12.88) | – | – |
Index finger | ||||
 Proximal interphalangeal | 3–4–5 | 38.04 (11.79) | 61.90 (18.20) | 0.006 |
 Metacarpophalangeal | 4–5–9 | 23.86 (6.41) | ||
Middle finger | ||||
 Proximal interphalangeal | 6–7–8 | 40.75 (11.24) | 65.32 (20.09) | 0.004 |
 Metacarpophalangeal | 7–8–9 | 24.57 (8.85) | ||