Table 1. Median (25th, 75th quartiles) for maximum and mean values of forces (Newton) on FPL and FDP tendons for each Soong's position and plate type.

		FPL tendon		FDP tendon
Soong's grade	Plate	Maximum force (N)	Mean force (N)	Maximum force (N)	Mean force (N)
0	0	0.10 (0.07, 0.13)	0.04 (0.02, 0.10)	0.10 (0.06, 0.14)	0.03 (0.02, 0.09)
2	0	0.28 (0.19, 0.62)	0.16 (0.12, 0.25)	0.35 (0.32, 0.43)	0.16 (0.14, 0.31)
0	1	0.94 (0.05, 0.21)	0.05 (0.03, 0.17)	0.16 (0.08, 0.34)	0.11 (0.04, 0.18)
2	1	0.90 (0.63, 1.56)	0.46 (0.39, 0.61)	0.91 (0.65, 1.58)	0.50 (0.31, 0.78)
0	2	0.09 (0.06, 0.12)	0.05 (0.02, 0.07)	0.13 (0.09, 0.18)	0.06 (0.04, 0.10)
2	2	1.02 (0.43, 1.68)	0.56 (0.21, 1.00)	1.03 (0.51, 1.19)	0.67 (0.28, 0.96)
0	3	0.11 (0.09, 0.27)	0.06 (0.03, 0.21)	0.12 (0.10, 0.22)	0.07 (0.05, 0.19)
2	3	0.47 (0.19, 1.79)	0.27 (0.10, 1.14)	0.42 (0.24, 1.35)	0.27 (0.14, 0.83)

Abbreviations: FDP, flexor digitorum profundus; FPL, flexor pollicis longus; N, Newton.

Note: Plate type of 0 is no plate, and this box indicates force values obtained when the sensor alone was placed either proximal to or at the watershed line.