Table 3. Comparison of prosthesis arm versus contralateral arm: single-arm load-bearing capacities (maximum tested weight lifting 20 lbs [9 kg]).

	Neutral lifting position (lbs) [kg]	Pronated lifting position (lbs) [kg]	Supinated lifting position (lbs) [kg]
Prosthesis arm	16.4 (SD 5.5, n = 21) [7.5 kg (SD 2.5, n = 21)]	15.5 (SD 6.2, n = 19) [7.1 kg (SD 1.3, n = 19)]	15.8 (SD 5.6, n = 19) [7.2 kg (SD 2.6, n = 19)]
Other arm	16.9 (SD 4.9, n = 18) [7.7 kg (SD 2.2, n = 18)]	16.7 (SD 5.4, n = 18) [7.6 kg (SD 2.5, n = 18)]	16.7 (SD 5.4, n = 18) 7.6 kg (SD 2.5, n = 18)]
P-value	.379	.278	.316