Sitting
Following the experiment and data analysis, differences in joint angles and center of pressure were observed between the controls and amputees (intact and amputated limb). There were no significant differences noted in hip angles or range of motion in sitting transitions. A significant difference was seen in minimum knee angle between the control and amputated limbs (p=0.007). During sit transitions, significant differences were found in all three ankle joint measures. The maximum ankle angle in the control significantly differed from both the amputated (p=0.0001) and intact limb (p=0.002). The maximum ankle angle was also significantly different between the intact and amputated limb (p=0.009). The minimum ankle angle of the control significantly differed from the amputated (p=0.001) and intact (p=0.002) limbs during sitting. The amputated limb showed a significant difference in ankle range of motion while sitting from both the control (p=0.0001) and intact (p=0.016) limb. In sitting center of pressure measures, the amputated limb differed significantly in x range excursion from both the control (p=0.0001) and from the intact limb (p=0.002). In y range excursion, the amputated limb significantly differed from the control (p=0.01).
Standing
During the standing trials, no significant differences were seen at the hip, knee maximum angle, or knee range of motion. A significant difference was measured in the minimum knee angle between the control and the amputated limb in the minimum knee angle while standing (p=0.003). Significant differences were found in maximum and minimum ankle angles and range of motion. The control differed significantly from both the amputated (p=0.0001) and the intact (p=0.0001) limbs in maximum ankle angle while standing. A significant difference was also seen in this measure between the amputated and intact limb (p=0.001). In the minimum ankle angle, a significant difference was seen between the control and amputated (p=0.0001), as well as between the control and intact (p=0.001). While standing, the amputated limb significantly differed from both the control (p=0.0001) and from the intact limb (p=0.003). The center of pressure X range excursion was showed significant differences between the control and amputated limb (p=0.0001) and between the control and intact limb (p=0.05). Although the difference between the control and intact limb was shown to be significant, the calculated p value is on the cusp. Therefore, this result may change if the subject pool was larger. In standing Y range excursion, the only significant difference was between the control and amputated limb (p=0.04).