Table 1.

Flexion angles, external sagittal plane moments, and time of occurrence for gait parameters (Figure 3) for the TKR and the control subjects. Flexion angles are given in degrees, external moments are given in percent body weight times height (%BW*Ht), and timings are given as a percentage of the gait cycle and of the stance phase. P-values correspond to Mann-Whitney U tests.

	TKR	Control	p
Flexion Angle (°)
Heel Strike Flexion Angle	0.4 ± 5.0	−2.0 ± 3.2	0.080
Mid Stance Maximum Flexion Angle	16 ± 3.9	16 ± 5.4	0.686
% Stance	25 ± 3.9	26 ± 2.4	0.773
Terminal Stance Minimum Flexion Angle	6.3 ± 5.9	1.4 ± 3.4	0.002
% Stance	65 ± 9.6	67 ± 7.5	0.686
Maximum Flexion Angle during Swing	57 ± 5.5	62 ± 4.7	0.002
% Gait Cycle	74 ± 1.6	74 ± 1.7	0.817
Sagittal Plane Moment (%BW*Ht)
1st Maximum Extension Moment	−2.3 ± 0.9	−3.1 ± 1.0	0.013
% Stance	3.4 ± 1.1	3.1 ± 0.9	0.488
Maximum Flexion Moment	2.1 ± 0.9	2.3 ± 1.5	0.297
% Stance	22 ± 2.5	24 ± 2.4	0.022
2nd Maximum Extension Moment	−2.1 ± 0.8	−3.0 ± 1.0	0.014
% Stance	76 ± 2.2	73 ± 3.2	<0.001