Table 3.

Effect of Time and Subjective Fatigue on Stride Velocity During NW and WWT

	Estimate	t	95% CI	p
(A) Stride velocity during NW
Walk 1 vs Walk 2	−0.250	−0.44	−1.363 to 0.862	.658
Walk 1 vs Walk 3	0.930	1.56	−2.458 to 2.107	.120
Walk 1 vs Walk 4	−1.655	−2.45	−2.986 to −0.325	.014
Walk 1 vs Walk 5	0.673	1.68	−0.195 to 2.455	.094
Walk 1 vs Walk 6	−1.694	−2.30	−3.144 to −0.245	.021
Subjective fatigue	−1.913	−1.06	−5.480 to 1.653	.292
Subjective fatigue × Walk 1 vs Walk 2	−0.896	−1.11	−2.486 to 0.692	.267
Subjective fatigue × Walk 1 vs Walk 3	−0.217	−0.25	−1.896 to 1.462	.799
Subjective fatigue × Walk 1 vs Walk 4	0.083	0.09	−1.816 to 1.983	.931
Subjective fatigue × Walk 1 vs Walk 5	−0.465	−0.48	−2.359 to 1.427	.628
Subjective fatigue × Walk 1 vs Walk 6	−0.544	−0.52	−2.615 to 1.527	.605
(B) Stride velocity during WWT
Walk 1 vs Walk 2	−3.185	−4.85	−4.477 to −1.891	<.0001
Walk 1 vs Walk 3	−2.318	−3.31	−3.696 to −0.939	.001
Walk 1 vs Walk 4	−3.984	−5.27	−5.473 to −2.495	<.0001
Walk 1 vs Walk 5	−2.756	−3.53	−4.293 to −1.220	.0005
Walk 1 vs Walk 6	−4.392	−5.51	−5.962 to −2.832	<.0001
Subjective fatigue	−1.362	−0.70	−5.183 to 2.458	.483
Subjective fatigue × Walk 1 vs Walk 2	0.887	0.95	−0.958 to 2.733	.344
Subjective fatigue × Walk 1 vs Walk 3	0.472	0.48	−1.489 to 2.446	.632
Subjective fatigue × Walk 1 vs Walk 4	−0.808	−0.75	−2.934 to 1.317	.454
Subjective fatigue × Walk 1 vs Walk 5	0.018	0.02	−2.175 to 2.212	.986
Subjective fatigue × Walk 1 vs Walk 6	−1.231	−1.08	−3.473 to 1.009	.280

Note: NW = normal-walk; WWT = walk-while-talk.