Table 3.

Within-condition results and statistical significance: tracking accuracy

A. Tracking Error, cm
Treadmill Speed	Mean	SD	Cue Frequency	Mean	SD	Cue	Mean	SD
0.2 m/s	2.781	0.790	None	1.824*	0.415	Manual	1.962*	0.278
0.4 m/s	2.354	0.462	0.09 Hz	2.646	0.489	Visual	3.088*	0.555
0.85 m/s	2.374	0.309	0.11 Hz	2.769	0.589	ANOVA	F = 58.00; *P < 0.001
1.3 m/s	2.592	0.543	0.18 Hz	2.861	0.469
			ANOVA	F = 16.59; P < 0.001
			Pairwise	*P < 0.001

B. Trunk/Cue Correlation and Time Lag
Treadmill Speed	Correlation	SD	Lag, s	SD	Cue Frequency	Correlation	SD	Lag, s	SD	Cue	correlation	SD	Lag, s	SD
0.2 m/s	0.953	0.015	−0.005	0.064	None	N/A		N/A		Manual	0.968*	0.010	0.015	0.057
0.4 m/s	0.957	0.020	−0.013	0.076	0.09 Hz	0.952*	0.010	−0.041*	0.075	Visual	0.946*	0.019	−0.017	0.097
0.85 m/s	0.961	0.013	0.000	0.072	0.11 Hz	0.962	0.013	0.009	0.059	ANOVA	F = 14.97; *P = 0.003
1.3 m/s	0.956	0.020	0.014	0.110	0.18 Hz	0.956	0.016	0.029	0.064
					ANOVA	F = 4.35; P = 0.027		F = 12.82; P < 0.001
					Pairwise	*P = 0.027		*P < 0.001

C. T3-L4 Fore-Aft Change, cm
Treadmill Speed	Mean	SD	Cue Frequency	Mean	SD	Cue	Mean	SD
0.2 m/s	1.368	0.189	None	1.331	0.186	Manual	1.266	0.045
0.4 m/s	1.359*	0.156	0.09 Hz	1.297	0.133	Visual	1.355	0.050
0.85 m/s	1.239*	0.133	0.11 Hz	1.302	0.106	ANOVA	F = 4.65; P = 0.057
1.3 m/s	1.277	0.156	0.18 Hz	1.314	0.146
ANOVA	F = 3.47; P = 0.028
Pairwise	*P < 0.035

D. T3-L4 Fore-Aft Correlation and Time Lag
Treadmill Speed	Correlation	SD	Lag, s	SD	Cue Frequency	Correlation	SD	Lag, s	SD	Cue	Correlation	SD	Lag, s	SD
0.2 m/s	0.900	0.029	0.009	0.071	None	0.680*	0.055	0.015	0.127	Manual	0.903	0.019	0.003	0.047
0.4 m/s	0.902	0.016	0.003	0.063	0.09 Hz	0.983	0.005	0.004	0.009	Vision	0.915	0.023	0.012	0.027
0.85 m/s	0.914	0.018	0.007	0.007	0.11 Hz	0.988	0.003	0.005	0.006
1.3 m/s	0.921	0.030	0.011	0.019	0.18 Hz	0.986	0.006	0.006	0.007
					ANOVA	F = 354; P < 0.001
					Pairwise	*P < 0.001

^*P values in each section/column define all of the above asterisked numbers in that section/column.