Table 2.

Step length, gait speed, and ratio of step length to gait speed for the three experimental groups and for groups with selected characteristics, reported in the literature.

Sample	Step Length/bh	Gait Speed/bh	Gait Speed/Step length
Group A	.433 (.035)†	.949 (.107)**	2.18
Group B	.309 (.027)**	.493 (.047)†	1.59
Group C	.422(.027)†	.490 (.035)†	1.16
Fearful [11] §§	0.301	0.545	1.81
Fearless [11] §§	0.403	0.78	1.94
Fallers [30]	0.297	0.539	1.82
Non-fallers [30]	0.374	0.742	1.98
Disabled [31]	0.347	0.65	1.87
Healthy [31]	0.366	0.706	1.93
Transition to Frail [32]	0.345	0.602	1.75

Step length is the distance between the heel markers and gait speed is the velocity of the sacral marker, both at slipping foot touchdown and both normalized to body height. Gait speed is the ratio of gait speed to step length.

^**B vs. A (P<.001) and B vs. C (P<.001) for step length, or A vs. B (P<.001) and A vs. C (P<.001) for speed.

^†C vs. A (P=.443) and B vs. C (P=.999)

For references in which gait parameters had been presented in absolute terms, the absolute values were divided by the stated average body height for that group.

^§§In this study, no anthropometrics were available; body height of 1.624 m (average among these other studies) was used for normalization.