Table 3.

Convergent validity between instrumented measures and conventional scales

	Tinetti Performance Oriented Mobility Assessment			Functional Gait Assessment	10-m Walking Test
	Total	Balance	Gait
Postural control
Modified clinical test of sensory interaction on balance
Speed	− .183	− .24	− .088	− .154	.13
Limits of stability
Maximum displacement	.484**	.413**	.455**	.516**	− .506**
Reaction time	− .354**	− .369**	− 0.265	− .501**	.279*
Gait (single-task)
Gait speed	.521**	.509**	.422**	.766**	− .850**
Cadence	.447**	.434**	.364**	.594**	− .698**
Stride length	.385**	.360**	.329*	.594**	− .655**
Stride time	− .458**	− .455**	− .363**	− .645**	.750**
Stride width	− .026	.042	.09	− .011	.059
Step length	.293*	.327*	.196	.541**	-.625**
Step time	− .458**	− .414**	− .405**	− .628**	.732**
Double support time	− .475**	− .458**	− .391**	− .592**	.761**

Correlations between measures of the instrumented tests and conventional clinical scales

*p < 0.05. **p < 0.01