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Table 3 Convergent validity between instrumented measures and conventional scales

From: Validity and sensitivity of instrumented postural and gait assessment using low-cost devices in Parkinson’s disease

 

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**

  1. Correlations between measures of the instrumented tests and conventional clinical scales
  2. *p < 0.05. **p < 0.01