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Table 7 Reliability of the instrumented exercises with clinical instruments

From: Validity, reliability, and sensitivity to motor impairment severity of a multi-touch app designed to assess hand mobility, coordination, and function after stroke

 

Intra-rater reliability

Inter-rater reliability

Standard error of measurement

Minimal detectable change

Tapping (n)

.90**

.95**

.49

1.38

Tapping with the thumb while the remaining digits are weight-bearing (n)

.85**

.83**

1.30

3.62

Tapping with the index finger while the remaining digits are weight-bearing (n)

.90**

.87**

.97

2.69

Tapping with the middle finger while the remaining digits are weight-bearing (n)

.82**

.86**

1.45

4.00

Tapping with the ring finger while the remaining digits are weight-bearing (n)

.84**

.63*

1.39

3.85

Tapping with the little finger while the remaining digits are weight-bearing (n)

.90**

.82**

.65

1.79

Minimum pincer grasp with the index finger (cm)

.70**

.85**

.20

.54

Maximum pincer grasp with the index finger (cm)

.57*

.53*

.52

1.45

Minimum pincer grasp with the middle finger (cm)

.63**

.41*

.28

.77

Maximum pincer grasp with the middle finger (cm)

.77**

.80**

.35

.98

Minimum pincer grasp with the ring finger (cm)

.69**

.86**

.17

.47

Maximum pincer grasp with the ring finger (cm)

.68**

.57*

.42

1.16

Minimum pincer grasp with the little finger (cm)

.75**

.71**

.17

.47

Maximum pincer grasp with the little finger (cm)

.77**

.59*

.31

.84

Hand closing area (cm2)

.57*

.96**

.26

.71

Hand opening area (cm2)

.88**

.79**

.23

.63

Drawing an “M” (cm)

.60*

.75**

9.01

25.01

Drawing an “S” (cm)

.90**

.92**

2.09

5.79

Drawing a “3” (cm)

.94**

.83**

1.86

5.15

Drawing a spiral (cm)

.85**

.71**

10.58

29.33

Coordination with a finger (s)

.96**

.92*

.83

2.30

Coordination with a pen (s)

.53*

.83**

3.59

9.96

Coordination with a pen involving dropping and grasping (s)

.91**

.68*

2.15

5.96

  1. Moderate or stronger correlations are highlighted in bold
  2. *p < 0.05; **p < 0.01