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Table 3 Tibial reliability data

From: Clinical utility of tibial motor and sensory nerve conduction studies with motor recording from the flexor hallucis brevis: a methodological and reliability study

   

Mean ± SD

ICC (3,1)

P value

MDC

CV

variable

CV

model

Motor Flexor hallucis brevis

Latency (ms)

Baseline

4.2 ± 0.9

0.2

0.003

 

0.16

 
  

8 wks

4.2 ± 0.7

  

1.63

0.14

0.24

  

16 wks

4.3 ± 0.6

  

1.38

0.14

0.14

  

24 wks

4.3 ± 0.6

  

1.38

0.13

0.12

 

Amplitude (mV)

Baseline

7.9 ± 2.9

0.5

< 0.001

 

0.36

 
  

8 wks

8.4 ± 2.7

  

4.97

0.32

0.31

  

16 wks

9.3 ± 2.7

  

4.69

0.29

0.23

  

24 wks

8.4 ± 2.8

  

4.69

0.34

0.20

 

Velocity (m/s)

Baseline

45.3 ± 3.1

0.4

< 0.001

 

0.07

 
  

8 wks

44.5 ± 2.9

  

4.97

0.06

0.06

  

16 wks

44.1 ± 2.7

  

4.69

0.06

0.05

  

24 wks

43.9 ± 2.7

  

4.86

0.06

0.04

Medial plantar sensory

Latency (ms)

Baseline

2.8 ± 0.3

0.5

< 0.001

 

0.10

 
  

8 wks

2.8 ± 0.3

  

0.52

0.10

0.09

  

16 wks

2.8 ± 0.3

  

0.52

0.10

0.08

  

24 wks

2.8 ± 0.3

  

0.52

0.10

0.08

 

Amplitude (μV)

Baseline

27.7 ± 9.8

0.5

< 0.001

 

0.35

 
  

8 wks

26.7 ± 9.4

  

16.34

0.36

0.31

  

16 wks

28.7 ± 11.1

  

17.22

0.39

0.27

  

24 wks

26.9 ± 10.3

  

17.91

0.39

0.31

 

Velocity (m/s)

Baseline

41.0 ± 3.2

0.4

< 0.001

 

0.08

 
  

8 wks

45.3 ± 4.6

  

8.58

0.10

0.10

  

16 wks

44.3 ± 4.0

  

7.81

0.09

0.09

  

24 wks

43.8 ± 4.4

  

8.39

0.10

0.08

Lateral plantar sensory

Latency (ms)

Baseline

3.2 ± 0.3

0.3

< 0.001

 

0.10

 
  

8 wks

2.9 ± 0.3

  

0.64

0.10

0.15

  

16 wks

2.9 ± 0.3

  

0.64

0.10

0.10

  

24 wks

2.9 ± 0.3

  

0.64

0.10

0.09

 

Amplitude (μV)

Baseline

15.8 ± 7.1

0.2

0.007

 

0.45

 
  

8 wks

14.9 ± 5.1

  

10.90

0.36

0.44

  

16 wks

14.9 ± 5.0

  

10.30

0.34

0.34

  

24 wks

15.2 ± 5.8

  

11.60

0.39

0.40

 

Velocity (m/s)

Baseline

43.6 ± 3.4

0.4

< 0.001

 

0.08

 
  

8 wks

47.5 ± 4.1

  

8.77

0.09

0.09

  

16 wks

46.4 ± 4.4

  

9.38

0.10

0.09

  

24 wks

46.8 ± 4.6

  

9.83

0.10

0.08

  1. Serial tibial nerve values (mean ± SD) for participants completing the reliability study (baseline, 8 wks, 16 wks, 24 wks) with intraclass correlation coefficient (ICC) values, corresponding P values, variable coefficient of variation and model coefficient of variation (CV) values