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Table 3 Changes in standard error of measurement (SEM)

From: Reliability of a new loaded rolling wheel system for measuring spinal stiffness in asymptomatic participants

 

Single Trial

3 Trials

Mean of 3 Trials (% decrease from 1 measure)

Min Load

Max Load

Min Load

Max Load

Min Load

Max Load

Within- session SEM (N/mm) _ session 1

L5

0.2

0.4

0.1

0.2

55.0

40.0

L4

0.2

0.2

0.1

0.1

50.0

55.0

L3

1.1

1.6

0.7

0.9

39.1

41.3

L2

0.3

0.4

0.2

0.2

36.7

52.5

L1

0.9

0.7

0.5

0.4

42.2

45.7

Within- session SEM (N/mm) _ session 2

L5

0.1

0.3

0.1

0.2

30.0

33.3

L4

0.1

0.2

0.04

0.1

60.0

50.0

L3

0.1

0.3

0.03

0.2

70.0

50.0

L2

0.4

1.0

0.2

0.6

40.0

43.0

L1

0.8

0.4

0.6

0.3

20.0

30.0

Between- session SEM (N/mm)

L5

0.3

1.0

0.3

0.7

0.0

30.0

L4

0.2

0.6

0.2

0.4

0.0

33.3

L3

0.2

0.7

0.2

0.5

0.0

28.6

L2

0.4

0.6

0.3

0.6

25.0

0.0

L1

1.3

1.2

0.9

0.9

30.8

25.0

  1. Abbreviations: SEM standard error of measurements