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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