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Table 1 Test-retest reliability of the muscle onset times

From: Does a SLAP lesion affect shoulder muscle recruitment as measured by EMG activity during a rugby tackle?

 

Pectoralis Major

(Msec)

Biceps Brachii

(Msec)

Latissimus Dorsi

(Msec)

Serratus Anterior

(Msec)

Infraspinatus

(Msec)

Mean difference

1.7

1.3

1.3

1.9

2.0

Standard Deviation (SD)

1

1

0.6

1.1

1.1

Standard error of measurement (SEM)

0.33

0.39

0.22

0.35

0.4

Confidence interval (95%)

1.06-2.34

0.87-2.06

0.87-1.73

1.21-2.59

1.22-2.78

ICC3,k

0.89*

0.85*

0.87*

0.9*

0.87*

  1. * Statistical Significant (p < 0.01)
  2. 95% CI = 1.96 × SEM (54)
  3. SEM = SD × √1-ICC (54)
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X