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Table 2 Concurrent validity of the goniometer with the ETS for hip ROM measurement in patients with FAI and healthy subjects

From: Validity and test-retest reliability of manual goniometers for measuring passive hip range of motion in femoroacetabular impingement patients.

 

ICC2,1

95% CI

LOA (°)

Flexion

0.440

-0.049 to 0.800

-18.92 ± 12.57b

Abduction

0.937

0.721 to 0.978

-1.95 ± 4.70b

Adduction

0.533

0.020 to 0.790

-3.32 ± 6.99b

Internal rotation

0.875

0.495 to 0.956

-3.50 ± 7.95b

External rotation

0.542

-0.087 to 0.844

-8.15 ± 8.49b

  1. ETS: electromagnetic tracking system, ROM: range of motion, FAI: femoroacetabular impingement, ICC: intraclass correlation coefficient, CI: confidence interval
  2. LOA: limits of agreement. b ETS lower than goniometer, P < 0.001. Modified LOA for data exhibiting proportional bias (x = mean value): (-0.13x - 5.71) ± 12.57 for hip flexion, (-0.22x - 2.65) ± 7.95 for internal rotation.
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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