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Table 3 Intra-rater reliability measured by the smartphone applications and the 3DMA for each position

From: Validity and reliability of smartphone applications for measurement of hip rotation, compared with three‐dimensional motion analysis

Positions

Rater A

Rater B

ICC (lower, upper)

SEM (°)

%SEM

LOA

ICC (lower, upper)

SEM (°)

%SEM

LOA

Sitting IRa

0.97 (0.94, 0.99)

1.33

4.5

(-2.4, 4.6)

0.87 (0.71, 0.94)

0.78

3.2

(-5.6, 3.6)

Sitting ERa

0.89 (0.77, 0.95)

1.85

5.1

(-4.9, 5.2)

0.93 (0.84, 0.97)

1.19

3.9

(-4.1, 2.6)

Prone IRa

0.91 (0.81, 0.96)

3.22

9.3

(-11.2, 6.2)

0.87 (0.72, 0.94)

3.04

7.6

(-11.0, 5.8)

Prone ERa

0.90 (0.78, 0.95)

2.8

6.4

(-8.1, 7.7)

0.88 (0.74, 0.95)

2.59

5.6

(-7.8, 6.7)

Supine IRb

0.93 (0.84, 0.97)

2.48

7.8

(-7.4, 6.8)

0.93 (0.84, 0.97)

2.18

6.4

(-8.8, 3.4)

Supine ERb

0.88 (0.74, 0.95)

2.77

5.3

(-6.5, 9.1)

0.85 (0.69, 0.93)

3.68

7.0

(-11.9, 8.4)

  1. IR internal rotation; ER external rotation; ICC intraclass correlation coefficient; SEM standard error of measurement; LOA limit of agreement
  2. a Measured by The Bubble Level and Clinometer
  3. b Measured by The Accurate Compass
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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