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Table 4 Inter-rater reliability measured by the smartphone applications for each position

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

Positions

ICC (lower, upper)

SEM (°)

%SEM

LOA

Sitting IRa

0.67 (0.37, 0.84)

3.4

12.7

(-4.8, 14.7)

Sitting ERa

0.56 (0.20, 0.78)

3.3

9.9

(-3.8, 14.7)

Prone IRa

0.81 (0.71, 0.94)

4.1

10.7

(-14.6, 4.7)

Prone ERa

0.76 (0.52, 0.89)

3.9

8.8

(-14.4, 7.7)

Supine IRb

0.90 (0.79, 0.96)

2.7

4.8

(-9.9, 4.6)

Supine ERb

0.43 (0.04 0.71)

2.6

8.1

(-23.2, 12.1)

  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