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Table 2 Validity of the smartphone applications versus the 3DMA for each position

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

Position

ICC (lower, upper)

SEM (°)

%SEM

LOA

Sitting IRa

0.89 (0.83, 0.93)

2.9

11.7

(16.5, 3.1)

Sitting ERa

0.70 (0.56, 0.80)

3.5

10.7

(15.2, -1.0)

Prone IRa

0.81 (0.71, 0.86)

4.3

13.1

(16.9, -6.1)

Prone ERa

0.79 (0.68, 0.86)

4.2

10.7

(18.7, -2.2)

Supine IRb

0.94 (0.91, 0.96)

2.2

7.5

(10.7, -0.9)

Supine ERb

0.73 (0.60, 0.82)

5.0

10.8

(22.8, 0.5)

  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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