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Table 1 Mean hip rotation angles for each position measured by the smartphone applications and the three-dimensional motion analysis

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

Positions

Smartphone

Mean ± SD

(degrees)

3DMA

Mean ± SD

(degrees)

Sitting IRa

29.4 ± 7.5

19.7 ± 6.9

Sitting ERa

36.4 ± 5.3

29.4 ± 4.7

Prone IRa

35.3 ± 10.2

29.9 ± 8.2

Prone ERa

43.4 ± 8.9

35.0 ± 7.2

Supine IRb

31.4 ± 9.0

26.5 ± 7.9

Supine ERb

52.3 ± 7.7

40.6 ± 7.4

  1. 3DMA three-dimension motion analysis; IR internal rotation; ER external rotation
  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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