Camera-tracking gaming control device for evaluation of active wrist flexion and extension

Dalit Shefer Eini, Navah Z. Ratzon, Albert A. Rizzo, Shih Ching Yeh, Belinda Lange, Batia Yaffe, Alexander Daich, Patrice L. Weiss, Rachel Kizony

Research output: Contribution to journalArticlepeer-review


Study Design Cross sectional. Introduction Measuring wrist range of motion (ROM) is an essential procedure in hand therapy clinics. Purpose of the Study To test the reliability and validity of a dynamic ROM assessment, the Camera Wrist Tracker (CWT). Methods Wrist flexion and extension ROM of 15 patients with distal radius fractures and 15 matched controls were assessed with the CWT and with a universal goniometer. Results One-way model intraclass correlation coefficient analysis indicated high test-retest reliability for extension (ICC = 0.92) and moderate reliability for flexion (ICC = 0.49). Standard error for extension was 2.45° and for flexion was 4.07°. Repeated-measures analysis revealed a significant main effect for group; ROM was greater in the control group (F[1, 28] = 47.35; P < .001). The concurrent validity of the CWT was partially supported. Conclusion The results indicate that the CWT may provide highly reliable scores for dynamic wrist extension ROM, and moderately reliable scores for flexion, in people recovering from a distal radius fracture. Level of Evidence N/A.

Original languageEnglish
Pages (from-to)89-96
Number of pages8
JournalJournal of Hand Therapy
Issue number1
StatePublished - 1 Jan 2017

Bibliographical note

Publisher Copyright:
© 2016 Hanley & Belfus


  • Camera tracking
  • Distal radius fracture
  • Evaluation
  • Gaming
  • Wrist range of motion

ASJC Scopus subject areas

  • Rehabilitation
  • Physical Therapy, Sports Therapy and Rehabilitation


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