The validity of an objective measurement method using the Leap Motion Controller for fingers wrist, and forearm ranges of motion

ARMAN S. N. , Oktay A. B. , Tarakci D., Tarakci E., Akgul Y. S.

HAND SURGERY & REHABILITATION, vol.40, no.4, pp.394-399, 2021 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 4
  • Publication Date: 2021
  • Doi Number: 10.1016/j.hansur.2021.03.007
  • Page Numbers: pp.394-399
  • Keywords: Range of motion, Hand, Leap Motion Sensor, Goniometer, Motion capture, RELIABILITY


The present study aimed to validate the Leap Motion Controller (LMC)-based Fizyosoft (R) HandROM System developed by our team to evaluate range of motion (ROM) for fingers, wrist, and forearm in a new clinical setting. Thirty-five healthy individuals participated in the study (all right-handed, 20-30 years old). The LMC-based Fizyosoft (R) HandROM System is a licensed software ROM-measurement developed by our team. Pronation/supination, wrist flexion/extension, ulnar/radial deviation and metacarpophalangeal (MCP) flexion/extension of all fingers were measured with both the Fizyosoft (R) HandROM System and a universal goniometer. No significant differences were found between the two measurement methods for almost all mean ROMs except for ulnar and radial deviation (p > 0.05). Highly significant correlations were found between all ROMs of the forearm, wrist, and thumb (p < 0.01). MCP flexion showed significant correlation only in the index finger (r = 0.516, p = 0.003) and little finger (r = 0.517, p = 0.004). Besides, for both measures, the intraclass correlations were good to excellent on all ROMs of the forearm, wrist, and fingers except for MCP of the middle and ring fingers (0.68-0.88). The present study results indicated that the LMC-based Fizyosoft (R) HandROM System could sensitively track changes in the active motion of the thumb, wrist, and forearm. It is a viable alternative for assessing ROMs of the forearm, wrist, and thumb in patient follow-up. (C) 2021 SFCM. Published by Elsevier Masson SAS. All rights reserved.