An Optoelectronic System for Measuring the Range of Motion in Healthy Volunteers: A Cross-Sectional Study
Open Access
- 22 August 2019
- Vol. 55 (9), 516
- https://doi.org/10.3390/medicina55090516
Abstract
Background and Objectives: Within the clinical evaluation of multiple pathologies of the lower limb, the measurement of range of motion (ROM) of its joints is fundamental. To this end, there are various tools, from the goniometer as a reference to more recent devices such as inclinometry-based applications, photo capture applications, or motion capture systems. This study aimed to assess the validity, intra-rater, and inter-rater reliability of the VeloFlex system (VS), which is a new camera-based tool designed for tracking joint trajectories and measuring joint ROM. Materials and Methods: Thirty-five healthy volunteers (16 females; aged 18–61 years) participated in this study. All participants were assessed on two separate occasions, one week apart. During the first assessment session, measurements were obtained using a goniometer and the VS, whereas, in the second session, only the VS was used. In each assessment session, nine active movements were examined. For each movement, three trials were tested, and the mean of these three measures was used for analysis. To evaluate the concurrent validity and agreement, the Pearson correlation coefficient (r) and Bland-Altmann plots were used. Intra-rater and inter-rater reliability were evaluated using intra-class correlation (ICC), standard error of measurement (SEM), and minimal detectable change (MDC). Results: Both devices showed excellent correlations for all movements (r ranged from 0.992 to 0.999). The intra-rater reliability of the VS was excellent (ICC ranged from 0.93 to 0.99), SEMs ranged from 0.53% to 2.61% and the MDC ranged from 0.68° to 3.26°. The inter-rater reliability of the VS was also excellent (ICC ranged from 0.88 to 0.98), SEMs ranged from 0.81% to 4.76% and the MDC ranged from 2.27° to 4.42°. Conclusions: The VS is a valid and reliable tool for the measurement of ROM of lower limb joints in healthy subjects.Keywords
This publication has 21 references indexed in Scilit:
- Hip stability after total hip arthroplasty predicted by intraoperative stability test and range of motion: a cross-sectional studyBMC Musculoskeletal Disorders, 2018
- Agreement Between Face-to-Face and Free Software Video Analysis for Assessing Hamstring Flexibility in AdolescentsJournal of Strength and Conditioning Research, 2015
- Validity of the MarkWiiR for kinematic analysis during walking and running gaitsBiology of Sport, 2014
- Concurrent validity and reliability of the Simple Goniometer iPhone app compared with the Universal GoniometerPhysiotherapy Theory and Practice, 2014
- Reliability of a smartphone-based goniometer for knee joint goniometryInternational Journal of Rehabilitation Research, 2013
- Evaluating the Hip Range of Motion Using the Goniometer and Video Tracking MethodsProcedia Engineering, 2013
- Reproducibility of a 3-dimensional gyroscope in measuring shoulder anteflexion and abductionBMC Musculoskeletal Disorders, 2012
- Design and validation of a portable, inexpensive and multi-beam timing light system using the Nintendo Wii hand controllersJournal of Science and Medicine in Sport, 2011
- Changes in Active Ankle Dorsiflexion Range of Motion after Acute Inversion Ankle SprainJournal of Sport Rehabilitation, 2009
- Clinical Measurement of Range of MotionPTJ: Physical Therapy & Rehabilitation Journal, 1987