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Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
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Squat Kinematics Analysis Using Vicon and Affordable Motion-Capture Solutions.

Urszula Czajkowska1, Michał Popek1, Celina Pezowicz1

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A new virtual reality system offers a low-cost, portable solution for human movement analysis. This system demonstrates high repeatability, making quantitative biomechanical assessments more accessible for research and clinical practice.

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HTC Vive Trackerskinematic measurementvirtual reality

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Area of Science:

  • Biomechanics
  • Human Movement Analysis
  • Virtual Reality Technology

Background:

  • Quantitative movement analysis is vital in biomechanics and clinical settings.
  • Existing high-accuracy motion tracking systems are costly and lack portability.
  • There is a need for accessible and affordable human motion measurement solutions.

Purpose of the Study:

  • To assess a low-cost virtual reality-based motion tracking system for human movement analysis.
  • To evaluate the system's capability in describing joint movements during squatting.
  • To compare the system's repeatability with advanced optoelectronic motion capture systems.

Main Methods:

  • Utilized a virtual reality system with customized eMotion software for data acquisition.
  • Collected kinematic data and continuous tracker trajectories during squatting exercises.
  • Analyzed inter-trial variability for various joint rotations.

Main Results:

  • The virtual reality system successfully collected kinematic data and tracker trajectories.
  • The system demonstrated high repeatability, comparable to advanced motion capture systems.
  • Low variability was observed for most rotations (0.65°–2.20°), with hip and knee flexion at 3.09° and 4.01°.

Conclusions:

  • Low-cost virtual reality motion tracking offers a viable alternative for quantitative human movement analysis.
  • This technology has significant potential for training and rehabilitation applications.
  • Increased accessibility of motion measurement can advance biomechanical research and clinical practice.