Immersive virtual reality for upper limb rehabilitation: comparing hand and controller interaction.

Area of Science:

• Rehabilitation Medicine
• Human-Computer Interaction
• Virtual Reality Technology

Background:

• Virtual reality (VR) offers an engaging alternative to traditional motor rehabilitation.
• VR can immerse patients in scenarios, reducing focus on medical settings and repetitive exercises.
• Natural hand gesture interaction in VR mimics real-life actions, beneficial for motor-impaired individuals.

Purpose of the Study:

• To present a VR application with serious games for motor rehabilitation.
• To evaluate user interaction using natural hand gestures versus controllers.
• To assess the effectiveness and user preference of hand-based VR interaction for rehabilitation.

Main Methods:

• Developed a VR application with three serious games for motor rehabilitation.
• Utilized a standalone VR headset with controller-free hand gesture interaction.
• Conducted a study comparing hand interaction versus controller interaction with 28 participants (4 with motor problems).

Main Results:

• No significant difference in attempts needed to complete games between hand and controller interaction.
• Controller interaction group completed exercises faster.
• Participants overwhelmingly preferred hand interaction (78.5%), especially those with motor problems.
• Performance was independent of participant gender and age.

Conclusions:

• Hand gesture interaction in VR is a viable and preferred method for motor rehabilitation.
• Standalone VR headsets with hand tracking can enhance patient motivation and adherence to therapy.
• This technology holds potential for effective home-based motor rehabilitation exercises.