Exploring Acceptable Weight Criteria for Finger-Worn Haptic Device Design.

Area of Science:

• Human-Computer Interaction
• Wearable Technology
• Ergonomics

Background:

• Finger-worn haptic devices offer advanced functionality but face design challenges due to weight.
• Increased device weight can impede wearer dexterity and comfort, hindering adoption.
• Current research lacks clear weight criteria for continuous wear of such devices.

Purpose of the Study:

• To establish acceptable weight criteria for finger-worn haptic devices during continuous wear.
• To investigate the impact of device weight on performance during common office tasks.
• To determine if device placement affects performance and user perception.

Main Methods:

• Participants performed pointing and typing tasks wearing a finger-worn haptic device mockup.
• Device weight was manipulated (0, 20, 40, 60g) and placement varied (proximal, distal).
• Task performance (speed, accuracy) and subjective user load were measured.

Main Results:

• Device weight up to 60g did not significantly degrade performance in pointing or typing tasks.
• Device placement (proximal vs. distal) did not affect task performance.
• Subjective user load ratings increased under certain conditions with heavier devices.

Conclusions:

• Finger-worn haptic devices weighing up to 60g are suitable for office environments without compromising task performance.
• Weight is a less critical factor than previously assumed for short-term office tasks.
• Future designs can prioritize functionality, considering up to 60g acceptable for index finger devices.