Thermal-Response Heterogeneity in Passive Wearable Robotics: A Pilot Study on Task-Induced Heat Buildup

Document Type

Conference Proceeding

Publication Date

1-1-2025

Abstract

The construction industry involves numerous physically demanding tasks that elevate the risk of work-related musculoskeletal disorders (WMSDs), often due to awkward postures, repetitive motion, and limited recovery. Passive exoskeletons have been introduced to reduce physical strain and support safer task execution. However, limited research has explored the thermal response of users immediately after task completion. This pilot study aimed to investigate sex-based differences in thermal response during vertical ladder climbing while wearing a passive waist-assist exoskeleton. A controlled laboratory experiment was conducted with one male and one female participant, both wearing a passive exoskeleton device. Thermal images were captured before and after the activity using a handheld infrared camera. Results revealed localized heat accumulation in both participants following doffing, with the female participant exhibiting greater increases in skin temperature, particularly in the crural and femoral regions. The male participant showed smaller changes, with a slight temperature decrease in the thorax back. These findings indicate that thermal buildup is region-specific and may vary by sex, even when using the same exoskeleton model and performing the same task. While limited by sample size, this study highlights the need to evaluate thermal effects when assessing the performance and comfort of wearable assistive devices. Future research should expand the participant pool and explore additional variables such as activity duration, ambient temperature, and clothing insulation to better understand factors influencing thermal load during exoskeleton use.

Publication Source (Journal or Book title)

Iise Annual Conference and Expo 2025 Conference Proceedings

First Page

1436

Last Page

1441

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