ITcon Vol. 30, pg. 875-902, http://www.itcon.org/2025/36

Wearable Sensor-Based Fatigue Classification Under Diverse Thermal Conditions. Journal of Information Technology in Construction

DOI:10.36680/j.itcon.2025.036
submitted:January 2025
revised:April 2025
published:May 2025
editor(s):Žiga Turk
authors:Muhammad Khan, Ph.D
Safety Innovation Integration Research (SIIR) Lab, Department of Construction Science, Texas A&M University, 574 Ross St, College Station, TX 77840, United States
ORCID: https://orcid.org/0000-0002-0838-9087
mkhan13@tamu.edu

Sharjeel Anjum, Ph.D
Safety Innovation Integration Research (SIIR) Lab, Department of Construction Science, Texas A&M University, 574 Ross St, College Station, TX 77840, United States
ORCID:https://orcid.org/0000-0003-0678-7994
muhammadanjum@tamu.edu

Abdullahi Ibrahim, Ph.D
Safety Innovation Integration Research (SIIR) Lab, Department of Construction Science, Texas A&M University, 574 Ross St, College Station, TX 77840, United States
ORCID:https://orcid.org/0000-0003-2373-3269
aaibrahim@tamu.edu

Chukwuma Nnaji, Ph.D
Safety Innovation Integration Research (SIIR) Lab, Department of Construction Science, Texas A&M University, 574 Ross St, College Station, TX 77840, United States
ORCID:https://orcid.org/0000-0002-3725-4376
cnnaji@tamu.edu

Ashrant Aryal, Ph.D
Human-centered Intelligent Built Environments (HIBE) Lab, Department of Construction Science, Texas A&M University, 574 Ross St, College Station, TX 77840, United States
ORCID:https://orcid.org/0000-0003-4610-1539
aaryal@tamu.edu

Amanda S. Koh, Ph.D
Department of Chemical and Biological Engineering, The University of Alabama, 7th Avenue, Tuscaloosa, AL 35487, USA
ORCID:https://orcid.org/0000-0003-3960-3872
askoh@eng.ua.edu
summary:Fatigue induced by physical exertion and environmental stress remains a critical safety concern in construction and other physically demanding industries. This paper investigates whether integrating wearable sensor data (EMG, HR, HRV) and thermal conditions (hot, room, cold) can improve real-time fatigue prediction. Physiological signals were collected using wearable sensors, processed through noise filtering and feature extraction, and classified using Random Forest Classifier and Extreme Gradient Boosting algorithms. The models demonstrated high predictive accuracy, achieving 80% for continuous fatigue levels and over 90% for categorical fatigue classes. These findings are particularly valuable for construction safety managers, occupational health researchers, and technology developers seeking proactive fatigue management solutions. Future research should focus on field validation of wearable systems and integration with site management platforms such as BIM for broader industry adoption.
keywords:Health and Safety, Physical exertion, Fatigue monitoring, Wearable Sensor, Machine learning
full text: (PDF file, 1.086 MB)
citation:Khan M, Anjum S, Ibrahim A, Nnaji C, Aryal A, Koh A S (2025). Wearable Sensor-Based Fatigue Classification Under Diverse Thermal Conditions. Journal of Information Technology in Construction, ITcon Vol. 30, pg. 875-902, https://doi.org/10.36680/j.itcon.2025.036
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