@inproceedings{3a6b17f92a534fd3b59f9f81ac731f3a,
title = "Development of Thumb Endurance Curves Applicable for Deadman Switches in Sandblasting Machines",
abstract = "Thumb operated deadman switches used in sandblasting machines are designed to prevent serious bodily injury from unintentional discharge of high velocity sand. The force required to hold down the switch is significant, causing fatigue and pain to set in very quickly in operator{\textquoteright}s thumb. The objective of this study was to determine the thumb force capacity and muscle fatigue curves for thumb flexion, applicable for design of these devices. Maximum thumb pressing force (MTPF) and endurance times (ET) for holding down at force levels of 10, 20, 40, and 60% of MTPF were measured from 10 male and 10 female participants in a laboratory experiment. The best fit curves of ET as a function of %MTPF were modeled with R2 > 95%. These models should be used in matching the worker strength capacity to the thumb force requirements in deadman switch design to improve safety standards in sandblasting.",
keywords = "Deadman switch, Endurance time, Muscle fatigue, Sandblasting, Thumb pressing",
author = "Sengupta, {Arijit K.} and Ugur Oztas and Anthony Krake",
note = "Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.; 21st Congress of the International Ergonomics Association, IEA 2021 ; Conference date: 13-06-2021 Through 18-06-2021",
year = "2021",
doi = "10.1007/978-3-030-74611-7_26",
language = "English (US)",
isbn = "9783030746100",
series = "Lecture Notes in Networks and Systems",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "190--195",
editor = "Black, {Nancy L.} and Neumann, {W. Patrick} and Ian Noy",
booktitle = "Proceedings of the 21st Congress of the International Ergonomics Association, IEA 2021 - Healthcare and Healthy Work",
address = "Germany",
}