Thermoregulation of feet in cold environments: A study on alpinism
This study represents a preliminary approach to establishing a reliable protocol for assessing the thermal performance of cold protective footwear.PMID:38091693 | DOI:10.1016/j.apergo.2023.104205 (Source: Applied Ergonomics)
Source: Applied Ergonomics - December 13, 2023 Category: Occupational Health Authors: Eleonora Bianca Francesca Dotti Francesco Orrico Ada Ferri Source Type: research
Designing for passengers' information needs on fellow travelers: A comparison of day and night rides in shared automated vehicles
Appl Ergon. 2023 Dec 12;116:104198. doi: 10.1016/j.apergo.2023.104198. Online ahead of print.ABSTRACTShared automated mobility-on-demand promises efficient, sustainable, and flexible transportation. Nevertheless, security concerns, resilience, and their mutual influence - especially at night - will likely be the most critical barriers to public adoption since passengers have to share rides with strangers without a human driver on board. Prior research points out that having information about fellow travelers could alleviate the concerns of passengers and we designed two user interface variants to investigate the role of th...
Source: Applied Ergonomics - December 13, 2023 Category: Occupational Health Authors: Lukas A Flohr Martina Schu ß Dieter P Wallach Antonio Kr üger Andreas Riener Source Type: research
Validation of the Borg CR10 Scale for the evaluation of shoulder perceived fatigue during work-related tasks
The objective was to validate the Borg CR10 for the evaluation of shoulder perceived fatigue during lifting tasks. Seventy adults in working age performed three rhythmic lifting tasks with two loads (15% and 30% of maximal voluntary contraction). Using generalized repeated-measures ANOVA (Generalized Estimating Equations), statistically significant Task and Load effects (p < 0.001), as well as Task × Load interaction effects (p < 0.0001) were observed on Borg CR10, without any influence of sex. The Borg CR10 is a valid tool to assess shoulder perceived fatigue as it can discriminate between tasks of different diffic...
Source: Applied Ergonomics - December 13, 2023 Category: Occupational Health Authors: Antoine Frasie Micha ël Bertrand-Charette Maxence Compagnat Laurent J Bouyer Jean-S ébastien Roy Source Type: research
Thermoregulation of feet in cold environments: A study on alpinism
This study represents a preliminary approach to establishing a reliable protocol for assessing the thermal performance of cold protective footwear.PMID:38091693 | DOI:10.1016/j.apergo.2023.104205 (Source: Applied Ergonomics)
Source: Applied Ergonomics - December 13, 2023 Category: Occupational Health Authors: Eleonora Bianca Francesca Dotti Francesco Orrico Ada Ferri Source Type: research
Designing for passengers' information needs on fellow travelers: A comparison of day and night rides in shared automated vehicles
Appl Ergon. 2023 Dec 12;116:104198. doi: 10.1016/j.apergo.2023.104198. Online ahead of print.ABSTRACTShared automated mobility-on-demand promises efficient, sustainable, and flexible transportation. Nevertheless, security concerns, resilience, and their mutual influence - especially at night - will likely be the most critical barriers to public adoption since passengers have to share rides with strangers without a human driver on board. Prior research points out that having information about fellow travelers could alleviate the concerns of passengers and we designed two user interface variants to investigate the role of th...
Source: Applied Ergonomics - December 13, 2023 Category: Occupational Health Authors: Lukas A Flohr Martina Schu ß Dieter P Wallach Antonio Kr üger Andreas Riener Source Type: research
Determining the effects of AR/VR HMD design parameters (mass and inertia) on cervical spine joint torques
This study aimed to determine gravitational and dynamic torques and muscle activity of the neck across a series of design parameters of head mounted displays (mass, center of mass, and counterweights) associated with virtual and augmented reality (VR/AR). Twenty young adult participants completed five movement types (Slow and Fast Flexion/Extension and Rotation, and Search) while wearing a custom-designed prototype headset that varied the three design parameters: display mass (0, 200, 500, and 750 g), distance of the display's center of mass in front of the eyes (approximately 1, 3, and 5 cm anteriorly), and counterweights...
Source: Applied Ergonomics - December 10, 2023 Category: Occupational Health Authors: Amanda N Astrologo Sarah Nano Elizabeth M Klemm Sandra J Shefelbine Jack T Dennerlein Source Type: research
Determining the effects of AR/VR HMD design parameters (mass and inertia) on cervical spine joint torques
This study aimed to determine gravitational and dynamic torques and muscle activity of the neck across a series of design parameters of head mounted displays (mass, center of mass, and counterweights) associated with virtual and augmented reality (VR/AR). Twenty young adult participants completed five movement types (Slow and Fast Flexion/Extension and Rotation, and Search) while wearing a custom-designed prototype headset that varied the three design parameters: display mass (0, 200, 500, and 750 g), distance of the display's center of mass in front of the eyes (approximately 1, 3, and 5 cm anteriorly), and counterweights...
Source: Applied Ergonomics - December 10, 2023 Category: Occupational Health Authors: Amanda N Astrologo Sarah Nano Elizabeth M Klemm Sandra J Shefelbine Jack T Dennerlein Source Type: research
Determining the effects of AR/VR HMD design parameters (mass and inertia) on cervical spine joint torques
This study aimed to determine gravitational and dynamic torques and muscle activity of the neck across a series of design parameters of head mounted displays (mass, center of mass, and counterweights) associated with virtual and augmented reality (VR/AR). Twenty young adult participants completed five movement types (Slow and Fast Flexion/Extension and Rotation, and Search) while wearing a custom-designed prototype headset that varied the three design parameters: display mass (0, 200, 500, and 750 g), distance of the display's center of mass in front of the eyes (approximately 1, 3, and 5 cm anteriorly), and counterweights...
Source: Applied Ergonomics - December 10, 2023 Category: Occupational Health Authors: Amanda N Astrologo Sarah Nano Elizabeth M Klemm Sandra J Shefelbine Jack T Dennerlein Source Type: research
Morphological analysis of the human earcanal deformations during face-related activities
Appl Ergon. 2023 Dec 8;116:104195. doi: 10.1016/j.apergo.2023.104195. Online ahead of print.ABSTRACTEar-related technologies are spreading in our daily life and have become essential in several applications. The comfort, retention and battery life of in-ear devices can be substantially improved by considering the dynamic behavior of the earcanal. A better understanding of the earcanal dynamic motion would not only result in the improved fit and performance of earpieces but could also pave the way to harvest energy from these movements to power future ear-related technologies. The contours of the left and right ears of 18 h...
Source: Applied Ergonomics - December 9, 2023 Category: Occupational Health Authors: Michel Demuynck Aidin Delnavaz J érémie Voix Source Type: research
Morphological analysis of the human earcanal deformations during face-related activities
Appl Ergon. 2023 Dec 8;116:104195. doi: 10.1016/j.apergo.2023.104195. Online ahead of print.ABSTRACTEar-related technologies are spreading in our daily life and have become essential in several applications. The comfort, retention and battery life of in-ear devices can be substantially improved by considering the dynamic behavior of the earcanal. A better understanding of the earcanal dynamic motion would not only result in the improved fit and performance of earpieces but could also pave the way to harvest energy from these movements to power future ear-related technologies. The contours of the left and right ears of 18 h...
Source: Applied Ergonomics - December 9, 2023 Category: Occupational Health Authors: Michel Demuynck Aidin Delnavaz J érémie Voix Source Type: research
Factors influencing the likelihood of females passing the Ottawa paramedic physical ability test
Appl Ergon. 2023 Dec 5;116:104187. doi: 10.1016/j.apergo.2023.104187. Online ahead of print.ABSTRACTThe Ottawa Paramedic Physical Ability Test (OPPAT) was launched in Ontario as a physical employment standard for front-line paramedics. When considering pass rates based on sex, males had a higher likelihood of passing than females. To help understand how to improve pass rates among females we aimed to understand if factors such as participant demographics, college type, employment status and/or peak heart rate (a surrogate of fitness level) were related to OPPAT pass rates. Females who were employed, who were educated in a ...
Source: Applied Ergonomics - December 6, 2023 Category: Occupational Health Authors: Alexander L Malone Daniel P Armstrong Ren ée S MacPhee Steven L Fischer Source Type: research
Factors influencing the likelihood of females passing the Ottawa paramedic physical ability test
Appl Ergon. 2023 Dec 5;116:104187. doi: 10.1016/j.apergo.2023.104187. Online ahead of print.ABSTRACTThe Ottawa Paramedic Physical Ability Test (OPPAT) was launched in Ontario as a physical employment standard for front-line paramedics. When considering pass rates based on sex, males had a higher likelihood of passing than females. To help understand how to improve pass rates among females we aimed to understand if factors such as participant demographics, college type, employment status and/or peak heart rate (a surrogate of fitness level) were related to OPPAT pass rates. Females who were employed, who were educated in a ...
Source: Applied Ergonomics - December 6, 2023 Category: Occupational Health Authors: Alexander L Malone Daniel P Armstrong Ren ée S MacPhee Steven L Fischer Source Type: research
Factors influencing the likelihood of females passing the Ottawa paramedic physical ability test
Appl Ergon. 2023 Dec 5;116:104187. doi: 10.1016/j.apergo.2023.104187. Online ahead of print.ABSTRACTThe Ottawa Paramedic Physical Ability Test (OPPAT) was launched in Ontario as a physical employment standard for front-line paramedics. When considering pass rates based on sex, males had a higher likelihood of passing than females. To help understand how to improve pass rates among females we aimed to understand if factors such as participant demographics, college type, employment status and/or peak heart rate (a surrogate of fitness level) were related to OPPAT pass rates. Females who were employed, who were educated in a ...
Source: Applied Ergonomics - December 6, 2023 Category: Occupational Health Authors: Alexander L Malone Daniel P Armstrong Ren ée S MacPhee Steven L Fischer Source Type: research
Biomechanical requirements of meat cutting tasks: A pilot study quantifying tasks sustainability and assistance required at the wrist
Appl Ergon. 2023 Dec 4;116:104186. doi: 10.1016/j.apergo.2023.104186. Online ahead of print.ABSTRACTThe meat processing industry is particularly affected by distal upper limb musculoskeletal disorders. This pilot study aims at proposing a methodology able to quantify biomechanical requirements of meat cutting tasks at butchers' dominant wrist and, when necessary, at estimating the assistance needed to reach sustainability. Six professional butchers repeatedly cut pieces of pork. Joint angles were recorded using a motion capture system, cutting forces using an instrumented knife. Sustainability was computed by the maximal a...
Source: Applied Ergonomics - December 5, 2023 Category: Occupational Health Authors: Divyaksh Subhash Chander Aur élie Tomezzoli Maria Pia Cavatorta Mathieu Gr éau St éphane Marie Charles Pontonnier Source Type: research
Biomechanical requirements of meat cutting tasks: A pilot study quantifying tasks sustainability and assistance required at the wrist
Appl Ergon. 2023 Dec 4;116:104186. doi: 10.1016/j.apergo.2023.104186. Online ahead of print.ABSTRACTThe meat processing industry is particularly affected by distal upper limb musculoskeletal disorders. This pilot study aims at proposing a methodology able to quantify biomechanical requirements of meat cutting tasks at butchers' dominant wrist and, when necessary, at estimating the assistance needed to reach sustainability. Six professional butchers repeatedly cut pieces of pork. Joint angles were recorded using a motion capture system, cutting forces using an instrumented knife. Sustainability was computed by the maximal a...
Source: Applied Ergonomics - December 5, 2023 Category: Occupational Health Authors: Divyaksh Subhash Chander Aur élie Tomezzoli Maria Pia Cavatorta Mathieu Gr éau St éphane Marie Charles Pontonnier Source Type: research
