Influence of an upper limb exoskeleton on muscle activity during various construction and manufacturing tasks
In this study, the influence of an upper limb exoskeleton on muscle activity was investigated experimentally for three commonly performed tasks in the manufacturing and construction sectors. The tasks tested were overhead assembly, bricklaying, and box moving tasks. Eighteen males participated in the tests. The results showed a reduction in shoulder flexor muscle activation during all three tasks (up to -45.46 ± 4.52% for the anterior deltoid), but increased extensor activation (up to 15.47 ± 8.01% for the latissimus dorsi) was observed when the task was not primarily performed above shoulder level. The results revealed ...
Source: Applied Ergonomics - October 27, 2023 Category: Occupational Health Authors: Matteo Musso Anderson Souza Oliveira Shaoping Bai Source Type: research
Influence of an upper limb exoskeleton on muscle activity during various construction and manufacturing tasks
In this study, the influence of an upper limb exoskeleton on muscle activity was investigated experimentally for three commonly performed tasks in the manufacturing and construction sectors. The tasks tested were overhead assembly, bricklaying, and box moving tasks. Eighteen males participated in the tests. The results showed a reduction in shoulder flexor muscle activation during all three tasks (up to -45.46 ± 4.52% for the anterior deltoid), but increased extensor activation (up to 15.47 ± 8.01% for the latissimus dorsi) was observed when the task was not primarily performed above shoulder level. The results revealed ...
Source: Applied Ergonomics - October 27, 2023 Category: Occupational Health Authors: Matteo Musso Anderson Souza Oliveira Shaoping Bai Source Type: research
Modeling novice law enforcement officers' interaction with in-vehicle technology
The objective of this study was to develop a cognitive performance model for novice law enforcement officers (N-CPM) to model their performance and memory load while interacting with in-vehicle technology. The model was validated based on a ride-along study with 10 novice law enforcement officers (nLEOs). The findings suggested that there were no significant differences between the N-CPM and observation data in most cases, while the results of the benchmark model were different from that of N-CPM. The model can be applied to improve future nLEO's patrol mission performance through redesigning in-vehicle technologies and tr...
Source: Applied Ergonomics - October 26, 2023 Category: Occupational Health Authors: Junho Park David Wozniak Maryam Zahabi Source Type: research
Can biofeedback training in combination with ergonomic information reduce pain among young adult computer users with neck and upper extremity symptoms? - A randomized controlled intervention study
Appl Ergon. 2023 Oct 24;114:104155. doi: 10.1016/j.apergo.2023.104155. Online ahead of print.ABSTRACTThe aim of this randomized controlled study was to explore if an intervention with biofeedback training in combination with ergonomic discussions, could improve working technique and work postures, and reduce pain intensity and perceived exertion in young adult computer users with ongoing neck and upper extremity symptoms. 39 participants were divided into an intervention group and a control group. The intervention consisted of 4 sessions during a three-month period. Working technique, working postures, rated perceived exer...
Source: Applied Ergonomics - October 26, 2023 Category: Occupational Health Authors: A Lindeg ård A Grimby-Ekman J Wahlstr öm E Gustafsson Source Type: research
Modeling novice law enforcement officers' interaction with in-vehicle technology
The objective of this study was to develop a cognitive performance model for novice law enforcement officers (N-CPM) to model their performance and memory load while interacting with in-vehicle technology. The model was validated based on a ride-along study with 10 novice law enforcement officers (nLEOs). The findings suggested that there were no significant differences between the N-CPM and observation data in most cases, while the results of the benchmark model were different from that of N-CPM. The model can be applied to improve future nLEO's patrol mission performance through redesigning in-vehicle technologies and tr...
Source: Applied Ergonomics - October 26, 2023 Category: Occupational Health Authors: Junho Park David Wozniak Maryam Zahabi Source Type: research
Can biofeedback training in combination with ergonomic information reduce pain among young adult computer users with neck and upper extremity symptoms? - A randomized controlled intervention study
Appl Ergon. 2023 Oct 24;114:104155. doi: 10.1016/j.apergo.2023.104155. Online ahead of print.ABSTRACTThe aim of this randomized controlled study was to explore if an intervention with biofeedback training in combination with ergonomic discussions, could improve working technique and work postures, and reduce pain intensity and perceived exertion in young adult computer users with ongoing neck and upper extremity symptoms. 39 participants were divided into an intervention group and a control group. The intervention consisted of 4 sessions during a three-month period. Working technique, working postures, rated perceived exer...
Source: Applied Ergonomics - October 26, 2023 Category: Occupational Health Authors: A Lindeg ård A Grimby-Ekman J Wahlstr öm E Gustafsson Source Type: research
Following car reduces motorcycles' size-arrival effect: A study using online experiments
Appl Ergon. 2023 Oct 22;114:104153. doi: 10.1016/j.apergo.2023.104153. Online ahead of print.ABSTRACTMany fatal motorcycle accidents occur because car drivers infringe on motorcycle riders' right-of-way. The size-arrival effect refers to observers' tendency to judge larger objects as arriving sooner than smaller objects when estimating an approaching object's arrival time, which is one cause of right-of-way motorcycle accidents. Previous research has focused on a single vehicle that approaches the driver. However, it is also possible that a motorcycle approaches a driver along with other vehicles driving on multiple-lane r...
Source: Applied Ergonomics - October 24, 2023 Category: Occupational Health Authors: Yanbin Wu Ken Kihara Yuji Takeda Source Type: research
Following car reduces motorcycles' size-arrival effect: A study using online experiments
Appl Ergon. 2023 Oct 22;114:104153. doi: 10.1016/j.apergo.2023.104153. Online ahead of print.ABSTRACTMany fatal motorcycle accidents occur because car drivers infringe on motorcycle riders' right-of-way. The size-arrival effect refers to observers' tendency to judge larger objects as arriving sooner than smaller objects when estimating an approaching object's arrival time, which is one cause of right-of-way motorcycle accidents. Previous research has focused on a single vehicle that approaches the driver. However, it is also possible that a motorcycle approaches a driver along with other vehicles driving on multiple-lane r...
Source: Applied Ergonomics - October 24, 2023 Category: Occupational Health Authors: Yanbin Wu Ken Kihara Yuji Takeda Source Type: research
Positive effects of blue light on motor coordination in older adults: A pilot study
CONCLUSION: Blue-enriched lighting demonstrates a novel approach to positively impact postural control and motor coordination in older adults. By impacting metrics associated with fall risk, light interventions may provide a clinical countermeasure to decrease the human costs of falls.PMID:37866103 | DOI:10.1016/j.apergo.2023.104156 (Source: Applied Ergonomics)
Source: Applied Ergonomics - October 22, 2023 Category: Occupational Health Authors: C Martyn Beaven Liis Uiga Kim H ébert-Losier Source Type: research
Positive effects of blue light on motor coordination in older adults: A pilot study
CONCLUSION: Blue-enriched lighting demonstrates a novel approach to positively impact postural control and motor coordination in older adults. By impacting metrics associated with fall risk, light interventions may provide a clinical countermeasure to decrease the human costs of falls.PMID:37866103 | DOI:10.1016/j.apergo.2023.104156 (Source: Applied Ergonomics)
Source: Applied Ergonomics - October 22, 2023 Category: Occupational Health Authors: C Martyn Beaven Liis Uiga Kim H ébert-Losier Source Type: research
Positive effects of blue light on motor coordination in older adults: A pilot study
CONCLUSION: Blue-enriched lighting demonstrates a novel approach to positively impact postural control and motor coordination in older adults. By impacting metrics associated with fall risk, light interventions may provide a clinical countermeasure to decrease the human costs of falls.PMID:37866103 | DOI:10.1016/j.apergo.2023.104156 (Source: Applied Ergonomics)
Source: Applied Ergonomics - October 22, 2023 Category: Occupational Health Authors: C Martyn Beaven Liis Uiga Kim H ébert-Losier Source Type: research
Identifying interaction types and functionality for automated vehicle virtual assistants: An exploratory study using speech acts cluster analysis
This study explores 'interaction types' used for this complex human-machine transaction, by analysing how situation information is conveyed and reciprocated during a transfer of control scenario. Two human drivers alternated control in a bespoke, dual controlled driving simulator with the transfer of control being entirely reliant on verbal communication. Handover dialogues were coded based on speech-act classifications, and a cluster analysis was conducted. Four interaction types were identified for both virtual assistants (i.e., agent handing over control) - Supervisor, Information Desk, Interrogator and Converser, and d...
Source: Applied Ergonomics - October 19, 2023 Category: Occupational Health Authors: Jediah R Clark David R Large Emily Shaw Elena Nichele Maria J Galvez Trigo Joel E Fischer Gary Burnett Neville A Stanton Source Type: research
Identifying interaction types and functionality for automated vehicle virtual assistants: An exploratory study using speech acts cluster analysis
This study explores 'interaction types' used for this complex human-machine transaction, by analysing how situation information is conveyed and reciprocated during a transfer of control scenario. Two human drivers alternated control in a bespoke, dual controlled driving simulator with the transfer of control being entirely reliant on verbal communication. Handover dialogues were coded based on speech-act classifications, and a cluster analysis was conducted. Four interaction types were identified for both virtual assistants (i.e., agent handing over control) - Supervisor, Information Desk, Interrogator and Converser, and d...
Source: Applied Ergonomics - October 19, 2023 Category: Occupational Health Authors: Jediah R Clark David R Large Emily Shaw Elena Nichele Maria J Galvez Trigo Joel E Fischer Gary Burnett Neville A Stanton Source Type: research
Identifying interaction types and functionality for automated vehicle virtual assistants: An exploratory study using speech acts cluster analysis
This study explores 'interaction types' used for this complex human-machine transaction, by analysing how situation information is conveyed and reciprocated during a transfer of control scenario. Two human drivers alternated control in a bespoke, dual controlled driving simulator with the transfer of control being entirely reliant on verbal communication. Handover dialogues were coded based on speech-act classifications, and a cluster analysis was conducted. Four interaction types were identified for both virtual assistants (i.e., agent handing over control) - Supervisor, Information Desk, Interrogator and Converser, and d...
Source: Applied Ergonomics - October 19, 2023 Category: Occupational Health Authors: Jediah R Clark David R Large Emily Shaw Elena Nichele Maria J Galvez Trigo Joel E Fischer Gary Burnett Neville A Stanton Source Type: research
Improving wayfinding in hospitals for people with diverse needs and abilities: An exploratory approach based on multi-criteria decision making
Appl Ergon. 2023 Oct 15;114:104149. doi: 10.1016/j.apergo.2023.104149. Online ahead of print.ABSTRACTHospital wayfinding systems that are based solely on signage do not provide adequate solutions for wayfinding needs, especially for users with impairments. Moreover, the interaction between user characteristics and the inner space of the building also determines wayfinding efficiency. The aims of this study, therefore, were to identify architectural features that affect spatial orientation and wayfinding behaviors; demonstrate the implementation of a multi-criteria decision-making (MCDM) approach for improving wayfinding in...
Source: Applied Ergonomics - October 17, 2023 Category: Occupational Health Authors: Ido Morag Volkan Sonmez Astrid Van Puyvelde Liliane Pintelon Source Type: research
