Article
Engineering, Biomedical
Milad Gholami, Alireza Choobineh, Mohammad Abdoli-Eramaki, Azizallah Dehghan, Mohammad Taghi Karimi
Summary: This study investigated the effects of keyboard distance on wrist and elbow joint posture. The results showed that increasing the distance between the keyboard and the edge of the desk reduced wrist and elbow flexion and deviation. Therefore, it is important to position the keyboard at a distance that allows the upper extremities to remain in a neutral position to reduce the risk of musculoskeletal disorders.
APPLIED BIONICS AND BIOMECHANICS
(2022)
Article
Engineering, Electrical & Electronic
Severi Friman, Antti Vehkaoja, Jose Maria Perez-Macias
Summary: This study proposes a method to improve the accuracy of optical heart rate estimation in smartwatches by using wrist surface electromyogram (EMG) and accelerometer (ACC) with spectrum subtraction algorithms. The analysis of data from nine subjects shows that wrist EMG has a strong correlation with motion artifacts in the photoplethysmography (PPG) signal and provides additional information compared to ACC data.
IEEE SENSORS JOURNAL
(2022)
Article
Automation & Control Systems
Fady S. Botros, Angkoon Phinyomark, Erik J. Scheme
Summary: This study investigates the feasibility of hand gesture recognition using wrist EMG signals, finding that wrist signals have higher signal quality for gestures involving fine finger movements, while maintaining comparable quality for wrist gestures. The results suggest the potential of using wrist EMG signals in hand gesture recognition and the importance of incorporating knowledge from the prosthetics field into the design of EMG pattern recognition systems.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2022)
Article
Biophysics
Enric Casanova-Batlle, Mark de Zee, Mikkel Thogersen, Yannick Tillier, Lotte N. S. Andreasen Struijk
Summary: This study explores the feasibility of underactuated arm exoskeletons as an alternative solution, and finds that the wrist and elbow joint adapt their kinematics when shoulder abduction is constrained, allowing participants to complete daily activities.
JOURNAL OF BIOMECHANICS
(2022)
Article
Orthopedics
Clare E. Padmore, Andrea H. W. Chan, G. Daniel G. Langohr, James A. Johnson, Nina Suh
Summary: The study shows that forearm orientation affects contact mechanics and end-range carpal kinematics. Future biomechanical studies should report forearm orientation and discuss the implication of the forearm orientation on the experimental results.
JOURNAL OF HAND SURGERY-AMERICAN VOLUME
(2021)
Article
Multidisciplinary Sciences
Ryoya Shiode, Mototaka Kabashima, Yuta Hiasa, Kunihiro Oka, Tsuyoshi Murase, Yoshinobu Sato, Yoshito Otake
Summary: The study developed a deep learning network to estimate and construct highly accurate 3D bone models directly from actual X-ray images. By using digitally reconstructed radiography (DRR) images generated from CT as training data, high-accuracy estimation of a 3D bone model from a small dataset was achieved. The 3D shape of the radius and ulna from actual X-ray images had accuracies of 1.05 +/- 0.36 and 1.45 +/- 0.41 mm, respectively.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Analytical
Howard Chen, Mark C. Schall Jr, Scott M. Martin, Nathan B. Fethke
Summary: Joint angles of the lower extremities were measured using gyroscope and accelerometer measurements without sensor drift, but it is unclear if these methods are applicable to the upper extremity. Additionally, the potential improvement of measurement accuracy using sensor fusion algorithms compared to Kalman filter-based methods remains unknown. This study calculated elbow and wrist joint angles during a material transfer task using IMUs and kinematic constraints, with the best-performing sensor fusion algorithm resulting in low mean square errors.
Article
Neurosciences
Deanna S. Asakawa, Matthew G. Becker, Jennifer M. Asaro, Jennifer L. Hein
Summary: This study compared the joint motions of the shoulder, elbow, and wrist during touchscreen interaction, showing that the joint excursions at these joints are relatively small when performing gestures on a touchscreen.
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2022)
Article
Engineering, Industrial
Sasa Jovanovic, Bostjan Simunic
Summary: The study demonstrated that using a moveable arm support (Armrest (R)) can decrease the time spent in wrist postures outside the threshold values related to CTS, indicating a reduced risk of developing CTS.
INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS
(2021)
Article
Engineering, Biomedical
Ronen Sosnik, Li Zheng
Summary: The study demonstrates the feasibility of predicting actual and imagined 3D trajectories of all arm joints from current sources computed from scalp EEG. Slow cortical potentials in current sources contribute most to trajectory reconstruction, with different current source dipoles contributing differently to each velocity component reconstruction.
JOURNAL OF NEURAL ENGINEERING
(2021)
Review
Radiology, Nuclear Medicine & Medical Imaging
Rola Husain, Arthi Reddy, Etan Dayan, Mingqian Huang, Idoia Corcuera-Solano
Summary: Upper extremity entrapment neuropathies are common and have diverse intrinsic and extrinsic causes, which need to be evaluated comprehensively with clinical and imaging examinations. Clinical and imaging evaluation of upper limb neuropathies is crucial for guiding clinical management.
SEMINARS IN MUSCULOSKELETAL RADIOLOGY
(2021)
Article
Chemistry, Analytical
Mads Jochumsen, Taha Al Muhammadee Janjua, Juan Carlos Arceo, Jimmy Lauber, Emilie Simoneau Buessinger, Rasmus Leck Kaeseler
Summary: The study successfully developed a cheap 3D-printed wrist exoskeleton controlled by an open-source BCI, demonstrating an increase in neural plasticity through training. The BCI system showed good performance, and induced improvements in neural plasticity after training.
Article
Orthopedics
Andrea D. Kassay, Baraa Daher, E. A. Lalone
Summary: The study findings suggest that the Dartfish app is a reliable and valid method for measuring wrist and forearm ROM. Patients can easily record their own ROM measurement videos and track their progress during recovery.
JOURNAL OF HAND THERAPY
(2021)
Article
Engineering, Industrial
Takanori Ito, Yuka Matsumoto, Hayase Funakoshi, Mio Ito, Naohiko Kanemura, Takanori Kokubun
Summary: This study aimed to investigate the relationship between wrist and finger movements and forearm muscle activation in skilled and unskilled typists. Skilled typists exhibited faster wrist and finger movements, as well as higher muscle activation of wrist flexors, while unskilled typists showed higher activation of wrist extensors. These findings suggest that skilled typists optimize muscle usage and reduce mechanical stress on finger muscles and tendons during typing.
INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS
(2023)
Article
Rehabilitation
Gyeong-Tae Gwak, Ui-Jae Hwang, Sung-Hoon Jung, Jun-Hee Kim, Moon-Hwan Kim, Oh-Yun Kwon
Summary: This study compared maximal isometric forearm supination torque in two elbow positions between subjects with and without limited forearm supination range of motion. The results showed a significant difference in MIFST values between groups, specifically with lower values in the LSR group in the extended elbow position. This suggests that elbow position is an important factor to consider when assessing or improving the strength of the supinator muscle, especially in patients with limited forearm supination range of motion.
PHYSIOTHERAPY THEORY AND PRACTICE
(2021)
Article
Engineering, Industrial
Itay Coifman, Rodger Kram, Raziel Riemer
Summary: This study aimed to quantify the metabolic cost of running with additional leg mass. The results showed that for every 1000 g of added mass per leg, gross metabolic power increased by approximately 16% (foot) and 11% (shank) for females, which was slightly greater than the 11% and 8% increases for males, respectively. For thigh loading, metabolic power only increased by 4% per 1000 g in both sexes.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Itay Coifman, Rodger Kram, Raziel Riemer
Summary: The study analyzed the biomechanical response to running with added leg mass, finding that joint moments and powers were dramatically affected, particularly during the swing phase. However, kinematic changes were only moderate. These findings have implications for shoe designs, individuals using added leg mass for running or strength training, and the design of wearable devices.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Wenxiu Yang, Tingshu Chen, Renke He, Richard Goossens, Toon Huysmans
Summary: This study collected autonomic response data (heart rate and skin conductance) from 30 landmarks in the head, neck, and face of 31 participants experiencing pressure discomfort and pain. The results showed that pressure stimulation can change heart rate and skin conductance, with skin conductance being more useful in assessing pressure discomfort and possessing a faster arousal rate. There were gender differences in subjective pressure thresholds and autonomic responses, but no linear correlation between them. This study has significant implications for resolving ergonomic issues associated with head-related products.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Kai Huang, Guozhu Jia, Qun Wang, Yingjie Cai, Zhenyu Zhong, Zeyu Jiao
Summary: In the era of Industry 5.0, human-centered smart manufacturing (HSM) has emphasized the role of humans in collaboration with machines. This study proposes a method that combines deep learning-based 3D pose reconstruction with rapid entire body assessment (REBA) to assess the risk of work-related musculoskeletal disorders (WMSDs) in HSM. The proposed method improves the accuracy of risk assessment by introducing weights between different risk levels, leading to a precision rate of 99.31% in experiments conducted on an automobile production line.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Jan Healey, Sue Hignett, Diane Gyi
Summary: This study explores the delivery of home care in England and examines the barriers that impact worker performance and whether these barriers affect the quality and safety of care. The findings highlight the importance of an Human Factors and Ergonomics (HFE) systems perspective in understanding and improving home care.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Jule Bessler-Etten, Leendert Schaake, Jaap H. Buurke, Gerdienke B. Prange-Lasonder
Summary: This article investigates the development of discomfort caused by repetitive and prolonged forces exerted through a rigid cuff. The study found that repetitive force application triggers discomfort but generally does not result in pain and there are no significant differences between different repetitive loading patterns. The design and use of exoskeletons should consider comfort thresholds specific to prolonged repetitive loading.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
S. Thuillard, L. Audergon, T. Kotalova, A. Sonderegger, J. Sauer
Summary: This study compared the effects of human-induced and machine-induced social stress on task performance and subjective state. The results showed that social stress did not directly affect performance, affect, or self-esteem, but human-induced social stress impaired perceived justice.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Stephen Dooley, Sunwook Kim, Maury A. Nussbaum, Michael L. Madigan
Summary: The purpose of this study was to investigate the effects of arm- and back-support exoskeletons on reactive balance after slip-like and trip-like perturbations on a treadmill. The study found that the exoskeletons did not significantly increase the probability of failed recovery after the perturbations, but did make balance recovery more challenging. Reactive balance differed when wearing different types and activation states of exoskeletons.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Eirini Balta, Andreas Psarrakis, Argiro Vatakis
Summary: Research has shown that mental workload modulates time perception, making timing behavior a reliable index of cognitive demand. This study tested the timing behavior of air traffic controllers in a real aviation environment under different levels of cognitive load. Results showed significant overestimation of time intervals during the high-load landing phase and greater overestimation when landing two helicopters compared to one.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Kremer Lisanne, Gehrmann Jonathan, Rohrig Rainer, Breil Bernhard
Summary: This study aims to investigate whether eye movement measures are suitable for measuring mental workload in healthcare settings. The results indicate significant differences in both objective and subjective workload measures across different task levels. Additionally, there are indications of overload and fatigue in pupil data.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
John Kang, Stephanie C. Payne, Farzan Sasangohar, Ranjana K. Mehta
Summary: This exploratory longitudinal field study aimed to examine the changes in subjective, performance-based, and physiological fatigue measures over time across different shift types in offshore environments. The findings revealed that workers' performances on the psychomotor vigilance test deteriorated over time across all shift types. The study also found correlations between different multimodal fatigue measures.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Hayoung Jung, Wonsup Lee, Sujin Moon, Heecheon You
Summary: This study measured 12 palmar dimensions to analyze the impact of wrist posture on hand size changes during power grip. The findings showed that hand dimensions decreased significantly during grip, with wrist posture and finger position also exerting significant effects on hand size.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Ido Morag, Avi Parush
Summary: This study indicates that there is a relationship between gender and wayfinding performance, and verbal instructions can influence this relationship. Male participants perform better in terms of accuracy and speed in wayfinding, while females rely more on specific routes. Additionally, applying survey knowledge to females may improve their indoor wayfinding ability.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
Junfeng Ma, Yu Wang, Sayali Joshi, Haifeng Wang, Carlton Young, Adam Pervez, Yingge Qu, Shey Washburn
Summary: The U.S. is facing a national nurse shortage, and the application of immersive Virtual Reality technology in nursing education is not fully understood. This study explored the effectiveness and efficacy of immersive Virtual Reality nursing education through a comparative pilot study, and the results showed that the method performed well in terms of effectiveness and efficacy.
APPLIED ERGONOMICS
(2024)
Article
Engineering, Industrial
N. Zhang, M. Fard, J. Xu, J. L. Davy, S. R. Robinson
Summary: Driver drowsiness is a significant factor in serious motor vehicle accidents. This study found that specific frequencies of whole-body vibration can induce driver drowsiness and impair attention and driving performance. These findings provide evidence for establishing transportation safety standards.
APPLIED ERGONOMICS
(2024)
