Abstract:
:In manual material handling tasks, the handle serves as the interface between the human operator and the box (the materials). Handle angle design can affect both wrist posture and lifting ability. This study was designed to evaluate the effect of handle angle on maximal acceptable weight of lifting (MAWL), perceived whole-body exertion, whole-body workload, wrist posture, and perceived wrist exertion. The results indicate that handle angle had a significant effect on wrist posture and wrist rating of perceived exertion (RPE). A box with a 0 degrees handle angle induced the greatest ulnar deviation and the highest wrist RPE. A 75 degrees handle angle induced the greatest radial deviation and a relatively high wrist RPE. A 30 degrees handle angle resulted in the greatest MAWL and the lowest level of wrist RPE. Overall, these findings suggest that 30 degrees and 45 degrees handle angles can provide favorable coupling conditions for the cutout-type handhold container handle. Actual or practical applications include the ergonomic design of container handles for manual material handling tasks industry.
journal_name
Hum Factorsjournal_title
Human factorsauthors
Wang MJ,Chung HC,Chen HCdoi
10.1518/001872000779698079keywords:
subject
Has Abstractpub_date
2000-01-01 00:00:00pages
553-65issue
4eissn
0018-7208issn
1547-8181journal_volume
42pub_type
杂志文章相关文献
HUMAN FACTORS文献大全abstract::We compared 7 methods of measuring visual fatigue--accommodation power, visual acuity, pupil diameter, critical fusion frequency (CFF), eye movement velocity, subjective rating of visual fatigue, and task performance--for their sensitivity to visual load. In the experiment, 10 participants performed a monitoring task ...
journal_title:Human factors
pub_type: 临床试验,杂志文章
doi:10.1518/001872098779649247
更新日期:1998-12-01 00:00:00
abstract:OBJECTIVE:This research examined whether negative and positive arousal emotions modify the relationship between experience level and cue utilization among anesthetists. BACKGROUND:The capacity of a practitioner to form precise associations between clusters of features (e.g., symptoms) and events (e.g., diagnosis) and ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720818765800
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVE:To investigate whether head-worn displays (HWDs) help mobile participants make better alarm management decisions and achieve better situation awareness than alarms alone. BACKGROUND:Patient alarms occur frequently in hospitals but often do not require clinical intervention. Clinicians may become desensitized...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720818814969
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:The objectives were to (a) implement theoretical perspectives regarding human-automation interaction (HAI) into model-based tools to assist designers in developing systems that support effective performance and (b) conduct validations to assess the ability of the models to predict operator performance. BACKG...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816665201
更新日期:2017-03-01 00:00:00
abstract::Thirty-six pilots (31 men, 5 women) were tested in a flight simulator on their ability to intercept a pathway depicted on a highway-in-the-sky (HITS) display. While intercepting and flying the pathway, pilots were required to watch for traffic outside the cockpit. Additionally, pilots were tested on their awareness of...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/0018720024494801
更新日期:2002-04-01 00:00:00
abstract::Using an eye-tracking methodology, we evaluated food nutrition labels' ability to support rapid and accurate visual search for nutrition information. Participants (5 practiced label readers and 5 nonreaders) viewed 180 trials of nutrition labels on a computer, finding answers to questions (e.g., serving size). Label m...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872099779611021
更新日期:1999-09-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to test whether inattentional deafness to critical alarms would be observed in a simulated cockpit. BACKGROUND:The inability of pilots to detect unexpected changes in their auditory environment (e.g., alarms) is a major safety problem in aeronautics. In aviation, the lack of respons...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720813510735
更新日期:2014-06-01 00:00:00
abstract::Task analyses served as the basis for developing the Mixed Arithmetic-Perceptual (MA-P) model, which proposes (1) that people interacting with common graphs to answer common questions apply a set of component processes--searching for indicators, encoding the value of indicators, performing arithmetic operations on the...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089403600303
更新日期:1994-09-01 00:00:00
abstract::The study explored how subjects from childhood (8-14 years old) to elderly adulthood could identify the odors of 17 everyday products. Performance at naming followed an inverted U-shaped course over age, best in young adults and poorest in children and elderly. A discrimination task given to the adults revealed parall...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089403600112
更新日期:1994-03-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to clarify how knowledge elaborated by specific experience may lead to erroneous expectations during interactions between drivers and riders. BACKGROUND:Situation awareness is partly determined by prior knowledge. Unshared knowledge may cause difficulties in managing driving interact...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720811420841
更新日期:2011-12-01 00:00:00
abstract::We examined the influence of backrest inclination and vergence demand on the posture and gaze angle that workers adopt to view visual targets placed in different vertical locations. In the study, 12 participants viewed a small video monitor placed in 7 locations around a 0.65-m radius arc (from 65 degrees below to 30 ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872000779656598
更新日期:2000-04-01 00:00:00
abstract::Factors limiting binocular fusion were studied using 2-dimensional difference of Gaussian (2D-DOG) stimuli. The proportion of fused stimuli and observer's response time were determined for stimuli that varied in spatial frequency composition between 0.22 and 4.8 cycles per degree. At small disparities, mean fusion res...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872097778827098
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVE:We link the problem of complex sociotechnical systems to a new unit-of-analysis and fruitful developing area of applied research, the multiteam system. BACKGROUND:Teams are the dominant entity and theoretical lens being applied to understanding the performance of complex sociotechnical systems. We submit tha...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720810374736
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to design and test alternative computer mouse designs that attempted to reduce extensor muscle loading of the index and middle fingers by altering the orientation of the button switch direction and the force of the switch. BACKGROUND:Computer users of two-button mouse designs ex...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872007X215665
更新日期:2007-08-01 00:00:00
abstract::The self-reliance of the physically impaired can be seriously jeopardized by their inability to operate everyday products, especially if both upper extremities are impaired. To determine the difficulties impaired users encounter in operating consumer product controls, on-site video recordings were made of subjects suf...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089303500207
更新日期:1993-06-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess performance and cognitive states during cognitive work in the presence of physical work and in natural settings. BACKGROUND:Authors of previous studies have examined the interaction between cognitive and physical work, finding performance decrements in working memory. Neur...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816675053
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:This study aimed to organize the literature on cognitive aids to allow comparison of findings across studies and link the applied work of aid development to psychological constructs and theories of cognition. BACKGROUND:Numerous taxonomies have been developed, all of which label cognitive aids via their surf...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720820920099
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVE:A new protocol was evaluated for identification of stiffness, mass, and damping parameters employing a linear model for human hand-arm dynamics relevant to right-angle torque tool use. BACKGROUND:Powered torque tools are widely used to tighten fasteners in manufacturing industries. While these tools increase...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720813485977
更新日期:2013-10-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess the effects of (a) auto-injector form factor on maximum applied force capability and (b) auto-injector design and instructions on force production and orientation. BACKGROUND:Effective delivery of epinephrine through an auto-injector is the result of a multitude of design ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816651536
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the relationship between strategy use and search success on the World Wide Web (i.e., the Web) for experienced Web users. An additional goal was to extend understanding of how the age of the searcher may influence strategy use. BACKGROUND:Current investigations of...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872006778606804
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:We aimed to develop and test a new dynamic measure of transient changes to the useful field of view (UFOV), utilizing a gaze-contingent paradigm for use in realistic simulated environments. BACKGROUND:The UFOV, the area from which an observer can extract visual information during a single fixation, has been ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816642092
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVE:This study aimed at investigating the driver's takeover performance when switching from working on different non-driving related tasks (NDRTs) while driving with a conditionally automated driving function (SAE L3), which was simulated by a Wizard of Oz vehicle, to manual vehicle control under naturalistic dri...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720818824002
更新日期:2019-06-01 00:00:00
abstract::This paper focuses on work practices that may contribute to fatigue-induced performance decrements in the commercial nuclear power industry. Specifically, the amount of overtime worked by operations, technical, and maintenance personnel and the 12-h operator shift schedule are studied. Although overtime for all three ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089403600206
更新日期:1994-06-01 00:00:00
abstract:OBJECTIVE:This study investigated the effects of hospital bed features on the biomechanical stresses experienced by nurses when turning and laterally repositioning patients. Turn Assist, a common feature in ICU beds that helps to rotate patients, and side rail orientation were evaluated. BACKGROUND:Manual patient hand...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720815612625
更新日期:2016-08-01 00:00:00
abstract::In the future auditory directional cues may enhance situational awareness in cockpits with head-coupled displays. This benefit would depend, however, on the pilot's ability to detect the direction of moving sounds at different locations in space. The present investigation examined this ability. Auditory motion acuity ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089203400302
更新日期:1992-06-01 00:00:00
abstract:OBJECTIVE:To study the influence of 10 min of cyclic twisting motion on abdominal and back muscle activities. BACKGROUND:Repetitive (cyclic) occupational activity was identified by many epidemiological reports to be a risk factor for the development of work-related musculoskeletal disorders. Biomechanical and physiolo...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872007X230190
更新日期:2007-10-01 00:00:00
abstract::Reaction time, eye movements, and errors were measured during visual search of Web pages to determine age-related differences in performance as a function of link size, link number, link location, and clutter. Participants (15 young adults, M = 23 years; 14 older adults, M = 57 years) searched Web pages for target lin...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/hfes.46.3.385.50404
更新日期:2004-10-01 00:00:00
abstract:OBJECTIVE:This research aimed to identify the most frequently occurring human factors contributing to maintenance-related failures within a petroleum industry organization. Commonality between failures will assist in understanding reliability in maintenance processes, thereby preventing accidents in high-hazard domains...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720813491424
更新日期:2014-03-01 00:00:00
abstract::The transfer of tactical aviation technology into automobiles is creating information display requirements that are likely to be met by use of the head-up display (HUD). These developments are based largely on conclusions that the HUD-related safety issues raised in the aviation HUD literature can be dismissed and tha...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872097778543840
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVE:Two experiments were conducted to examine the effects of vision and masking friction on contact perception and compliance differentiation thresholds in a simulated tissue-probing task. BACKGROUND:In minimally invasive surgery, the surgeon receives limited haptic feedback because of the current design of the ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872006778606886
更新日期:2006-10-01 00:00:00