Abstract:
OBJECTIVE:The authors investigated the effect of boot weight and sole flexibility on spatiotemporal gait characteristics and physiological responses of firefighters in negotiating obstacles. BACKGROUND:Falls and overexertion are the leading causes of fire ground injuries and fatalities among firefighters. There have been few in-depth studies conducted to evaluate the risk factors of falls and overexertion associated with firefighter boots. METHOD:For the study, 13 female and 14 male firefighters, while wearing full turnout clothing and randomly assigned boots, walked for 5 min while stepping over obstacles. The independent variables included boot weight, sole flexibility, gender, and task duration. Spatiotemporal measures of foot trajectories and toe clearance were determined. Minute ventilation, oxygen consumption, carbon dioxide production, and heart rate were measured. RESULTS:Increased boot weight was found to significantly reduce trailing toe clearance when crossing the 30-cm obstacle. Significant increases in lateral displacement of the foot were found near the end of the 5-min walk compared with the beginning of the task Increased boot weight significantly increased oxygen consumption. There were significant decreases in oxygen consumption for more flexible soles. CONCLUSION:Firefighters were more likely to trip over obstacles when wearing heavier boots and after walking for a period of time. Boot weight affected metabolic variables (5% to 11% increases per 1-kg increase in boot weight), which were mitigated by sole flexibility (5% to 7% decrease for more flexible soles). APPLICATION:This study provides useful information for firefighters and boot manufacturers in boot selection and design for reducing falls and overexertion.
journal_name
Hum Factorsjournal_title
Human factorsauthors
Chiou SS,Turner N,Zwiener J,Weaver DL,Haskell WEdoi
10.1177/0018720811433464subject
Has Abstractpub_date
2012-06-01 00:00:00pages
373-86issue
3eissn
0018-7208issn
1547-8181journal_volume
54pub_type
杂志文章,随机对照试验相关文献
HUMAN FACTORS文献大全abstract:OBJECTIVE:To highlight the working strategies used by expert manual handlers compared with novice manual handlers, based on recordings of shoulder and upper limb kinematics, electromyography (EMG), and estimated muscle forces during a lifting task. BACKGROUND:Novice workers involved in assembly, manual handling, and p...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720820965021
更新日期:2020-11-25 00:00:00
abstract:OBJECTIVE:This study examined the concept of dynamic viewpoint tethering for enhancing performance in 3-D avatar control tasks. BACKGROUND:Dynamic viewpoint tethering refers to a viewpoint animation technique that couples a display viewpoint to a controlled avatar through a virtual tether. A dynamic tether, modeled as...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720809340031
更新日期:2009-06-01 00:00:00
abstract::The present study examined the perceptions of cellular phone users and nonusers on issues relating to vehicle control and driver distraction. Participants were asked if they own a cellular phone; if so, how much they use it; and their beliefs regarding cellular phone use while driving, including actions involving the ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/0018720054679399
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:An enhanced methodology to extract the required coefficient of friction (RCOF) value was used to investigate the effects of the transverse shear component of the ground reaction force (GRF) on the RCOF. BACKGROUND:The RCOF is an important indicator for slip incidents. However,the extraction of the RCOF from ...
journal_title:Human factors
pub_type: 杂志文章,随机对照试验
doi:10.1177/0018720811414885
更新日期:2011-10-01 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:OBJECTIVE:The current study investigated performance on a dual auditory task during a simulated night shift. BACKGROUND:Night shifts and sleep deprivation negatively affect performance on vigilance-based tasks, but less is known about the effects on complex tasks. Because language processing is necessary for successfu...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816654377
更新日期:2016-11-01 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::We report an investigation into the processes involved in a common graph-reading task using two types of Cartesian graph. We describe an experiment and eye movement study, the results of which show that optimal scan paths assumed in the task analysis approximate the detailed sequences of saccades made by individuals. ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/hfes.45.1.28.27225
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVE:The study contributes to human reliability analysis (HRA) by proposing a method that focuses more on human error causality within a sociotechnical system, illustrating its rationality and feasibility by using a case of the Minuteman (MM) III missile accident. BACKGROUND:Due to the complexity and dynamics wit...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720814551555
更新日期:2015-05-01 00:00:00
abstract::Research and operational experience have shown that one of the major problems with pilot-automation interaction is a lack of mode awareness (i.e., the current and future status and behavior of the automation). As a result, pilots sometimes experience so-called automation surprises when the automation takes an unexpect...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872097778667997
更新日期:1997-12-01 00:00:00
abstract:OBJECTIVE:Two experiments were conducted to determine whether detection of the onset of a lead car's deceleration and judgments of its time to contact (TTC) were affected by the presence of vehicles in lanes adjacent to the lead car. BACKGROUND:In a previous study, TTC judgments of an approaching object by a stationar...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816652270
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:We investigated a driver monitoring system (DMS) designed to adaptively back up distracted drivers with automated driving. BACKGROUND:Humans are likely inadequate for supervising today's on-road driving automation. Conversely, backup concepts can use eye-tracker DMS to retain the human as the primary driver ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720819894757
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVE:We studied the utility of occlusion distance as a function of task-relevant event density in realistic traffic scenarios with self-controlled speed. BACKGROUND:The visual occlusion technique is an established method for assessing visual demands of driving. However, occlusion time is not a highly informative ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720815595901
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVE:This study investigated whether a stressful military training program, the 9- to 10-week U.S. Army basic combat training (BCT) course, alters the cognitive performance and mood of healthy young adult females. BACKGROUND:Structured training programs including adolescent boot camps, sports training camps, lear...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720813519472
更新日期:2014-09-01 00:00:00
abstract::Efforts to improve decision making must appeal to some source of warrant - that is, specific criteria or models for guiding and evaluating decision-making performance. We examine and compare the warrants for two approaches to decision aids, decision training, and consulting: analytically based prescription, which obta...
journal_title:Human factors
pub_type: 杂志文章,评审
doi:10.1518/0018720053653811
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVE:The current study investigated driver vigilance in partially automated vehicles to determine whether increased task demands reduce a driver's ability to monitor for automation failures and whether the vigilance decrement associated with hazard detections is due to driver overload. BACKGROUND:Drivers of parti...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720818802095
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:This study examined the way in which the type and preexisting strength of association between an auditory icon and a warning event affects the ease with which the icon/event pairing can be learned and retained. BACKGROUND:To be effective, an auditory warning must be audible, identifiable, interpretable, and ...
journal_title:Human factors
pub_type: 杂志文章,随机对照试验
doi:10.1518/001872006777724426
更新日期:2006-07-01 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:OBJECTIVE:We focused on drivers in close proximity to vehicles with advanced driver assistance systems (ADAS). We examined whether the belief that an approaching vehicle is equipped with automatic emergency braking (AEB) influences behavior of those drivers. BACKGROUND:In addition to benefits of ADAS, previous studies...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720820907755
更新日期:2020-02-26 00:00:00
abstract:OBJECTIVE:We assessed the perceived spaciousness and preference for a destination space in relation to six attributes (size, lighting, window size, texture, wall mural, and amount of furniture) of it and of the space experienced before it. BACKGROUND:Studies have examined effects of these attributes but not for dynami...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720816650068
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:This study analyzes decision making during preoperative surgical planning through two cognitive indicators: conflict and cognitive control. BACKGROUND:Planning is a critical stage in naturalistic decision making, and there is some evidence suggesting that this activity depends on the level of expertise and t...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720809332847
更新日期:2009-02-01 00:00:00
abstract:OBJECTIVE:The goal of this project is to evaluate a new auditory cue, which the authors call spearcons, in comparison to other auditory cues with the aim of improving auditory menu navigation. BACKGROUND:With the shrinking displays of mobile devices and increasing technology use by visually impaired users, it becomes ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/0018720812450587
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:We examined the impact of operational variables on diagnosis and decision-making processes, focusing on information search. BACKGROUND:Arguably, the "best" decision-making processes in high-technology cockpits would be those that are both correspondent (objectively accurate) and coherent (rationally sound). ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872007X312513
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVE:We describe major discoveries and developments in vigilance research. BACKGROUND:Vigilance tasks have typically been viewed as undemanding assignments requiring little mental effort. The vigilance decrement function has also been considered to result from a decline in arousal brought about by understimulatio...
journal_title:Human factors
pub_type: 杂志文章,评审
doi:10.1518/001872008X312152
更新日期:2008-06-01 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::This paper presents a conceptual analysis of dynamic hazard warning systems. The normative aspects of responses to warnings are analyzed, and a distinction is made between two forms of responses to a warning system, referred to as compliance and reliance. Determinants of the responses to warnings are identified, and t...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/hfes.46.2.196.37335
更新日期:2004-07-01 00:00:00
abstract:OBJECTIVE:This article provides a review of areas that present significant challenges in infection prevention and control and describes human factors engineering (HFE) approaches that have been applied successfully to these areas. In addition, implications and recommendations for HFE use in future research are discusse...
journal_title:Human factors
pub_type: 杂志文章,评审
doi:10.1177/0018720819833214
更新日期:2019-08-01 00:00:00
abstract::Two experiments examined the link between vergence effort and subjective reports of visual fatigue following prolonged near work. In Experiment 1, dark vergence and reports of visual fatigue symptoms associated with computer use were measured in 104 persons. Dark vergence was significantly correlated with four of six ...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1177/001872089003200307
更新日期:1990-06-01 00:00:00
abstract::Novice drivers (16-year-olds with < or = 6 months' driving experience) have the highest crash involvement rates per 100 million vehicle miles (161 million vehicle km). In the past, this was attributed to greater risk taking or poorly developed psychomotor skills. More recently, however, their high crash involvement ra...
journal_title:Human factors
pub_type: 杂志文章
doi:10.1518/001872005775570961
更新日期:2005-01-01 00:00:00
abstract::Skilled performers in complex environments rely heavily on heuristic strategies to cope with the time pressure and complexity of dynamic tasks. We suggest that the use of task simplification strategies based largely on perception and pattern recognition is fundamental to the novice-expert shift in dynamic decision mak...
journal_title:Human factors
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1177/001872089606380209
更新日期:1996-06-01 00:00:00