Human Factors

Articles from Vol. 39, No. 1, March

Activation Force and Travel Effects on Overexertion in Repetitive Key Tapping
INTRODUCTION This research is motivated by reports of upper extremity maladies among intensive keyboard users (Bernard, Sauter, Fine, Petersen, & Hales, 1994; McPhee, 1982; NIOSH, 1990; Rose, 1991). Force is one factor often cited as increasing...
An Empirical Examination of Metacognitive Models of Situation Assessment
INTRODUCTION In order to facilitate unambiguous communication throughout this brief report, the terms metacognitive models and situation assessment are defined as follows: The term metacognitive models is used to represent cogitating about interrelationships...
Methodological and Analytical Concerns on the Pilot Selection Research of Park and Lee (1992)
INTRODUCTION Pilot selection has generated a great deal of interest lately because of reductions in the number of experienced pilots available to commercial air carriers, changes in the demographics of pilot candidates, and the need to hire pilots in...
Performance during Positive Pressure Breathing after Rapid Decompression Up to 72,000 Feet
INTRODUCTION Modern aircraft are capable of operating at very high altitudes and are pressurized to prevent hypoxia. Consequently, a sudden loss of cockpit pressure presents a life-threatening situation that requires an immediate response. At altitudes...
Policy Improvements for Prevention of Alcohol Misuse by Airline Pilots
INTRODUCTION Two types of alcohol testing are currently in place for airline pilots: postaccident alcohol testing and preflight random alcohol testing. The primary objective of postaccident alcohol testing is to determine whether alcohol was a contributing...
Practical Operation of a Biaxial Goniometer at the Wrist Joint
INTRODUCTION Awkward wrist postures have been found to be a major contributing Ask factor for occupational cumulative trauma disorders (CTDs) of the hand and wrist, such as tendinitis, tenosynovitis, and carpal tunnel syndrome (Armstrong, 1986). Although...
The Retention of Balance: An Exploratory Study into the Limits of Acceleration the Human Body Can Withstand without Losing Equilibrium
INTRODUCTION Everyone who regularly travels by public transportation has seen someone lose his or her equilibrium because of acceleration of the vehicle. In the Netherlands, passengers have been swung against the door and have fallen out of the bus...
Toward a Quantitative Definition of Manual Lifting Postures
INTRODUCTION Research on manual lifting has typically differentiated among lifting techniques on the basis of the posture adopted to lift a load. For example, Whitney (1958) described two lifting techniques as follows: Derrick action. Throughout the...