Biomaterial Database

Loss of performance while wearing a respirator does not increase during a 22.5-hour wearing period. 1988

F J van de Linde

Institute for Perception, Soesterberg, The Netherlands.

To measure loss of performance while wearing a military respirator with and without chemical warfare (CW) clothing for an extended time, a field experiment was carried out with 24 military subjects. With only few short breaks the respirator was worn for 22 h and 30 min, including sleep. Several tests were repeated at different intervals: a 3-km field track run, an obstacle course, and a memory and concentration task. At the field track run the respirator caused 18-20% loss of performance. On the average there was 9% loss of performance at the obstacle course. The memory and concentration task showed 12% loss of performance, however, this only concerned non-mental aspects, such as constriction of visual field. The CW-garment itself led to less loss of performance than the respirator and if both were worn simultaneously, hindrance by the garment was not at all apparent. None of the tests showed an increase in loss of performance with the accumulation of wearing time.

UI	MeSH Term	Description	Entries
D008889	Military Personnel	Persons including soldiers involved with the armed forces.	Air Force Personnel,Armed Forces Personnel,Army Personnel,Coast Guard,Marines,Navy Personnel,Sailors,Soldiers,Submariners,Military,Force Personnel, Air,Personnel, Air Force,Personnel, Armed Forces,Personnel, Army,Personnel, Military,Personnel, Navy,Sailor,Soldier,Submariner
D011482	Protective Devices	Devices designed to provide protection against injury.	Safety Devices,Device, Protective,Device, Safety,Devices, Protective,Devices, Safety,Protective Device,Safety Device
D011597	Psychomotor Performance	The coordination of a sensory or ideational (cognitive) process and a motor activity.	Perceptual Motor Performance,Sensory Motor Performance,Visual Motor Coordination,Coordination, Visual Motor,Coordinations, Visual Motor,Motor Coordination, Visual,Motor Coordinations, Visual,Motor Performance, Perceptual,Motor Performance, Sensory,Motor Performances, Perceptual,Motor Performances, Sensory,Perceptual Motor Performances,Performance, Perceptual Motor,Performance, Psychomotor,Performance, Sensory Motor,Performances, Perceptual Motor,Performances, Psychomotor,Performances, Sensory Motor,Psychomotor Performances,Sensory Motor Performances,Visual Motor Coordinations
D012134	Respiratory Protective Devices	Respirators to protect individuals from breathing air contaminated with harmful dusts, fogs, fumes, mists, gases, smokes, sprays, or vapors.	Gas Masks,Respirators, Air-Purifying,Respirators, Industrial,Industrial Respirators,Air-Purifying Respirator,Air-Purifying Respirators,Device, Respiratory Protective,Devices, Respiratory Protective,Gas Mask,Industrial Respirator,Mask, Gas,Masks, Gas,Protective Device, Respiratory,Protective Devices, Respiratory,Respirator, Air-Purifying,Respirator, Industrial,Respirators, Air Purifying,Respiratory Protective Device
D005082	Physical Exertion	Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.	Physical Effort,Effort, Physical,Efforts, Physical,Exertion, Physical,Exertions, Physical,Physical Efforts,Physical Exertions
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012420	Running	An activity in which the body is propelled by moving the legs rapidly. Running is performed at a moderate to rapid pace and should be differentiated from JOGGING, which is performed at a much slower pace.	Runnings
D013647	Task Performance and Analysis	The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.	Critical Incident Technique,Critical Incident Technic,Task Performance,Task Performance, Analysis,Critical Incident Technics,Critical Incident Techniques,Incident Technic, Critical,Incident Technics, Critical,Incident Technique, Critical,Incident Techniques, Critical,Performance, Analysis Task,Performance, Task,Performances, Analysis Task,Performances, Task,Task Performances,Task Performances, Analysis,Technic, Critical Incident,Technics, Critical Incident,Technique, Critical Incident,Techniques, Critical Incident
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D014857	Warfare	Methods of conducting ARMED CONFLICTS.