Effects of the M40 Respirator on Pulmonary Function Measurements

Soldiers wearing protective respirators must contend with the burden the equipment places on their respiratory systems. Breathing resistance is imposed by the purifying canister, the inhalation and exhalation valves, and the internal flow path. Static pulmonary function tests performed on 23 militar...

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Hauptverfasser:	Strickler, Linda C, Kulle, Thomas J, Solivan, Jose, Froehlich, Harry L
Format:	Report
Sprache:	eng
Schlagworte:	ARMY PERSONNEL BREATHING RESISTANCE CANISTERS EXHALATION FLOW FLOW FIELDS INHALATION INTERNAL Life Support Systems M40 RESPIRATORS MEASUREMENT Protective Equipment PULMONARY FUNCTION PURIFICATION RESISTANCE RESPIRATION RESPIRATORS RESPIRATORY SYSTEM STATIC TESTS Stress Physiology VALVES VENTILATION VOLUME
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creator	Strickler, Linda C Kulle, Thomas J Solivan, Jose Froehlich, Harry L
description	Soldiers wearing protective respirators must contend with the burden the equipment places on their respiratory systems. Breathing resistance is imposed by the purifying canister, the inhalation and exhalation valves, and the internal flow path. Static pulmonary function tests performed on 23 military volunteers, 21 - 32 years old, wearing the M40 respirator without canister showed only two of seven specific pulmonary function measurements (PIF and PEF) to be statistically, significantly decreased (79% and 83% of Control, respectively). Attaching the canister resulted in these flow measurements further decreasing to 76% and 79% of Control. Maximum Voluntary Ventilation significantly decreased only for the M40 with canister (71% of Control), while it was 92% of Control for the M40 with canister. The remaining flow and volume measurements were not significantly changed.
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Breathing resistance is imposed by the purifying canister, the inhalation and exhalation valves, and the internal flow path. Static pulmonary function tests performed on 23 military volunteers, 21 - 32 years old, wearing the M40 respirator without canister showed only two of seven specific pulmonary function measurements (PIF and PEF) to be statistically, significantly decreased (79% and 83% of Control, respectively). Attaching the canister resulted in these flow measurements further decreasing to 76% and 79% of Control. Maximum Voluntary Ventilation significantly decreased only for the M40 with canister (71% of Control), while it was 92% of Control for the M40 with canister. The remaining flow and volume measurements were not significantly changed.</description><language>eng</language><subject>ARMY PERSONNEL ; BREATHING RESISTANCE ; CANISTERS ; EXHALATION ; FLOW ; FLOW FIELDS ; INHALATION ; INTERNAL ; Life Support Systems ; M40 RESPIRATORS ; MEASUREMENT ; Protective Equipment ; PULMONARY FUNCTION ; PURIFICATION ; RESISTANCE ; RESPIRATION ; RESPIRATORS ; RESPIRATORY SYSTEM ; STATIC TESTS ; Stress Physiology ; VALVES ; VENTILATION ; VOLUME</subject><creationdate>1990</creationdate><rights>Approved for public release; distribution is unlimited.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,776,881,27546,27547</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/ADA223375$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Strickler, Linda C</creatorcontrib><creatorcontrib>Kulle, Thomas J</creatorcontrib><creatorcontrib>Solivan, Jose</creatorcontrib><creatorcontrib>Froehlich, Harry L</creatorcontrib><creatorcontrib>CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD</creatorcontrib><title>Effects of the M40 Respirator on Pulmonary Function Measurements</title><description>Soldiers wearing protective respirators must contend with the burden the equipment places on their respiratory systems. Breathing resistance is imposed by the purifying canister, the inhalation and exhalation valves, and the internal flow path. Static pulmonary function tests performed on 23 military volunteers, 21 - 32 years old, wearing the M40 respirator without canister showed only two of seven specific pulmonary function measurements (PIF and PEF) to be statistically, significantly decreased (79% and 83% of Control, respectively). Attaching the canister resulted in these flow measurements further decreasing to 76% and 79% of Control. Maximum Voluntary Ventilation significantly decreased only for the M40 with canister (71% of Control), while it was 92% of Control for the M40 with canister. The remaining flow and volume measurements were not significantly changed.</description><subject>ARMY PERSONNEL</subject><subject>BREATHING RESISTANCE</subject><subject>CANISTERS</subject><subject>EXHALATION</subject><subject>FLOW</subject><subject>FLOW FIELDS</subject><subject>INHALATION</subject><subject>INTERNAL</subject><subject>Life Support Systems</subject><subject>M40 RESPIRATORS</subject><subject>MEASUREMENT</subject><subject>Protective Equipment</subject><subject>PULMONARY FUNCTION</subject><subject>PURIFICATION</subject><subject>RESISTANCE</subject><subject>RESPIRATION</subject><subject>RESPIRATORS</subject><subject>RESPIRATORY SYSTEM</subject><subject>STATIC TESTS</subject><subject>Stress Physiology</subject><subject>VALVES</subject><subject>VENTILATION</subject><subject>VOLUME</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1990</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNrjZHBwTUtLTS4pVshPUyjJSFXwNTFQCEotLsgsSizJL1LIz1MIKM3Jzc9LLKpUcCvNSy7JBAr5piYWlxal5qbmlRTzMLCmJeYUp_JCaW4GGTfXEGcP3ZSSzOT44pLMvNSSeEcXRyMjY2NzU2MC0gCKKi3k</recordid><startdate>199005</startdate><enddate>199005</enddate><creator>Strickler, Linda C</creator><creator>Kulle, Thomas J</creator><creator>Solivan, Jose</creator><creator>Froehlich, Harry L</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>199005</creationdate><title>Effects of the M40 Respirator on Pulmonary Function Measurements</title><author>Strickler, Linda C ; Kulle, Thomas J ; Solivan, Jose ; Froehlich, Harry L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA2233753</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1990</creationdate><topic>ARMY PERSONNEL</topic><topic>BREATHING RESISTANCE</topic><topic>CANISTERS</topic><topic>EXHALATION</topic><topic>FLOW</topic><topic>FLOW FIELDS</topic><topic>INHALATION</topic><topic>INTERNAL</topic><topic>Life Support Systems</topic><topic>M40 RESPIRATORS</topic><topic>MEASUREMENT</topic><topic>Protective Equipment</topic><topic>PULMONARY FUNCTION</topic><topic>PURIFICATION</topic><topic>RESISTANCE</topic><topic>RESPIRATION</topic><topic>RESPIRATORS</topic><topic>RESPIRATORY SYSTEM</topic><topic>STATIC TESTS</topic><topic>Stress Physiology</topic><topic>VALVES</topic><topic>VENTILATION</topic><topic>VOLUME</topic><toplevel>online_resources</toplevel><creatorcontrib>Strickler, Linda C</creatorcontrib><creatorcontrib>Kulle, Thomas J</creatorcontrib><creatorcontrib>Solivan, Jose</creatorcontrib><creatorcontrib>Froehlich, Harry L</creatorcontrib><creatorcontrib>CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Strickler, Linda C</au><au>Kulle, Thomas J</au><au>Solivan, Jose</au><au>Froehlich, Harry L</au><aucorp>CHEMICAL RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUND MD</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Effects of the M40 Respirator on Pulmonary Function Measurements</btitle><date>1990-05</date><risdate>1990</risdate><abstract>Soldiers wearing protective respirators must contend with the burden the equipment places on their respiratory systems. Breathing resistance is imposed by the purifying canister, the inhalation and exhalation valves, and the internal flow path. Static pulmonary function tests performed on 23 military volunteers, 21 - 32 years old, wearing the M40 respirator without canister showed only two of seven specific pulmonary function measurements (PIF and PEF) to be statistically, significantly decreased (79% and 83% of Control, respectively). Attaching the canister resulted in these flow measurements further decreasing to 76% and 79% of Control. Maximum Voluntary Ventilation significantly decreased only for the M40 with canister (71% of Control), while it was 92% of Control for the M40 with canister. The remaining flow and volume measurements were not significantly changed.</abstract><oa>free_for_read</oa></addata></record>
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source	DTIC Technical Reports
subjects	ARMY PERSONNEL BREATHING RESISTANCE CANISTERS EXHALATION FLOW FLOW FIELDS INHALATION INTERNAL Life Support Systems M40 RESPIRATORS MEASUREMENT Protective Equipment PULMONARY FUNCTION PURIFICATION RESISTANCE RESPIRATION RESPIRATORS RESPIRATORY SYSTEM STATIC TESTS Stress Physiology VALVES VENTILATION VOLUME
title	Effects of the M40 Respirator on Pulmonary Function Measurements
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