Physiological responses to spirometer load
Abstract (6 figures) A transient time-dependent increase in tidal volume (TV) and respiratory rate has been observed as a spirometric loading effect in experiments on 22 decerebrate cats. Respiration was recorded via the impedance pneumograph throughout the entire experiment while tidal volume was m...
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| Veröffentlicht in: | Archives internationales de physiologie et de biochimie 1981-01, Vol.89 (5), p.435-444 |
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| container_title | Archives internationales de physiologie et de biochimie |
| container_volume | 89 |
| creator | Schuhmann, R. E. Coles, S. K. Hoff, H. E. |
| description | Abstract
(6 figures)
A transient time-dependent increase in tidal volume (TV) and respiratory rate has been observed as a spirometric loading effect in experiments on 22 decerebrate cats. Respiration was recorded via the impedance pneumograph throughout the entire experiment while tidal volume was measured at intervals of 10-60 min on a spirometer. A total of 233 spirograms was recorded. The mean control tidal volume was 14 ml/kg, followed by an average increase of 30 %, 43 %, 51 %, and 64 % at 30, 60, 90, and 120 sec on the spirometer respectively. Spirometric respiratory rate also increased and as a result instantaneous minute volumes (MV) showed increases up to nearly 400 % of control. Maximal effects occurred within 80 sec reflecting a sequential combination of reflex (via vagal afferents) and chemical (increased CO2) factors reaching a new equilibrium. We also noted a spirometric regularization of previously irregular or periodic (Biot's) breathing. It is apparent that the spirometer introduces small and graded perturbations into respiratory control systems. |
| doi_str_mv | 10.3109/13813458109082640 |
| format | Article |
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(6 figures)
A transient time-dependent increase in tidal volume (TV) and respiratory rate has been observed as a spirometric loading effect in experiments on 22 decerebrate cats. Respiration was recorded via the impedance pneumograph throughout the entire experiment while tidal volume was measured at intervals of 10-60 min on a spirometer. A total of 233 spirograms was recorded. The mean control tidal volume was 14 ml/kg, followed by an average increase of 30 %, 43 %, 51 %, and 64 % at 30, 60, 90, and 120 sec on the spirometer respectively. Spirometric respiratory rate also increased and as a result instantaneous minute volumes (MV) showed increases up to nearly 400 % of control. Maximal effects occurred within 80 sec reflecting a sequential combination of reflex (via vagal afferents) and chemical (increased CO2) factors reaching a new equilibrium. We also noted a spirometric regularization of previously irregular or periodic (Biot's) breathing. It is apparent that the spirometer introduces small and graded perturbations into respiratory control systems.</description><identifier>ISSN: 1381-3455</identifier><identifier>ISSN: 0003-9799</identifier><identifier>EISSN: 1744-4160</identifier><identifier>DOI: 10.3109/13813458109082640</identifier><identifier>PMID: 6176200</identifier><language>eng</language><publisher>Belgium: Informa UK Ltd</publisher><subject>Animals ; Cats ; Decerebrate State - physiopathology ; Respiration ; Spirometry ; Tidal Volume ; Time Factors</subject><ispartof>Archives internationales de physiologie et de biochimie, 1981-01, Vol.89 (5), p.435-444</ispartof><rights>1981 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted 1981</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c353t-fb29151adc79efc78c18e5cce601428822e30daac2652568195decb82f7766fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.tandfonline.com/doi/pdf/10.3109/13813458109082640$$EPDF$$P50$$Ginformahealthcare$$H</linktopdf><linktohtml>$$Uhttps://www.tandfonline.com/doi/full/10.3109/13813458109082640$$EHTML$$P50$$Ginformahealthcare$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,61194,61229,61375,61410</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/6176200$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Schuhmann, R. E.</creatorcontrib><creatorcontrib>Coles, S. K.</creatorcontrib><creatorcontrib>Hoff, H. E.</creatorcontrib><title>Physiological responses to spirometer load</title><title>Archives internationales de physiologie et de biochimie</title><addtitle>Arch Int Physiol Biochim</addtitle><description>Abstract
(6 figures)
A transient time-dependent increase in tidal volume (TV) and respiratory rate has been observed as a spirometric loading effect in experiments on 22 decerebrate cats. Respiration was recorded via the impedance pneumograph throughout the entire experiment while tidal volume was measured at intervals of 10-60 min on a spirometer. A total of 233 spirograms was recorded. The mean control tidal volume was 14 ml/kg, followed by an average increase of 30 %, 43 %, 51 %, and 64 % at 30, 60, 90, and 120 sec on the spirometer respectively. Spirometric respiratory rate also increased and as a result instantaneous minute volumes (MV) showed increases up to nearly 400 % of control. Maximal effects occurred within 80 sec reflecting a sequential combination of reflex (via vagal afferents) and chemical (increased CO2) factors reaching a new equilibrium. We also noted a spirometric regularization of previously irregular or periodic (Biot's) breathing. It is apparent that the spirometer introduces small and graded perturbations into respiratory control systems.</description><subject>Animals</subject><subject>Cats</subject><subject>Decerebrate State - physiopathology</subject><subject>Respiration</subject><subject>Spirometry</subject><subject>Tidal Volume</subject><subject>Time Factors</subject><issn>1381-3455</issn><issn>0003-9799</issn><issn>1744-4160</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1981</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kF1LwzAUhoMoc05_gBfCrrwQqjlpmqbojQy_YKAXeh2y9MR1pE1NWmT_3o4NQUSvzgvvB4eHkFOglynQ4gpSCSnP5KCpZILTPTKGnPOEg6D7gx78ZAhkh-QoxhWlwGQBIzISkAtG6ZhcvCzXsfLOv1dGu2nA2PomYpx2fhrbKvgaOwxT53V5TA6sdhFPdndC3u7vXmePyfz54Wl2O09MmqVdYhesgAx0afICrcmlAYmZMSgocCYlY5jSUmvDRMYyIaHISjQLyWyeC2F1OiHn2902-I8eY6fqKhp0Tjfo-6jytOBAcz4EYRs0wccY0Ko2VLUOawVUbfioX3yGztluvF_UWH43dkAG_2brV431odafPrhSdXrtfLBBN6aKm-m_569_1JeoXbc0OqBa-T40A7d_nvsC_p2EmQ</recordid><startdate>19810101</startdate><enddate>19810101</enddate><creator>Schuhmann, R. E.</creator><creator>Coles, S. K.</creator><creator>Hoff, H. E.</creator><general>Informa UK Ltd</general><general>Taylor & Francis</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19810101</creationdate><title>Physiological responses to spirometer load</title><author>Schuhmann, R. E. ; Coles, S. K. ; Hoff, H. E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-fb29151adc79efc78c18e5cce601428822e30daac2652568195decb82f7766fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1981</creationdate><topic>Animals</topic><topic>Cats</topic><topic>Decerebrate State - physiopathology</topic><topic>Respiration</topic><topic>Spirometry</topic><topic>Tidal Volume</topic><topic>Time Factors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schuhmann, R. E.</creatorcontrib><creatorcontrib>Coles, S. K.</creatorcontrib><creatorcontrib>Hoff, H. E.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Archives internationales de physiologie et de biochimie</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schuhmann, R. E.</au><au>Coles, S. K.</au><au>Hoff, H. E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Physiological responses to spirometer load</atitle><jtitle>Archives internationales de physiologie et de biochimie</jtitle><addtitle>Arch Int Physiol Biochim</addtitle><date>1981-01-01</date><risdate>1981</risdate><volume>89</volume><issue>5</issue><spage>435</spage><epage>444</epage><pages>435-444</pages><issn>1381-3455</issn><issn>0003-9799</issn><eissn>1744-4160</eissn><abstract>Abstract
(6 figures)
A transient time-dependent increase in tidal volume (TV) and respiratory rate has been observed as a spirometric loading effect in experiments on 22 decerebrate cats. Respiration was recorded via the impedance pneumograph throughout the entire experiment while tidal volume was measured at intervals of 10-60 min on a spirometer. A total of 233 spirograms was recorded. The mean control tidal volume was 14 ml/kg, followed by an average increase of 30 %, 43 %, 51 %, and 64 % at 30, 60, 90, and 120 sec on the spirometer respectively. Spirometric respiratory rate also increased and as a result instantaneous minute volumes (MV) showed increases up to nearly 400 % of control. Maximal effects occurred within 80 sec reflecting a sequential combination of reflex (via vagal afferents) and chemical (increased CO2) factors reaching a new equilibrium. We also noted a spirometric regularization of previously irregular or periodic (Biot's) breathing. It is apparent that the spirometer introduces small and graded perturbations into respiratory control systems.</abstract><cop>Belgium</cop><pub>Informa UK Ltd</pub><pmid>6176200</pmid><doi>10.3109/13813458109082640</doi><tpages>10</tpages></addata></record> |
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| ispartof | Archives internationales de physiologie et de biochimie, 1981-01, Vol.89 (5), p.435-444 |
| issn | 1381-3455 0003-9799 1744-4160 |
| language | eng |
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| source | Taylor & Francis:Master (3349 titles); MEDLINE; Taylor & Francis Medical Library - CRKN |
| subjects | Animals Cats Decerebrate State - physiopathology Respiration Spirometry Tidal Volume Time Factors |
| title | Physiological responses to spirometer load |
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