A simple water-filled plethysmograph for measurement of limb blood flow in humans
School of Biological and Earth Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom Abstract Fundamental principles underpinning the study of cardiovascular physiology can be emphasized by measuring blood flow. Plethysmography is an appropriate, noninvasive technique to use b...
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| Veröffentlicht in: | Advances in physiology education 2002-06, Vol.26 (2), p.120-128 |
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| container_title | Advances in physiology education |
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| creator | Raine, Neil M Sneddon, Jennifer C |
| description | School of Biological and Earth Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom
Abstract
Fundamental principles underpinning the study of cardiovascular physiology can be emphasized by measuring blood flow. Plethysmography is an appropriate, noninvasive technique to use but may not be available to some institutions. Therefore, for measurement of blood flow in human limbs, we developed a simple water-filled plethysmograph that may be built with minimal technical support. The device is formed from a plastic cylinder and houses a latex sleeve sealed at either end by means of circular flanges and rubber O-ring seals. Limb volume changes are transcribed using an air-filled piston recorder. This instrument proves to be sensitive and accurately determines limb volume changes over time. Utilizing an appropriate venous occlusion protocol, predicted vascular responses to postural challenge and physical exercise may be followed. In response to a questionnaire, a majority of students ( n = 33) agreed that performing blood flow measurements succeeded in relating theory to practice, improved technical and observational skills, and made the learning experience real . This modified plethysmograph proves to be a valuable teaching tool in human physiology classes.
Key words: human physiology; noninvasive; cardiovascular; plethysmography |
| doi_str_mv | 10.1152/advan.00030.2001 |
| format | Article |
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Abstract
Fundamental principles underpinning the study of cardiovascular physiology can be emphasized by measuring blood flow. Plethysmography is an appropriate, noninvasive technique to use but may not be available to some institutions. Therefore, for measurement of blood flow in human limbs, we developed a simple water-filled plethysmograph that may be built with minimal technical support. The device is formed from a plastic cylinder and houses a latex sleeve sealed at either end by means of circular flanges and rubber O-ring seals. Limb volume changes are transcribed using an air-filled piston recorder. This instrument proves to be sensitive and accurately determines limb volume changes over time. Utilizing an appropriate venous occlusion protocol, predicted vascular responses to postural challenge and physical exercise may be followed. In response to a questionnaire, a majority of students ( n = 33) agreed that performing blood flow measurements succeeded in relating theory to practice, improved technical and observational skills, and made the learning experience real . This modified plethysmograph proves to be a valuable teaching tool in human physiology classes.
Key words: human physiology; noninvasive; cardiovascular; plethysmography</description><identifier>ISSN: 1043-4046</identifier><identifier>ISSN: 1522-1229</identifier><identifier>EISSN: 1522-1229</identifier><identifier>DOI: 10.1152/advan.00030.2001</identifier><identifier>PMID: 12031944</identifier><language>eng</language><publisher>United States: American Physiological Society</publisher><subject>Biology ; Blood Volume ; Circulatory system ; Constriction ; Equipment Design ; Exercise ; Forearm - blood supply ; Hand Strength - physiology ; Humans ; Measurement ; Physiology ; Plethysmography - instrumentation ; Plethysmography - methods ; Posture - physiology ; Regional Blood Flow ; Temperature ; Veins ; Water</subject><ispartof>Advances in physiology education, 2002-06, Vol.26 (2), p.120-128</ispartof><rights>Copyright American Physiological Society Mar-Dec 2002</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c436t-2bc6ea850cdcaffbac82d98cb33b05089eb9e6fe87086c884caab4a723e11cf03</citedby><cites>FETCH-LOGICAL-c436t-2bc6ea850cdcaffbac82d98cb33b05089eb9e6fe87086c884caab4a723e11cf03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,3038,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12031944$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Raine, Neil M</creatorcontrib><creatorcontrib>Sneddon, Jennifer C</creatorcontrib><title>A simple water-filled plethysmograph for measurement of limb blood flow in humans</title><title>Advances in physiology education</title><addtitle>Adv Physiol Educ</addtitle><description>School of Biological and Earth Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom
Abstract
Fundamental principles underpinning the study of cardiovascular physiology can be emphasized by measuring blood flow. Plethysmography is an appropriate, noninvasive technique to use but may not be available to some institutions. Therefore, for measurement of blood flow in human limbs, we developed a simple water-filled plethysmograph that may be built with minimal technical support. The device is formed from a plastic cylinder and houses a latex sleeve sealed at either end by means of circular flanges and rubber O-ring seals. Limb volume changes are transcribed using an air-filled piston recorder. This instrument proves to be sensitive and accurately determines limb volume changes over time. Utilizing an appropriate venous occlusion protocol, predicted vascular responses to postural challenge and physical exercise may be followed. In response to a questionnaire, a majority of students ( n = 33) agreed that performing blood flow measurements succeeded in relating theory to practice, improved technical and observational skills, and made the learning experience real . This modified plethysmograph proves to be a valuable teaching tool in human physiology classes.
Key words: human physiology; noninvasive; cardiovascular; plethysmography</description><subject>Biology</subject><subject>Blood Volume</subject><subject>Circulatory system</subject><subject>Constriction</subject><subject>Equipment Design</subject><subject>Exercise</subject><subject>Forearm - blood supply</subject><subject>Hand Strength - physiology</subject><subject>Humans</subject><subject>Measurement</subject><subject>Physiology</subject><subject>Plethysmography - instrumentation</subject><subject>Plethysmography - methods</subject><subject>Posture - physiology</subject><subject>Regional Blood Flow</subject><subject>Temperature</subject><subject>Veins</subject><subject>Water</subject><issn>1043-4046</issn><issn>1522-1229</issn><issn>1522-1229</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc9rFDEYhgex2Fq9e5LgwZOzza-ZSY6lWBUKpVDPIZP5sjNLMhmTma7735vtrAiCeEr4eJ6XfHmL4h3BG0IqeqW7Jz1uMMYMbyjG5EVxkce0JJTKl_mOOSs55vV58TqlXeYaLtir4pxQzIjk_KJ4uEZp8JMDtNczxNIOzkGH8mDuD8mHbdRTj2yIyINOSwQP44yCRW7wLWpdCB2yLuzRMKJ-8XpMb4ozq12Ct6fzsvh--_nx5mt5d__l2831XWk4q-eStqYGLSpsOqOtbbURtJPCtIy1uMJCQiuhtiAaLGojBDdat1w3lAEhxmJ2WXxcc6cYfiyQZuWHZMA5PUJYkmpIQyRp5H9BIjjjUjYZ_PAXuAtLHPMSihJcEcl4lSG8QiaGlCJYNcXB63hQBKtjKeq5FPVcijqWkpX3p9yl9dD9EU4tZKBagX7Y9vshgpry5w_Bhe1B3S7OPcLPec2ltaJHUU2dzd6nf3t6N60v-a2wXyKArLU</recordid><startdate>20020601</startdate><enddate>20020601</enddate><creator>Raine, Neil M</creator><creator>Sneddon, Jennifer C</creator><general>American Physiological Society</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>7TS</scope><scope>7X8</scope></search><sort><creationdate>20020601</creationdate><title>A simple water-filled plethysmograph for measurement of limb blood flow in humans</title><author>Raine, Neil M ; Sneddon, Jennifer C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c436t-2bc6ea850cdcaffbac82d98cb33b05089eb9e6fe87086c884caab4a723e11cf03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Biology</topic><topic>Blood Volume</topic><topic>Circulatory system</topic><topic>Constriction</topic><topic>Equipment Design</topic><topic>Exercise</topic><topic>Forearm - blood supply</topic><topic>Hand Strength - physiology</topic><topic>Humans</topic><topic>Measurement</topic><topic>Physiology</topic><topic>Plethysmography - instrumentation</topic><topic>Plethysmography - methods</topic><topic>Posture - physiology</topic><topic>Regional Blood Flow</topic><topic>Temperature</topic><topic>Veins</topic><topic>Water</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Raine, Neil M</creatorcontrib><creatorcontrib>Sneddon, Jennifer C</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><collection>MEDLINE - Academic</collection><jtitle>Advances in physiology education</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Raine, Neil M</au><au>Sneddon, Jennifer C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A simple water-filled plethysmograph for measurement of limb blood flow in humans</atitle><jtitle>Advances in physiology education</jtitle><addtitle>Adv Physiol Educ</addtitle><date>2002-06-01</date><risdate>2002</risdate><volume>26</volume><issue>2</issue><spage>120</spage><epage>128</epage><pages>120-128</pages><issn>1043-4046</issn><issn>1522-1229</issn><eissn>1522-1229</eissn><abstract>School of Biological and Earth Sciences, Liverpool John Moores University, Liverpool L3 3AF, United Kingdom
Abstract
Fundamental principles underpinning the study of cardiovascular physiology can be emphasized by measuring blood flow. Plethysmography is an appropriate, noninvasive technique to use but may not be available to some institutions. Therefore, for measurement of blood flow in human limbs, we developed a simple water-filled plethysmograph that may be built with minimal technical support. The device is formed from a plastic cylinder and houses a latex sleeve sealed at either end by means of circular flanges and rubber O-ring seals. Limb volume changes are transcribed using an air-filled piston recorder. This instrument proves to be sensitive and accurately determines limb volume changes over time. Utilizing an appropriate venous occlusion protocol, predicted vascular responses to postural challenge and physical exercise may be followed. In response to a questionnaire, a majority of students ( n = 33) agreed that performing blood flow measurements succeeded in relating theory to practice, improved technical and observational skills, and made the learning experience real . This modified plethysmograph proves to be a valuable teaching tool in human physiology classes.
Key words: human physiology; noninvasive; cardiovascular; plethysmography</abstract><cop>United States</cop><pub>American Physiological Society</pub><pmid>12031944</pmid><doi>10.1152/advan.00030.2001</doi><tpages>9</tpages></addata></record> |
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| ispartof | Advances in physiology education, 2002-06, Vol.26 (2), p.120-128 |
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| language | eng |
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| source | MEDLINE; American Physiological Society; EZB-FREE-00999 freely available EZB journals |
| subjects | Biology Blood Volume Circulatory system Constriction Equipment Design Exercise Forearm - blood supply Hand Strength - physiology Humans Measurement Physiology Plethysmography - instrumentation Plethysmography - methods Posture - physiology Regional Blood Flow Temperature Veins Water |
| title | A simple water-filled plethysmograph for measurement of limb blood flow in humans |
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