The effects of a heat acclimation protocol in persons with spinal cord injury
Persons without spinal cord injury (SCI) physiologically acclimate between seven to fourteen consecutive days of exercise in the heat. Decreased resting and exercise core temperature, decreased heart rate, increased plasma volume and increased thermal comfort during exercise are changes consistent w...
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Veröffentlicht in: | Journal of thermal biology 2016-12, Vol.62 (Pt A), p.56-62 |
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description | Persons without spinal cord injury (SCI) physiologically acclimate between seven to fourteen consecutive days of exercise in the heat. Decreased resting and exercise core temperature, decreased heart rate, increased plasma volume and increased thermal comfort during exercise are changes consistent with heat acclimation. Autonomic dysfunction after SCI impairs heat dissipation through sweating and vasodilation. The purpose of this study is to determine if seven consecutive days of exercise in the heat would result in physiologic changes consistent with heat acclimation in persons with SCI. Ten persons with SCI divided into two groups: tetraplegia (n=5) and paraplegia (n=5) exercised in 35°C using an arm ergometer at 50% Wpeak for 30min followed by 15min rest. This protocol was repeated over seven consecutive days. Heart rate (HR), skin temperature, aural temperature (Taur), rate of perceived exertion (RPE), rate of perceived thermal strain (RPTS), and plasma volume (PV) were measured throughout the protocol. There were no significant differences in resting Taur exercise Taur, mean skin temperature, HR, PV, RPE or RPTS over the 7 days for either the tetraplegic or paraplegic group. Participants with SCI did not demonstrate the ability to dissipate heat more efficiently over 7 days of exercise at 35°C. The lack of heat acclimation seen in persons with SCI has implications for the athlete and non-athlete alike. For the SCI athlete, inability to acclimate will impair performance and endurance especially in warm environments, compared to the person without SCI. For the SCI non-athlete, there is a greater risk of heat-related illness in warm environments that can negatively affect participation in outdoor activities and thus quality of life.
•Aural temperature of persons with tetraplegia rises significantly higher than persons paraplegia during heat stress.•Tetraplegic and paraplegic persons have impaired perception of thermal strain during aural temperature elevation.•Resting aural temperature in persons with tetraplegia was significantly lower than persons with paraplegia.•Cooler forehead skin temperature in paraplegic persons may indicate a local adaptation to the heat stress.•Physiologic changes consistent with heat acclimation did not occur in spinal cord injured persons. |
doi_str_mv | 10.1016/j.jtherbio.2016.10.006 |
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•Aural temperature of persons with tetraplegia rises significantly higher than persons paraplegia during heat stress.•Tetraplegic and paraplegic persons have impaired perception of thermal strain during aural temperature elevation.•Resting aural temperature in persons with tetraplegia was significantly lower than persons with paraplegia.•Cooler forehead skin temperature in paraplegic persons may indicate a local adaptation to the heat stress.•Physiologic changes consistent with heat acclimation did not occur in spinal cord injured persons.</description><identifier>ISSN: 0306-4565</identifier><identifier>EISSN: 1879-0992</identifier><identifier>DOI: 10.1016/j.jtherbio.2016.10.006</identifier><identifier>PMID: 27839550</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Acclimatization ; Adult ; Body Temperature ; Body Temperature Regulation ; Exercise ; Exercise Test ; Female ; Heart Rate ; Heat acclimation ; Hot Temperature ; Humans ; Male ; Middle Aged ; Plasma Volume ; Skin Temperature ; Spinal Cord Injuries - physiopathology ; Spinal cord injury ; Thermal strain ; Thermography ; Thermoregulatory dysfunction ; Young Adult</subject><ispartof>Journal of thermal biology, 2016-12, Vol.62 (Pt A), p.56-62</ispartof><rights>2016</rights><rights>Published by Elsevier Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c486t-4f37d7e352f9c1198a36b1ed69c60c616c0888d4936195517bbad354ccfee0d93</citedby><cites>FETCH-LOGICAL-c486t-4f37d7e352f9c1198a36b1ed69c60c616c0888d4936195517bbad354ccfee0d93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jtherbio.2016.10.006$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3552,27931,27932,46002</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27839550$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Trbovich, Michelle B.</creatorcontrib><creatorcontrib>Kiratli, Jenny B.</creatorcontrib><creatorcontrib>Price, Mike J.</creatorcontrib><title>The effects of a heat acclimation protocol in persons with spinal cord injury</title><title>Journal of thermal biology</title><addtitle>J Therm Biol</addtitle><description>Persons without spinal cord injury (SCI) physiologically acclimate between seven to fourteen consecutive days of exercise in the heat. Decreased resting and exercise core temperature, decreased heart rate, increased plasma volume and increased thermal comfort during exercise are changes consistent with heat acclimation. Autonomic dysfunction after SCI impairs heat dissipation through sweating and vasodilation. The purpose of this study is to determine if seven consecutive days of exercise in the heat would result in physiologic changes consistent with heat acclimation in persons with SCI. Ten persons with SCI divided into two groups: tetraplegia (n=5) and paraplegia (n=5) exercised in 35°C using an arm ergometer at 50% Wpeak for 30min followed by 15min rest. This protocol was repeated over seven consecutive days. Heart rate (HR), skin temperature, aural temperature (Taur), rate of perceived exertion (RPE), rate of perceived thermal strain (RPTS), and plasma volume (PV) were measured throughout the protocol. There were no significant differences in resting Taur exercise Taur, mean skin temperature, HR, PV, RPE or RPTS over the 7 days for either the tetraplegic or paraplegic group. Participants with SCI did not demonstrate the ability to dissipate heat more efficiently over 7 days of exercise at 35°C. The lack of heat acclimation seen in persons with SCI has implications for the athlete and non-athlete alike. For the SCI athlete, inability to acclimate will impair performance and endurance especially in warm environments, compared to the person without SCI. For the SCI non-athlete, there is a greater risk of heat-related illness in warm environments that can negatively affect participation in outdoor activities and thus quality of life.
•Aural temperature of persons with tetraplegia rises significantly higher than persons paraplegia during heat stress.•Tetraplegic and paraplegic persons have impaired perception of thermal strain during aural temperature elevation.•Resting aural temperature in persons with tetraplegia was significantly lower than persons with paraplegia.•Cooler forehead skin temperature in paraplegic persons may indicate a local adaptation to the heat stress.•Physiologic changes consistent with heat acclimation did not occur in spinal cord injured persons.</description><subject>Acclimatization</subject><subject>Adult</subject><subject>Body Temperature</subject><subject>Body Temperature Regulation</subject><subject>Exercise</subject><subject>Exercise Test</subject><subject>Female</subject><subject>Heart Rate</subject><subject>Heat acclimation</subject><subject>Hot Temperature</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Plasma Volume</subject><subject>Skin Temperature</subject><subject>Spinal Cord Injuries - physiopathology</subject><subject>Spinal cord injury</subject><subject>Thermal strain</subject><subject>Thermography</subject><subject>Thermoregulatory dysfunction</subject><subject>Young Adult</subject><issn>0306-4565</issn><issn>1879-0992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtOwzAQRS0EoqXwC5WXbBLsOHHiHajiJRWxKWvLsSeqozQudgLi73HUli0rj2fuPO5BaElJSgnld23aDlvwtXVpFv8xmRLCz9CcVqVIiBDZOZoTRniSF7yYoasQWkJowQpyiWZZWTFRFGSO3jZbwNA0oIeAXYMV3oIasNK6szs1WNfjvXeD067DNsbgg-sD_rbDFoe97VWHtfMm1trR_1yji0Z1AW6O7wJ9PD1uVi_J-v35dfWwTnRe8SHJG1aaEliRNUJTKirFeE3BcKE50ZxyTaqqMrlgnMYzaVnXyrAi17oBIEawBbo9zI23fY4QBrmzQUPXqR7cGCSN9iglOZuk_CDV3oXgoZF7H535H0mJnFDKVp5QygnllI8oY-PyuGOsd2D-2k7souD-IIDo9MuCl0Fb6DUY6yNOaZz9b8cvyy2IbQ</recordid><startdate>201612</startdate><enddate>201612</enddate><creator>Trbovich, Michelle B.</creator><creator>Kiratli, Jenny B.</creator><creator>Price, Mike J.</creator><general>Elsevier Ltd</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>201612</creationdate><title>The effects of a heat acclimation protocol in persons with spinal cord injury</title><author>Trbovich, Michelle B. ; Kiratli, Jenny B. ; Price, Mike J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c486t-4f37d7e352f9c1198a36b1ed69c60c616c0888d4936195517bbad354ccfee0d93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Acclimatization</topic><topic>Adult</topic><topic>Body Temperature</topic><topic>Body Temperature Regulation</topic><topic>Exercise</topic><topic>Exercise Test</topic><topic>Female</topic><topic>Heart Rate</topic><topic>Heat acclimation</topic><topic>Hot Temperature</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Plasma Volume</topic><topic>Skin Temperature</topic><topic>Spinal Cord Injuries - physiopathology</topic><topic>Spinal cord injury</topic><topic>Thermal strain</topic><topic>Thermography</topic><topic>Thermoregulatory dysfunction</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Trbovich, Michelle B.</creatorcontrib><creatorcontrib>Kiratli, Jenny B.</creatorcontrib><creatorcontrib>Price, Mike J.</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>Journal of thermal biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Trbovich, Michelle B.</au><au>Kiratli, Jenny B.</au><au>Price, Mike J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effects of a heat acclimation protocol in persons with spinal cord injury</atitle><jtitle>Journal of thermal biology</jtitle><addtitle>J Therm Biol</addtitle><date>2016-12</date><risdate>2016</risdate><volume>62</volume><issue>Pt A</issue><spage>56</spage><epage>62</epage><pages>56-62</pages><issn>0306-4565</issn><eissn>1879-0992</eissn><abstract>Persons without spinal cord injury (SCI) physiologically acclimate between seven to fourteen consecutive days of exercise in the heat. Decreased resting and exercise core temperature, decreased heart rate, increased plasma volume and increased thermal comfort during exercise are changes consistent with heat acclimation. Autonomic dysfunction after SCI impairs heat dissipation through sweating and vasodilation. The purpose of this study is to determine if seven consecutive days of exercise in the heat would result in physiologic changes consistent with heat acclimation in persons with SCI. Ten persons with SCI divided into two groups: tetraplegia (n=5) and paraplegia (n=5) exercised in 35°C using an arm ergometer at 50% Wpeak for 30min followed by 15min rest. This protocol was repeated over seven consecutive days. Heart rate (HR), skin temperature, aural temperature (Taur), rate of perceived exertion (RPE), rate of perceived thermal strain (RPTS), and plasma volume (PV) were measured throughout the protocol. There were no significant differences in resting Taur exercise Taur, mean skin temperature, HR, PV, RPE or RPTS over the 7 days for either the tetraplegic or paraplegic group. Participants with SCI did not demonstrate the ability to dissipate heat more efficiently over 7 days of exercise at 35°C. The lack of heat acclimation seen in persons with SCI has implications for the athlete and non-athlete alike. For the SCI athlete, inability to acclimate will impair performance and endurance especially in warm environments, compared to the person without SCI. For the SCI non-athlete, there is a greater risk of heat-related illness in warm environments that can negatively affect participation in outdoor activities and thus quality of life.
•Aural temperature of persons with tetraplegia rises significantly higher than persons paraplegia during heat stress.•Tetraplegic and paraplegic persons have impaired perception of thermal strain during aural temperature elevation.•Resting aural temperature in persons with tetraplegia was significantly lower than persons with paraplegia.•Cooler forehead skin temperature in paraplegic persons may indicate a local adaptation to the heat stress.•Physiologic changes consistent with heat acclimation did not occur in spinal cord injured persons.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>27839550</pmid><doi>10.1016/j.jtherbio.2016.10.006</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Acclimatization Adult Body Temperature Body Temperature Regulation Exercise Exercise Test Female Heart Rate Heat acclimation Hot Temperature Humans Male Middle Aged Plasma Volume Skin Temperature Spinal Cord Injuries - physiopathology Spinal cord injury Thermal strain Thermography Thermoregulatory dysfunction Young Adult |
title | The effects of a heat acclimation protocol in persons with spinal cord injury |
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