Efficacy of water spray for evaporative cooling in athletes with spinal cord injury

STUDY DESIGN: Interventional crossover study. OBJECTIVE: Spinal cord injury (SCI) disrupts afferent input to the hypothalamus and impairs efferent vaso- and sudomotor output, especially in lesions above the sympathetic chain (T1-L2). In consequence, persons with SCI under heat stress experience impa...

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Autores principales: Trbovich, Michelle, Koek, Wouter, Ortega, Catherine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6786376/
https://www.ncbi.nlm.nih.gov/pubmed/31632709
http://dx.doi.org/10.1038/s41394-019-0194-8
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author Trbovich, Michelle
Koek, Wouter
Ortega, Catherine
author_facet Trbovich, Michelle
Koek, Wouter
Ortega, Catherine
author_sort Trbovich, Michelle
collection PubMed
description STUDY DESIGN: Interventional crossover study. OBJECTIVE: Spinal cord injury (SCI) disrupts afferent input to the hypothalamus and impairs efferent vaso- and sudomotor output, especially in lesions above the sympathetic chain (T1-L2). In consequence, persons with SCI under heat stress experience impairment in the ability to dissipate heat proportional to the lesion level. Thermoregulatory dysfunction places an individual at high risk of hyperthermia, which can be life threatening, especially for athletes with SCI during exercise. Current evidence on therapeutic cooling techniques in athletes with SCI is limited, but basic physiologic and research data suggest water spray (WS) might be efficacious, particularly in athletes with tetraplegia (TP), who are most impaired in thermoregulation. The aim of this study was to evaluate the effect of WS on core temperature (Tc) during exercise in athletes with SCI. SETTING: Texas, USA. METHODS: Eleven individuals with SCI: seven with TP, four with paraplegia (PP); and sixteen able-bodied (AB) controls underwent a wheelchair intermittent sprint exercise for 90 min under two conditions: (1) WS application every 15 min and (2) control (C), without WS. Tc was measured every 15 min and was analyzed for the effect of group (TP, PP, and AB) and time. Change in Tc (ΔTc) was also compared between groups. RESULTS: ΔTc was significantly higher in TP vs. PP (p < 0.0001) and TP vs. AB (p < 0.0001) groups under C treatment. WS significantly attenuated ΔTc in TP (p = 0.001), but did not change ΔTc in PP or AB. CONCLUSION: WS effectively attenuated Tc elevation during exercise in athletes with TP. SPONSORSHIP: Texas chapter of the Paralyzed Veterans of America.
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spelling pubmed-67863762020-05-28 Efficacy of water spray for evaporative cooling in athletes with spinal cord injury Trbovich, Michelle Koek, Wouter Ortega, Catherine Spinal Cord Ser Cases Article STUDY DESIGN: Interventional crossover study. OBJECTIVE: Spinal cord injury (SCI) disrupts afferent input to the hypothalamus and impairs efferent vaso- and sudomotor output, especially in lesions above the sympathetic chain (T1-L2). In consequence, persons with SCI under heat stress experience impairment in the ability to dissipate heat proportional to the lesion level. Thermoregulatory dysfunction places an individual at high risk of hyperthermia, which can be life threatening, especially for athletes with SCI during exercise. Current evidence on therapeutic cooling techniques in athletes with SCI is limited, but basic physiologic and research data suggest water spray (WS) might be efficacious, particularly in athletes with tetraplegia (TP), who are most impaired in thermoregulation. The aim of this study was to evaluate the effect of WS on core temperature (Tc) during exercise in athletes with SCI. SETTING: Texas, USA. METHODS: Eleven individuals with SCI: seven with TP, four with paraplegia (PP); and sixteen able-bodied (AB) controls underwent a wheelchair intermittent sprint exercise for 90 min under two conditions: (1) WS application every 15 min and (2) control (C), without WS. Tc was measured every 15 min and was analyzed for the effect of group (TP, PP, and AB) and time. Change in Tc (ΔTc) was also compared between groups. RESULTS: ΔTc was significantly higher in TP vs. PP (p < 0.0001) and TP vs. AB (p < 0.0001) groups under C treatment. WS significantly attenuated ΔTc in TP (p = 0.001), but did not change ΔTc in PP or AB. CONCLUSION: WS effectively attenuated Tc elevation during exercise in athletes with TP. SPONSORSHIP: Texas chapter of the Paralyzed Veterans of America. Nature Publishing Group UK 2019-05-28 /pmc/articles/PMC6786376/ /pubmed/31632709 http://dx.doi.org/10.1038/s41394-019-0194-8 Text en © International Spinal Cord Society 2019
spellingShingle Article
Trbovich, Michelle
Koek, Wouter
Ortega, Catherine
Efficacy of water spray for evaporative cooling in athletes with spinal cord injury
title Efficacy of water spray for evaporative cooling in athletes with spinal cord injury
title_full Efficacy of water spray for evaporative cooling in athletes with spinal cord injury
title_fullStr Efficacy of water spray for evaporative cooling in athletes with spinal cord injury
title_full_unstemmed Efficacy of water spray for evaporative cooling in athletes with spinal cord injury
title_short Efficacy of water spray for evaporative cooling in athletes with spinal cord injury
title_sort efficacy of water spray for evaporative cooling in athletes with spinal cord injury
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6786376/
https://www.ncbi.nlm.nih.gov/pubmed/31632709
http://dx.doi.org/10.1038/s41394-019-0194-8
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