Authors: C A Leicht K Kouda Y Umemoto M Banno T Kinoshita T Moriki T Nakamura N C Bishop V L GooseyTolfrey F Tajima
Publish Date: 2015/06/24
Volume: 115, Issue: 11, Pages: 2243-2252
Abstract
The dysfunctional sympathetic nervous system in individuals with cervical spinal cord injury CSCI impairs adrenergic responses and may therefore contribute to the blunted postexercise cytokine response The purpose of this study was to investigate an alternative way to exercise to induce an acute cytokine response by passive core temperature elevation in CSCISeven male participants with a motor complete CSCI and 8 male ablebodied controls were immersed for 60 min in water set at a temperature 2 °C above the individuals’ resting oesophageal temperature Blood was collected pre post and every hour up to 4 h postimmersionHot water immersion resulted in an IL6 plasma concentration mean increase of 133 ± 144 in both groups P = 0001 On a group level IL6 plasma concentrations were 68 ± 38 higher in CSCI P = 006 In both groups IL8 increased by 14 ± 11 P = 002 and IL1ra by 18 ± 17 P = 005 Catecholamine plasma concentrations were significantly reduced in CSCI P 005 and did not increase following immersionPassive elevation of core temperature acutely elevates IL6 IL8 and IL1ra in CSCI despite a blunted adrenergic response which is in contrast to earlier exercise interventions in CSCI The present study lays the foundation for future studies to explore water immersion as an alternative to exercise to induce an acute cytokine response in CSCI
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