2000
DOI: 10.1590/s0100-879x2000000800007
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Abstract: The purpose of this study was to investigate the effect of the level of injury on the serum level of norepinephrine (Nor) and epinephrine (Epi) at rest and after maximal exercise in individuals with paraplegia. Twenty-six male spinal cord-injured subjects with complete paraplegia for at least 9 months were divided into two groups of 13 subjects each according to the level of injury, i.e., T1-T6 and T7-T12. Serum Nor and Epi concentrations were measured by HPLC-ECD, at rest (PRE) and immediately after a maximal… Show more

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Cited by 27 publications
(14 citation statements)
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“…Ainda que os achados de pesquisa possam apresentar evidências discordantes sobre a resposta pressórica ao modelo de exercício físico, autores como Dela et al (29) e Steinberg et al (30) , sugerem que o papel fundamental para o controle cardiovascular é o nível da lesão e as respostas humorais estabelecida por feedback, considerando os menores níveis de epinefrina e norepinefrina em indivíduos paraplégicos.…”
Section: Discussionunclassified
“…Ainda que os achados de pesquisa possam apresentar evidências discordantes sobre a resposta pressórica ao modelo de exercício físico, autores como Dela et al (29) e Steinberg et al (30) , sugerem que o papel fundamental para o controle cardiovascular é o nível da lesão e as respostas humorais estabelecida por feedback, considerando os menores níveis de epinefrina e norepinefrina em indivíduos paraplégicos.…”
Section: Discussionunclassified
“…Finally, some investigators have observed an increased SV and cardiac output (Q ) during exercise with lower body positive pressure. 16,19,21 Whereas many studies have been conducted to evaluate catecholamine responses to exercise 2,4,5,8,9 or HRV at rest in subjects with SCI; 3,10,11,27 few have explored HRV responses to exercise, 28 and we have not found any that evaluated the effects of compression therapy on SNS activity. We speculate that if GCS have an effect on vascular hemodynamic and cardiovascular function (i.e.…”
Section: Introductionmentioning
confidence: 95%
“…1 Furthermore, the measurement of blood norepinephrine (NOR) can be used to estimate the SNS activity. 2 Indeed, the plasma level of free catecholamines, which modulate metabolic and cardiocirculatory reactions as well as adaptation to physical work, constitutes an indicator of sympathoadrenergic activation with exercise. Patients with spinal cord injury (SCI) are known to have autonomic ANS imbalance as a result of their spinal lesion.…”
Section: Introductionmentioning
confidence: 99%
“…Although the experimental evidence suggests autonomic alterations at rest derived from the SCI (18,21,22) , little is known about these possible alterations during exercise. Thus, the information obtained in the literature lets us presume that, individuals with SCI would have lower HRV during the incremental exercise test and, therefore, HRVL occurring in lower workloads, in comparison to a group of non-injured individuals.…”
Section: Introductionmentioning
confidence: 99%