O estudo de biomarcadores salivares e plasmáticos em indivíduos idosos em ciclo ergômetro com cargas crescentes

Abstract

To the ageing process are associated the losses social, cognitive, neuromotors and metabolic, capable of compromising seriously the quality of aged life, leading to the loss of autonomy and physical, psychological and economic dependence, related to the family and society. It is established that the regular practice of physical exercise contributes to healthy ageing, thus showing an increase in expectation of life. Physical exercises regularly practiced inhibit organic changes that are associated to the degenerative process, contribute to the rehabilitation of certain diseases that may increase the rates of morbidity and mortality, acting also on mental and cognitive health. For this reason, has been established strategy with the aim of encouraging the aged to join the regular practice of physical exercise, because their effects are arising from the practice reasonably prolonged and reversible. Thus, in particular, the physical exercises are considered as a typical case of adjustment to stress the stimulus and not as adaptation. The exercise can induce changes in concentration, activity and composition of plasma and salivary several components, such as lactate, immunoglobulin, proteins, nitric oxide, amylase and electrolytes. Saliva is composed primarily of water, and also contain organic and inorganic constituents. The control of the salivary secretion is mediated by a combined share of parasympathetic and sympathetic stimuli, where the adrenergic system operates primarily in the secretion of proteins and cholinergic in regulating the secretion of electrolytes and water. This study examined the effects of acute exercise in the lactate plasmatic and salivary biomarkers (total protein, amylase, nitric oxide and immunoglobulin A) in the active aged and aged athletes.