Concentrações Séricas De Sódio, Potássio E Cálcio Em Equinos Da Raça Mangalarga Marchador Após Exercício Físico

Abstract

RESUMO:O presente estudo teve por objetivo avaliar a influência do exercício físico de intensidade submáxima (marcha) sobre as concentrações séricas de sódio, potássio e cálcio em equinos criados no estado do Espírito Santo. Foram obtidas amostras de sangue de 15 equinos, da raça Mangalarga Marchador, em quatro momentos: antes (T0), com 5 minutos (T1), 30 minutos (T2) e 2 horas (T3) após o termino da atividade física (40 minutos de marcha). Os valores médios para o sódio foram de 148,118,2mEq/L, 151,112,7mEq/L, 144,117,4mEq/L e 152,323,1mEq/L; para o potássio foram de 4,20,8mEq/L, 4,70,7mEq/L, 3,40,5mEq/L e 3,90,8mEq/L; e para o cálcio foram de 11,11,8mg/dL, 10,61,6mg/dL, 11,52,6mg/dL e 11,01,5mg/dL, respectivamente, nos tempos T0, T1, T2 e T3. Os resultados demonstraram que a marcha não influenciou de forma significativa os valores séricos de sódio e de cálcio. Houve diferença significativa com redução nos valores médios de potássio em T2 (p<0,0001). Os resultados também sugerem que os equinos estavam bem condicionados ao tipo de exercício físico imposto. Palavras-chave: eletrólitos; equinos; marcha SERUM CONCENTRATION OF SODIUM, POTASSIUM AND CALCIUM IN MANGALARGA MARCHADOR HORSES AFTER PHYSICAL EXERCISEABSTRACT: The aim of this study was to evaluate the effects of submaximal intensity exercise (marcha gait) on serum concentrations of sodium, potassium and calcium in horses raised in Espírito Santo. Blood samples were collected from 15 Mangalarga Marchador horses at four different moments: before (T0) and with five minutes (T1), 30 minutes (T2) and 2 hours (T3) after physical exercise (40 minutes of marcha). The mean values for serum sodium were 148.118.2mEq/L, 151.112.7mEq/L, 144.117.4mEq/L and 152.323.1mEq/L; for serum potassium were 4.20.8mEq/L, 4.70.7mEq/L, 3.40.5mEq/L and 3.90.8mEq/L; and for serum calcium were 11.11.8mg/dL, 10.61.6mg/dL, 11.52.6mg/dL and 11.01.5mg/dL, respectively on moments T0, T1, T2 and T3. Analysis of the results showed that the marcha gait didn't alter serum sodium and calcium. The evaluation of serum potassium revealed a significant difference (p<0.0001) with decrease of serum values in T2. Results also suggest that equines were well conditioned to the type of exercise imposed.

Correlation Between the Use of Mineral Salt and Electrolyte Impacts in the Equine Diet

“…Furthermore, it is essential to highlight that in addition to the mineral maintenance requirement, future electrolyte losses, due to intense sweating, for example, also have great relevance to this demand. 7 .…”

Serum mineral reference values in athlete Brazilian four-beat gaited horses

“…Studies published to date providing pre-exercise or basal levels for minerals in four-beat gaited horses were not sufficient to serve as reference value guidelines, as no more than four minerals were evaluated (Folador et al, 2014;Martins et al, 2017). Therefore, the basal mineral reference values of fourbeat gaited horses warrant investigation.…”

Changes in surface temperature of upper fore and hindlimbs of horses submitted to four beat gait exercise determined by thermography

“…The results are shown in Table 1. The increase of the heart and respiratory rates, together with speed and exercise duration suggest that horses performed prolonged exercise at a low speed, producing mostly aerobic energy that is related to submaximal exercise (Prates et al, 2009;Folador et al, 2014;Trindade et al, 2019).…”