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Concentração de lactato, eletrólitos e hemogasometria em eqüinos não treinados e treinados durantes testes de esforço progressivo

Authors: Silva, Marco Augusto Giannoccaro da;

Concentração de lactato, eletrólitos e hemogasometria em eqüinos não treinados e treinados durantes testes de esforço progressivo

Abstract

This work was earried out with the objeetive to evaluate the training released with base in the laetate threshold and the response hemogasometrie and eleetrolytie in venous and arterial blood samples of Thoroughbred Arabian horses. There were utilized nine equines, males or females, young adults fully detrained. The animais previously had been adapted to the work in treadmill and, afie r that, submitted the exereise test eharaeterized by stages of inereasing speeds until the maximum effort was reaehed. Sefore, during and to the end of the exereise, as well as afie r and 30 minutes after the aetivities were finished, samples of both venous and arterial blood were colleeted in order to measure some variables like Na+, K+, Cai, cr, Lae, Osm, pH, P02, PC02, Sat02, HC03-, Het, Hb, ES e o AG. The training protoeol was established on the basis of the laetate threshold (LL) determined individually, being this, eonsidered as being the first point in whieh had inerease of the superior laetate eoneentration 1,0 mmol/L. The animais were submitted to training of resistanee during six weeks, with sessions of 45 minutes, three times a week. Afier this period, the animais were submitted, again, to same type of exereise. The values of Lae had diminished whereas pH, V4 and Vmáx inereased afie r the training, refleeting the improvement in the conditioning of the animais. The eoneentràtions of Na+, K+, Hb as well as the values of hematoerit deereased afier the training in reply to the hypervolemy. Afier-training had increase of ionized ealeium. The P02 arterial remained eonstant, before and afier the training, during the exereise, and hypoxemy wasn't observed. A deereased in PaC02 parallel to the inerease of the intensity of the exereise was assoeiated to the hyperventilation. The instituted training on the basis of the laetate threshold promoted improvement of the physieal eondition and eonsequently, in the bioehemists and hemogasometries variables.

Objetivou-se avaliar o treinamento realizado com base no limiar de lactato e a resposta hemogasométrica.e eletrolítica arterial e venosa de eqüinos da raça Puro Sangue Árabe submetidos a exercícios testes progressivos. Foram utilizados nove eqüinos, machos ou fêmeas, adultos jovens destreinados. Os animais foram previamente adaptados ao trabalho em esteira rolante e, em seguida, submetidos a exercício teste caracterizado por etapas de velocidades crescentes até que o esforço máximo fosse atingido. Antes, durante e ao final do exercício, bem como após e 30 minutos após o desaquecimento foram colhidas amostras de sangue venoso e arterial para a mensuração de algumas variáveis como Na+, K+, Cai, cr, Lac, Osm, pH, POz, PC02, SatOz, HC03-, Hct, Hb, EB e o AG. O protocolo de treinamento foi estabelecido com base no limiar de lactato (LL) determinado individualmente, sendo este, considerado como sendo o primeiro ponto no qual houve aumento da concentração de lactato superior a 1,0 mmol/L. Os animais foram submetidos a treinamento de resistência por seis semanas, sendo que as sessões tinham duração de 45 mino e eram realizadas três vezes por semana. Após este período, os animais eram sub.metidos, novamente, ao mesmo exercício teste. Os valores de Lac diminuíram enquanto que o pH, a V4 e a Vmáx aumentaram após o treinamento, refletindo a melhora no condicionamento dos animais. As concentrações de Na+, K+, Hb assim como os valores de hematócrito diminuíram após o treinamento em resposta à hipervolemia. Houve aumento do cálcio ionizado pós-treinamento. A POz arterial manteve-se constante, antes e após o treinamento, durante o exercício, não sendo observado hipoxemia. Houve diminuição da PaCOZ paralelamente ao aumento da intensidade do exercício estando associada à hiperventilação...

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Medicina Veterinária - FCAV

Country
Brazil
Keywords

Treadmill, Esteira rolante, Exercício máximo, Treinamento aeróbio, Equines, Maximum exercise, Equino, Aerobic training

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green