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Abstract(s)
Para uma prática regular de desporto, é necessário avaliar o estado hídrico corporal por ser determinante para a performance dos atletas e para prevenir complicações provocadas pelas variações extremas do estado hídrico. Assim, têm sido desenvolvidos vários métodos de análise das variações hídricas. Os mais comuns baseiam-se na osmolalidade sérica, con-centração de sódio, osmolalidade urinária, massa corporal, estado da pele e humidade das mucosas. Para além disso, também é usualmente utilizada a análise da impedância bioelé-trica, que consiste na medição da resistência à passagem de corrente elétrica pelo organismo. Dada as complexidades associadas à regulação do fluido corporal e às variações na morfo-logia, densidade e distribuição dos tecidos de cada indivíduo, não há ainda um procedimento standard para a determinação dos níveis precisos de hidratação durante as atividades físicas diárias. Desta forma, é ainda um desafio determinar o status de hidratação de forma rigorosa e prática, o que impulsiona o desenvolvimento de novos métodos de avaliação. Nesta se-quência, o estado de hidratação corporal de 50 praticantes de ténis foi analisado com base na avaliação da bioimpedância através de um sensor portátil previamente desenvolvido.
For a regular practice of sport, it is necessary to evaluate the body water status because it is determinant for the performance of the athletes and to prevent complications caused by ex-treme variations of the water state. Thus, several methods of water variations analysis have been developed. The most common are based on serum osmolality, sodium concentration, urinary osmolality, body mass, skin condition and mucosal moisture. In addition, bioelectri-cal impedance analysis, which is the measurement of resistance to electrical current passing through the body, is also usually used. Given the complexities associated with body fluid regulation and variations in tissue morphology, density, and distribution of each person, there is no standard procedure for determining precise levels of hydration during daily phys-ical activities. In this way, it is still a challenge to determine the hydration status in a rigorous and practical way, which leads to the development of new evaluation methods. Therefore, the body hydration status of 50 tennis players was analyzed based on the evaluation of bi-oimpedance through a previously developed portable sensor.
For a regular practice of sport, it is necessary to evaluate the body water status because it is determinant for the performance of the athletes and to prevent complications caused by ex-treme variations of the water state. Thus, several methods of water variations analysis have been developed. The most common are based on serum osmolality, sodium concentration, urinary osmolality, body mass, skin condition and mucosal moisture. In addition, bioelectri-cal impedance analysis, which is the measurement of resistance to electrical current passing through the body, is also usually used. Given the complexities associated with body fluid regulation and variations in tissue morphology, density, and distribution of each person, there is no standard procedure for determining precise levels of hydration during daily phys-ical activities. In this way, it is still a challenge to determine the hydration status in a rigorous and practical way, which leads to the development of new evaluation methods. Therefore, the body hydration status of 50 tennis players was analyzed based on the evaluation of bi-oimpedance through a previously developed portable sensor.
Description
Keywords
Atletas Avaliação Bioimpedância Hidratação Sensor Athletes Bioimpedance Hydration Measurement