Análise comparativa de três protocolos de hidratação para árbitros em partidas da Confederação Brasileira de Futebol e da Federação Paulista de Futebol da Série A
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2021-05-28
Tipo
Tese de doutorado
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Introdução: Os árbitros de futebol com frequência sofrem moderada desidratação, que pode interferir no seu desempenho físico e mental. Objetivos: O objetivo deste estudo foi avaliar o efeito de três protocolos de hidratação, no nível de desidratação, na sobrecarga fisiológica e no rendimento físico dos árbitros de futebol durante as partidas dos Campeonatos da Série A. Métodos: Doze árbitros de futebol profissional pertencentes à Confederação Brasileira de Futebol (CBF) e a Federação Paulista de Futebol (FPF), idade média 36,0 ± 3,58 anos, foram submetidos a um ensaio clínico randomizado, no qual 3 protocolos de hidratação diferentes foram aplicados: PA (Grupo Controle – Ad libitum), PB (Isotônico – 500 mL 1 hora antes da partida e 500 mL no intervalo da partida), PC (Isotônico – 500 mL 1 hora antes da partida e até 1 L no intervalo da partida) e a, avaliação do peso corporal, da diurese, da ingestão de líquidos, da frequência cardíaca média (bpm) do 1o e do 2o tempo, da distância total percorrida (DTP), do número de corridas de alta intensidade (acima de 18 km/h) e do estresse térmico (WBGT ºC) foram realizadas. Resultados: A diferença do peso corporal (PC < PB < PA; p < 0,05), da porcentagem de desidratação (PC < PA; p < 0,01) e (PC < PB; p < 0,05), da ingestão total de líquido (PC < PB < PA; p < 0,01), da reposição percentual de líquido (PC > PA; p < 0,01), da frequência cardíaca média do 1o tempo (PC < PA < PB; p < 0,05), e do 2o tempo (PC < PA; p < 0,01), da distância total percorrida (DTP) (PC < PA < PB; p < 0,01), da DTP do 1º tempo e do 2º tempo (PC < PA; p < 0,05), do número de número de corridas de alta intensidade dos 30/45 minutos do 1º tempo (PC < PB; p < 0,01) e do valor médio do estresse térmico (PC > PA > PB; p < 0,01) apresentaram diferença significante entre os protocolos de hidratação. Conclusão: Os resultados evidenciaram que o Protocolo de Hidratação Isotônica acima de um litro reduziu o nível de desidratação e de sobrecarga cardiovascular infligido aos árbitros, até mesmo sob maior estresse térmico ocasional. Não houve diferenças significativas entre o número de corridas de alta intensidade nos períodos das partidas de futebol.
Introduction: Soccer referees often experience moderate dehydration, which can interfere with their physical and mental performance. Objectives: The aim of the present study was to assess the effect of three hydration protocols on the dehydration level, physiological overload and physical performance of football referees during the matches of the Championship’s Main League. Methods: Twelve male professional referees, affiliated to the Brazilian Football Conference (CBF) and to the Paulista Football Federation (FPF), mean (SD) age 36,0 ± 3,58 years, were submitted to a randomized clinical trial, on which three different hydration protocols were used: PA (Control Group – Ad libitum), PB (isotonic drink – 500 ml one hour before the match and 500ml on halftime), PC (isotonic drink – 500ml one hour before the match and one liter until halftime). Moreover, there was the assessment of body weight, diuresis, fluid intake, average heart rate (bpm) on the first and second halves of the match, the amount of high-intensity running (HIR, above 18 km/m) and thermal strain (WBGT ºC ). Results: The differences in body weight (PC < PB and < PA, p < 0,05), in dehydration percentage (PC < PA; p < 0,01) and (PC < PB; p < 0,05), in in total fluid intake (PC < PB < PA; p < 0,01), in fluid replacement percentage (PC > PA, p < 0,01), in average heart rate during first half (PC < PA < PB, p < 0,05) and second half (PC < PA; p < 0,01), in the total distance coverage (TDC) (PC < PA < PB; p < 0,01), in the TDC first and second halves (PC < PA; p < 0,05), in the amount of high-intensity running (HIR) in the 30/45 minutes of the first half (PC < PB; p < 0,01), and the average thermal strain number (PC > PA > PB; p < 0,01) have shown significant alteration between the protocols. Conclusion: These results have demonstrated that the Isotonic Hydration Protocols were able to reduce the dehydration level as well as the cardiovascular overload imposed on the referees. However there was no significant difference observed in the amount of high-intensity running during the football matches.
Introduction: Soccer referees often experience moderate dehydration, which can interfere with their physical and mental performance. Objectives: The aim of the present study was to assess the effect of three hydration protocols on the dehydration level, physiological overload and physical performance of football referees during the matches of the Championship’s Main League. Methods: Twelve male professional referees, affiliated to the Brazilian Football Conference (CBF) and to the Paulista Football Federation (FPF), mean (SD) age 36,0 ± 3,58 years, were submitted to a randomized clinical trial, on which three different hydration protocols were used: PA (Control Group – Ad libitum), PB (isotonic drink – 500 ml one hour before the match and 500ml on halftime), PC (isotonic drink – 500ml one hour before the match and one liter until halftime). Moreover, there was the assessment of body weight, diuresis, fluid intake, average heart rate (bpm) on the first and second halves of the match, the amount of high-intensity running (HIR, above 18 km/m) and thermal strain (WBGT ºC ). Results: The differences in body weight (PC < PB and < PA, p < 0,05), in dehydration percentage (PC < PA; p < 0,01) and (PC < PB; p < 0,05), in in total fluid intake (PC < PB < PA; p < 0,01), in fluid replacement percentage (PC > PA, p < 0,01), in average heart rate during first half (PC < PA < PB, p < 0,05) and second half (PC < PA; p < 0,01), in the total distance coverage (TDC) (PC < PA < PB; p < 0,01), in the TDC first and second halves (PC < PA; p < 0,05), in the amount of high-intensity running (HIR) in the 30/45 minutes of the first half (PC < PB; p < 0,01), and the average thermal strain number (PC > PA > PB; p < 0,01) have shown significant alteration between the protocols. Conclusion: These results have demonstrated that the Isotonic Hydration Protocols were able to reduce the dehydration level as well as the cardiovascular overload imposed on the referees. However there was no significant difference observed in the amount of high-intensity running during the football matches.
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Citação
MONTEIRO, Cristiano Ralo. Análise comparativa de três protocolos de hidratação para árbitros em partidas da Confederação Brasileira de Futebol e da Federação Paulista de Futebol da Série A. 2021. 78 f. Tese (Doutorado em Cardiologia) - Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP). São Paulo, 2021.