The Influence of Organized Camp Experience on Stress Responses in Elementary Children : The importance of cognitive appraisal

The objective of this study was to analyze the effect of body immersion in cold water on creatine kinase and myoglobin levels in soccer athletes. For this, 10 soccer players aged between 16 and 18 years old, submitted to 5 blood samples, were analyzed: fasting, post-match, after 24, 48 and 72 hours. At the end of the match they were randomized into intervention group (GI) and control (CG). GI immersion in cold water, water plate at the level of the iliac crests, 10 ° C, for 10 minutes and the GC immersed in water at room temperature at the same height and for the same period of time. The levels of creatine kinase did not change in the analyzed groups and moments. Myoglobin levels increased significantly after the match and returned to baseline after 24 and 72 hours, with a peak in 48 hours. There was no difference between the intervention groups at all the evaluated moments. It was concluded that immersion in cold water did not alter the creatine kinase and myoglobin levels in relation to the control group in soccer athletes, indicating that for this population immersion in cold water was not able to reduce muscle damage after exercise. Keywords: Athletic Injuries. Myalgia. Fatigue. Cryotherapy. Resumo O objetivo deste estudo foi analisar o efeito da imersao corporal em agua fria nos niveis de creatinoquinase e mioglobina em atletas de futebol. Para isto, foram analisados 10 atletas de futebol com idade entre 16 e 18 anos, submetidos a 5 coletas sanguineas: em jejum, apos jogo, apos 24, 48 e 72 horas. Ao termino do jogo foram aleatorizados em grupo intervencao (GI) e controle (GC). O GI realizou imersao em agua fria, lâmina da agua a altura das cristas iliacas, 10oC, por 10 minutos e o GC realizou imersao em agua a temperatura ambiente a mesma altura e durante o mesmo periodo de tempo. Os niveis de creatinoquinase nao apresentaram alteracao nos grupos e momentos analisados. Ja os niveis de mioglobina aumentaram significativamente apos o jogo e retornaram aos valores basais apos 24 e 72 horas, com pico em 48 horas. Nao houve diferenca entre os grupos de intervencao em todos os momentos avaliados. Conclui-se entao que a imersao em agua fria nao alterou os niveis de creatinoquinase e mioglobina em relacao ao grupo controle em atletas de futebol, indicando que para esta populacao a imersao em agua fria nao foi capaz de reduzir o dano muscular apos exercicio. Palavras-chave: Traumatismos em Atletas. Mialgia. Fadiga. Crioterapia.