Compoziţia şi caracteristicile sale organoleptice recomandă berea ca pe o băutură adecvată pentru a reface pierderile hidrominerale care se produc prin transpiraţie facilitând recuperarea după exerciţiul fizic, mai ales când se realizează într-un mediu călduros.
Aceasta este concluzia unui studiu realizat în comun de cercetătorii spanioli de la Facultatea de Medicină a Universităţii din Granada şi a celor din cadrul Consiliului Superior de Cercetări Ştiinţifice din Madrid, pe un grup de tineri sănătoşi, cu vârsta cuprinsă între 20 şi 30 de ani.
”Berea aduce substraturi metabolice care înlocuiesc pierderile ocazionate de exerciţiile fizice cum sunt amidonul, diverse minerale, vitaminele din grupa B şi antioxidanţi. Printre alte proprietăţi, berea se caracterizează prin efectul marcat răcoritor şi puterea de reducere a senzaţiei de sete şi este, consumată moderat, o băutră rehidratantă ideală”, consideră dr. Alin Popescu, medic specialist în medicină sportivă.
Obiectul acestei cercetării era acela de a studia berea ca o băutură rehidratantă după un exerciţiu fizic obişnuit, în viaţa de zi cu zi. Subiecţii a fost supuşi unui protocol de exerciţii (60 minute de alergat) şi în condiţii de temperaturi ridicate (35°C şi 60% umiditate relativă. Exerciţiul a stabilit unele pierderi hidrice de 1,5 – 2 l, ceea ce corespundea unei pierderi a greutăţii corporale de 2 – 2,5%. Subiecţii au realizat acest protocol de exerciţii de două ori, în ordine aleatorie şi separate de un interval de trei săptămâni. După una dintre probe, se rehidratau cu apă în cantitatea dorită. După cealaltă, se rehidratau cu cantităţi moderate de bere.
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