Plin de zel, sportivul din imagine se antrenează fără să țină cont de nimic. Sare pe saltea de parcă vrea să „atingă” cerul, însă tot ce reușește este să vadă stele verzi. Imaginile de mai jos spun totul!
Sportul extrem, dăunător pentru inimă
Practicarea unor exerciţii fizice extreme, cum ar fi antrenamentele pentru un maraton, pot afecta inima. Aceasta este concluzia relevată de un studiu realizat cu 40 de sportivi de înaltă performanţă din Australia.
Pentru studiu, atleţii au fost investigaţi înainte cu două săptămâni de competiţie, imediat după desfăşurarea acesteia şi o săptămână mai târziu. După competiţie, au apărut modificări la nivelul inimii. Ventriculul drept era dilatat şi nu funcţiona în manieră optimă. Nivelul substanţei chimice cunoscute sub numele de BNP (produsă de inimă) a crescut excesiv. După o săptămână, cei mai mulţi dintre atleţi şi-au recuperat starea cardiacă pe care o aveau înainte de maraton. Cu toate acestea, cinci dintre ei au rămas cu modificări ale ţesutului cardiac.
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