Mais um trabalho sobre o efeito citoprotetor do leite achocolatado no músculo esquelético

Olá Caros Colegas, envio a vocês mais um paper sobre o efeito do leite achocolatado sobre o dano muscular após exercício físico. Como sabemos, o exercício físico promove danos musculares e recentemente têm surgido a hipótese de que a suplementação com leite achocolatado reduz os danos ocasionados aos músculos estriados esqueléticos. De acordo com este trabalho, 500 mL de leite achocolatado são suficientes para evitar os danos. Assim, trago a vocês este trabalho para que façam as suas considerações a respeito do mesmo, e promovam as discussões necessárias.

Um grande abraço a todos(as)!

Exercise-induced muscle damage (EIMD) leads to decrements in muscle performance, increases in intramuscular proteins and delayed-onset of muscle soreness (DOMS). Previous research demonstrated that one litre of milk-based protein–carbohydrate (CHO) consumed immediately following muscle damaging exercise can limit changes in markers of EIMD possibly due to attenuating protein degradation and/or increasing protein synthesis. If the attenuation of EIMD is derived from changes in protein metabolism then it can be hypothesised that consuming a smaller volume of CHO and protein will elicit similar effects. Three independent matched groups of 8 males consumed 500 mL of milk, 1,000 mL of milk or a placebo immediately following muscle damaging exercise. Passive and active DOMS, isokinetic muscle performance, creatine kinase (CK), myoglobin and interleukin-6 were assessed immediately before and 24, 48 and 72 h after EIMD. After 72 h 1,000 mL of milk had a likely benefit for limiting decrements in peak torque compared to the placebo. After 48 h, 1,000 mL of milk had a very likely benefit of limiting increases in CK in comparison to the placebo. There were no differences between consuming 500 or 1,000 mL of milk for changes in peak torque and CK. In conclusion, decrements in isokinetic muscle performance and increases
in CK can be limited with the consumption of 500 mL of milk.
 

Keywords: Carbohydrate, Protein, Milk, Muscle damage, DOMS, Muscle performance.