A Multi-Ingredient Containing Carbohydrate, Proteins L-Glutamine and L-Carnitine Attenuates Fatigue Perception with No Effect on Performance, Muscle Damage or Immunity in Soccer Players

摘要: We investigated the effects of ingesting a multi-ingredient (53g carbohydrate, 14.5g whey protein, 5g glutamine, 1.5g L-carnitine-L-tartrate) supplement, carbohydrate only, or placebo on intermittent performance, perception fatigue, immunity, and functional metabolic markers recovery. Sixteen amateur soccer players ingested their respective treatments before, during after performing 90-min repeated sprint test. Primary outcomes included time for test (IRS) followed by eleven 15 m sprints. Measurements creatine kinase, myoglobin, interleukine-6, Neutrophil; Lymphocytes Monocyte before (pre), immediately (post), 1h 24h exercise testing period. Overall, IRS sprints was not different between treatments. However, fatigue attenuated (P<0.001) (15.9±1.4) vs. (17.8±1.4) but (17.0±1.9) condition. Several changes in immune/inflammatory indices were noted as kinase peaked at while Interleukin-6 myoglobin increased both compared with baseline (P<0.05) all three conditions. Myoglobin lower post-exercise (241.8±142.6 ng·ml-1) CHO (265.4±187.8 (518.6±255.2 ng·ml-1). Carbohydrate also elicited neutrophil concentrations (3.9±1.5 109/L 4.9±1.8 109/L, P = 0.016) reduced monocytes count (0.36±0.09 109/L) to (0.42±0.09 (0.42±0.12 109/L). In conclusion, supplements did improve inflammatory immune function. attenuate serum only blunted leukocytosis.