جستجوی مقالات مرتبط با کلیدواژه « بوکس » در نشریات گروه « تربیت بدنی »

The purpose of the present study was to compare the effect of creatine malate, betaine and beta-alanine supplements on the performance of boxing athletes.

First, dependent variables were measured in 15 boxing athletes and from the next day they consumed the first supplement for ten days. Then a wash-out period was considered for two weeks, after that the subjects consumed the second supplement for ten days. Another two-weeks was considered for wash-out and after that the subjects consumed the third supplement for ten days. Dependent variables were measured after the end of each supplement period. The order of taking the supplements was chosen randomly.

One maximum repetition of squat and bench press following creatine malate intake were significantly higher compared to betaine (p<0.001, p<0.005 respectively) and control (both p<0.001) and following beta-alanine intake compared to betaine (p<0.007, p<0.017 respectively) and control (p<0.005, p<0.014 respectively). The duration of agility following beta-alanine consumption was significantly lower compared to creatine malate (p<0.015), betaine (p<0.001) and control (p<0.001). The reaction speed following beta-alanine consumption was significantly higher compared to creatine malate (p<0.016), betaine (p<0.023) and control (p<0.001).

The results of this research showed that the consumption of creatine malate is more effective in improving muscle strength and the consumption of beta-alanine is more effective in improving agility and reaction speed, and the consumption of betaine does not have a significant effect on the performance of boxing athletes.

Combat sports are associated event with a possible head injury and brain damage and the incidence of concussion and head injuries in boxing than any other sport but, examining this problem with reliable blood markers not. The purpose of this study was to investigate effect of boxing on changes of S100-B, CRP and leukocytes in boxer of Iran national team. For this reason, 10 players of elite boxer and 10 nonathlete targeted and available in selected to two experimental (n=10) and control (n=10) groups. Blood sample were taken in before, immediately after and 24 hours after boxing match for assessment of S-100B, CRP and leukocyte .Data were analyzed using by mean and standard deviation for statistical description, and analysis of variance with repeated measures test and Moncova test for inferential analysis of data) P≤0.05. (In case of significant results of bonferroni post hoc test were used to compare mean variables in each group separately in three stages. Statistical significant was set at P≤ 0.05. The result showed that boxing competition significantly increase levels of S100-B, CRP and leukocytes immediately after a boxing match P=0.000. Also, boxing competition significantly increase levels of S100-B, CRP and leukocytes in boxers P=0.001. No significant change were observed 24 hours after exercise P=0.7. S100-B, CRP and leukocytes showed a significant increase after the boxing match in the experimental group in comparison with control group P=0.000. Overall, study findings showed that the boxing competition and Mechanical impacts exerted on the athlete increased inflammatory factors S100-B, CRP and leukocytes immediately after the boxing match. It appears assessment of these indicators is useful tool for diagnosis of inflammation and monitoring of brain injuries caused by repetitive punches to head of boxers.