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首页> 外文期刊>Revista Brasileira de Medicina do Esporte >Suplementa??o de creatina e treinamento de for?a: altera??es na resultante de for?a máxima dinamica e variáveis antropométricas em universitários submetidos a oito semanas de treinamento de for?a (hipertrofia)
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Suplementa??o de creatina e treinamento de for?a: altera??es na resultante de for?a máxima dinamica e variáveis antropométricas em universitários submetidos a oito semanas de treinamento de for?a (hipertrofia)

机译：肌酸补充和力量训练：接受八周力量训练（肥大）的大学生最大动态力量和人体测量学变量的结果变化

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OBJECTIVE: To verify the alterations promoted by creatine supplementation in the anthropometric variables and the resultant of dynamic maximum strength (RDMS) in college students submitted to 8 wk of strength training. METHODOLOGY: The sample consisted of 18 male college students, aged between 19 to 25 years. Height (cm), body mass (kg) and tests of maximum voluntary muscular action (1MVMA) weight in the squat were determined prior to the training. The subjects were divided in two groups: A (creatine) or B (placebo).The double-blind protocol was adopted. After 8 weeks of strength training, the tests battery from the pre-training was repeated. RESULTS: After 8 wk of training, it was verified that both groups had statistically significant (SS) alterations in the RDMS in all the exercises (p = 0.007 / 0.008). The analysis of the percentile improvement (PI) and the RDMS delta in the squat exercises, military press and close-grip-extensions, showed that group A had positive SS alterations higher than group B (p = 0.008 / 0.038). Lean body mass only SS increased in group A (p = 0.038). However, the percentage of body fat did not show alterations in none of the groups. The relationship between the PI of the arm and forearm circumferences (C) and the PI in the RDMS of the development exercise was SS (r = 0.481 and 0.546, respectively), as well as between the PI in the thigh C and the PI of the RDMS of the squat exercise (r = 0.619). CONCLUSION: Regardless the substance ingested, strength training was able to increase in RDMS; however, creatine supplementation was shown to be more efficient that the placebo, showing higher percentual and delta improvement in strength.
机译：目的：验证肌酸补充剂在人体测量变量中的改变以及动态最大强度（RDMS）的结果，这些学生接受了8周的力量训练。方法：样本包括18位年龄在19至25岁之间的男大学生。在训练之前，先确定下蹲的身高（cm），体重（kg）和最大自愿性肌肉动作（1MVMA）重量。将受试者分为A组（肌酸）或B组（安慰剂），并采用双盲方案。经过8周的力量训练后，重复了训练前的测试电池。结果：经过8周的训练，证实两组在所有练习中RDMS的统计学差异（SS）均具有统计学意义（p = 0.007 / 0.008）。在深蹲练习，军事新闻和近距离握力练习中对百分位数改善（PI）和RDMS增量的分析表明，A组的SS阳性变化高于B组（p = 0.008 / 0.038）。 A组仅瘦体重SS增加（p = 0.038）。但是，两组中的体脂百分比均未显示出变化。臂部和前臂圆周的PI（C）与发育训练的RDMS中的PI之间的关系为SS（分别为r = 0.481和0.546），以及大腿C的PI与前肢的PI之间的关系。深蹲运动的RDMS（r = 0.619）。结论：无论摄入何种物质，力量训练都能增加RDMS。然而，肌酸补充剂被证明比安慰剂更有效，表现出更高的百分比和增量强度改善。

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