Physical Education Department, University of Unopar, Nilópolis 36045-050, Brazil.
Physical Education Department, Federal University of Paraíba, João Pessoa 58051-900, Brazil.
Int J Environ Res Public Health. 2019 Jul 19;16(14):2577. doi: 10.3390/ijerph16142577.
This study was designed to analyze the chronical responses of the hormonal and immune systems after a CrossFit training period of six months as well as to compare these results between genders. Twenty-nine CrossFit practitioners (35.3 ± 10.4 years, 175.0 ± 9.2 cm, 79.5 ± 16.4 kg) with a minimum CrossFit experience of six months were recruited, and hormonal and immune responses were verified every two months during training. The training was conducted in five consecutive days during the week, followed by two resting days. Testosterone (T) values were significantly higher at the last measurement time (T6 = 346.0 ± 299.7 pg·mL) than at all the other times ( < 0.002) and were higher in men than in women ( < 0.001). Cortisol (C) levels were lower at all times compared to the initial level before training, and differences were observed between men and women, with men having a lower value (T0: = 0.028; T2: = 0.013; T4: = 0.002; and T6: = 0.002). The TC ratio in women was lower at all times ( < 0.0001) than in men. Significant effects on CD8 levels at different times (F = 7.287; = 0.002; η = 0.213) and between genders (F = 4.282; = 0.048; η = 0.137), and no differences in CD4 levels were observed. CrossFit training changed the serum and basal levels of testosterone and cortisol in men (with an increase in testosterone and a decrease in cortisol).
本研究旨在分析六个月 CrossFit 训练周期后激素和免疫系统的慢性反应，并比较男女之间的结果。招募了 29 名 CrossFit 练习者（35.3 ± 10.4 岁，175.0 ± 9.2 厘米，79.5 ± 16.4 公斤），他们的 CrossFit 经验至少有六个月，并且在训练期间每两个月验证一次激素和免疫反应。训练在一周的连续五天进行，然后休息两天。最后一次测量时（T6 = 346.0 ± 299.7 pg·mL）的睾酮（T）值明显高于其他所有时间（<0.002），且男性高于女性（<0.001）。与训练前的初始水平相比，皮质醇（C）水平在所有时间都较低，且男女之间存在差异，男性的皮质醇值较低（T0：= 0.028；T2：= 0.013；T4：= 0.002；T6：= 0.002）。女性的 TC 比值在所有时间都较低（<0.0001）。不同时间（F = 7.287；= 0.002；η = 0.213）和性别（F = 4.282；= 0.048；η = 0.137）之间 CD8 水平的显著影响，而 CD4 水平没有差异。CrossFit 训练改变了男性的血清和基础睾酮和皮质醇水平（睾酮增加，皮质醇减少）。
