Clinical and biochemical characteristics of high-intensity functional training (HIFT) and overtraining syndrome: findings from the EROS study (The EROS-HIFT)
Clinical and biochemical characteristics of high-intensity functional training (HIFT) and overtraining syndrome: findings from the EROS study (The EROS-HIFT)
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DOI：
10.1080/02640414.2018.1555912
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发表时间：
2019-06-03
影响因子：
3.4
通讯作者：
Gazola, Matheus
中科院分区：
文献类型：
--
作者：
Cadegiani, Flavio A.;Kater, Claudio E.;Gazola, Matheus
高强度功能性训练方案（如CrossFit）对代谢和激素的影响尚不清楚。目前对cf相关过度训练综合征（OTS）的诱因、临床及生化特征了解甚少。EROS研究比较了OTS影响运动员（OTS）和健康运动员（ATL）以及非体育活动对照组（NPAC）的内分泌和代谢反应、饮食、社会、心理和身体特征。目前的研究是对EROS研究的CF亚组进行事后分析，以评估ATL和OTS中CF的具体特征。在专门练习CF和NPAC的ots影响（CF- ots）和健康（CF- atl）运动员之间进行整体和两两比较。与NPAC相比，CF-ATL在胰岛素耐量测试（ITT）中产生更早、更强的皮质醇、GH和催乳素反应，增加中性粒细胞，降低乳酸，增加睾酮，改善睡眠质量，更好的心理表现，增加测量与预测的基础代谢率（BMR）比率和脂肪氧化，以及更好的水合作用。相反，超过90%的CF适应性变化在OTS下丢失，包括对ITT的激素反应减弱，雌二醇增加，睾酮降低，BMR和脂肪氧化降低；在hft运动员中，最显著的诱发OTS的因素是长期低碳水化合物和低热量摄入。
The metabolic and hormonal consequences of high-intensity functional training regimens such as CrossFit (R) (CF) are unclear. Little is known about the triggers and clinical and biochemical features of CF-related overtraining syndrome (OTS). The EROS study compared endocrine and metabolic responses, and eating, social, psychological and body characteristics of OTS-affected (OTS) and healthy athletes (ATL), and non-physically active controls (NPAC). The current study is a post-hoc analysis of the CF subgroups of the EROS study, to evaluate specific characteristics of CF in ATL and OTS. Parameters were overall and pairwise compared among OTS-affected (CF-OTS) and healthy (CF-ATL) athletes that exclusively practiced CF, and NPAC. CF-ATL yielded earlier and enhanced cortisol, GH, and prolactin responses to an insulin tolerance test (ITT), increased neutrophils, lower lactate, increased testosterone, improved sleep quality, better psychological performance, increased measured-to-predicted basal metabolic rate (BMR) ratio and fat oxidation, and better hydration, when compared to NPAC. Conversely, more than 90% of the adaptive changes in CF were lost under OTS, including an attenuation of the hormonal responses to an ITT, increased estradiol, decreased testosterone, and decreased BMR and fat oxidation; the most remarkable trigger of OTS among HIFT athletes was the long-term low carbohydrate and calorie intake.