Branco Braulio Henrique Magnani, Fukuda David Hideyoshi, Andreato Leonardo Vidal, Santos Jonatas Ferreira da Silva, Esteves João Victor Del Conti, Franchini Emerson
Sports and Physical Education School of the University of Sao Paulo, Sao Paulo, Brazil.
Combat Sports and Martial Arts Research Group of the Physical Education and Sports School, University of Sao Paulo, Sao Paulo, Brazil.
PLoS One. 2016 Mar 9;11(3):e0150517. doi: 10.1371/journal.pone.0150517. eCollection 2016.
The present study aimed to evaluate the effects of using hyperbaric oxygen therapy during post-training recovery in jiu-jitsu athletes.
Eleven experienced Brazilian jiu-jitsu athletes were investigated during and following two training sessions of 1h30min. Using a cross-over design, the athletes were randomly assigned to passive recovery for 2 hours or to hyperbaric oxygen therapy (OHB) for the same duration. After a 7-day period, the interventions were reversed. Before, immediately after, post 2 hours and post 24 hours, blood samples were collected to examine hormone concentrations (cortisol and total testosterone) and cellular damage markers [creatine kinase (CK), aspartate aminotransferase (AST), alanine aminotransferase (ALT), and lactate dehydrogenase (LDH)]. Moreover, the rating of perceived exertion (RPE) and recovery (RPR) scales were applied.
Final lactate [La] values (control: 11.9 ± 1.4 mmol/L, OHB: 10.2 ± 1.4 mmol/L) and RPE [control: 14 (13-17 a.u.), OHB: 18 (17-20 a.u.)] were not significantly different following the training sessions. Furthermore, there was no difference between any time points for blood lactate and RPE in the two experimental conditions (P>0.05). There was no effect of experimental conditions on cortisol (F1,20 = 0.1, P = 0.793, η2 = 0.00, small), total testosterone (F1,20 = 0.03, P = 0.877, η2 = 0.00, small), CK (F1,20 = 0.1, P = 0.759, η2 = 0.01, small), AST (F1,20 = 0.1, P = 0.761, η2 = 0.01, small), ALT (F1,20 = 0.0, P = 0.845, η2 = 0.00, small) or LDH (F1,20 = 0.7, P = 0.413, η2 = 0.03, small). However, there was a difference between the two experimental conditions in RPR with higher values at post 2 h and 24 h in OHB when compared to the control condition (P<0.05).
Thus, it can be concluded that OHB exerts no influence on the recovery of hormonal status or cellular damage markers. Nonetheless, greater perceived recovery, potentially due to the placebo effect, was evident following the OHB condition.
本研究旨在评估高压氧疗法对柔术运动员训练后恢复的影响。
对11名经验丰富的巴西柔术运动员在两次1小时30分钟的训练期间及之后进行了调查。采用交叉设计，运动员被随机分配接受2小时的被动恢复或相同时长的高压氧疗法（OHB）。7天后，干预措施互换。在训练前、训练结束后即刻、训练后2小时和训练后24小时采集血样，检测激素浓度（皮质醇和总睾酮）以及细胞损伤标志物[肌酸激酶（CK）、天冬氨酸转氨酶（AST）、丙氨酸转氨酶（ALT）和乳酸脱氢酶（LDH）]。此外，还应用了主观用力程度（RPE）和恢复（RPR）量表。
训练后最终乳酸[La]值（对照组：11.9±1.4 mmol/L，OHB组：10.2±1.4 mmol/L）和RPE[对照组：14（13 - 17任意单位），OHB组：18（17 - 20任意单位）]无显著差异。此外，在两种实验条件下，血乳酸和RPE在任何时间点均无差异（P>0.05）。实验条件对皮质醇（F1,20 = 0.1，P = 0.793，η2 = 0.00，小效应）、总睾酮（F1,20 = 0.03，P = 0.877，η2 = 0.00，小效应）、CK（F1,20 = 0.1，P = 0.759，η2 = 0.01，小效应）、AST（F1,20 = 0.1，P = 0.761，η2 = 0.01，小效应）、ALT（F1,20 = 0.0，P = 0.845，η2 = 0.00，小效应）或LDH（F1,20 = 0.7，P = 0.413，η2 = 0.03，小效应）均无影响。然而，两种实验条件在RPR方面存在差异，与对照组相比，OHB组在训练后2小时和24小时的值更高（P<0.05）。
因此，可以得出结论，OHB对激素状态或细胞损伤标志物的恢复没有影响。尽管如此，OHB条件下明显有更大的主观恢复感，这可能是由于安慰剂效应。
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