Escola de Educação Física e Esporte, Universidade de São Paulo, Av. Prof. Mello Moraes 65, São Paulo, SP, Brazil.
Braz J Med Biol Res. 2011 Jun;44(6):592-7. doi: 10.1590/s0100-879x2011007500059. Epub 2011 May 13.
A single bout of resistance exercise (RE) induces hormonal and immune responses, playing an important role in a long-term adaptive process. Whole-body vibration (WBV) has also been shown to affect hormonal responses. Evidence suggests that combining WBV with RE may amplify hormonal and immune responses due to the increased neuromuscular load. Therefore, the aim of this study was to evaluate salivary cortisol (Scortisol) and salivary IgA (SIgA) concentrations following a RE session combined or not with WBV. Nine university students (22.9 ± 5.1 years, 175.8 ± 5.2 cm, and 69.2 ± 7.3 kg) performed five sets of squat exercise (70% one-repetition-maximum) combined (R+V30) or not (R) with WBV at 30 Hz. Saliva samples were obtained before and after exercise. Subjects also rated their effort according to the Borg CR-10 scale (RPE). Data were analyzed by a mixed model. RPE was higher after R+V30 (8.3 ± 0.7) compared to R (6.2 ± 0.7). However, Scortisol (pre: 10.6 ± 7.6 and 11.7 ± 7.6, post: 8.3 ± 6.3 and 10.2 ± 7.2 ng/mL for R and R+V30, respectively) and SIgA concentrations (pre: 98.3 ± 22.6 and 116.1 ± 51.2, post: 116.6 ± 64.7 and 143.6 ± 80.5 µg/mL for R and R+V30, respectively) were unaffected. No significant correlations were observed between Scortisol and RPE (r = 0.45, P = 0.22; r = 0.30, P = 0.42, for R and R+V30, respectively). On the basis of these data, neither protocol modified salivary cortisol or IgA, although RPE was higher after R+V30 than R.
单次抗阻运动（RE）会引起激素和免疫反应，在长期适应过程中发挥重要作用。全身振动（WBV）也已被证明会影响激素反应。有证据表明，由于神经肌肉负荷增加，将 WBV 与 RE 结合使用可能会放大激素和免疫反应。因此，本研究旨在评估 RE 联合或不联合 WBV 后唾液皮质醇（Scortisol）和唾液免疫球蛋白 A（SIgA）浓度。九名大学生（22.9 ± 5.1 岁，175.8 ± 5.2cm，69.2 ± 7.3kg）进行了五组深蹲运动（70%一次重复最大值），分别与 WBV 联合（R+V30）或不联合（R），WBV 频率为 30Hz。在运动前后采集唾液样本。根据 Borg CR-10 量表（RPE），受试者还对自己的努力程度进行了评分。数据采用混合模型进行分析。与 R 相比，R+V30 后 RPE 更高（8.3 ± 0.7 比 6.2 ± 0.7）。然而，Scortisol（R 为 10.6 ± 7.6 和 11.7 ± 7.6，R+V30 为 8.3 ± 6.3 和 10.2 ± 7.2ng/mL，R 为 98.3 ± 22.6 和 116.1 ± 51.2，R+V30 为 116.6 ± 64.7 和 143.6 ± 80.5 µg/mL）和 SIgA 浓度（R 为 116.6 ± 64.7 和 143.6 ± 80.5 µg/mL）不受影响。Scortisol 与 RPE 之间未观察到显著相关性（R 为 0.45，P = 0.22；R+V30 为 0.30，P = 0.42）。基于这些数据，两种方案均未改变唾液皮质醇或 IgA，尽管 R+V30 后 RPE 高于 R。
