Zhou Yuping, Zhai Haiting, Wei Hongwen
School of Strength and Conditioning Training, Beijing Sport University, Beijing 100084, China.
Department of Public Education, Zhejiang College of Construction, Hangzhou 311231, China.
Life (Basel). 2024 Sep 3;14(9):1106. doi: 10.3390/life14091106.
Transcranial direct current stimulation (tDCS) is a non-invasive technique known to enhance athletic performance metrics such as vertical jump and lower limb strength. However, it remains unclear whether combining tDCS with the post-activation effects of high-load resistance training can further improve lower limb performance.
This study investigated the synergistic effects of tDCS and high-load resistance training, using electroencephalography to explore changes in the motor cortex and vertical jump dynamics.
Four experiments were conducted involving 29 participants. Each experiment included tDCS, high-load resistance training, tDCS combined with high-load resistance training, and a control condition. During the tDCS session, participants received 20 min of central stimulation using a Halo Sport 2 headset, while the high-load resistance training session comprised five repetitions of a 90% one-repetition maximum weighted half squat. No intervention was administered in the control group. Electroencephalography tests were conducted before and after each intervention, along with the vertical jump test.
The combination of tDCS and high-load resistance training significantly increased jump height ( < 0.05) compared to tDCS or high-load resistance training alone. As for electroencephalography power, tDCS combined with high-load resistance training significantly impacted the percentage of α-wave power in the frontal lobe area (F3) of the left hemisphere (F = 6.33, < 0.05). In the temporal lobe area (T3) of the left hemisphere, tDCS combined with high-load resistance training showed a significant interaction effect (F = 6.33, < 0.05). For β-wave power, tDCS showed a significant main effect in the frontal pole area (Fp1) of the left hemisphere (F = 17.65, < 0.01). In the frontal lobe area (F3) of the left hemisphere, tDCS combined with high-load resistance training showed a significant interaction effect (F = 7.53, < 0.05). The tDCS combined with high-load resistance training intervention also resulted in higher β-wave power in the parietal lobe area (P4) and the temporal lobe area (T4) ( < 0.05).
The findings suggest that combining transcranial direct current stimulation (tDCS) and high-load resistance training significantly enhances vertical jump performance compared to either intervention alone. This improvement is associated with changes in the α-wave and β-wave power in specific brain regions, such as the frontal and temporal lobes. Further research is needed to explore the mechanisms and long-term effects of this combined intervention.
经颅直流电刺激（tDCS）是一种非侵入性技术，已知可提高运动表现指标，如垂直跳跃和下肢力量。然而，tDCS与高负荷抗阻训练的激活后效应相结合是否能进一步改善下肢表现仍不清楚。
本研究调查tDCS与高负荷抗阻训练的协同效应，使用脑电图来探索运动皮层和垂直跳跃动力学的变化。
对29名参与者进行了四项实验。每个实验包括tDCS、高负荷抗阻训练、tDCS与高负荷抗阻训练相结合以及一个对照条件。在tDCS疗程中，参与者使用Halo Sport 2头戴式设备接受20分钟的中枢刺激，而高负荷抗阻训练疗程包括五次重复的90%一次重复最大值的负重半蹲。对照组不进行任何干预。在每次干预前后进行脑电图测试以及垂直跳跃测试。
与单独的tDCS或高负荷抗阻训练相比，tDCS与高负荷抗阻训练相结合显著增加了跳跃高度（P<0.05）。至于脑电图功率，tDCS与高负荷抗阻训练相结合显著影响了左半球额叶区域（F3）的α波功率百分比（F = 6.33，P<0.05）。在左半球颞叶区域（T3），tDCS与高负荷抗阻训练相结合显示出显著的交互作用（F = 6.33，P<0.05）。对于β波功率，tDCS在左半球额极区域（Fp1）显示出显著的主效应（F = 17.65，P<0.01）。在左半球额叶区域（F3），tDCS与高负荷抗阻训练相结合显示出显著的交互作用（F = 7.53，P<0.05）。tDCS与高负荷抗阻训练相结合的干预还导致顶叶区域（P4）和颞叶区域（T4）的β波功率更高（P<0.05）。
研究结果表明，与单独的任何一种干预相比，经颅直流电刺激（tDCS）与高负荷抗阻训练相结合可显著提高垂直跳跃表现。这种改善与特定脑区（如额叶和颞叶）的α波和β波功率变化有关。需要进一步的研究来探索这种联合干预的机制和长期效果。
