Teschler Marc, Waranski Melina, Schmitz Boris, Mooren Frank C
Department of Rehabilitation Sciences, Faculty of Health, University of Witten/Herdecke, Witten, Germany.
DRV Klinik Königsfeld, Center for Medical Rehabilitation, Ennepetal, Germany.
Front Sports Act Living. 2024 Oct 23;6:1454630. doi: 10.3389/fspor.2024.1454630. eCollection 2024.
This brief report aimed to characterize inter-individual training responses following a single session of high-intense whole-body electromyostimulation (WB-EMS) using markers of muscle damage over a period of 72 h.
Twelve healthy individuals (5 men, 7 women; 32.0 ± 7 years) participated in a single 20-minute high-intensity WB-EMS training session. Markers of muscle damage, creatine kinase (CK) and myoglobin (Mb), were assessed before and immediately after training, as well as at 1.5, 3, 24, 48 and 72 h post-exercise. Lactate levels were determined pre- and post-exercise.
Overall, WB-EMS induced significant CK elevations, peaking at 72 h (18.358 ± 21.380 U/L; < 0.01), and correlating Mb levels peaking at 48 h (1.509 ± 1.394 ng/dl, < 0.01). Despite significant inter-individual variability in CK levels, both slow (SR) and fast responders (FR) were identified. FR showed significant increases in CK at all time points post WB-EMS ( < 0.05), whereas CK in SR significantly elevated after 48 h. Post-WB-EMS lactate concentration was identified to predict peak CK and Mb levels (r ≥ 0.65, both < 0.05).
High-intensity WB-EMS has the potential to induce severe muscle damage, as indicated by elevated levels of CK and Mb. We identified two distinct groups of individuals, SR and FR, indicating variability in response to WB-EMS. Furthermore, we suggest that individual responses to WB-EMS can be predicted based on post-WB-EMS lactate concentration.
本简要报告旨在通过在72小时内使用肌肉损伤标志物来描述单次高强度全身肌电刺激（WB-EMS）后的个体间训练反应。
12名健康个体（5名男性，7名女性；32.0±7岁）参加了一次20分钟的高强度WB-EMS训练课程。在训练前、训练后即刻以及运动后1.5、3、24、48和72小时评估肌肉损伤标志物肌酸激酶（CK）和肌红蛋白（Mb）。在运动前和运动后测定乳酸水平。
总体而言，WB-EMS导致CK显著升高，在72小时达到峰值（18.358±21.380 U/L；P<0.01），相关的Mb水平在48小时达到峰值（1.509±1.394 ng/dl，P<0.01）。尽管CK水平存在显著的个体间差异，但仍识别出了慢反应者（SR）和快反应者（FR）。FR在WB-EMS后的所有时间点CK均显著升高（P<0.05），而SR的CK在48小时后显著升高。WB-EMS后的乳酸浓度被确定可预测CK和Mb的峰值水平（r≥0.65，两者P<0.05）。
如CK和Mb水平升高所示，高强度WB-EMS有可能导致严重的肌肉损伤。我们识别出了两个不同的个体组，即SR和FR，表明对WB-EMS的反应存在差异。此外，我们建议可根据WB-EMS后的乳酸浓度预测个体对WB-EMS的反应。
