Motowidło Joanna, Stronska-Garbien Katarzyna, Bichowska-Pawęska Marta, Kostrzewa Maciej, Zając Adam, Ficek Krzysztof, Drozd Miłosz
Department of Sports Training, Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland.
Faculty of Physical Education, Gdansk University of Physical Education and Sport, 80-336 Gdansk, Poland.
J Clin Med. 2024 May 9;13(10):2792. doi: 10.3390/jcm13102792.
The aim of the study was to determine the effect of step load in hypoxia on the effectiveness of preoperative rehabilitation (PR) and hormone levels based on a case study. : We assessed the impact of variables such as rate of movement and time under tension (TUT) in normobaric hypoxia on the levels of growth hormone (GH), insulin-like growth factor 1 (IGF-1), and erythropoietin (EPO). Additionally, the impact of step load on the hypertrophy and strength of knee extensors and flexors was assessed. : The work uses a case study, the research subject of which was a 23-year-old female professional handball player. The tests included an isokinetic assessment of the peak torque of knee extensors and flexors as well as body composition analysis. : The results showed a more than (10.81-fold) increase in GH after the microcycle with time under tension (TUT). The deficit between the lower limbs was also reduced. : Using a hypoxic environment based on an appropriate altitude, combined with changes such as a short rest break between sets and a controlled tempo of movement with an eccentric phase, TUT may offer an alternative to the PR process, especially among athletes who care about fast RTS.
本研究旨在通过一项案例研究，确定低氧环境下的阶梯负荷对术前康复（PR）效果和激素水平的影响。：我们评估了常压低氧环境下运动速率和张力下时间（TUT）等变量对生长激素（GH）、胰岛素样生长因子1（IGF-1）和促红细胞生成素（EPO）水平的影响。此外，还评估了阶梯负荷对膝伸肌和屈肌肥大及力量的影响。：本研究采用案例研究，研究对象为一名23岁的女性职业手球运动员。测试包括膝伸肌和屈肌峰值扭矩的等速评估以及身体成分分析。：结果显示，在进行张力下时间（TUT）的微周期训练后，GH增加了超过（10.81倍）。下肢之间的差距也有所减小。：基于适当海拔高度使用低氧环境，结合组间短休息和带有离心阶段的受控运动节奏等变化，TUT可能为PR过程提供一种替代方案，尤其是在那些关注快速重返赛场的运动员中。
