Ziyaiyan Amirhosein, Kordi Mohammadreza, Hofmeister Martin, Chamari Karim, Moalla Wassim, Gaeini Abbas Ali
Department of Sport Physiology, Faculty of Physical Education and Sports Sciences, University of Tehran, Tehran, Iran.
Department Food and Nutrition, Consumer Centre of the German Federal State of Bavaria, Munich, Germany.
BMC Sports Sci Med Rehabil. 2023 Feb 6;15(1):15. doi: 10.1186/s13102-023-00627-1.
Skeletal muscle contractions due to exercise lead to the secretion of many proteins and proteoglycan peptides called myokines. Myostatin (MSTN) and Myogenin (MyoG) are two of the most important skeletal muscle growth regulatory factors related to myoblast differentiation and muscle hypertrophy. The present study aims at investigating the effects over eight weeks of high-intensity circuit training (HICT) on serum MyoG and MSTN in male soccer players.
The present study is a quasi-experimental study on 21 male soccer players (Experimental group: n = 11, Control group: n = 10) (ages 15.0 ± 3.4 years, body mass 55.7 ± 7.8 kg, height 173.3 ± 8.0 cm, Body mass index 18.4 ± 1.9 kg m, maximum oxygen uptake 61.89 ± 3.01 ml kg and the peak height velocity 14.5 ± 0.3 years). Participants were randomly divided into two groups: training group and a control group. The first resting blood samples were obtained in the morning-fasting state, and the second blood samples were obtained after the maximum aerobic test at pre- and post-HICT.
There were non-significant differences in resting serum values of MyoG (p = 0.309, p > 0.05) but significant differences in resting serum values of MSTN between the training and control groups after eight weeks of HICT (p = 0.003, p < 0.05). No significant differences were observed between groups in the acute response of serum values of MyoG (p = 0.413, p < 0.05) and MSTN (p = 0.465, p < 0.05) to the maximum aerobic test after eight weeks of HICT.
These results suggest that eight weeks of HICT can decrease the resting serum values of MSTN but not change the resting serum values of MyoG in male adolescent soccer players. Also, eight weeks of HICT does not affect the acute response of MSTN and MyoG after a maximum aerobic test.
运动引起的骨骼肌收缩会导致许多被称为肌动蛋白的蛋白质和蛋白聚糖肽的分泌。肌生长抑制素（MSTN）和肌细胞生成素（MyoG）是与成肌细胞分化和肌肉肥大相关的两个最重要的骨骼肌生长调节因子。本研究旨在调查高强度循环训练（HICT）对男性足球运动员血清MyoG和MSTN的八周影响。
本研究是一项针对21名男性足球运动员的准实验研究（实验组：n = 11，对照组：n = 10）（年龄15.0±3.4岁，体重55.7±7.8 kg，身高173.3±8.0 cm，体重指数18.4±1.9 kg/m，最大摄氧量61.89±3.01 ml/kg，峰值身高速度14.5±0.3岁）。参与者被随机分为两组：训练组和对照组。在早晨空腹状态下采集第一份静息血样，在HICT前后的最大有氧测试后采集第二份血样。
经过八周的HICT训练，训练组和对照组之间，静息血清MyoG值无显著差异（p = 0.309，p>0.05），但静息血清MSTN值有显著差异（p = 0.003，p<0.05）。经过八周的HICT训练后，两组之间血清MyoG值（p = 0.413，p<0.05）和MSTN值（p = 0.465，p<0.05）对最大有氧测试的急性反应无显著差异。
这些结果表明，八周的HICT训练可以降低男性青少年足球运动员静息血清MSTN值，但不会改变静息血清MyoG值。此外，八周的HICT训练不会影响最大有氧测试后MSTN和MyoG的急性反应。
