在训练有素的三项运动员中,最大力量训练改善了肌特性,并增加了肌矩阵改造
Mats W Jacobs1, Joshua F Feuerbacher1, Falk Mersmann2
1Department of Sports Medicine and Exercise Therapy, Chemnitz University of Technology, Chemnitz, Germany.
Scientific reports
|July 27, 2025
概括
力量训练显著改善了三项运动员的肌硬度和肌肉力量. 这种干预增强了阿基里斯和骨肌的特性,即使同时进行高体积耐力训练.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
背景情况:
- 训练有素的三项运动员经常参加大量的耐力训练,可能会影响肌肉骨适应.
- 同时进行力量训练 (ST) 对耐力运动员肌特性的影响需要进一步研究.
- 了解肌矩阵重塑标记物对于优化训练计划至关重要.
研究的目的:
- 评估12周ST干预对三项运动员阿基里斯和骨硬度的影响.
- 评估在耐力运动员中ST后肌矩阵血液传播标记物的变化.
- 为了确定ST是否会改善肌肉力量和肌特性,尽管同时进行高体积有氧训练.
主要方法:
- 18名训练有素的三项运动员被随机分配到联合耐力和ST组或仅耐力控制组.
- 基于超声波的力延长测量评估了介入前和后的阿基里斯和骨肌硬度.
- 血液样本分析了实验性ST会议前后的矩阵金属蛋白酶 (MMP-I,MMP-III) 和脱氨酸度.
主要成果:
- 干预组显示,阿基里斯和骨肌的硬度显著增加,对称膝盖伸展器的强度,腰一次重复最多.
- 在干预组的实验性ST会话后,MMP-I,MMP-III和decorin的血清度增加.
- 只有在对照组,特纳辛-C度显著下降.
结论:
- 一个12周的ST干预有效地改善了三项运动员的脚部 flexor和四头骨骨肌肉的肌特性.
- 阿基里斯和骨肌的硬性对重型ST有类似的反应,即使与高体积耐力训练相结合.
- 在耐力运动员中,ST可以增强肌的机械特性和力量,而不会影响有氧性能.
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