制动和推进阶段特征的传统和突出的古怪的背负式坐
Timothy J Suchomel1,2, Conor J Cantwell1,3, Brookelyn A Campbell1,4
1Department of Human Movement Sciences, Carroll University, Waukesha, WI, USA.
Journal of human kinetics
|May 1, 2024
概括
使用AEL-MAX和AEL-SUPRA负载的突出异常负载 (AEL) 背部坐,与传统 (TRAD) 坐相比,制动冲动显著增加. 然而,推进和杆速度没有受到影响,这表明AEL主要增强了异常制动阶段.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 强度和适应条件 强度和适应条件
背景情况:
- 了解传统 (TRAD) 和突出异常负载 (AEL) 练习之间的生物力学差异对于优化训练至关重要.
- 奇特的过载可能会增强神经肌肉适应,但它对背的力-时间和速度特征的特定影响需要进一步调查.
研究的目的:
- 为了比较制动和推进力-时间特征和TRAD和AEL背 squats期间的杆杆速度.
- 研究不同负载组合对这些生物力学变量的影响.
主要方法:
- 16名抵抗训练的男子在四个条件下进行了背:TRAD和AEL (AEL-MAX和AEL-SUPRA) 在一次重复最大 (1RM) 的50-80%.
- 在AEL条件下使用重量释放器,将异常负荷增加到100% (AEL-MAX) 和1RM的110% (AEL-SUPRA) 在第一次重复中.
- 测量和比较了制动和推进的平均力,持续时间,冲动和平均/峰值杆速度.
主要成果:
- 与TRAD坐相比,在AEL-MAX和AEL-SUPRA条件下观察到明显更大的制动冲动 (p < 0.03).
- 效果大小有利于AEL-SUPRA的制动冲动,表明适度的实际差异.
- 在 TRAD 和 AEL 条件之间,在测试负载中,在推进变量或杆速之间没有发现显著差异.
结论:
- 与TRAD腰相比,AEL背,特别是AEL-SUPRA,可以提供更大的偏心制动刺激.
- 背运动的推进阶段和总体杆速度没有受到AEL的显著改变.
- 需要进一步的研究来探索相对强度和负载分布对AEL培训适应性的影响.
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