青春期前的跑步者在跑步动力学上表现出比青春期后的跑步者更大的变化
Eryn L Close1, Micah C Garcia1, David M Bazett-Jones1
1College of Health and Human Services, University of Toledo, Toledo, OH, USA.
Gait & posture
|May 27, 2023
概括
青春期前的跑步者表现出比青春期后的跑步者更多样化的跑步动作. 男女青少年长途跑步运动员在跑步时表现出类似的动力学变化.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 发展生理学 发展生理学
背景情况:
- 青春期涉及运动失调和在青春期增加的运动变化.
- 青少年跑步者的跑步动力学变异性尚未得到充分理解.
研究的目的:
- 为了研究青少年长途跑步者的动力学可变性差异.
- 为了比较两性之间的运行动力学变化和成熟阶段.
主要方法:
- 114名青少年跑步者 (8-19岁) 接受了3D地面跑步分析.
- 动力学变异性是用在立场阶段的关节角度的标准偏差来量化.
- 双向ANOVA比较了性别和成熟阶段 (前,中,青春期后) 之间的变化.
主要成果:
- 对部和脚外部旋转的变异性发现了成熟度的显著性别相互作用.
- 男性的部内部旋转变化更大;女性的脚内部旋转变化更大.
- 青春期前的跑步者在部和膝盖动力学上具有显著的变化,与中期和青春期后的跑步者相比.
结论:
- 青春期前的跑步者表现出比青春期后的跑步者更大的跑步动力学变性.
- 性似乎不是在青少年之间运行动态变化的主要差异化因素.
- 与成熟相关的变化可能会影响跑步模式,导致青春期后跑步者更一致的动力学.
相关概念视频
01:27Signs of Puberty
466
Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
466
01:09Changes in the Appendicular Skeleton with Age
2.1K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
2.1K