从站立战斗到地面战斗的有效过渡:对视力受损的柔道运动员的分析
Daniele Detanico1, Vinícius de Oliveira Souza Gulias2, Nathalie Azeredo Bahiense Gomes2
1Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.
Frontiers in sports and active living
|January 26, 2026
概括
视力受损的柔道运动员,特别是完全失明的运动员 (J1),比部分视力受损的运动员 (J2) 更有效地过渡到地面作战. 固定化技术 (osae-komi-waza) 是两组Ippon得分的关键.
科学领域:
- 运动科学 运动科学 运动科学
- 适应性的体育运动
- 武术 武术是一种武术.
背景情况:
- 视力障碍运动员的柔道 (VI柔道) 涉及复杂的技术和战略适应.
- 从站立 (tachi-waza) 过渡到基础 (ne-waza) 是影响VI柔道比赛结果的关键阶段.
- 柔道运动员被分为J1 (完全失明) 和J2 (部分视力) 类别,每个类别都有独特的挑战.
研究的目的:
- 为了检查高水平的VI柔道运动员从站立到地面工作过渡的有效性.
- 为了比较J1和J2运动类之间的过渡效率.
- 确定影响VI柔道成功过渡的关键技术和因素.
主要方法:
- 观察性研究分析了来自巴黎2024年残奥会的146名柔道运动员的195个视频.
- 使用奇平方测试来评估有效行动,过渡结果和体育课程之间的关联 (p < 0.05).
- 分析的重点是过渡速度,运动员的体位 (uke),比赛状态和特定技术.
主要成果:
- 与J2运动员相比,J1运动员的有效过渡频率明显高 (p=0.028).
- 最常用的技术是osae-komi-waza (固定化技术),在J1和J2组中,它导致 ippon 的频率更高 (p=0.004).
- 在J1和J2运动员之间没有观察到过渡速度,体位或比赛状态的显著差异 (p > 0.05).
结论:
- 与J2运动员相比,J1运动员在执行有效的站立到地面的过渡方面更成功.
- 在VI柔道中,osae-komi-waza是实现两种分类的ippon的关键技巧.
- 结果提供了对VI柔道表现特征的初步见解,支持根据新分类系统的运动员发展.
相关概念视频
02:31Phase Transitions
22.9K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
22.9K
02:58Properties of Transition Metals
29.7K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
29.7K
01:17Standing Waves
5.4K
Sometimes waves do not seem to move; rather, they just vibrate in place. Unmoving waves can be seen on the surface of a glass of milk kept in a refrigerator, which is one example of standing waves. Vibrations from the refrigerator motor create waves on the milk that oscillate up and down but do not seem to move across the surface. These waves are formed or created by the superposition of two or more identical moving waves in opposite directions. The waves move through each other, with their...
5.4K
01:58Cooperative Allosteric Transitions
8.7K
Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
8.7K
01:02Noncompartmental Analysis: Mean Transit, Absorption and Dissolution Time
379
When drugs are administered extravascularly, a comprehensive evaluation through noncompartmental analysis becomes imperative. This analytical approach considers various parameters that play a crucial role in understanding the pharmacokinetics of these drugs.
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
One of the key parameters is the mean transit time (MTT), which refers to the total duration required for drug molecules to transit through the body. MTT is determined by calculating the ratio of the area under the moment curve to the area...
379
02:39Phase Transitions: Vaporization and Condensation
20.8K
The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...
20.8K