体负荷对功能运动模式的影响
Kathryn S Bell1, Jasmine D Brooks1, Kara N Radzak1
1Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, Las Vegas, NV, USA.
International journal of exercise science
|September 10, 2024
概括
穿着战术背心显著损害了战术运动员的功能运动模式. 建议使用负载运动屏幕来评估这些人群的性能和受伤风险.
科学领域:
- 生物力学和运动学.
- 职业健康和安全问题 职业健康和安全问题
- 体育科学与绩效分析 运动科学与绩效分析
背景情况:
- 功能性运动对于日常活动和评估受伤风险至关重要.
- 战术人员 (警察,军人,消防员) 在值班时经常携带重重的干载荷.
- 外部负荷可以显著影响身体性能和运动效率.
研究的目的:
- 为了比较功能移动屏幕在加载和卸载条件下的结果.
- 为了识别身装甲对战术表现的影响.
- 提供关于外部负载如何影响功能运动的客观数据.
主要方法:
- 招募了24名身体活跃的参与者 (11名男性,13名女性).
- 参与者在两个平衡条件下完成了FusioneticsTM运动效率测试 (FMET):装载 (13.5公斤背心) 和卸载.
- 运动表演被视频录制,并对整体和子尺度质量进行评分.
主要成果:
- 在负载状态下观察到整体功能运动质量的显著下降 (12.6±7.3点,p<.001,d=1.8).
- 在双腿 (d=0.8),俯卧 (d=1.1),肩膀 (d=2.1) 和干运动 (d=0.9) 中,统计学上显著的下降.
- 没有发现负载对子宫或一腿腰运动有显著影响.
结论:
- 在战术运动员中,体装甲显著降低了功能运动模式的质量.
- 这些发现表明,功能移动屏幕应该包含战术群体的外部负载.
- 装载运动评估可以更准确地评估战术人员的准备和受伤风险.
相关概念视频
Deformation of Member under Multiple Loadings
159
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
159
Axial and Appendicular Muscles
1.3K
Skeletal muscles, the key players in our body's movement, can be classified into two groups based on their location and function: axial muscles and appendicular muscles. These classifications reflect the primary roles the muscles play in the body's structure and movement.
Axial Muscles
Axial muscles, situated along the body's midline, are intricately connected to the axial skeleton, which includes the skull, spine, ribs, and sternum. These muscles facilitate facial expressions and...
Axial Muscles
Axial muscles, situated along the body's midline, are intricately connected to the axial skeleton, which includes the skull, spine, ribs, and sternum. These muscles facilitate facial expressions and...
1.3K
General Case of Eccentric Axial Loading
178
Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
Consider a member subjected to equal and opposite forces that are applied along a line that does not coincide with the member's neutral axis. In unsymmetrical...
178
Changes in the Appendicular Skeleton with Age
1.9K
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...
1.9K
Stress: General Loading Conditions
301
To grasp the intricacy of real-world conditions where multiple loads are applied simultaneously to a structure, one might visualize a section passing through a specific point within a body, aligned parallel to the xy plane. This section is subjected to various forces, including original loads, normal forces, and shearing forces.
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes....
301
Eccentric Axial Loading in a Plane of Symmetry
169
Eccentric axial loading occurs when an axial load is applied away from the centroidal axis of a structural member. This scenario is common in engineering, where structural elements may not be directly aligned due to various design or functional requirements.
169


