根据传感器分析,不同技能水平的男性桑达运动员在侧技术期间肌肉相间一致性的差异:一项横截面研究
Liang Li1,2, Tianxing Liu1, Guixian Wang1
1China Wushu School, Beijing Sport University, Beijing 100084, China.
Sensors (Basel, Switzerland)
|January 28, 2026
概括
与业余运动员相比,专业的桑达运动员在侧时表现出卓越的核心肌肉协调和神经肌肉控制. 这种在关键频段中增强的肌肉间连贯性表明了更高的技术能力.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 神经肌肉生理学 神经肌肉生理学
背景情况:
- 了解神经肌肉协调对于优化战斗运动技术至关重要.
- 肌肉间连贯性分析提供了关于复杂运动期间肌肉激活模式的见解.
- 技能水平显著影响运动员的运动控制策略.
研究的目的:
- 为了区分专业和业余桑达运动员之间的侧期间核心肌肉的肌肉间连贯性.
- 在Sanda.探索神经肌肉协调和技术技能之间的关系.
- 为评估战斗运动技巧建立一个定量基础.
主要方法:
- 三十六名男子桑达运动员被分为专业 (n=18) 和业余 (n=18) 组.
- 从15个核心肌肉和动力学数据中同步记录表面电肌图 (EMG) 信号.
- 进行了跨阿尔法,β和马频段的时间频率连贯性分析,以量化肌肉协调.
主要成果:
- 职业运动员在核心肌肉中显示出明显更高的根平均平方幅度 (RMS) 和整体EMG (iEMG) 值.
- 专业运动员在关键肌肉对的α,β和gamma波段中观察到优异的肌肉间连贯性.
- 在特定的肌肉对中发现了显著的连贯性差异,例如外侧斜-右腿骨 (α) 和右腿骨-双腿骨 (β).
结论:
- 桑达侧的技能差异植根于神经肌肉控制和肌肉协调效率.
- 肌肉间连贯性分析是对战斗体育技术能力的客观定量衡量.
- 该方法为培训优化和技术评估提供了科学基础.
相关概念视频
Cross-Sectional Research
12.5K
In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
12.5K
Profile Leveling and Cross Sections
1.6K
Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes. Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
1.6K
Finding Volume Using Cross-Sectional Area
61
For solids whose cross-sectional areas vary in a predictable way, volume can be determined by integrating these areas along an axis perpendicular to the slices. This approach is particularly useful for polyhedral solids, where classical geometric formulas may not be immediately applicable. A tetrahedron provides a clear example of how cross-sectional integration can be applied to a three-dimensional object with continuously changing geometry.Consider a tetrahedron with height h and a base that...
61
Spinal Cord: Cross-sectional Anatomy
4.6K
The cross-sectional anatomy of the spinal cord offers a detailed view of its complex structure and function within the central nervous system. At the core of the spinal cord lies the gray matter, characterized by its butterfly or "H"-shaped appearance in cross-section. This central region is enveloped by white matter, with the overall structure divided into symmetrical halves by the dorsal median sulcus and the ventral median fissure.
Gray Matter and its Components
Central to the gray matter is...
Gray Matter and its Components
Central to the gray matter is...
4.6K
Crossing Over
171.7K
Unlike mitosis, meiosis aims for genetic diversity in its creation of haploid gametes. Dividing germ cells first begin this process in prophase I, where each chromosome—replicated in S phase—is now composed of two sister chromatids (identical copies) joined centrally.
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
The homologous pairs of sister chromosomes—one from the maternal and one from the paternal genome—then begin to align alongside each other lengthwise, matching corresponding DNA positions in a process...
171.7K
Crossed Aldol Reaction Using Weak Bases
2.7K
This lesson deals with the crossed aldol reaction using weak bases. The self-condensation of an aldehyde having α hydrogen is prevented by adding it slowly to a mixture of formaldehyde and weak bases like hydroxide and alkoxide. Upon slow addition of the aldehyde, the base deprotonates the α carbon of the aldehyde to form the corresponding enolate. The enolate subsequently attacks the formaldehyde to form a single crossed product. Figure 1 depicts the aforementioned reaction.
2.7K


