生理学决定因素与GNSS衍生技术特征之间的关联在越野滑雪中的滑轮滑雪
Shunya Uda1,2, Naoto Miyamoto2, Wako Kajiwara1,2
1Graduate School of Health and Sports Science, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe 610-0394, Japan.
Sensors (Basel, Switzerland)
|April 26, 2025
概括
耐力等生理学决定因素对越野滑轮滑雪的表现产生重大影响. 增强全身和上身的耐力是提高滑雪技巧和比赛时间的关键.
科学领域:
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
- 生物力学 生物力学
背景情况:
- 越野滑雪的表现依赖于生理能力和技术执行的复杂相互作用.
- 了解影响技术和比赛结果的特定生理因素对于有针对性的训练至关重要.
- 以前的研究已经探索了生理预测因素,但将精确的运动分析与全面的生理测试相结合,可以提供更深入的见解.
研究的目的:
- 为了研究生理学决定因素与滑雪技巧/滑雪比赛表现在越野滑雪中的关联.
- 将全球导航卫星系统 (GNSS) 的运动数据与基于实验室的生理评估相结合.
- 确定比赛表现的关键生理预测因素及其与滑雪速度和周期特征的关系.
主要方法:
- 19名训练有素的男子滑雪运动员参加了10公里长的滑轮滑雪比赛.
- 使用GNSS技术测量了滑雪速度,循环长度,循环时间和比赛期间的次技术使用.
- 通过跑步机和滑雪人体测试来评估全身和上身的耐力/功率,包括双波测试 (TTE-DPT) 和 VO2max 的杆走/跑测试.
主要成果:
- 在双排测试 (TTE-DPT) 期间,时间到疲劳和VO2max是比赛表现的最强预测因素 (r = -0.84和r = -0.72,分别;p < 0.01).
- 无论是TTE-DPT还是VO2max都与滑雪速度 (r = 0.81和r = 0.79分别;p < 0.01) 和周期长度 (r = 0.47和r = 0.58分别;p < 0.05) 有显著的关联.
- 这些生理测量特别与最常用的滑雪技术有关.
结论:
- 发展全身和上身耐力对于提高越野滚雪技术效率至关重要.
- 生理能力,特别是耐力,直接影响关键的动力学变量,如滑雪速度和周期长度.
- 这些发现强调了全面的生理训练对于优化越野滑雪比赛表现的重要性.
相关概念视频
01:30Types of Global Positioning System Surveys
38
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
38
01:26Errors in Global Positioning System
22
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
22
01:30Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
14
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
14
01:28Field Application of Global Positioning System
19
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
19