无线仪器内 (WalkinSense系统) 的可靠性,用于测量时空和运动步态变量
Melanie Eckelt1, Jennifer Fayad1, Anne Backes1
1Department of Precision Health Luxembourg Institute of Health Strassen Luxembourg.
Journal of experimental orthopaedics
|January 26, 2026
概括
步行感应系统 (WSS) 在健康成年人不同速度和斜率的时空步行参数中显示出良好的测试-重新测试可靠性. 这种可穿戴技术是临床和研究环境中步态分析的可靠工具.
科学领域:
- 生物力学 生物力学
- 可穿戴技术可穿戴技术
- 步态分析 步态分析
背景情况:
- 可靠的步态分析对于临床评估和研究至关重要.
- 穿戴式仪器内系统,如WalkinSense系统 (WSS),提供现实世界的步态测量功能.
- 以前的验证证实了WSS的准确性.
研究的目的:
- 为了评估WalkinSense系统 (WSS) 的测试复试可靠性.
- 评估健康成年人在不同速度和斜率条件下行走和跑步时的WSS可靠性.
主要方法:
- 49名健康成年人参加了两次测试,间隔一周.
- 参与者在跑步机上以不同的速度 (3-9公里/小时) 和斜率 (-6°至+6°) 走路和跑步.
- 使用WSS记录了时空和动态步态参数,通过ICC,SEM,MDC和Bland-Altman图表评估了可靠性.
主要成果:
- 大多数时空参数表现出良好的可靠性 (ICC:0.76-0.95).
- 运动脚角的可靠性略低 (ICC:0.71-0.86).
- 对于时空测量,SEM%和MDC%通常低于10%,这表明测量误差低,灵敏度高.
结论:
- 世界步行测量系统 (WSS) 是一种可靠的工具,用于评估健康成年人的时空步行变量.
- 研究结果支持WSS在临床和研究环境中用于步态分析的实用性.
- 建议进行进一步的临床研究,以确认其在患者评估中的应用.
相关概念视频
02:46Uncertainty in Measurement: Reading Instruments
51.0K
Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
51.0K
01:29Reliability and Validity
13.8K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.8K
01:30Electronic Distance Measuring Instruments
500
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
500
01:26Kinematic Equations - I
14.6K
When an object moves with constant acceleration, the velocity of the object changes at a constant rate throughout the motion. The kinematic equations of motions are derived for such cases where the acceleration of the object is constant. The first kinematic equation gives an insight into the relationship between velocity, acceleration, and time. We can see, for example:
14.6K
01:23Instrument Transformers
459
Instrument transformers, comprising voltage transformers (VTs) and current transformers (CTs), play crucial roles in power substations by providing isolated replicas of current or voltage for measurement and protection purposes. Voltage transformers reduce the primary voltage to levels suitable for relay operation and measurement, while current transformers scale down the primary current. The primary winding of a current transformer often consists of a single turn, achieved by threading the...
459
01:12Instrument Calibration
698
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
698