Trial reportMedical & biological engineering & computing2019
Sampling frequency influences sample entropy of kinematics during walking.
Trial report in Medical & biological engineering & computing, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
15 citing papers in PubMed.
- Comparison of Mean Values and Entropy in Accelerometry Time Series from Two Microtechnology Sensors Recorded at 100 vs. 1000 Hz During Cumulative Tackles in Young Elite Rugby League Players.Sensors (Basel, Switzerland) · 2024Article
- The Agreement between Wearable Sensors and Force Plates for the Analysis of Stride Time Variability.Sensors (Basel, Switzerland) · 2024Article
- Calculating sample entropy from isometric torque signals: methodological considerations and recommendations.Frontiers in physiology · 2023Article
- The influence of walking speed and effects of signal processing methods on the level of human gait regularity during treadmill walking.BMC sports science, medicine & rehabilitation · 2022Article
- An Analysis of Lower Limb Coordination Variability in Unilateral Tasks in Healthy Adults: A Possible Prognostic Tool.Frontiers in bioengineering and biotechnology · 2022Article
- On Quantization Errors in Approximate and Sample Entropy.Entropy (Basel, Switzerland) · 2021Article
- Effects of ECG Data Length on Heart Rate Variability among Young Healthy Adults.Sensors (Basel, Switzerland) · 2021Article
- Methodological considerations for a non-linear analysis of running in the heavy and severe intensity domains.European journal of applied physiology · 2021Article
- Sampling rate influences the regularity analysis of temporal domain measures of walking more than spatial domain measures.Gait & posture · 2021Article
- Entropy Analysis in Gait Research: Methodological Considerations and Recommendations.Annals of biomedical engineering · 2021Review
- Relative Consistency of Sample Entropy Is Not Preserved in MIX Processes.Entropy (Basel, Switzerland) · 2020Article
- COPD Patients Have a Restricted Breathing Pattern That Persists with Increased Metabolic Demands.COPD · 2020Article
- Sensor-based characterization of daily walking: a new paradigm in pre-frailty/frailty assessment.BMC geriatrics · 2020Article
- Article
- On the calculation of sample entropy using continuous and discrete human gait data.Entropy (Basel, Switzerland) · 2018Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Sample entropy (SaEn) has been used to assess the regularity of lower limb joint angles during walking. However, changing sampling frequency and the number of included strides can potentially affect the outcome. The present study investigated the effect of sample frequency and the number of included strides on the calculations of SaEn in joint angle signals recorded during treadmill walking. Eleven subjects walked at their preferred walking speed for 10 min, and SaEn was calculated on sagittal plane hip, knee, and ankle angle signals extracted from 50, 100, 200, 300, and 400 strides at sampling frequencies of 60, 120, 240, and 480 Hz. Increase in sampling frequency decreased the SaEn significantly for the three joints. The number of included strides had no effect on the SaEn calculated on the hip joint angle and only limited effect on the SaEn calculated on the knee and ankle joint signals. The present study suggests that the number of data points within each stride to a greater extent determines the size of the SaEn compared to the number of strides and emphasizes the use of a fixed number of data points within each stride when applying SaEn to lower limb joint angles during walking. Graphical abstract Sampling frequency influences sample entropy of kinematics during walking.
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Registered trials
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