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Updated: Sep 4, 2026
07:24
A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
Published on: April 21, 2017
Abstract:
Although the importance of appropriate statistical analyses of the results of physical therapy research is well documented, the theory and methodology of sampling, the procedure by which the data of research are usually obtained, has received much less attention in the physical therapy literature. To help fill this gap, some of the basic concepts and techniques of sampling are discussed.
Related Concept Videos
01:09Random Sampling Method
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest. Among the various sampling methods used by...
01:16Sampling Theorem
In signal processing, the analysis of continuous-time signals, denoted as x(t), often involves sampling techniques to convert these signals into discrete-time signals. This process is essential for digital representation and manipulation. A critical component in sampling is the train of impulses, characterized by the sampling interval and the sampling frequency. The relationship between these parameters and the original signal's properties dictates the success of the sampling process.