Title
Is Human Walking A Network Medicine Problem? An Analysis Using Symbolic Regression Models With Genetic Programming
Abstract
Background and Objective: Human walking is typically assessed using a sensor placed on the lower back or the hip. Such analyses often ignore that the arms, legs, and body trunk movements all have significant roles during walking; in other words, these body nodes with accelerometers form a body sensor network (BSN). BSN refers to a network of wearable sensors or devices on the human body that collects physiological signals. Our study proposes that human locomotion could be considered as a network of well-connected nodes.Methods: While hypothesizing that accelerometer data can model this BSN, we collected accelerometer signals from six body areas from ten healthy participants performing a cognitive task. Machine learning based on genetic programming was used to produce a collection of non-linear symbolic models of human locomotion.Results: With implications in precision medicine, our primary finding was that our BSN models fit the data from the lower back's accelerometer and describe subject-specific data the best compared to all other models. Across subjects, models were less effective due to the diversity of human sizes.Conclusions: A BSN relationship between all six body nodes has been shown to describe the subject specific data, which indicates that the network-medicine relationship between these nodes is essential in adequately describing human walking. Our gait analyses can be used for several clinical applications such as medical diagnostics as well as creating a baseline for healthy walking with and without a cognitive load. Published by Elsevier B.V.
Year
DOI
Venue
2021
10.1016/j.cmpb.2021.106104
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
Keywords
DocType
Volume
walking, genetic programming, mathematical model, symbolic regression, wearables, acceleration gait measures
Journal
206
ISSN
Citations 
PageRank 
0169-2607
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Pritika Dasgupta100.34
James Alexander Hughes200.34
Mark Daley300.34
Ervin Sejdic414625.55