Towards promoting the well-being of wheelchair users by measuring physical activity

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Towards promoting the well-being of wheelchair users by measuring physical activity

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Publication Bachelor thesis
Title Towards promoting the well-being of wheelchair users by measuring physical activity
Author Abella, Daniel
Date 2020
English abstract
To measure physical activity in a wheelchair user is important. Disabled people have been found to be less active and it has negative health implications. By relating to ones own physical activity in concrete form it is easier to reinforce a positive attitude towards being physically active. The aim of this thesis is to show how a system can be built, that is able to collect measurements from sensors, with usability in mind. The system consists of software that integrates an iPhone, Apple Watch and a Tacx rotation sensor mounted on a wheelchair. With the help of a physics model these measurements can estimate energy expenditure of a wheelchair user. The system was tested with four participants performing subjectively decided low, moderate and vigorous physical activity while the system collected data. In terms of absolute energy expenditure the system was inaccurate. On the other hand, correlations were found between the calculated energy expenditures and physical activity. Using measurements from the rotations sensor a correlation of 0.7315 was found between the calculated energy expenditure and physical activity, a correlation of 0.5385 using measurements from the GPS and a correlation of 0.6452 using measurements from Apples own proprietary algorithm. The created system is a promising prototype towards objective measurement of physical activity in wheelchair users.
Publisher Malmö universitet/Teknik och samhälle
Language eng (iso)
Subject Wheelchair
Physics
Energy expenditure
Commercial wearables
Wheelchair user energy expenditure
Measuring energy expenditure
Physical activity
Measuring physical activity in wheelchair users
Using commercial wearables to measure physical activity
Physics model energy expenditure
Physics model physical activity
Handle http://hdl.handle.net/2043/31733 Permalink to this page
Link to publication in DiVA Find this research publication in DiVA (n/a for student publ.)
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