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Comparison of hip and wrist accelerometers in a pre-adolescent population in free-living and semi-structured physical activity

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dc.contributor.advisorSofiya Alhassan
dc.contributor.authorAhmadi, Matthew
dc.contributor.departmentUniversity of Massachusetts Amherst
dc.contributor.departmentKinesiology
dc.date2024-03-28T20:18:03.000
dc.date.accessioned2024-04-26T18:19:45Z
dc.date.available2024-04-26T18:19:45Z
dc.date.submittedSeptember
dc.date.submitted2016
dc.description.abstractPURPOSE: The primary aim of this study was to examine the accuracy of a hip (Evenson algorithm) and wrist-worn (Crouter algorithm) accelerometer in assessing time spent in different intensity categories in pre-adolescent girls during semi-structured dance classes using direct observation (D.O.) as the criterion measure. The secondary aim of this study was to examine the validity of a wrist-worn accelerometer for dichotomizing pre-adolescent girls as meeting or not meeting different preselected doses of moderate-to-vigorous PA compared to the hip-worn accelerometer. METHODS: Data were collected and analyzed on a total of 6 participants (age = 10.22 ± 2.38) for the primary aim. Additionally, data was collected and analyzed on a total of 20 participants (age = 8.6 ± 1.6) for the secondary aim. RESULTS: Compared to D.O., the wrist-worn accelerometer was inaccurate in measuring time spent in light PA, vigorous PA and MVPA. Additionally, the hip-worn accelerometer was inaccurate in measuring time spent in sedentary time, light PA, vigorous PA and total PA. Further, for the secondary aim, there was a significant difference between device location and meeting PA dosage for three days and five days. CONCLUSION: Traditional accelerometer algorithms rely on the activity count cut-point method which provides mixed to poor results of activity intensity classification regardless of wear location. Future research should move away from the activity count cut-point method and aim to develop algorithms that use more of the rich data available from the accelerometers’ acceleration signal.
dc.description.degreeMaster of Science (M.S.)
dc.identifier.doihttps://doi.org/10.7275/8966699
dc.identifier.orcidN/A
dc.identifier.urihttps://hdl.handle.net/20.500.14394/33415
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1449&context=masters_theses_2&unstamped=1
dc.source.statuspublished
dc.subjectaccelerometer
dc.subjectactigraph
dc.subjectpre-adolescent
dc.subjectMedicine and Health Sciences
dc.titleComparison of hip and wrist accelerometers in a pre-adolescent population in free-living and semi-structured physical activity
dc.typeopenaccess
dc.typearticle
dc.typethesis
digcom.contributor.authorisAuthorOfPublication|email:mahmadi@kin.umass.edu|institution:University of Massachusetts Amherst|Ahmadi, Matthew
digcom.identifiermasters_theses_2/404
digcom.identifier.contextkey8966699
digcom.identifier.submissionpathmasters_theses_2/404
dspace.entity.typePublication
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