Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior

BACKGROUND: Recent evidence suggests that physical activity (PA) and sedentary behavior (SB) exert independent effects on health. Therefore, measurement methods that can accurately assess both constructs are needed. OBJECTIVE: To compare the accuracy of accelerometers placed on the hip, thigh, and w...

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Autores principales: Montoye, Alexander H.K., Pivarnik, James M., Mudd, Lanay M., Biswas, Subir, Pfeiffer, Karin A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AIMS Press 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5690356/
https://www.ncbi.nlm.nih.gov/pubmed/29546164
http://dx.doi.org/10.3934/publichealth.2016.2.298
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author Montoye, Alexander H.K.
Pivarnik, James M.
Mudd, Lanay M.
Biswas, Subir
Pfeiffer, Karin A.
author_facet Montoye, Alexander H.K.
Pivarnik, James M.
Mudd, Lanay M.
Biswas, Subir
Pfeiffer, Karin A.
author_sort Montoye, Alexander H.K.
collection PubMed
description BACKGROUND: Recent evidence suggests that physical activity (PA) and sedentary behavior (SB) exert independent effects on health. Therefore, measurement methods that can accurately assess both constructs are needed. OBJECTIVE: To compare the accuracy of accelerometers placed on the hip, thigh, and wrists, coupled with machine learning models, for measurement of PA intensity category (SB, light-intensity PA [LPA], and moderate- to vigorous-intensity PA [MVPA]) and breaks in SB. METHODS: Forty young adults (21 female; age 22.0 ± 4.2 years) participated in a 90-minute semi-structured protocol, performing 13 activities (three sedentary, 10 non-sedentary) for 3–10 minutes each. Participants chose activity order, duration, and intensity. Direct observation (DO) was used as a criterion measure of PA intensity category, and transitions from SB to a non-sedentary activity were breaks in SB. Participants wore four accelerometers (right hip, right thigh, and both wrists), and a machine learning model was created for each accelerometer to predict PA intensity category. Sensitivity and specificity for PA intensity category classification were calculated and compared across accelerometers using repeated measures analysis of variance, and the number of breaks in SB was compared using repeated measures analysis of variance. RESULTS: Sensitivity and specificity values for the thigh-worn accelerometer were higher than for wrist- or hip-worn accelerometers, > 99% for all PA intensity categories. Sensitivity and specificity for the hip-worn accelerometer were 87–95% and 93–97%. The left wrist-worn accelerometer had sensitivities and specificities of > 97% for SB and LPA and 91–95% for MVPA, whereas the right wrist-worn accelerometer had sensitivities and specificities of 93–99% for SB and LPA but 67–84% for MVPA. The thigh-worn accelerometer had high accuracy for breaks in SB; all other accelerometers overestimated breaks in SB. CONCLUSION: Coupled with machine learning modeling, the thigh-worn accelerometer should be considered when objectively assessing PA and SB.
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spelling pubmed-56903562018-03-15 Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior Montoye, Alexander H.K. Pivarnik, James M. Mudd, Lanay M. Biswas, Subir Pfeiffer, Karin A. AIMS Public Health Research Article BACKGROUND: Recent evidence suggests that physical activity (PA) and sedentary behavior (SB) exert independent effects on health. Therefore, measurement methods that can accurately assess both constructs are needed. OBJECTIVE: To compare the accuracy of accelerometers placed on the hip, thigh, and wrists, coupled with machine learning models, for measurement of PA intensity category (SB, light-intensity PA [LPA], and moderate- to vigorous-intensity PA [MVPA]) and breaks in SB. METHODS: Forty young adults (21 female; age 22.0 ± 4.2 years) participated in a 90-minute semi-structured protocol, performing 13 activities (three sedentary, 10 non-sedentary) for 3–10 minutes each. Participants chose activity order, duration, and intensity. Direct observation (DO) was used as a criterion measure of PA intensity category, and transitions from SB to a non-sedentary activity were breaks in SB. Participants wore four accelerometers (right hip, right thigh, and both wrists), and a machine learning model was created for each accelerometer to predict PA intensity category. Sensitivity and specificity for PA intensity category classification were calculated and compared across accelerometers using repeated measures analysis of variance, and the number of breaks in SB was compared using repeated measures analysis of variance. RESULTS: Sensitivity and specificity values for the thigh-worn accelerometer were higher than for wrist- or hip-worn accelerometers, > 99% for all PA intensity categories. Sensitivity and specificity for the hip-worn accelerometer were 87–95% and 93–97%. The left wrist-worn accelerometer had sensitivities and specificities of > 97% for SB and LPA and 91–95% for MVPA, whereas the right wrist-worn accelerometer had sensitivities and specificities of 93–99% for SB and LPA but 67–84% for MVPA. The thigh-worn accelerometer had high accuracy for breaks in SB; all other accelerometers overestimated breaks in SB. CONCLUSION: Coupled with machine learning modeling, the thigh-worn accelerometer should be considered when objectively assessing PA and SB. AIMS Press 2016-05-20 /pmc/articles/PMC5690356/ /pubmed/29546164 http://dx.doi.org/10.3934/publichealth.2016.2.298 Text en © 2016 Alexander H.K. Montoye et al., licensee AIMS Press This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
spellingShingle Research Article
Montoye, Alexander H.K.
Pivarnik, James M.
Mudd, Lanay M.
Biswas, Subir
Pfeiffer, Karin A.
Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior
title Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior
title_full Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior
title_fullStr Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior
title_full_unstemmed Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior
title_short Validation and Comparison of Accelerometers Worn on the Hip, Thigh, and Wrists for Measuring Physical Activity and Sedentary Behavior
title_sort validation and comparison of accelerometers worn on the hip, thigh, and wrists for measuring physical activity and sedentary behavior
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5690356/
https://www.ncbi.nlm.nih.gov/pubmed/29546164
http://dx.doi.org/10.3934/publichealth.2016.2.298
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