{"id":6423,"date":"2025-11-21T10:15:34","date_gmt":"2025-11-21T10:15:34","guid":{"rendered":"https:\/\/screenhealth.uc.pt\/?p=6423"},"modified":"2025-11-21T10:16:33","modified_gmt":"2025-11-21T10:16:33","slug":"variability-in-moderate-to-vigorous-physical-activity-assessment-comparing-tri-axial-accelerometry-cut-off-points-in-children","status":"publish","type":"post","link":"https:\/\/screenhealth.uc.pt\/pt\/variability-in-moderate-to-vigorous-physical-activity-assessment-comparing-tri-axial-accelerometry-cut-off-points-in-children\/","title":{"rendered":"Variability in moderate-to-vigorous physical activity assessment: Comparing tri-axial accelerometry cut-off points in children"},"content":{"rendered":"
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Autores:<\/b>\u00a0Aristides M. Machado-Rodrigues, Daniela Rodrigues, Thales P. R. da Silva, Larissa Mendes, Pedro Silva, Helena Nogueira, Augusta Gama, Cristina Padez<\/span><\/div>\n
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Sports Medicine and Health Science (2025)<\/i><\/b><\/span><\/div>\n
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Abstract<\/b><\/div>\n
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The present study aimed to investigate the effect of the most frequently used cut-points (CoPs) on quantification of active children, as well as to analyse children\u00a0physical activity\u00a0(PA) quantification using vertical axis and vector magnitude (VM).<\/span><\/div>\n
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The sample comprised 303 children (160 girls) aged 6 years\u201310 years. Height, weight and\u00a0BMI\u00a0were assessed to control for\u00a0confounding variables\u00a0related to\u00a0PA levels. The tri-axial\u00a0accelerometer\u00a0was used for seven consecutive days of moderate-to-vigorous\u00a0physical activity\u00a0(MVPA) and\u00a0sedentary behaviour\u00a0(SB); specific\u00a0pediatric\u00a0cut-points for children (Evenson; Freedson; Puyau; Pulsford; and Mattocks) were used. A general linear model was used; the agreements of all CoPs were analyzed by Kappa index.<\/span><\/div>\n
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Freedson CoPs presented the highest percentage of active children (100%) for males and females during the weekdays, weekend, and for total assessed days. The Mattocks CoPs revealed the lowest proportion of active children for the weekdays (2.97%), weekend days (3.30%), and for the seven assessed days (1.65%).<\/span><\/div>\n
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The interpretation of\u00a0accelerometer\u00a0results must be critiqued in respect to whether children are meeting publicly adopted PA guidelines. The growing variety of analytical approaches and CoPs employed to analyse and evaluate\u00a0accelerometer\u00a0data in children makes it difficult to compare findings across different studies.<\/span><\/div>\n<\/div>\n<\/div>\n\t<\/div>\n<\/div>\n\n\n\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>\n\t\t
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Link: https:\/\/doi.org\/10.1016\/j.smhs.2025.02.008<\/a><\/p>\n\t<\/div>\n<\/div>\n\n\n\n\n\t\t\t<\/div> \n\t\t<\/div>\n\t<\/div> \n<\/div><\/div>","protected":false},"excerpt":{"rendered":"Autores:\u00a0Aristides M. Machado-Rodrigues, Daniela Rodrigues, Thales P. R. da Silva, Larissa Mendes, Pedro Silva, Helena Nogueira, Augusta Gama, Cristina Padez Sports Medicine and Health Science (2025) Abstract The present study...","protected":false},"author":1,"featured_media":6424,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-6423","post","type-post","status-publish","format-standard","has-post-thumbnail","category-articles"],"_links":{"self":[{"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/posts\/6423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/comments?post=6423"}],"version-history":[{"count":2,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/posts\/6423\/revisions"}],"predecessor-version":[{"id":6426,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/posts\/6423\/revisions\/6426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/media\/6424"}],"wp:attachment":[{"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/media?parent=6423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/categories?post=6423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/screenhealth.uc.pt\/pt\/wp-json\/wp\/v2\/tags?post=6423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}