PERCEIVED AND OBJECTIVE NEIGHBOURHOOD BUILT ENVIRONMENT MEASURES AND ASSOCIATION WITH PHYSICAL ACTIVITY AND SEDENTARY TIME IN 9-14-YEAR-OLD CHILDREN IN SASKATOON, CANADA
Notice bibliographique
Résumé
Background: Canadian children and youth are not getting enough physical activity (PA), and spend on average 8.6 waking hours of their day in a sedentary state. Current trends of PA behavior among children are concerning; has prompted research investigating the correlates and determinants of PA in young people. The neighbourhood built environment (BE) has increasingly been identified as an important potential contributor to levels of PA. However, the scientific evidence of BE influences on children’s PA is still developing, compared to that among adults. A better understanding whether and how BE influence children's PA behaviors may help to identify interventions to promote active lifestyles from childhood. \nResearch aim: This study seeks to examine the potential influences of both children’s perceived and objective BE attributes on objectively-assessed multiple PA outcomes, specifically: Light physical activity (LPA), Moderate-to-vigorous physical activity (MVPA), and Sedentary time (ST), in children aged 9-14 years living in Saskatoon, Canada.\nMethodology: This study draws on data from the Smart Cities Healthy Kid’s (SCHK), and subsequent Seasonality and Active Saskatoon Kids (SASK) study. Children aged 9-14 years were recruited from the prairie city of Saskatoon, Canada. Neighborhood-scale objective BE characteristics were collected by independent trained assessors using two validated, replicable audit tools (Neighborhood Active Living Potential, NALP, and Irvine Minnesota Inventory, IMI). Children were surveyed on their perceptions of their neighbourhood BE and PA outcomes were objectively monitored (using accelerometer) for one week at three different time periods over a 1 year period. Using a mixed effect model, a multilevel modeling approach was taken to understand the association between BE characteristics and children’s PA outcomes.\nResults: Children’s perceived availability of parks and sidewalks predicted higher accumulation of MVPA and lower accumulation of ST in children. Children’s report of the absence of neighbourhood social disorder (e.g. threats from scary dogs/people) was associated with increased LPA, while reported concern for crime was associated with decreased MVPA. As expected, the highest level of observed activity friendliness was associated with decreased ST, however, the highest level of observed safety from crime was associated with increased ST and decreased PA. \nConclusion: Overall safe, walkable, and activity friendly neighbourhoods were found to influence children's activity behaviors. Even so, perceptions of the BE were more strongly associated with children’s PA outcomes than with objectively measured BE. Further context-specific studies and understanding of the policy process that influence changes are required.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,001 |
| Bibliométrie | 0,001 | 0,003 |
| Études des sciences et des technologies | 0,002 | 0,001 |
| Communication savante | 0,001 | 0,000 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,002 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».