Publications by authors named "Nicholas A Petrunoff"

Article Synopsis
  • Integration of mobile health data collection in cohort studies allows for more detailed tracking of health and lifestyle behaviors over time, particularly during the transition from university to the workforce, which can impact young adults' mental well-being.
  • The Health@NUS study aims to investigate the health behaviors and well-being trajectories of young adults during this transition by using mobile health technology to gather data over two years.
  • A total of 776 participants were enrolled, primarily female, Chinese, and undergraduate students, with regular assessments and data collection through devices like Fitbit and smartphone apps.
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Introduction: This review synthesized evidence from prospective cohort studies on the association of device-measured physical activity and sedentary behavior with cardiovascular disease and all-cause mortality among adults.

Methods: Five databases were searched from 2000 through April 29, 2020. Study quality was appraised using the NIH Quality Assessment Tool.

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Background: A poor diet contributes substantially to the development of noncommunicable diseases. In Singapore, it is recommended to consume at least 2 servings of fruits and vegetables daily to reduce the risk of developing noncommunicable diseases. However, the adherence rate among young adults is low.

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Background: Understanding patterns of physical activity and sedentary behavior is essential, but evidence from low- and middle-income countries remains limited. This study aimed to investigate the prevalence of physical activity and sedentary behavior in the Thai population; their sociodemographic correlates; and the contribution of specific domains to total physical activity.

Methods: We analyzed data from the 2021 Health Behavior Survey, a nationally representative survey, conducted by the Thailand National Statistical Office during the COVID-19 pandemic.

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Park use is associated with health, yet our understanding of park features related to their use is limited. Singapore's parks were audited for 30 micro-features, then geospatial analysis characterized micro-features scores for parks nearest to participants' homes. Adults (3,435) reported their park use and park-based physical activity.

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Background: Relationships between park access, park use, and wellbeing remain poorly understood. The objectives of this study were to investigate: (1) perceived and objective park access in relation to park use and physical activity in parks; and; (2) perceived and objective park access, park use and physical activity in parks and their associations with wellbeing.

Methods: An interviewer-assisted survey collected data on perceived time to walk to parks, park use time, park physical activity time and wellbeing (using a scale containing nine domains) amongst adult participants of the Singapore Multi-Ethnic Cohort.

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Objectives: This study investigated physical activity (PA) and sedentary behaviour (SB) among preschool-aged children in Singapore and potential correlates at multiple levels of the socioecological model from in-school and out-of-school settings.

Design: A cross-sectional study using a mixed-methods approach.

Participants: Parent-child dyads from six preschools in Singapore.

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We aim to assess sedentary behavior (SB) and its determinants, as well as potential strategies to reduce SB among employees in a tertiary hospital in Singapore, using a mixed-methods approach grounded in the socioecological framework. All employees with email and security guards of a tertiary hospital in Singapore were invited to complete a questionnaire that captured sociodemographics and self-reported domain-specific SB. Environmental influences of occupational SB were assessed using an adapted version of the Checklist for Health Promotion Environments at the Worksite (CHEW).

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Background: The purpose of this study was to assess the (previously untested) reliability and validity of survey questions commonly used to assess travel mode and travel time.

Methods: Sixty-five respondents from a staff survey of travel behaviour conducted in a south-western Sydney hospital agreed to complete a travel diary for a week, wear an accelerometer over the same period, and twice complete an online travel survey an average of 21 days apart. The agreement in travel modes between the self-reported online survey and travel diary was examined with the kappa statistic.

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Objective: The present study investigated parents' understanding and approaches to providing energy-dense and nutrient-poor 'extra foods' to pre-school children and explored variation between parents of low and high socio-economic status in relation to these issues.

Design: We conducted thirteen focus groups. Data were subject to framework analysis.

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