ORCID Profile
0000-0002-6192-0033
Current Organisation
Deakin University
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Publisher: Elsevier BV
Date: 07-2022
DOI: 10.1016/J.HEALTHPLACE.2022.102859
Abstract: The 20-min neighbourhood (20 MN) concept aims to provide people the ability to meet their daily needs within a 20-min non-motorised trip from home. Evidence as to whether the 20 MN encourages more walking for transport or recreation is currently absent. This cross-sectional study used self-reported data from the Places and Locations for Activity and Nutrition study (ProjectPLAN) targeting adults (n = 843) residing in Melbourne or Adelaide, Australia. Multiple services and amenities were used to represent access to five service domains (healthy food, community resources, recreational resources, public open space, public transport). Address points meeting the access criteria for each of the five domains were defined as having a 20 MN. Non-20 MNs were defined as having five or fewer in idual services and amenities. This study examined if those residing in a 20 MN compared with a non-20MN undertook more walking for transport or for recreation. The analysis considered separately each of the cities to support the estimation of effects specific to each local context. Respondents residing in a 20 MN relative to a non-20MN had higher odds of walking for transport in Melbourne (OR = 4.24, 95% CI = 2.38, 7.56), whilst in Adelaide there was no evidence of a difference (OR = 1.31, 95% CI = 0.80, 2.13). In Melbourne, the mean time spent walking for transport was greater for 20 MNs (82.5 min/week, 95% CI = 65.3, 99.7) compared to non-20MNs (41.2 min/week, 95% CI = 32.7, 49.7). Whilst minutes spent walking for recreation was higher than minutes spent walking for transport, no differences were found between neighbourhood types and walking for recreation in either city. 20 MNs appeared to promote walking for transport in the higher density setting of Melbourne, but no association was observed in the lower density city of Adelaide. Further investigation is required to determine other factors beyond service provision that can promote walking for transport in Adelaide (e.g. pedestrian safety). Recreational walking did not differ across neighbourhood types highlighting that service provision and thus the 20 MN is not related to walking for exercise/recreation purposes.
Publisher: Public Library of Science (PLoS)
Date: 20-09-2018
Publisher: Springer Science and Business Media LLC
Date: 12-2019
DOI: 10.1186/S12966-019-0876-4
Abstract: Globally, many children fail to meet the World Health Organization’s physical activity and sedentary behaviour guidelines. Schools are an ideal setting to intervene, yet despite many interventions in this setting, success when delivered under real-world conditions or at scale is limited. This systematic review aims to i) identify which implementation models are used in school-based physical activity effectiveness, dissemination, and/or implementation trials, and ii) identify factors associated with the adoption, implementation and sustainability of school-based physical activity interventions in real-world settings. The review followed PRISMA guidelines and included a systematic search of seven databases from January 1st, 2000 to July 31st, 2018: MEDLINE, EMBASE, CINAHL, SPORTDiscus, PsycINFO, CENTRAL, and ERIC. A forward citation search of included studies using Google Scholar was performed on the 21st of January 2019 including articles published until the end of 2018. Study inclusion criteria: (i) a primary outcome to increase physical activity and/or decrease sedentary behaviour among school-aged children and/or adolescents (ii) intervention delivery within school settings, (iii) use of implementation models to plan or interpret study results and (iv) interventions delivered under real-world conditions. Exclusion criteria: (i) efficacy trials (ii) studies applying or testing school-based physical activity policies, and (iii) studies targeting special schools or pre-school and/or kindergarten aged children. 27 papers comprising 17 unique interventions were included. Fourteen implementation models (e.g., RE-AIM, Rogers’ Diffusion of Innovations, Precede Proceed model), were applied across 27 papers. Implementation models were mostly used to interpret results ( n = 9), for planning evaluation and interpreting results ( n = 8), for planning evaluation ( n = 6), for intervention design ( n = 4), or for a combination of designing the intervention and interpreting results ( n = 3). We identified 269 factors related to barriers ( n = 93) and facilitators ( n = 176) for the adoption ( n = 7 studies), implementation ( n = 14 studies) and sustainability ( n = 7 studies) of interventions. Implementation model use was predominately centered on the interpretation of results and analyses, with few ex les of use across all study phases as a planning tool and to understand results. This lack of implementation models applied may explain the limited success of interventions when delivered under real-world conditions or at scale. PROSPERO ( CRD42018099836 ).
Publisher: Springer Science and Business Media LLC
Date: 11-06-2019
Publisher: Elsevier BV
Date: 2023
Publisher: Springer Science and Business Media LLC
Date: 02-10-2014
Publisher: MDPI AG
Date: 23-12-2019
Abstract: This study examined two-year changes in patterns of activity and associations with body mass index (BMI) and waist circumference (WC) among adolescents. Inclinometers (activPAL) assessed sitting, sitting bouts, standing, stepping, and breaks from sitting. ActiGraph-accelerometers assessed sedentary time (SED), light-intensity physical activity (LIPA, stratified as low- and high-LIPA), and moderate-to-vigorous physical activity (MVPA). Anthropometric measures were objectively assessed at baseline and self-reported at follow-up. Data from 324 and 67 participants were obtained at baseline and follow-up, respectively. Multilevel mixed-effects linear regression models examined changes over time, and associations between baseline values and BMI and WC at follow-up. There were significant increases in BMI (0.6 kg/m2) and durations of prolonged sitting (26.4 min/day) and SED (52 min/day), and significant decreases in stepping (−19 min/day), LIPA (−33 min/day), low-LIPA (−26 min/day), high-LIPA (−6.3 min/day), MVPA (−19 min/day), and the number of breaks/day (−8). High baseline sitting time was associated (p = 0.086) with higher BMI at follow-up. There were no significant associations between baseline sitting, prolonged sitting, LIPA, or MVPA with WC. Although changes in daily activity patterns were not in a favourable direction, there were no clear associations with BMI or WC. Research with larger s le sizes and more time points is needed.
Publisher: Elsevier BV
Date: 09-2022
Publisher: Springer Science and Business Media LLC
Date: 23-08-2022
DOI: 10.1186/S12889-022-14007-W
Abstract: Managing children’s screen time is challenging for most families. Interventions have had limited success in reducing screen time, potentially due to a lack of understanding of the experiences, needs and recommendations of families. This study aimed to 1) understand the screen time experiences of families, particularly during COVID-19 lockdowns and 2) explore parent and child suggestions for the design, components, and content of a screen time management program. Parents and children from 30 families living in Victoria, Australia completed a semi-structured interview (63 interviews) via Zoom in October–November 2021. Parents were m aged 40.8 (± 8.9) years and predominantly female (90%). Children were m aged 11.4 (± 2.4) years and 47% female. The interviews were audio recorded, transcribed verbatim and analysed using inductive thematic analysis combined with a summative content analysis approach. Three themes under Aim 1 emerged. Theme 1) ‘Screen time management experiences and practices’, including rules and strategies, challenges, and the impact of COVID-19 lockdowns. Theme 2) ‘Impact of screens on family interaction and communication’ including conflicts within the family, reduced face-to-face interactions, and negative impact on child’s behaviour and wellbeing. Theme 3) ‘Benefits of increased screen time due to COVID-19 lockdowns’ including continuation of social interactions, extracurricular activities, improved technology skills and using screens as a ‘babysitter’. Findings from Aim 2 suggest that families want a screen time management program delivered online to parents and children, which includes static and interactive content that incorporates health information, alternative activities, cyber-safety information, tips for goal setting and rewards, screen monitoring tools, links to reputable information, and parent social connections. Reminders via text message or through the online platform would help maintain engagement in the program. Families are experiencing challenges in managing the complex balance between the increased need for screens and the impact it has on the family. These findings provide valuable parent and child insights to assist in developing screen time management programs that are created with an understanding of the needs and challenges of families.
Publisher: MDPI AG
Date: 10-12-2016
Publisher: Informa UK Limited
Date: 20-09-2022
Publisher: Springer Science and Business Media LLC
Date: 08-2022
DOI: 10.1186/S12889-022-13869-4
Abstract: Little is known about girls’ use of a broad range of digital technologies to support a healthy lifestyle, particularly during the later adolescent years when they are expected to take greater responsibility for in idually managing their health and wellbeing. The present study was designed to gain an in-depth understanding of adolescent girls’, 15 to 17 years of age, use of a broad range of digital technologies to support multiple healthy lifestyle purposes. This study used a mixed-methods sequential research design (i.e. quantitative and qualitative data in two consecutive phases). A quantitative online survey was conducted to determine the use of digital technologies for healthy lifestyle purposes. Qualitative semi-structured interviews were conducted with a subset of survey respondents to explore factors influencing their technology use and preferences. Descriptive analysis of survey data (online survey, n = 336) demonstrated the popularity of social media and online video sharing platforms, with evidence that the use of digital technologies does not occur in isolation and girls draw on several resources simultaneously to achieve their desired healthy lifestyle outcomes. Thematic analysis of interview data (semi-structured interviews, n = 29) revealed seven interrelated themes around factors influencing girls’ use of, and satisfaction with, different digital technologies: accessibility, social connectivity, credibility, relatability, inspiration, safety, and customisability. The findings reiterate that one size doesn’t fit all girls, and often one size might not even fit one girl, and thus highlight the challenge of catering to such varied use cases. Overall, it appears that current digital technology offerings meet the needs and preferences of adolescent girls for healthy lifestyle purposes, however there may be benefit in allowing greater customisation of use, and consumer driven tailoring of content, according to personal preferences and changing circumstances.
No related grants have been discovered for Dr Ana María Contardo Ayala.