Πέμπτη 2 Νοεμβρίου 2017

IJERPH, Vol. 14, Pages 1335: A Cross-Sectional Investigation of the Importance of Park Features for Promoting Regular Physical Activity in Parks

IJERPH, Vol. 14, Pages 1335: A Cross-Sectional Investigation of the Importance of Park Features for Promoting Regular Physical Activity in Parks

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph14111335

Authors: Sarah Costigan Jenny Veitch David Crawford Alison Carver Anna Timperio

Introduction: Parks in the US and Australia are generally underutilised, and park visitors typically engage in low levels of physical activity (PA). Better understanding park features that may encourage visitors to be active is important. This study examined the perceived importance of park features for encouraging park-based PA and examined differences by sex, age, parental-status and participation in PA. Methods: Cross-sectional surveys were completed by local residents (n = 2775) living near two parks (2013/2015). Demographic variables, park visitation and leisure-time PA were self-reported, respondents rated the importance of 20 park features for encouraging park-based PA in the next fortnight. Chi-square tests of independence examined differences in importance of park features for PA among sub-groups of local residents (sex, age, parental-status, PA). Results: Park features ranked most important for park-based PA were: well maintained (96.2%), feel safe (95.4%), relaxing atmosphere (91.2%), easy to get to (91.7%), and shady trees (90.3%). All subgroups ranked ‘well maintained’ as most important. Conclusions: Natural and built environment features of parks are important for promoting adults’ park-based PA, and should be considered in park (re)design.



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IJERPH, Vol. 14, Pages 1334: Impact of Distance on Mode of Active Commuting in Chilean Children and Adolescents

IJERPH, Vol. 14, Pages 1334: Impact of Distance on Mode of Active Commuting in Chilean Children and Adolescents

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph14111334

Authors: Fernando Rodríguez-Rodríguez Carlos Cristi-Montero Carlos Celis-Morales Danica Escobar-Gómez Palma Chillón

Active commuting could contribute to increasing physical activity. The objective of this study was to characterise patterns of active commuting to and from schools in children and adolescents in Chile. A total of 453 Chilean children and adolescents aged between 10 and 18 years were included in this study. Data regarding modes of commuting and commuting distance was collected using a validated questionnaire. Commuting mode was classified as active commuting (walking and/or cycling) or non-active commuting (car, motorcycle and/or bus). Commuting distance expressed in kilometres was categorised into six subgroups (0 to 0.5, 0.6 to 1, 1.1 to 2, 2.1 to 3, 3.1 to 5 and >5 km). Car commuting was the main mode for children (to school 64.9%; from school 51.2%) and adolescents (to school 50.2%; from school 24.7%). Whereas public bus commuting was the main transport used by adolescents to return from school. Only 11.0% and 24.8% of children and adolescents, respectively, walk to school. The proportion of children and adolescents who engage in active commuting was lower in those covering longer distances compared to a short distance. Adolescents walked to and from school more frequently than children. These findings show that non-active commuting was the most common mode of transport and that journey distances may influence commuting modes in children and adolescents.



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Τετάρτη 1 Νοεμβρίου 2017

IJERPH, Vol. 14, Pages 1333: Factors Associated with Male Partner Involvement in Programs for the Prevention of Mother-to-Child Transmission of HIV in Rural South Africa

IJERPH, Vol. 14, Pages 1333: Factors Associated with Male Partner Involvement in Programs for the Prevention of Mother-to-Child Transmission of HIV in Rural South Africa

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph14111333

Authors: Motlagabo G. Matseke Robert A. C. Ruiter Violeta J. Rodriguez Karl Peltzer Geoffrey Setswe Sibusiso Sifunda

Male partner involvement (MPI) can contribute to the success of programs aimed at preventing mother-to-child transmission (PMTCT) of HIV. However, the definition and measures of MPI differ according to context. This study utilized secondary cross-sectional data to investigate the prevalence and determinants of MPI among 463 male partners of HIV-infected pregnant women in rural South Africa. Results indicated that 44.1% of male partners reported involvement in most or all specified male partner involvement activities (i.e., scores of 7 to 9). Descriptive, correlation and multiple linear-regression analyses were conducted. Positive predictors of MPI included relationship status, own HIV status, awareness of female partner’s positive HIV status, female partner’s desire to have more children, having family planning discussions with provider, condom use to prevent HIV and sexually transmitted infections (STIs), and partner reasoning skills. Negative predictors included partner verbal aggression. Overall, although MPI is low, the study underlines important information that could be used to develop interventions aimed at improving maternal and infant health in PMTCT programs in South Africa.



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IJERPH, Vol. 14, Pages 1332: Pricing, Carbon Emission Reduction, Low-Carbon Promotion and Returning Decision in a Closed-Loop Supply Chain under Vertical and Horizontal Cooperation

IJERPH, Vol. 14, Pages 1332: Pricing, Carbon Emission Reduction, Low-Carbon Promotion and Returning Decision in a Closed-Loop Supply Chain under Vertical and Horizontal Cooperation

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph14111332

Authors: Hui Li Chuanxu Wang Meng Shang Wei Ou

In this paper, we examine the influences of vertical and horizontal cooperation models on the optimal decisions and performance of a low-carbon closed-loop supply chain (CLSC) with a manufacturer and two retailers, and study optimal operation in the competitive pricing, competitive the low-carbon promotion, the carbon emission reduction, the used-products collection and the profits. We consider the completely decentralized model, M-R vertical cooperation model, R-R horizontal cooperation model, M-R-R vertical and horizontal cooperation model and completely centralized model, and also identify the optimal decision results and profits. It can be observed from a systematic comparison and numerical analysis that the completely centralized model is best in all optimal decision results among all models. In semi-cooperation, the M-R vertical cooperation model is positive, the R-R horizontal cooperation model is passive, and the positivity of the M-R-R vertical and horizontal cooperation model decreases with competitive intensity increasing in the used-products returning, carbon emissions reduction level, low-carbon promotion effort and the profits of the manufacturer and the entire supply chain.



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IJERPH, Vol. 14, Pages 1330: Research on Storm-Tide Disaster Losses in China Using a New Grey Relational Analysis Model with the Dispersion of Panel Data

IJERPH, Vol. 14, Pages 1330: Research on Storm-Tide Disaster Losses in China Using a New Grey Relational Analysis Model with the Dispersion of Panel Data

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph14111330

Authors: Kedong Yin Ya Zhang Xuemei Li

Owing to the difference of the sequences’ orders and the surface structure in the current panel grey relational models, research results will not be unique. In addition, individual measurement of indicators and objects and the subjectivity of combined weight would significantly weaken the effective information of panel data and reduce the reliability and accuracy of research results. Therefore, we propose the concept and calculation method of dispersion of panel data, establish the grey relational model based on dispersion of panel data (DPGRA), and prove that DPGRA exhibits the effective properties of uniqueness, symmetry, and normality. To demonstrate its applicability, the proposed DPGRA model is used to research on storm-tide disaster losses in China’s coastal areas. Comparing research results of three models, which are DPGRA, Euclidean distance grey relational model, and grey grid relational model, it was shown that DPGRA is more effective, feasible, and stable. It is indicated that DPGRA can entirely utilize the effective information of panel data; what’s more, it can not only handle the non-uniqueness of the grey relational model’s results but also improve the reliability and accuracy of research results. The research results are of great significance for coastal areas to focus on monitoring storm–tide disasters hazards, strengthen the protection measures of natural disasters, and improve the ability of disaster prevention and reduction.



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IJERPH, Vol. 14, Pages 1331: Work–Life Imbalance and Musculoskeletal Disorders among South Korean Workers

IJERPH, Vol. 14, Pages 1331: Work–Life Imbalance and Musculoskeletal Disorders among South Korean Workers

International Journal of Environmental Research and Public Health doi: 10.3390/ijerph14111331

Authors: Young-Mee Kim Sung-il Cho

Employed workers often have family responsibilities such as childcare or homemaking. This dual burden may increase work-related health problems, particularly if there are conflicts between work and family responsibilities. This study assessed whether difficulty in work–life balance is associated with musculoskeletal disorders (MSD) among Korean employees. Data from the population-based Korean Working Conditions Survey of 2011, including 28,640 male and 21,392 female workers, were used. Men and women were analyzed separately to investigate gender differences. MSD were defined as pain in the back, neck, shoulder, or extremities during the past year. Self-assessed difficulty in work–life balance was defined as a work–life conflict (WLC). Adjustments for physical factors, as well as other occupational and socio-demographic variables, were made using multiple logistic regression analysis. Interaction terms including WLCs and key covariates were also incorporated. WLC was significantly associated with increased frequency of MSD in both men (OR: 1.49) and women (OR: 1.50). There were significant interaction effects between WLC and some key covariates (job stress for men and job stress, work hours, physical demand, and frequent overtime work for women). We suggest that having the flexibility to coordinate work and family life is important to prevent MSD among employees.



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Perceptions of health and cancer risk among newly recruited firefighters in South Florida

Purpose

Despite hazardous exposures to cancer-causing agents in the line of duty, the main health and safety concerns of active firefighters have yet to be studied. We compare the perceptions of health and cancer risks between rookie and experienced firefighters.

Methods

Focus groups were used to investigate potential risk of job exposures, and broad-based concerns regarding work and health. An 18-item demographic survey was also administered. Five focus group sessions were conducted with a total of 57 firefighters.

Results

Our findings indicate that both rookie and experienced firefighters have a “high risk, high reward” mindset and identify injury, chronic disease, and stress as main health concerns. Experienced firefighters reported a shift in firefighter culture related to health.

Conclusion

The perception of health and cancer risk of rookie and experienced firefighters differ in the prioritization of their concerns, however both groups equally report occupational cancer risk as their main health concern.



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