The benefits of physical exercise on older adults' cognitive function: A cohort study exploring potential mechanisms.

BACKGROUND: Despite existing studies showing that physical exercise improves cognitive function in older adults either concurrently or in a delayed manner, studies examining these associations simultaneously are rare. Additionally, the underlying mechanisms in these associations remain incompletely understood. OBJECTIVE: This study explores the concurrent and delayed (two years later) associations between physical exercise and older adults' cognitive function. This study also investigates the mediating roles of three negative physical, psychological, and social resources: limitations in daily abilities, depressive mood, and isolation from friends, as well as the moderating roles of cognitive reserve on these associations. DESIGN: A cohort sample of 6646 Chinese older adults (Mean age = 69.28, SD = 7.03) is obtained from the 2016 and 2018 waves of the China Longitudinal Aging Social Survey. Regression analysis was employed to test the concurrent and delayed associations between physical exercise and cognitive function. The bootstrap method was utilized to examine the mediating roles of limitations in daily activities, depression mood, and isolation from friends. Interaction terms were generated to investigate the moderating roles of cognitive reserve. RESULTS: Physical exercise presents concurrent and delayed positive associations with cognitive function. Limitations in daily activities, depressive mood and isolation from friends mediate the above associations. Moreover, cognitive reserve plays a significant role in buffering the concurrent and delayed negative links between depressive mood, isolation from friends, and cognitive function, with larger negative relationships observed for older adults with lower rather than higher levels of cognitive reserve. CONCLUSIONS: This study validates the concurrent and delayed benefits of physical exercise on older adults' cognitive function while elucidating the underlying mechanisms. These findings offer practical implications for health policies and intervention programs aimed at enhancing older adults' cognitive function.

Cyberbullying victimization and perpetration: The influence on cyberostracism and youth anxiety.

Cyberbullying is considered a major threat to adolescent anxiety. In this study, we aim to explore the simultaneous effects of cyberbullying victimization and perpetration on youth anxiety. Building on the childhood adversity model and the vulnerability-stress model, we test the model wherein cyberbullying exposure is linked with cyberostracism, which in turn is expected to be associated with an increase in anxiety. We collected data from 1115 Chinese youth aged 11-19 years based on the stratified random sampling method. Structure equation modelling was conducted in Amos 26.0 to examine the proposed theoretical model. The findings suggested that compared with cyberbullying perpetration, the experience of cyberbullying victimization led to a significantly higher risk of youth anxiety. Multiple mediation analyses revealed that the three dimensions of cyberostracism, namely cyber direct excluded, cyber indirect excluded and cyber ignored, mediated the association of cyberbullying victimization and perpetration with youth anxiety. These results indicate that cyberostracism could be a risk factor for youth anxiety, thus providing new direction regarding intervention programs to reduce anxiety symptoms in adolescents.

Pandemic Stress and Cyberbullying Among Adolescents During China's Outbreak of Omicron: Examining the Roles of Perceived Safety and Family Cohesion.

The COVID-19 pandemic posed risks to the psychosocial development of children and adolescents in the digital age. Under such a background, this study aims to examine the effects of pandemic stress on cyberbullying perpetration and victimization among Chinese adolescents, and to explore the mediator of perceived safety and the moderator of family cohesion underlying this association, during China's outbreak of Omicron. A sample of 822 adolescents was obtained from Taizhou in Zhejiang Province, China, based on a multistage cluster random sampling method. The results showed that pandemic stress was positively associated with cyberbullying perpetration and victimization. Moreover, pandemic stress negatively predicted perceived safety, which in turn, increased the probability of cyberbullying perpetration and victimization. Furthermore, family cohesion moderated the effects of pandemic stress on cyberbullying perpetration and victimization. This study contributes to practical implications for policy making and social work practices regarding how to protect adolescents from cyberbullying during the pandemic.

Exploring the associations between competence in dementia care and work attitudes among formal caregivers in nursing homes.

AIMS: Based on the two-factor model of caregiving appraisals, this study aims to (1) investigate the relationships between competence in dementia care and job satisfaction (work attitudes in positive aspect) and turnover intention (work attitudes in negative aspect) among formal caregivers in nursing homes, and (2) examine the mediating roles of positive aspects of caregiving (caregiving appraisals in positive aspect) and caregiving burden (caregiving appraisals in negative aspect) in the above associations. DESIGN: A cross-sectional design was used. Structural equation modelling was employed to test the proposed model. STROBE checklist guides the reporting of this study. METHODS: Using the multistage cluster sampling method, 407 formal caregivers were selected from 43 nursing homes across 7 districts/counties in China. RESULTS: The proposed model shows a good model fit. Competence in dementia care shows significant positive associations with increased job satisfaction and decreased turnover intention among formal caregivers in nursing homes. Caregiving burden and positive aspects of caregiving mediate the relationships between competence in dementia care and both job satisfaction and turnover intention. Furthermore, the relationship between positive aspects of caregiving and job satisfaction is stronger than that with turnover intention, but the relationship between caregiving burden and turnover intention is not stronger than that with job satisfaction. CONCLUSIONS: The results demonstrate that the two-factor model of caregiving appraisals effectively elucidates the associations and underlying mechanisms between competence in dementia care and formal caregivers' work attitudes. Specifically, two crucial conclusions are drawn: (1) competence in dementia care is associated with higher levels of job satisfaction and lower levels of turnover intention among formal caregivers in nursing homes; (2) caregiving burden and positive aspects of caregiving serve as parallel mediators in these associations. IMPLICATIONS FOR THE PROFESSION AND/OR PATIENT CARE: Policymakers and nursing homes managers should implement a series of measures aimed at formal caregivers in nursing home. Specifically, allocating more resources to enhance the competence in dementia care of formal caregivers is crucial, given its significant association with elevated job satisfaction and reduced turnover intention. Besides, positive and negative caregiving appraisals emerge as proximal factors influencing work attitudes of formal caregivers. Therefore, intervention projects focused on formal caregivers in nursing home should target enhancing positive experiences and alleviating caregiving burden. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

The relationship between bullying victimization and problematic behaviors: A focus on the intrapersonal emotional competence and interpersonal social competence.

BACKGROUND: Evidence consistently demonstrated that bullying victimization was associated with problematic behaviors among adolescents. However, scant attention has been given to simultaneous comparisons of the impacts of two distinct forms of victimization, traditional bullying victimization and cyberbullying victimization. In addition, the mechanisms underlying the relationship between bullying victimization and problem behavior remain inadequately explored. OBJECTIVE: This study aimed to examine the correlation between bullying victimization and problematic behaviors, as well as the mediating roles of intrapersonal emotional competence and interpersonal social competence. PARTICIPANTS AND SETTING: A sample of 26,450 adolescents with a mean age of 15.44 (SD = 0.56) across nine countries was derived from the Study on Social and Emotional Skills (SSES). METHODS: Data analysis was conducted using structural equation modeling, comprising three key components: the measurement model, the structural model, and the bootstrapping analysis for mediating effects. RESULTS: Both traditional bullying and cyberbullying victimization exhibited positive correlations with problematic behaviors, with cyberbullying victimization demonstrating a stronger effect. The mediating effects of intrapersonal emotional competence and interpersonal social competence were observed in the correlation between bullying victimization and problematic behaviors. CONCLUSIONS: This study not only contributed to our comprehension of the underlying mechanisms connecting bullying victimization and adolescent problematic behaviors, but also holds significance for policy development and practice.

Factors mitigate the effect of widowhood's mental health impact: A longitudinal test from individual, familial, and social perspectives.

Although widowhood has been considered a significant risk factor for mental health, the duration of its effects and the potential mitigating factors involved in this relationship remain inadequately understood among Chinese older adults. This study investigates the longitudinal relationship between widowhood and depression and examines the interaction effects of health asymmetry, the number of children, and urban-rural differences from individual, familial, and social perspectives. A sample of 9,563 individuals for the four rounds period (from 2011 to 2018) is obtained from the China Health and Retirement Longitudinal Study. Results demonstrate that (a) the depression associated with widowhood is expected to revert to prewidowhood level after 3 years, (b) the relationship between widowhood and depression is stronger for older adults who are health pessimists compared to those who are health optimists, (c) the relationship between widowhood and depression is stronger for older adults with fewer children compared to those with more children, and (d) the relationship between widowhood and depression is stronger for older adults living in rural areas than those living in urban areas. These findings are essential for policymakers and practitioners working with widowed older adults. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The Long Arm of Childhood Bullying Victimization: Associations with Social Isolation, Gender Differences and Depression in Later Life.

The association between childhood bullying victimization and depression has been well-explored among young adults, but little is known about whether this relationship persists into later life stages, specifically during middle-aged and older phases. Moreover, the intricate mechanisms underpinning this association and the potential existence of gender differences within this context remain inadequately elucidated. To address this gap in knowledge, this study aims to investigate the association between childhood bullying victimization and depression in later life, with a focus on exploring the mediating role of social isolation and the moderating roles of gender. A nationally representative sample of 5,070 individuals (mean age = 61.02, SD = 9.48; male = 55%) was drawn from the China Health and Retirement Longitudinal Study. By employing the bootstrapping analysis method, the mediating role of social isolation was examined, and the moderating role of gender was tested through the generation of interaction items. The results reveal a significant association between childhood bullying victimization and severe depression in later life. Additionally, social isolation plays a mediating role in this association between childhood bullying victimization and social isolation, and the association between social isolation and depression, as well as the relationship between social isolation and depression, are both moderated by gender, presenting stronger effects for female groups than for male groups. However, no moderating role of gender is found in terms of the direct association between childhood bullying victimization and depression. These findings highlight the fact that childhood bullying is not only a problem in the immediate term but also a concern that affects individuals across entire life course. This study has implications for healthcare in proactively investigating, diagnosing, and treating depression by inquiring about childhood bullying victimization experiences. Furthermore, intervention policies that aim to reduce social isolation may be particularly beneficial in mitigating the negative associations, especially for female individuals.