A Reciprocal Effects Model of Children’s Body Fat Self-Concept: Relations With Physical Self-Concept and Physical Activity

2016 ◽  
Vol 38 (3) ◽  
pp. 255-267 ◽  
Author(s):  
Alex C. Garn ◽  
Alexandre J.S. Morin ◽  
Jeffrey Martin ◽  
Erin Centeio ◽  
Bo Shen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Fat ◽  
Structural Equation ◽  
Weight Status ◽  
Vigorous Physical Activity ◽  
Well Being ◽  
The United States ◽  
Self Concept ◽  
Equation Modeling ◽  
Reciprocal Effects

This study investigated a reciprocal effects model (REM) of children’s body fat self-concept and physical self-concept, and objectively measured school physical activity at different intensities. Grade four students (N = 376; M age = 9.07, SD = .61; 55% boys) from the midwest region of the United States completed measures of physical self-concept and body fat self-concept, and wore accelerometers for three consecutive school days at the beginning and end of one school year. Findings from structural equation modeling analyses did not support reciprocal effects. However, children’s body fat self-concept predicted future physical self-concept and moderate-to-vigorous physical activity (MVPA). Multigroup analyses explored the moderating role of weight status, sex, ethnicity, and sex*ethnicity within the REM. Findings supported invariance, suggesting that the observed relations were generalizable for these children across demographic groups. Links between body fat self-concept and future physical self-concept and MVPA highlight self-enhancing effects that can promote children’s health and well-being.

Evaluating the Construct Validity of Ryff’s Scales of Psychological Well-Being Using Exploratory Structural Equation Modeling

2016 ◽  
Vol 35 (6) ◽  
pp. 633-638 ◽  
Author(s):  
Hsien-Yuan Hsu ◽  
Tze-Li Hsu ◽  
KoFan Lee ◽  
Lori Wolff
Keyword(s):  
Structural Equation Modeling ◽  
Construct Validity ◽  
Structural Equation ◽  
Discriminant Validity ◽  
Well Being ◽  
The United States ◽  
Equation Modeling ◽  
Exploratory Structural Equation Modeling ◽  
Psychological Well Being ◽  
Measurement Models

The purpose of this study was to evaluate the construct validity of Ryff’s Scales of Psychological Well-Being (SPWB) using exploratory structural equation modeling (ESEM). The data were drawn from the national survey of Midlife in the United States conducted during 1994 and 1995. Measurement models assuming different number of factors (1-6 factors) and considering the effect of negatively wording items were specified and compared to determine optimal number of underlying factors. The discriminant validity was assessed following Farrell’s suggestions. The results showed the discriminant validity was questionable due to five indicators with considerable cross-loadings.

scholarly journals Dynamics of sleep, sedentary behavior, and moderate-to-vigorous physical activity on school versus nonschool days

SLEEP ◽  
2020 ◽  
Author(s):  
Bridget Armstrong ◽  
Michael W Beets ◽  
Angela Starrett ◽  
Keith Brazendale ◽  
Gabrielle Turner-McGrievy ◽  
...  
Keyword(s):  
Physical Activity ◽  
Sedentary Behavior ◽  
Time Use ◽  
Structural Equation ◽  
Time Series Data ◽  
Vigorous Physical Activity ◽  
Series Data ◽  
Equation Modeling ◽  
Specific Behavior ◽  
School Day

Abstract Study Objectives Studies examining time-use activity behaviors (sleep, sedentary behavior, and physical activity) on school days compared with nonschool days have examined these behaviors independently, ignoring their interrelated nature, limiting our ability to optimize the health benefits of these behaviors. This study examines the associations of school-day (vs. nonschool day) with time-use activity behaviors. Methods Time series data (6,642 days) from Fitbits (Charge-2) were collected (n = 196, 53% female, 5–10 years). We used a variable-centered dynamic structural equation modeling approach to estimate day-to-day associations of time-use activity behaviors on school days for each child. We then used person-centered cluster analyses to group individuals based on these estimates. Results Within-participant analysis showed that on school days (vs. nonschool days), children (1) slept less (β = −0.17, 95% CI = −0.21, −0.13), (2) were less sedentary (β = −0.05, 95% CI = −0.09, −0.02), and (3) had comparable moderate-to-vigorous physical activity (MVPA; β = −0.05, 95% CI = −0.11, 0.00). Between-participant analysis showed that, on school days, children with higher sleep carryover experienced greater decreases in sleep (β = 0.44, 95% CI = 0.08, 0.71), children with higher body mass index z-score decreased sedentary behavior more (β = −0.41, 95% CI = −0.64, −0.13), and children with lower MVPA increased MVPA more (β = −0.41, 95% CI −0.64, −0.13). Cluster analysis demonstrated four distinct patterns of connections between time-use activity behaviors and school (High Activity, Sleep Resilient, High Sedentary, and Dysregulated Sleep). Conclusions Using a combination of person-centered and more traditional variable-centered approaches, we identified patterns of interrelated behaviors that differed on school, and nonschool days. Findings can inform targeted intervention strategies tailored to children’s specific behavior patterns.

scholarly journals Psychosocial Variables Related to Weight-Related Self-Stigma in Physical Activity among Young Adults across Weight Status

2019 ◽  
Vol 17 (1) ◽  
pp. 64 ◽  
Author(s):  
Xavier C. C. Fung ◽  
Amir H. Pakpour ◽  
Ya-Ke Wu ◽  
Chia-Wei Fan ◽  
Chung-Ying Lin ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adults ◽  
Structural Equation ◽  
Weight Status ◽  
Healthy Lifestyle ◽  
Behavioral Control ◽  
Healthcare Providers ◽  
Model Fit ◽  
Equation Modeling ◽  
Perceived Behavioral Control

A healthy lifestyle with sufficient physical activity (PA) can contribute to weight management. Yet, many people do not maintain a healthy lifestyle. To explain PA, we propose a model that incorporates the Theory of Planned Behavior (TPB) with weight-related self-stigma. We recruited 325 young adults to complete questionnaires regarding their physical activities, weight-related self-stigma, and TPB factors. We used structural equation modeling to examine the model fit and the path invariance across weight groups. The model showed excellent model fit, but path invariance was not supported. Weight-related self-stigma significantly explained the perceived behavioral control, behavioral intention, and engagement of PA. People without overweight and people with overweight have different considerations for PA. Weight-related self-stigma is important for PA as well. To promote a healthy lifestyle, healthcare providers should provide different suggestions or interventions that suit their patients’ weight-related concerns.

scholarly journals Influences of Social Support, Perceived Barriers, and Negative Meanings of Physical Activity on Physical Activity in Middle School Students

2011 ◽  
Vol 8 (2) ◽  
pp. 210-219 ◽  
Author(s):  
Ya-Wen Hsu ◽  
Chih-Ping Chou ◽  
Selena T. Nguyen-Rodriguez ◽  
Arianna D. McClain ◽  
Britni R. Belcher ◽  
...  
Keyword(s):  
Physical Activity ◽  
Social Support ◽  
Los Angeles ◽  
Structural Equation ◽  
Vigorous Physical Activity ◽  
Perceived Barriers ◽  
Equation Modeling ◽  
Future Research ◽  
School Students ◽  
Family Social Support

Background:A profound decline in physical activity occurs in puberty. This phenomenon is not well understood. Therefore, the purpose of this study is to examine associations between family/friend social support for physical activity, negative meanings of physical activity (NMPA), and internal /external barriers to physical activity with moderate to vigorous physical activity (MVPA), and sedentary and light behavior (SLB) in youth.Methods:A total of 350 participants from 7 Los Angeles County middle schools participated in the study (62% Latina, 79% females). Hypothesized pathways were examined using structural equation modeling. Psychosocial variables and participation in MVPA and SLB were assessed by self-reported questionnaires.Results:NMPA were related to lower levels of family/friend social support and greater internal/external barriers. Family social support was the only significant indicator of MVPA (β = 0.79). Low family social support was related to higher SLB (β = −0.25).Conclusions:Family social support seems crucial to promote MVPA and reduce SLB in adolescents and might be influenced by child’s feelings about physical activity. Future research should consider the interrelationship between psychosocial correlates of physical activity.

Police Body-Worn Cameras: Effects on Officers’ Burnout and Perceived Organizational Support

2018 ◽  
Vol 22 (1) ◽  
pp. 5-30 ◽  
Author(s):  
Ian Adams ◽  
Sharon Mastracci
Keyword(s):  
Organizational Support ◽  
Police Officers ◽  
Structural Equation ◽  
Performance Monitoring ◽  
Perceived Organizational Support ◽  
Well Being ◽  
The United States ◽  
Equation Modeling ◽  
Negative Effects ◽  
Using Data

Police departments in the United States are rapidly adopting body-worn cameras (BWCs). To date, no study has investigated the effects of BWCs on police officers themselves, despite evidence suggesting negative effects of electronic performance monitoring on employee well-being. Police officers already experience higher levels of burnout than other professions. We hypothesize that the intense surveillance of BWCs will manifest in how police officers perceive the organizational support of their departments and will increase burnout. We test these hypotheses using data from patrol officers ( n = 271) and structural equation modeling. We find BWCs increase police officer burnout, and this effect is statistically different from zero. We also find that BWCs decrease officers’ perceived organizational support, which mediates the relationship between BWCs and burnout. Greater perceived organizational support can blunt the negative effects of BWCs. Our study is the first to situate effects on officers at the center of BWC literature.

scholarly journals Subjective Memory in a National Sample: Predicting Psychological Well-Being

Gerontology ◽  
2017 ◽  
Vol 63 (5) ◽  
pp. 460-468 ◽  
Author(s):  
Jacqueline A. Mogle ◽  
Nikki Hill ◽  
Caroline McDermott
Keyword(s):  
Life Satisfaction ◽  
Structural Equation ◽  
Memory Performance ◽  
Well Being ◽  
The United States ◽  
National Sample ◽  
Equation Modeling ◽  
Valuable Insight ◽  
Subjective Memory ◽  
Psychological Well Being

Background: Individual perception of memory performance (i.e., subjective memory) is assessed using a variety of approaches. This article focuses on 2 such approaches: (1) self-comparison assessments that attempt to capture changes in memory ability over a period of time and (2) age-anchored comparisons that assess how an individual perceives their memory in relation to others their age. These different types of assessment may relate to psychological well-being differently due to the underlying mechanisms of assessment. Objective: The purpose of these analyses is to examine 2 measures of subjective memory (i.e., a self-comparison measure and an age-anchored comparison measure) as predictors of psychological well-being among adults in mid- and late life. Methods: Participants (n = 3,434) in the Midlife in the United States Study completed measures of subjective memory, depressive affect, and life satisfaction. Structural equation modeling was used to examine whether the self-comparison and age-anchored comparison measures had differential predictive utility regarding psychological well-being. Results: Higher age-anchored comparison ratings were related to higher life satisfaction scores. There was a significant interaction between the 2 items such that individuals with lower ratings on both subjective memory measures had the poorest outcomes. Additionally, age-anchored comparisons interacted with age: older adults had the poorest outcomes when they reported poorer age-anchored comparisons. Conclusion: These findings highlight the importance of precise measurement in the consideration of subjective memory. How an individual was asked to rate his or her perception of memory influenced the relationships between subjective memory and psychological well-being. This study contributes valuable insight into the importance of the assessment models of subjective memory.

Direct and Indirect Effects of Social Support on Youth Physical Activity Behavior

2014 ◽  
Vol 26 (1) ◽  
pp. 86-94 ◽  
Author(s):  
Pedro Silva ◽  
Ryan Lott ◽  
Jorge Mota ◽  
Greg Welk
Keyword(s):  
Physical Activity ◽  
Social Support ◽  
High School Students ◽  
Direct Effect ◽  
Self Efficacy ◽  
Structural Equation ◽  
Vigorous Physical Activity ◽  
Equation Modeling ◽  
Activity Promotion ◽  
Youth Physical Activity

Social support (SS) from parents and peers are key reinforcing factors in the Youth Physical Activity Promotion (YPAP) model. This study aims to identify the relative contribution of parental and peer SS on youth participation in moderate to vigorous physical activity (MVPA). Participants included 203 high school students (n = 125 girls; mean age 14.99 ± 1.55 years). MVPA was assessed by accelerometry. SS influences were evaluated using a well-established scale. Structural equation modeling measured (AMOS, Version 19) the relative fit of the YPAP models using both parental and peer SS. Parental SS had significant associations with both predisposing factors, enjoyment (β = .62, p < .01), and self-efficacy (β= .32, p < .01), as well a direct effect on MVPA (β = .30, p < .01). Peer SS had direct effect on MVPA (β = .33, p < .05), also significantly influenced levels of enjoyment (β = .47, p < .01) and self-efficacy (β = .67, p < .01). In both models self-efficacy mediated the influence on MVPA. The direct effects for parents and peers were similar. This demonstrates that both parental and peer social support exert a strong influence on adolescent MVPA.

scholarly journals The Stress-Buffering Effect of Daily Physical Activity on Negative and Positive Affect

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 405-405
Author(s):  
Sun Ah Lee ◽  
Susanna Joo ◽  
Kayeon Lee ◽  
Hye Won Chai ◽  
Hey Jung Jun ◽  
...  
Keyword(s):  
Physical Activity ◽  
Negative Affect ◽  
Positive Affect ◽  
Multilevel Models ◽  
Vigorous Physical Activity ◽  
Well Being ◽  
The United States ◽  
National Study ◽  
Stress Buffering ◽  
Daily Experiences

Abstract Previous studies show that physical activity is beneficial for emotional well-being. This study extends prior research by examining whether engagement in physical activity moderates the association between daily stressor severity and daily emotional well-being. We used data from the second wave of the National Study of Daily Experiences, a sub-project of the Midlife in the United States (MIDUS) study. Respondents (N = 1,851; ages 33 to84) reported their daily experiences across eight consecutive days. Multilevel models explored concurrent and lagged interaction effects between daily stressor severity and physical activity on negative and positive affect and whether these associations differed by age. Physical activity was measured by engagement in vigorous physical activity for at least 30 minutes. Results showed significant interactions between stressor severity and physical activity on same-day negative and positive affect. Specifically, stressor severity was associated with smaller elevation in daily negative affect on physically active days (b = 0.08, p &lt; 0.001) compared to non-active days (b = 0.11, p &lt; 0.001). Reductions in daily positive affect were greater on physically inactive days (b = -0.11, p &lt; 0.001) compared to active days (b = -0.08, p &lt; 0.001). These associations did not differ by age, but additional findings revealed that stressor severity was associated with greater elevation in negative affect among younger respondents (b = 0.12, p &lt; 0.001) than older adults (b = 0.10, p &lt; 0.001). These results highlight the importance of engagement in physical activity for emotional well-being under stressful situations in daily context.

scholarly journals Impact of the Mass Media on Adherence to the Mediterranean Diet, Psychological Well-Being and Physical Activity. Structural Equation Analysis

2021 ◽  
Vol 18 (7) ◽  
pp. 3746
Author(s):  
Rafael Marfil-Carmona ◽  
Manuel Ortega-Caballero ◽  
Félix Zurita-Ortega ◽  
José Luis Ubago-Jiménez ◽  
Gabriel González-Valero ◽  
...  
Keyword(s):  
Physical Activity ◽  
Health Education ◽  
Mass Media ◽  
Physical Health ◽  
Mediterranean Diet ◽  
Structural Equation ◽  
Well Being ◽  
Equation Modeling ◽  
Psychological Well Being ◽  
The Mediterranean

Background: The influence of mass media on emotions, subjective well-being and behaviours in society should be clearly understood. Physical-health education has an important role to play as a preventive tool. The aim of this study was to develop an explanatory model regarding the relationships between mass media, psychological well-being, physical activity, Mediterranean diet and age and to compare the model with multi-group analysis according to gender. Methods: A descriptive, non-experimental, cross-sectional design was used, with 634 participants between 18 and 66 years old (M = 35.18 ± 9.68). Results: Structural equation modeling was found to be satisfactory for all parameters. Results show that mass media have a significant direct influence on well-being, with negative effects on physical activity and adherence to a Mediterranean diet. The model fitted better for males in terms of gender differences, showing a better fit of psychological well-being being associated with higher levels of physical activity and better adherence to the Mediterranean diet. Among women, no relationships were found between mass media pressure and psychological well-being and healthy physical habits, but higher personal satisfaction was associated with better physical activity and better dietary patterns. Conclusions: Thus, the study approaches society to a perspective influenced by mass media and physical-health education, reporting and emphasizing the importance of healthy lifestyles.

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