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1.
Eat Weight Disord ; 27(7): 2595-2604, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35474190

RESUMEN

BACKGROUND: This study aimed to examine the psychometric properties of the Weight Self-Stigma Questionnaire (WSSQ) and Perceived Weight Stigma Scale (PWS) among Malaysian university students. METHODS: University students who were studying in a Malaysia university with a mean age of 24.0 years (n = 380; females 71.6%) were recruited through convenience sampling between 19 August and 30 September 2021. They completed a Google Form consisting of information on sociodemographic background, weight stigma, psychological distress and self-reported body weight and height. Psychometric testing was conducted using the classical test theory (including confirmatory factor analysis) and Rasch models to confirm the two-factor structure of WSSQ and the unidimensional structure of the PWS using the various fit indices. Concurrent validity of the total scores of WSSQ and PWS with psychological distress and body mass index (BMI) was also investigated. Internal consistency using Cronbach's alpha was conducted. RESULTS: The confirmatory factor analyses and Rasch analyses verified the two-factor structure for the WSSQ and the single-factor structure for the PWS. Both the WSSQ and PWS showed good internal consistency and good concurrent validity as demonstrated by their significant correlations with psychological distress and BMI. CONCLUSION: The WSSQ and PWS have strong validity and reliability, and they can both be used to assess weight stigma among Malaysian university students. LEVEL OF EVIDENCE: V: Descriptive study.


Asunto(s)
Prejuicio de Peso , Adulto , Femenino , Humanos , Psicometría , Reproducibilidad de los Resultados , Autoimagen , Estigma Social , Estudiantes/psicología , Encuestas y Cuestionarios , Universidades , Adulto Joven
3.
Nutrients ; 15(16)2023 Aug 08.
Artículo en Inglés | MEDLINE | ID: mdl-37630688

RESUMEN

Non-alcoholic fatty liver disease (NAFLD) is mainly characterized by excessive fat accumulation in the liver. It spans a spectrum of diseases from hepatic steatosis to non-alcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Brassica juncea is rich in glucosinolates and has been proven to possess many potential pharmacological properties, including hypoglycemic, anti-oxidation, anti-inflammatory, and anti-carcinogenic activities. This study aims to investigate whether whole-plant Brassica juncea (WBJ) and its glucosinolates extracts (BGE) have hepatoprotective effects against a high-fat diet (HFD)-induced NAFLD and further explore the mechanism underlying this process in vivo and in vitro. WBJ treatment significantly reduced body fat, dyslipidemia, hepatic steatosis, liver injury, and inflammation; WBJ treatment also reversed the antioxidant enzyme activity to attenuate oxidative stress in HFD-fed rat liver. Moreover, WBJ and BGE enhanced the activation of AMPK to reduce SREBPs, fatty acid synthase, and HMG-CoA reductase but increased the expression of CPT-I and PPARα to improve hepatic steatosis. In addition, WBJ and BGE could ameliorate NAFLD by inhibiting TNF-α and NF-κB. Based on the above results, this study demonstrates that WBJ and BGE ameliorate HFD-induced hepatic steatosis and liver injury. Therefore, these treatments could represent an unprecedented hope toward improved strategies for NAFLD.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Enfermedad del Hígado Graso no Alcohólico , Animales , Ratas , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Enfermedad del Hígado Graso no Alcohólico/etiología , Glucosinolatos/farmacología , Planta de la Mostaza , Dieta Alta en Grasa/efectos adversos , Antioxidantes/farmacología , Extractos Vegetales/farmacología
4.
Heliyon ; 9(3): e14298, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36938463

RESUMEN

Background: During the COVID-19 pandemic, physical inactivity and sedentary behaviors (i.e., longer sitting time and excessive gaming) increased because governments across the globe adopted stringent mitigation strategies such as social distancing and lockdowns to curb the spread of the virus. Excessive gaming was one of the coping mechanisms used to deal with the pressure associated with the pandemic. Moreover, perceived weight stigma (PWS) and weight status became more salient concerns among young adults during the COVID-19 pandemic. The current study sought to investigate the relationship between time spent sitting, excessive gaming, weight status, and PWS of Taiwanese Young adults. Additionally, weight status and PWS were examined as mediators between both sedentary behaviors. Methods: This cross-sectional study involved 600 participants who were recruited through Taiwan universities. All participants completed a demographic questionnaire (including weight and height) and self-report measures including the International Physical Activity Questionnaire short form (IPAQ-SF), the Perceived Weight Stigma Scale (PWSS), and the Internet Gaming Disorder Scale-short form (IGDS9-SF). PROCESS model was performed to test the potential mediation roles of weight status and PWS. Moreover, we categorized participants into two groups based on the sitting-time item in the IPAQ-SF: students whose sitting time was less than 8 h daily, and those more than 8 h daily. Results: The group that had less than 8 h had significantly higher PWS and IGDS9-SF scores than the other group. Sitting time was negatively associated with weight status, PWS, and IGDS9-SF. Additionally, we found a significantly direct effect between time spent sitting and excessive gaming. Both weight status and PWS were significant mediators in the association between time spent sitting and excessive gaming.Conclusions: The present study demonstrated important negative correlates of excessive sedentary behaviors. Prevention efforts should focus on promoting physical activity and providing information to decrease sedentary behavior among university students.

5.
Asian J Psychiatr ; 86: 103638, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37285663

RESUMEN

Currently, six instruments have been developed using the 11th revision of the International Classification of Diseases (ICD-11) criteria for Gaming Disorder (GD). Two of these are the Gaming Disorder Test (GDT) and Gaming Disorder Scale for Adolescents (GADIS-A). The present study validated both the GDT and GADIS-A among a large sample of Chinese emerging adults. Via an online survey, 3381 participants (56.6% females; mean age = 19.56 years) completed the Chinese versions of the GDT, GADIS-A, Internet Gaming Disorder-Short Form (IGDS9-SF), and Bergen Social Media Addiction Scale (BSMAS). Confirmatory factor analysis was used to examine the factor structure of the Chinese GDT and GADIS-A. Pearson correlations were computed to examine the convergent validity (with IGDS9-SF) and divergent validity (with BSMAS) of the Chinese GDT and Chinese GADIS-A. The GDT had a unidimensional structure, which was invariant across sex and disordered gaming severity subgroups. The GADIS-A had a two-factor structure, which was also invariant across gender and gaming severity subgroups. Both the GDT and GADIS-A had significant associations with both IGDS9-SF and with BSMAS. Both the Chinese GDT and GADIS-A are valid instruments to assess GD among emerging adults in mainland China, enabling healthcare providers to adopt these tools in their efforts to prevent and examine GD severity among Chinese youth.


Asunto(s)
Conducta Adictiva , Juegos Recreacionales , Escalas de Valoración Psiquiátrica , Humanos , Adolescente , Psicometría , Masculino , Femenino , Adulto Joven , Adulto , Trastorno de Adicción a Internet , Conducta Adictiva/diagnóstico , China , Lenguaje , Juegos de Video
6.
J Eat Disord ; 11(1): 43, 2023 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-36945011

RESUMEN

BACKGROUND: Worldwide, 60% of people use social media. Excessive and/or addictive use of social media termed "problematic social media use", has been reported to negatively influence psychological and physiological health. Therefore, we proposed an illustrated model to investigate the associations between social media addiction, psychological distress and food addiction among Taiwanese university students. METHODS: A total of 598 participants (mean age = 22.8 years) completed an online survey comprising the Bergen Social Media Addiction Scale (BSMAS) assessing social media addiction, the Depression Anxiety and Stress Scale (DASS-21) assessing psychological distress, and the Yale Food Addiction Scale 2.0 (YFAS 2.0) assessing food addiction. RESULTS: Structural equation modeling showed the significant associations between BSMAS and DASS-21 (standardized coefficient [ß] = 0.45; p < 0.01) and between DASS-21 and YFAS 2.0 (ß = 0.43; p < 0.01). In addition, mediation effect with 100 bootstrapping samples showed the indirect effect of DASS-21 in the association between BSMAS and YFAS 2.0 CONCLUSIONS: The present study details the relationships between social media addiction and psychological distress as well as food addiction. The results suggest the need for interventions aimed at reducing these negative outcomes. Coping strategies for improving self-control or reducing weight-related stigma, such as food consumption monitoring or mindfulness, could be adopted for at-risk individuals to address these problems.


Social media addiction has been found to have psychological and physiological impacts on individuals' health. In order to better understand the role of social media addiction, the present study constructed a model to investigate the potential mechanism of social media addiction in affecting the individuals' food addiction level. The findings showed a clear pathway between social media addiction and food addiction with the involvement of psychological distress. Accordingly, we suggested that individuals with the potential risk of social media addiction should pay attention to their psychological status and food intake. The potential effect of weight-related stigmatization would also need to be considered, strategies such as mindfulness or food consumption monitoring would be beneficial to address the issues.

7.
Psychol Res Behav Manag ; 16: 3821-3836, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37724136

RESUMEN

Introduction: Preventative factors in young people's physical inactivity require further understanding, including related psychosocial factors (eg, body image and weight stigma). The Tendency to Avoid Physical Activity and Sport Scale (TAPAS) is a recently developed instrument to address this issue and the present study examined its psychometric properties among Chinese university students particularly in relation to patterns across sex, physical activity (PA) level, and weight status. Methods: Using a convenience sample of 3142 students (mean age = 19.8 years; 56% female) in mainland China, data were collected using an online survey between August and October 2022. Psychometric instruments including the Weight Bias Internalization Scale, 21-item Depression, Anxiety and Stress Scale, and International Physical Activity Questionnaire Short Form were administered along with the TAPAS to assess convergent and discriminant validity. Multi-group confirmatory factor analysis (CFA) assessed the measurement invariance across specific groups. Results: The unidimensional structure of the scale was confirmed through CFA (CFI=0.995; RMSEA=0.046). All configural, metric and scalar models of invariance indicated that the scale was invariant across sex, PA level, and weight status. Acceptable convergent and discriminant validity for the scale were found. Conclusion: The TAPAS is a suitable instrument to assess body image and weight stigma concerns for avoiding physical activity and sport among Chinese university students.

8.
BMC Psychol ; 11(1): 369, 2023 Nov 04.
Artículo en Inglés | MEDLINE | ID: mdl-37925470

RESUMEN

BACKGROUND: The benefits of physical activity are well-known to prevent multiple long-term health conditions. Physical appearance and weight-related stigma may influence individuals' decision to engage in physical activity and sport. Therefore, the present study examined the psychometric properties of a newly developed instrument, the Tendency to Avoid Physical Activity and Sport Scale (TAPAS), using modern test theory. METHODS: A total of 2319 university students were recruited from mainland China and they completed the TAPAS. Rasch analysis was used to examine the TAPAS' rating scaling functioning, test unidimensionality, item hierarchy, ceiling and floor effects, and differential item functioning (DIF). Moreover, the concurrent validity of the TAPAS was examined using the Weight Self-Stigma Questionnaire (WSSQ), Weight Bias Internalization Scale (WBIS), and body mass index (BMI). RESULTS: Unidimensionality was confirmed except for one item. Items corresponding to attitude toward physical activity were more easily adopted compared to items corresponding to actual behavioral aspects. No ceiling and floor effects were found. No DIF existed in the TAPAS items. The TAPAS was strongly correlated with both the WSSQ and WBIS, but not BMI. CONCLUSION: The study showed that overall, the TAPAS has robust psychometric properties. However, future research needs to address the misfit item and explore the feasibility of applying the TAPAS to other populations including wider ethnic groups, age ranges, and life stages.


Asunto(s)
Pueblos del Este de Asia , Ejercicio Físico , Humanos , Ejercicio Físico/psicología , Psicometría , Calidad de Vida , Reproducibilidad de los Resultados , Encuestas y Cuestionarios
9.
Front Public Health ; 10: 862829, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35425758

RESUMEN

Background: Physical activity (PA) is important for health. However, there is little evidence on how weight stigma, time spent on sedentary activities (including smartphone, social media, online learning), time spent on outdoor activity, and nomophobia associate with PA among Chinese individuals with consideration of gender. The present study examined the aforementioned associations in the COVID-19 pandemic era. Methods: University students (N = 3,135; 1,798 females, 1,337 males) with a mean age of 19.65 years (SD = 2.38) years completed an online survey from November to December, 2021. The online survey assessed weight stigma (using the Perceived Weight Stigma Scale and Weight Bias Internalization Scale), PA (using the International Physical Activity Questionnaire Short Form), time spent on different activities (using self-designed items for time on smartphone, outdoor activity, social media, and online learning), and nomophobia (using the Nomophobia Questionnaire). Parallel mediation models were constructed (dependent variable: PA; mediators: perceived weight stigma, weight-related self-stigma, time spent on smartphone, time spent on outdoor activity, time spent on social media, and time spent online learning; independent variable: nomophobia) and evaluated using Hayes' Process Macro Model 4 (IBM SPSS 20.0). Results: Weight-related self-stigma (ß = -0.06; p = 0.03), time spent on outdoor activity (ß = 0.21; p < 0.001), time spent on social media (ß = 0.07; p = 0.02), time spent on online learning (ß = 0.06; p = 0.03), and nomophobia (ß = -0.07; p = 0.01) were all significant factors explaining the PA among female participants. Perceived weight stigma (ß = -0.07; p = 0.01), time spent on outdoor activity (ß = 0.27; p < 0.001), and time spent on online learning (ß = 0.10; p = 0.002) were all significant factors explaining PA among male participants. Conclusion: Chinese healthcare providers should design programs on weight stigma reduction and outdoor activity improvement to enhance PA among university students.


Asunto(s)
COVID-19 , Prejuicio de Peso , Adulto , COVID-19/epidemiología , Ejercicio Físico , Femenino , Humanos , Masculino , Pandemias , Factores Sexuales , Teléfono Inteligente , Adulto Joven
10.
J Eat Disord ; 10(1): 28, 2022 Feb 22.
Artículo en Inglés | MEDLINE | ID: mdl-35193673

RESUMEN

BACKGROUND: The study aimed to examine the association between perceived weight stigma (PWS), weight status, and eating disturbances. We hypothesized that PWS would partially mediate the association between weight status and eating disturbances among university students. METHODS: The study involved 705 undergraduate students (379 females and 326 males) recruited from Hong Kong and Taiwan Universities (399 Hong Kong; 306 Taiwan participants). Our sample was from one Hong Kong university (located in Kowloon) and five Taiwan universities (three located in Southern Taiwan, one located in Central Taiwan, and one located in North Taiwan). Participants' mean age was 20.27 years (SD = 1.79). All participants completed a demographic information sheet, the Three-Factor Eating Questionnaire-18 (TFEQ-R18), and the PWS questionnaire. PROCESS macro models were used to analyze potential mediations. RESULTS: We found a significantly higher PWS scores in a high weight group for females and males. There was a significant difference between weight status and eating disturbances. Moreover, PWS partially mediated the association between weight status and eating disturbances for both genders. CONCLUSIONS: PWS is associated with weight status and eating disturbances, making it an important target for health improvement among young adults. Further studies are needed to corroborate such associations in participants from other societies and cultures.


Perceived weight stigma, weight status (e.g., low weight, average weight, and high weight) and eating disturbances have been found to have associations between each other. However, such research is needed among Asians, and the present study examined a mediation mechanism among the three factors (i.e., perceived weight stigma, weight status, and eating disturbances). Using data from 705 university students across two regions (Hong Kong and Taiwan), the present study revealed that weight status might be associated with perceived weight stigma, and perceived weight stigma might be associated with eating disturbances. Such findings were consistent across male and female university students. The present study's findings underscore the importance of perceived weight stigma. Reducing perceived weight stigma may be an important strategy in developing health eating behaviors among university students.

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