Weight Discrimination Research Articles

Weight discrimination ability during an action observation task is dependent on the type of muscle contraction

AbstractConcentric and eccentric contractions show different patterns of neural activity at both peripheral and cortical levels, which are thought to influence the perception of action properties such as the weight of objects moved by others. The aim of this study was to investigate how the type of muscle contraction influences weight estimation during action observation.Forty‐eight volunteers completed the Main experiment and the Control experiment. In the Main experiment, they performed a weight discrimination video task in which they watched videos of an actor moving two objects, a comparison, and a reference box, executing concentric or eccentric contractions and they had to indicate which box was the heaviest. Sensitivity analysis and psychometric functions were used to analyse the data. In the Control experiment, observers judged the actor's effort in moving the boxes.The results of the Main experiment showed that the weight discrimination sensitivity was higher in the eccentric condition for the light boxes. Conversely, for the heaviest boxes, discrimination sensitivity was higher in the concentric condition. These results were confirmed by the psychometric function analysis. The control experiment showed that the perceived difference in effort between the comparison and reference stimuli was greater in the eccentric than in the concentric condition for light stimuli.These results showed that the ability to evaluate the weight of the object involved in the observed action was influenced by the type of contraction and the amount of weight. The effort attributed to the actor influenced the observer's perception.

Weight Discrimination as a Predictor of Stress and Eating: The Role of Identifying as "Fat".

Weight discrimination is associated with deleterious health outcomes, including high stress and disordered eating. According to the rejection-identification model, people who perceive such group-based discrimination respond by identifying more strongly with their stigmatized group, which can attenuate negative consequences of discrimination. However, some research shows that these protective benefits may not exist in the weight domain. Here, we examined whether perceived weight discrimination predicts identifying as "fat," and whether that increased identification protects against negative consequences of discrimination for health. In a larger study, U.S. adults who reported considering themselves "to be overweight" (N = 1,725) reported on their perceived weight-based discrimination, fat-group identification, stress, and eating behaviors (i.e., uncontrolled eating, emotional eating, and restrained eating). We tested whether fat-group identification mediated the associations of perceived discrimination to stress and eating. Results showed that perceiving weight discrimination was associated with greater fat-group identification, which in turn was associated with more stress, uncontrolled eating, and emotional eating. These findings suggest that identifying as "fat" in the face of weight discrimination may not reduce subsequent stress or unhealthy eating patterns. As such, in contrast to prior research on the rejection-identification model that suggests identifying with one's group is protective for other identities, "fat" as an identity may not provide the same psychological and physical health benefits.

Experiences of weight discrimination were common in Finnish women with obesity

Abstract Background The consequences of obesity stigma, particularly weight discrimination, are widely felt in different sectors of society. Our aim was to examine the prevalence of experiences of weight discrimination in the Finnish adult population. Methods Data (n = 2,849) consisted of participants aged 20-64 years from the nationally representative Healthy Finland Survey in 2023, pregnant women and people with underweight excluded (body mass index, BMI, ≤18.5 kg/m2). The questionnaire inquired about the experiences of weight discrimination with a question “Have you experienced unfair treatment because of your weight during the last 12 months?”. Information on education (low, middle, high) was inquired too. Height and weight were measured during the health examination, and BMI was calculated (kg/m2). Obesity was defined as BMI ≥ 30 kg/m2. Weighted prevalence was analyzed using logistic regression, considering sampling design and non-response. Results Overall, 13% (95% confidence interval, CI, 11-15) of women and 7% (95% CI 5-8) of men had experienced weight discrimination during the last 12 months. The experiences of weight discrimination varied according to BMI, as the prevalence was 27% (95% CI 22-32) among women with obesity vs. 7% (95% CI 6-9) among women without obesity. The corresponding numbers for men were 16% (95% CI 12-20) vs. 4% (95% CI 2-5). The results were similar across all educational classes. Conclusions Individuals with obesity had experienced weight discrimination more often than those without obesity. The problem affects women (in particular), as almost one third of women with obesity had experienced weight discrimination. It is important to raise awareness and recognize this phenomenon across all sectors of society to enhance inclusion in a world struggling with overweight and obesity. Key messages • People with obesity experience weight discrimination. Experiences of weight discrimination appear to be more common in women than men. • More information and understanding of weight-related stigma through education, research and values work is needed in different sectors of society.

Instilling the perception of weight in augmented reality using minimal haptic feedback

Humans perceive gravitational forces on their surroundings through a mix of visual and sensorimotor cues. The accurate presentation of such cues is a difficult task in Mixed/Augmented Reality (MR/AR), technological paradigms that blend physical and virtual elements to enhance the way we interact with our environment. Realistically perceiving the weight of virtual elements within a MR/AR scenario aids in the embodiment of those elements within the user’s reality, further blurring the lines between what is real and virtual. Unfortunately, current force feedback devices are not designed for or are entirely compatible with MR/AR experiences. To address this need, we explore minimal haptic feedback for weight perception in MR/AR, aiming to simplify the rendering of gravitational cues that are crucial to an immersive experience. Our benchtop device, focused on wrist feedback, showed improved user experience even within an implicit weight feedback task, i.e., a task where weight perception was not required for task completion. However, challenges arose in mixed real-virtual environments, a cornerstone of MR/AR interaction, where weight discrimination was observed to be less accurate. To address this, we developed a compensation scheme for virtual weights, leading to performance on par with a purely virtual environment. Our work demonstrates the viability of minimal haptic feedback in MR/AR applications and highlights the importance of integrating weight perception for increased realism. Our work also fills a research gap in MR/AR development, providing insights for designing future MR/AR systems that integrate with human sensory mechanisms to create virtual interactions that more closely mirror the physical world.

Eight weeks of oral iron supplementation improves postural control in young women with iron deficiency anemia.

This study aimed to explore the effect of 8-week oral supplementation on postural control in young women with iron deficiency anemia (IDA). This study involved 15 women with IDA who received 160 mg of elemental iron daily in the form of dried ferrous sulfate capsules (80 mg twice daily) taken in two divided doses for 8 weeks. The mean velocity of oscillations of the center of pressure (CoPv) was recorded to evaluate postural control pre- and post-supplementation. In addition, simple reaction time (SRT) and weight discrimination tests were performed to assess attentional capacity and proprioceptive acuity, respectively. This study revealed significant increases (P < 0.001, mean difference = 1.83, 95% CI: -17.25; -9.42) in proprioceptive acuity values, as well as decreases in CoPv [firm (EO (P < 0.01, mean difference = 0.52, 95% CI: 0.69; 2.92), EC (P < 0.05, mean difference = 0.75, 95% CI: 0.24; 3.45)) and foam (EO (P < 0.001, mean difference = 0.64, 95% CI: 1.71; 4.44) ; EC (P < 0.001, mean difference = 1.04, 95% CI: 3.51; 7.97))] and SRT (P < 0.001, mean difference = 59.31, 95% CI: 103.02; 168.71) values post-supplementation compared to pre-supplementation. This study showed significant improvements in postural control in young women with IDA after 8 weeks of oral iron supplementation. These improvements were probably related to the enhanced bioavailability of iron, which may have influenced neural processes inducing improvements in attention capacity and proprioceptive acuity.

Weight discrimination and body mass indexes as predictors of body esteem in members of the Bear subculture

Aim of the studyThe Bear subculture is a community of sexual minority men who are distinguished by their preference for muscular or large body build and pronounced body hair in men. Previous studies indicated that Bears experienced weight stigma within and outside the gay community. In this study we focused on body esteem in members of the Bear subculture and explored its associations with anthropological body mass indexes and experiences of weight discrimination.Subject or material and methodsThe study, which included questionnaires and anthropological measurements, involved 64 cisgender sexual minority men from the Polish Bear community. Analyses focused on predictors of body esteem measured with The Body-Esteem Scale, including body mass indexes (e.g., waist circumference) and self-reported exposure to weight discrimination.ResultsEvery three out of four study participants reported exposure to weight stigma in the past. Greater exposure to weight discrimination predicted lower ratings of Physical Attractiveness, Upper Body Strength and Physical Condition. Body mass indexes were significantly and negatively related only to Physical Condition factor.DiscussionOur study confirms previous observations of increased body mass indexes and exposure to weight stigma among Bears. Interestingly, weight discrimination but not body mass indexes consistently and negatively predicted self-assessed body esteem across its all dimensions.ConclusionsMen from the Bear community constitute a population that may be particularly vulnerable to health inequalities due to increased body mass and weight stigma exposure. Health promotion interventions targeting this population should be tailored to Bears’ subcultural norms, support healthier lifestyles and effective coping with stigma as opposed to focus on weight loss.

Prevalence and sociodemographic associations with weight discrimination in early adolescents

ObjectivesTo evaluate the prevalence of weight discrimination (the perception of being treated unfairly based on weight) and its sociodemographic associations among early adolescents aged 10 to 13 in the United States. MethodsWe analyzed cross-sectional data from the Adolescent Brain Cognitive Development (ABCD) Study in Year Two (2018–2020). Multivariable logistic regression analyses were conducted, with perceived weight discrimination as the dependent variable and age, sex, sexual orientation, race and ethnicity, body mass index (BMI) category, household income, and highest parental education level as adjusted independent variables. Interaction with BMI category and weight discrimination by sex, sexual orientation, race and ethnicity, and household income was tested for. ResultsIn our analytical sample (N = 7129), we found that 5.46 % of early adolescents reported experiencing weight discrimination. Adolescents with BMI percentile ≥95th (adjusted odds ratio [AOR], 6.41; 95 % confidence interval [CI], 4.71–8.70), <5th (AOR, 3.85; 95 % CI, 2.10–7.07), and ≥85th to <95th (AOR, 2.22; 95 % CI, 1.51–3.25) had higher odds of experiencing weight discrimination compared to adolescents with BMI percentile 5th to <85th. Sex and race and ethnicity modified the relationship between BMI category and weight discrimination. Adolescents who identified as gay/bisexual (AOR, 3.46; 95 % CI, 2.19–5.45) had higher odds of experiencing weight discrimination compared with heterosexual adolescents. ConclusionsOur results underscore the need for anti-bullying campaigns and positive media representation of all body types. Clinicians should recognize that sexual minority youth disproportionately experience weight discrimination, emphasizing the need for affirmative healthcare and early intervention to prevent the mental health impacts of such discrimination.

Susceptibility assessment of multi-hazards using random forest—back propagation neural network coupling model: a Hangzhou city case study

As the demand for regional geological disaster risk assessments in large cities continues to rise, our study selected Hangzhou, one of China’s megacities, as a model to evaluate the susceptibility to two major geological hazards in the region: ground collapse and ground subsidence. Given that susceptibility assessments for such disasters mainly rely on knowledge-driven models, and data-driven models have significant potential for application, we proposed a high-accuracy Random Forest—Back Propagation Neural Network Coupling Model. By using nine evaluation factors selected based on field surveys and expert recommendations, along with disaster data, the model's predictive results indicate a 3–40% improvement in model performance metrics such as AUC, accuracy, precision, recall, and F1-score, compared to single models and traditional SVM and logistic regression models. Ultimately, using the predictive results of this model, we created susceptibility maps for individual disasters and developed a muti-hazards susceptibility map by employing the expert weight discrimination method and the overlay evaluation method. Furthermore, we discussed the feature importance in the prediction process. Our study validated the feasibility of using advanced machine learning models for urban geological disaster assessment, providing a replicable template for other cities.

Weight in the Workplace: Weight Discrimination Impacts Professional Outcomes as a Function of Social Pain Minimization

AbstractWorkplace weight discrimination is pervasive and harms both individuals and organizations. However, despite its negative effects on employees and employers, the social and psychological processes linking weight discrimination and workplace outcomes remain unclear. Rooted in evidence that people regularly dehumanize and dismiss the emotions of heavier individuals, the current work tests one socioemotional pathway linking workplace weight discrimination and professional outcomes: social pain minimization (SPM). SPM refers to feelings of emotion invalidation when people share negative social experiences with others and feel their hurts are discounted and dismissed by their colleagues. Across two studies using cross-sectional and prospective designs (Ntotal = 661), the current work provides evidence that workplace weight discrimination increased feelings of SPM, which in turn was associated with greater burnout, lower job satisfaction, and more counterproductive work behaviors. In the wake of workplace weight discrimination, subsequent SPM negatively affects workplace outcomes. For those experiencing workplace weight discrimination, mistreatment and invalidation frequently operate as a one-two punch to critical organizational outcomes.

Perceived Weight Discrimination and General Coping Strategies.

Perceived weight discrimination is associated consistently with worse health outcomes. Coping strategies may be one mechanism of this association. The present research examined the association between perceived weight discrimination and strategies used to cope with general stress (not weight-specific) and whether these strategies accounted for part of the association with markers of health. Participants (N = 1882) completed a cross-sectional survey with a comprehensive measure of coping strategies and reported on their perceived experience of weight discrimination and markers of physical, mental, and social health. Perceived weight discrimination was associated with greater use of disengaged coping strategies (β = .19, p < .01) and was unrelated to active and support coping strategies. Disengaged coping mediated the association between weight discrimination and worse physical, mental, and social health (proportion of mediation ranged from 14 to 47%). This pathway was independent of body mass index (BMI). Individuals in the obesity weight category (BMI ≥ 30kg/m2) were less likely to use active (β = - .11, p < .01) and support (β = - .09, p < .01) coping strategies, which did not consistently mediate the association with health. Perceived experiences of weight discrimination are associated with disengaged coping strategies to manage stressful experiences, and these strategies are one mechanism that may contribute to the worse health associated with unfair treatment due to weight.

Associations Between Weight Discrimination, Eating-Disorder-Related Psychiatric Impairment, and Eating-Disorder Treatment Interest Across the Weight Spectrum.

Only approximately 20% of college students with an eating disorder (ED) seek treatment. One barrier to seeking treatment is weight discrimination. Past research demonstrates that experiencing weight discrimination is associated with increased ED risk and decreased in-person treatment engagement. Weight discrimination may be a particularly relevant treatment barrier for students who have a higher body weight given their higher likelihood of experiencing weight discrimination. College students with a probable ED diagnosis (N = 372; Mage = 23.94; 73.12% women, 18.55% men, 6.18% another gender; 11.29% Asian, 4.57% Black, 12.63% Hispanic, 83.60% White, 4.84% Native American, and 0.54% another race) completed an online self-report survey that included the Clinical Impairment Assessment (CIA), Experience of Weight Discrimination (EWD) Scale, and a 0-100 scale to indicate interest in participating in virtual guided self-help ED treatment. Linear regression showed significant positive relationships between weight discrimination and ED-related psychiatric impairment and treatment interest. Elevations in CIA scores corroborate past literature that suggested that weight discrimination was positively related to ED psychopathology. Contrary to past research, college students who experienced weight discrimination had greater treatment interest. Students who experience weight discrimination may view virtual self-guided treatment as less weight-stigmatizing due to the "do-it-yourself" approach and no in-person interactions. Findings highlight the potential impacts of weight discrimination on acceptability of ED-related care. Future research is needed to identify ways to reduce weight discrimination and promote weight-inclusive practices in the medical system.

Attitudes, weight stigma and misperceptions of weight loss strategies among patients living with obesity in the Lazio Region, Italy.

Patient engagement is essential to achieve long-term goals in obesity management. It is crucial to identify patients' perspectives, misperceptions and unmet educational needs on obesity etiology and treatments, to establish a correct therapeutic alliance between healthcare providers and patients. Objective: This study, promoted by the regional section of the Italian Obesity Society (SIO Lazio), explores attitudes towards obesity, self-awareness, misperceptions of weight loss strategies, experiences of weight stigma and educational needs of patients living with overweight or obesity. Design and subject: We conducted an anonymous survey among patients who accessed an Obesity Management Centers across the Lazio region of Italy for the first time, from October 2023 to April 2024. Approach: The survey consisted of 27 closed-ended questions grouped into 4 sections: (1) sociodemographic factors and self-reported anthropometric measures; (2) self-awareness and attitudes towards obesity and weight loss strategies; (3) experiences of obesity-related stigma; (4) knowledge and perceptions of obesity treatment options. A total of 300 patients (67.9% women, aged 49.1 ± 14.4 years) returned completed surveys. Despite the self-reported BMI 35.3 ± 7.0 kg/m2 with three out of four (75.3%) of participants having a BMI ≥ 30 kg/m2, only 49% correctly identified themselves as affected by obesity. Almost one-third of the patients believed that obesity does not imply a genetic predisposition (31.9%) and that it is always secondary to psychological or behavioral disorders (29.7%). Interestingly, 66.7% of the patients declared themselves as completely responsible for their own condition and 39.4% considered obesity always treatable by means of lifestyle interventions. Stigma and weight discrimination in healthcare settings were reported by a substantial portion of patients (31.9%). A perception of inadequate support from the National Healthcare System emerged in most of the interviews (61.9%). Most patients (72.1%) felt they were not sufficiently informed about anti-obesity medications and a relevant part of their knowledge was derived from healthcare providers (57.7%) and social networks (19.1%). Weight loss medications were considered useful (63.2%) or necessary (18.4%) by the majority of patients, but only 60.1% would accept without any hesitation a pharmacologic treatment. The main reasons for refusal of pharmacological treatments were the belief that lifestyle intervention is a sufficient treatment (46.9%), the fear of adverse effects (28.1%) and feeling defeated (12.5%). Similarly, for most of participants bariatric surgery is useful (73.3%) or necessary (13.6%). Despite advancements in obesity research, this study underscores the need to improve patient education and public awareness to optimize the management and treatment of obesity. Addressing misconceptions, stigma, and gaps in knowledge are critical steps towards improving patient outcomes and fostering a supportive healthcare environment.

A multichannel investigation of proprioceptive accuracy

Proprioceptive accuracy (PAc), i.e., the acuity of perception of the state of different parts of the motor system, shows substantial intraindividual differences, and is often considered a general ability. However, it is questionable whether there is an association between accuracies measured with different tests at different body sites. PAc with respect to both knee and elbow joints (joint position reproduction) and the flexors of the upper arms (weight discrimination) was measured in 87 young healthy individuals with regular physical activity across multiple indices. Expected and perceived performance was also assessed for each behavioral task. Frequentist and Bayesian analysis largely supported the idea that PAc with respect to various parts of the motor system are unrelated. No dominant-subdominant differences for actual performance were found; however, PAc for the dominant and subdominant limb were associated in many cases. Finally, perceived performance was related to expected but not to actual performance for all three proprioceptive modalities. In conclusion, actual accuracy of perception of the actual state of a part (i.e., joint, muscle) of the motor system cannot be generalized to other parts. Perceived accuracy, dominantly shaped by expectations, is independent from actual accuracy.

Sociodemographic predictors of perceived weight discrimination.

Perceived weight discrimination is associated with increased risk for chronic diseases and reduced life expectancy. Nevertheless, little is known about perceived weight discrimination in racial, ethnic, and sexual minority groups or in individuals at the intersections of those groups. The goal of this study was to identify sociodemographic predictors of perceived weight discrimination. A diverse sample of adults (37% Black/African American, 36% Latino, 29% sexual minority) with a body mass index (BMI) ≥ 18.5 kg/m2 were recruited from a national US panel to complete an online survey (N = 2454). Perceived weight discrimination was assessed with the Stigmatizing Situations Survey-Brief (SSI-B). Using hierarchical linear regression analysis, SSI-B scores were predicted from the four sociodemographic characteristics of interest (gender, race, ethnicity, and sexual orientation) while controlling for BMI, age, education, and income (Step 1). At Step 2, all two-way interactions between the four sociodemographic characteristics were added to the model. At Step 1, higher SSI-B scores were observed for Latino (vs. non-Latino) adults, sexual minority (vs. heterosexual) adults, younger (vs. older) adults, adults with higher (vs. lower) levels of education, and adults with higher (vs. lower) BMI. At Step 2, race interacted with gender, ethnicity, and sexual orientation to predict SSI-B scores such that relatively higher scores were observed for non-Black women, Black men, adults who identified as Black and Latino, and non-Black sexual minority adults. Perceived weight discrimination varied across sociodemographic groups, with some subgroups reporting relatively high frequency. Black race appeared to be protective for some subgroups (e.g., Black women), but risk-enhancing for others (e.g., Black men, individuals who identified as Black and Latino). Additional research is needed to identify specific factors that cause certain sociodemographic groups -and indeed, certain individuals-to perceive higher levels of weight discrimination than others.

Multiple marginalization, discrimination, and disordered eating among youth aged 10-11.

Although rates of weight discrimination are on-par with racial, ethnic, and gender discrimination, comparatively less work has examined impacts of weight-based discrimination in youth, including on disordered eating. Knowing whether experiences of weight-based discrimination, including in youth with multiply-marginalized identities, are associated with disordered eating could identify vulnerable youth and inform intervention efforts. Youth (N = 11,875) ages 10-11 were recruited through the Adolescent Brain Cognitive Development (ABCD) study. Logistic regressions using cross-sectional data examined discrimination experiences (weight, perceived sexual orientation, race/ethnicity, national origin) and disordered eating (binge-eating, vomiting, weight-gain fear, weight self-worth). Models included race/ethnicity, age, sex, parental income, and degree of elevated weight. Raked poststratification weights were used. Rates of weight-based discrimination (6.2%) were similar to rates of race/ethnicity (4.4%) and sexual orientation discrimination (4.5%). Weight-based discrimination was associated with more disordered eating. Youth reporting multiple experiences of discrimination had significantly increased disordered eating compared to youth who did not report discrimination. Weight-based discrimination is common in youth and associated with disordered eating. Youth with elevated weight are more likely to be multiply marginalized and experience disordered eating. These findings suggest discrimination, including weight-based discrimination, is a critical intervention target to prevent and treat eating disorders. Experiences of discrimination contribute to poorer health; however, weight-based discrimination is relatively understudied. Data from a large sample of youth ages 10-11 showed that youth with elevated weight reported experiencing multiple types of discrimination, and multiply-marginalized youth had increased odds of disordered eating with each additional type of discrimination. Together, this suggests that weight-based discrimination is a critical target to prevent and treat eating disorders, especially in multiply-marginalized youth.

The economic and social costs of body dissatisfaction and appearance-based discrimination in the United States

ABSTRACT This study estimated the social and economic costs of body dissatisfaction and appearance-based discrimination (specifically, weight and skin-shade discrimination) in the United States (USA) in the 2019 calendar year. We used a prevalence-based approach and a cost-of-illness method to estimate the annual cost of harmful appearance ideals for cases of body dissatisfaction and discrimination based on weight and skin shade. Impacts on conditions/illnesses such as eating disorders that are attributable to body dissatisfaction, weight discrimination and skin-shade discrimination were identified through a quasi-systematic literature review, which captured financial, economic, and non-financial costs. For each impact attributable to body dissatisfaction or appearance-based discrimination, annual health system and productivity costs (or labor market costs) were primarily estimated by using a population attributable fraction methodology. Only direct costs that resulted from body dissatisfaction and appearance-based discrimination were included (for example, costs associated with conditions such as depression attributable to body dissatisfaction or appearance-based discrimination). In contrast, indirect costs (e.g. costs associated with a health condition developed following skin bleaching, which was undertaken as a result of body dissatisfaction) were not included. In 2019 body dissatisfaction incurred $84 billion in financial and economic costs and $221 billion through reduced well-being. Financial costs of weight discrimination and skin-shade discrimination were estimated to be $200 billion and $63 billion, respectively, and reduced well-being was estimated to be $206.7 billion due to weight discrimination and $8.4 billion due to skin-shade discrimination. Sensitivity testing revealed the costs likely range between $226 billion and $507 billion for body dissatisfaction, between $175 billion and $537 billion for skin-shade discrimination, and between $126 billion and $265 billion for weight discrimination. This study demonstrates that the prevalence and economic costs of body dissatisfaction and weight and skin-shade discrimination are substantial, which underscores the urgency of identifying policy actions designed to promote prevention.

Relationship Between Postural Stability and Proprioception, Pain, Quadriceps Strength, and Muscle Tightness in Athletes With Patellar Tendinopathy.

Athletes with patellar tendinopathy (PT) have postural stability deficits; however, the underlying mechanisms and factors responsible remain unknown. The effect on postural stability in PT of decreased quadriceps strength, altered proprioception, lower-limb muscle tightness, and knee pain, which explain postural stability deficiency in other populations, is uninvestigated. Proprioceptive acuity, muscle tightness, quadriceps strength, and pain predict postural stability in athletes with PT. Cross-sectional comparative study. Level 2. A total of 43 athletes with PT and 43 healthy athletes were enrolled. Static and dynamic postural stability, proprioceptive acuity, muscle tightness, quadriceps strength, and pain were evaluated using a force platform, Y-balance test (YBT), a weight discrimination protocol, a goniometer, an isometric dynamometer, and a valid questionnaire, respectively. Athletes with PT had significantly worse static and dynamic postural stability in the affected limb (AL) compared with the nonaffected limb (NAL) (P < 0.01) and the control group (P < 0.01). Athletes suffering from PT revealed lower quadriceps strength (P < 0.01), proprioceptive acuity (P = 0.02), and higher muscle tightness in the AL compared with the NAL and controls. Quadriceps weakness of the AL and pain in athletes with PT explained the variance of dynamic postural stability impairment. Athletes with PT have postural stability deficiency compared with healthy peers. Our results demonstrate that quadriceps muscle weakness and pain are the factors that explain postural stability impairment. These results can assist clinicians in the design of therapeutic balance rehabilitation programs by acting not only on pain relief but also on quadriceps strengthening through resistance training to avoid subsequent injuries in athletes with PT.

SDCS-CF: Saliency-driven localization and cascade scale estimation for visual tracking

Discriminative correlation filtering (DCF)-based trackers have demonstrated remarkable results in the field of visual tracking. Nevertheless, in most DCF-based trackers: (i) they apply correlation operations across the entire search area features without discriminative weights, rendering them highly susceptible to background interference; and (ii) the fixed aspect ratio scale search strategy is inadequate for accurate scale estimation under irregular scale variations. To overcome these challenges, this study proposes a new correlation filter through saliency-driven localization and cascaded scale estimation (SDCS-CF). Specifically, a U-like network is devised to generate a pixel-wise saliency map. This map is then multiplied element-wise with search area features to accentuate the target attribute, mitigating distractors and increasing localization confidence. Furthermore, a cascaded scale estimation model consisting of three one-dimensional filters is designed to refine the scale estimation process and improving the robustness. Extensive experimental results on three public datasets demonstrate that the proposed SDCS-CF outperforms most DCF-based trackers.

How language shapes anti-fat bias: comparing the effects of disease and fat-rights framing

Being fat is often described as a “disease”—a form of linguistic framing that may exacerbate bias against fat people rather than reduce it as intended. Framing fatness as a matter of equal treatment and respect (“fat rights”) may be more effective for bias reduction. In a preregistered experiment (N = 401), we directly compared the effects of disease and fat-rights framing on attitudes toward fat people. Participants read a news article that affirmed or negated (a) the claim that fatness is a disease and (b) the unacceptability of weight discrimination, and then expressed their attitudes toward fat people. Disease-affirming articles yielded more negative attitudes than disease-negating articles, but only for participants who explicitly recognized that the article influenced their attitudes. For these participants, fat-rights framing also had a significant impact: those who read a disease-affirming article expressed less negative attitudes toward fat people when the article also affirmed rather than negated fat rights. These results show that language can shift public opinion about fatness when people are aware of its persuasive power. Our findings support a social-pragmatic account of linguistic framing and have implications for real-world anti-bias efforts.

Internalized Weight Stigma and Weight Discrimination: Associations with Quality of Life and Psychosocial Impairment in a Sample Living with Food Insecurity.

Research suggests that experiencing weight discrimination is associated with a lower quality of life and poor psychological and physical health. However, much of the existing weight discrimination literature has neglected under-represented groups. Little is known about how the experience of weight discrimination affects quality of life and eating/weight-related psychosocial impairment in those living with food insecurity. The present study investigated the associations of weight discrimination and eating/weight-related psychosocial impairment and quality of life. We examined internalized weight stigma and several psychological indicators as potential mediators. Participants (N = 1085) who were recruited from a local food bank completed a questionnaire assessing food insecurity, weight discrimination, internalized weight stigma, eating disorder pathology, anxiety, depression, eating/weight-related psychosocial impairment, and quality of life. Overall, almost one in four participants reported experiencing weight discrimination. Our serial mediation models indicated that increased experiences of weight discrimination were associated with greater internalized weight stigma and psychopathology, which were in turn associated with lower quality of life and greater eating/weight-related psychosocial impairment. Thus, experiencing weight discrimination may negatively impact quality of life and eating/weight-related psychosocial impairment through its effect on mental health. It is imperative to address the negative effects of the widespread discrimination of people based on their weight.