Counter-conditioning as an intervention to modify anti-fat attitudes

This study examined the effect of anti-fat attitude counter-conditioning using positive images of obese individuals participants completed implicit and explicit measures of attitudes towards fatness on three occasions: no intervention; following exposure to positive images of obese members of the general public; and to images of obese celebrities. Contrary to expectations, positive images of obese individuals did not result in more positive attitudes towards fatness as expected and, in some cases, indices of these attitudes worsened. Results suggest that attitudes towards obesity and fatness may be somewhat robust and resistant to change, possibly suggesting a central and not peripheral processing route for their formation

Arrhythmogenic potential of alpha-adrenoceptor stimulation in the rat heart

A recent proposal is that the alpha₁-adrenoceptor may mediate the arrhythmogenic effect of catecholamines during acute myocardial ischaernia. The purpose of this thesis was to explore the role of alpha₁ and alpha₂-adrenoceptor stimulation on vulnerability to ventricular fibrillation in the norrnoxic rat ventricular myocardium and further to evaluate the possible underlying cellular mechanism. The model used was the isolated perfused rat heart (Langendorff technique) in which ventricular fibrillation was electrically induced. The amount of current required to produce ventricular fibrillation was measured as the ventricular fibrillation threshold. Alpha₁-adrenoceptor stirnμlation with methoxamine to 10⁻⁶M to 10⁻⁵M increased the vulnerability to ventricular fibrillation. The arrhythmogenic effect of methoxamine could not be attributed to beta-adrenoceptor stimulation as it occurred in the setting of the beta-adrenoceptor antagonist agent, atenolol; furthermore no accumulation of cyclic AMP, the proposed arrhythmogenic second messenger of beta-adrenoceptor stimulation, occurred. Similarly no alteration in heart rate, coronary flow rate or myocardial high energy phosphate content accompanied the arrhythrnogenic effect of methoxamine. The QT interval increased with alpha₁-adrenoceptor stimulation, this being an indirect index of prolongation of the action potential duration. The arrhythmogenic action of methoxamine was associated with a positive inotropic effect. Prazosin 10⁻⁸M (an alpha₁-adrenoceptor antagonist agent) produced a tenfold displacement to the right of the log concentration response curve of the positive inotropic effect of methoxamine. Prazosin 10⁻⁸M prevented the methoxamine induced fall in ventricular fibrillation threshold. Alpha₂-adrenoceptor stimulation with B-HT 920 and B-HT 933 (azepexole), in the presence of the beta-adrenoceptor antagonist agent atenolol, did not alter the vulnerability to ventricular fibrillation. Alpha₂-adrenoceptor stimulation produced no alteration in heart rate, coronary flow rate or metabolic status. We next explored the possible mechanism underlying the arrhythmogenic effect of methoxamine. Alpha₁-adrenoceptor stimulation enhances transsarcolemmal calcium ion influx and may induce sarcoplasmic reticulum calcium release. To assess the role of transsarcolemmal calcium movement in alpha₁-adrenoceptor mediated effects experiments were undertaken with nisoldipine and low extracellular calcium. To evaluate the role of sarcoplasmic reticulum calcium release, experiments were undertaken with ryanodine (an agent reputed to inhibit sarcoplasmic reticulum calcium release without effecting the slow inward current). Nisoldipine 10⁻⁸M, reducing extracellular calcium (2.5 mM to 1.25 mM) and ryanodine 10⁻⁹M to 10⁻⁸M, prevented the arrhythmogenic and positive inotropic effect of methoxamine. Heart rate, metabolic status and cyclic AMP levels we're unchanged with these procedures. The mechanism underlying the arrhythmogenic action of alpha₁-adrenoceptor stimulation might be an increase in cytosolic calcium concentration. This increase may be secondary to (i) an enhanced transsarcolemmal calcium influx or (ii) an increase in the phasic release of calcium from the sarcoplasmic reticulum

Weight stigma in frequent exercisers: Overt, demeaning and condescending.

The aim of this study was to qualitatively examine weight stigma in individuals who exercise frequently. In total, six focus groups, comprising 30 participants aged 18-25 years, were conducted using convenience sampling. All participants were frequent exercisers. Five themes emerged in the data with participants discussing bullying, the consequences of obesity, causes of obesity, lack of willpower and interventions to reduce obesity. This study is the first qualitative examination of weight stigmatisation in frequent exercisers, where the beliefs reported by focus group participants suggest that frequent exercisers stigmatise, discriminate and dehumanise obese people. Future research to examine the impact of weight stigma on exercise motivation and behaviour of obese people appears warranted

The UEFA Champions League: maintaining the status quo?

Purpose - The purpose of the paper was to examine the competitive balance of the UEFA Champions League group stages. There are numerous financial and commercial benefits to clubs that participate in this competition. The current paper examines if the seeding system operated by UEFA is hindering some lower ranked teams from qualification and thus the associated benefits. Design/Methodology/Approach - Data was collected for all UEFA Champions League group stages between1999/2000 and 2013/2014. Data analysis techniques included Herfindahl-Hirschman Index (HHI) to examine competitive balance and one way ANOVAs to examine the impact of the current seeding system on club performance. Findings - The findings suggest that there are flaws in the ranking and seeding system used by UEFA as results show that the competition is competitively imbalanced at the group stage. Additionally, clubs that are continually placed in the highest seeding pot historically tend to accumulate more points and finish in a higher position in the group thus giving them a better opportunity to progress further in the competition. Research Limitations/Implications - The study has implications for both the clubs competing in the Champions League, who will be affected by the seeding system and UEFA themselves when considering the sporting integrity of their flagship competition. Originality/Value - To our knowledge this is the first paper of its kind to examine competitive balance in this competition and the paper contributes new knowledge that extends the research undertaken in the field previously.</p

Exploring Responses to Body Weight Criticism:Defensive Avoidance When Weight Is Seen as Controllable

In Western society, weight moralization is reflected in the belief that weight is controllable across the weight spectrum. However, the effect of holding such beliefs is unclear. We therefore propose that these beliefs affect people differently depending on their BMI. When confronted with negative, self-related feedback, people’s coping strategies are often reflected in the ways they relate to their self. We examine three such self-to-self relations (i.e., reassured, inadequate, and hated self). Extending prior research, we predict that weight controllability beliefs are related to positive self-to-self relations for adults with a low, and to negative self-to-self relations for adults with a high BMI. Accordingly, we expected that weight controllability beliefs would be associated with defensive avoidance among people with a high, but not with a low BMI. We tested our hypotheses in a sample of 348 adults who participated in an online survey. Weight controllability beliefs were associated with increased defensive avoidance in people with high BMI, and with decreased defensive avoidance in adults with a low BMI. Forms of self-to-self relating fully mediated this association, demonstrating positive effects on adults with a low, and negative effects on adults with a high BMI. Additionally, in an open ending section, we found seven social settings that deprive people from satisfying their need to belong and to be accepted due to their weight. We discuss our findings against a call for a less moralized public discourse about overweight and obesity that is particularly relevant in the context of the current COVID-19 pandemic.publishedVersio

Disparate healthcare experiences of people living with overweight or obesity in England

Background: Ensuring that patients have high quality, equitable experiences in healthcare is a high priority in the UK. As such, identifying and addressing areas where patient experiences are unsatisfactory and inequitable is of high priority, and has been included as part of the National Health Service (NHS) England equity objectives. Methods: The healthcare experiences of people who identified as living with overweight or obesity were gathered from freely available websites using the Patient Experience Platform (PEP). PEP was used to gather and analyse all comments from NHS UK, Google, Facebook and Twitter that related to care experiences of people who identified as living with overweight or obesity across all NHS Acute and Specialist Trusts and all general practitioners (GPs) in England from 01/01/2018 to 31/12/2020. These healthcare experiences were analysed to provide care quality metrics, a comparison of care across regions of England, and to explore associations between behavioural clusters of personality attributes, values and sentiment with care quality metrics. Findings: Perceptions of the quality of care were significantly lower for people who identified as living with overweight or obesity compared to people who didn't identify as living with overweight or obesity across all regions for ‘Effective Treatment’ and ‘Emotional Support’. The perceived quality of care metrics can be predicted by the behavioral clusters, where for instance, the experiences of people who identified as living with overweight or obesity in the negative behavioral cluster have a lower overall perceived quality of care score. Themes arising from the data also highlighted that barriers quality care experienced by people who identified as living with obesity include the speed of access, effective treatment, and emotional support, with stigmatising healthcare experiences are reported. Interpretation: The findings of this study provide insights into the experiences reported via freely available websites, of people who self-identified as living with overweight or obesity in healthcare in England. These insights demonstrate that the perceived quality of care was lower for people who identified as living with overweight or obesity compared to the general population, and that there is regional variation in care quality. The study has also shown that patient experiences differ based on personality attributes, values and sentiment, highlighting the need for patient-centred care and personalised approaches. These findings hold important considerations for healthcare and policy makers aiming to address healthcare inequity. Funding: Novo Nordisk