Physical fitness and activity levels among Chinese people with schizophrenia: A cross-sectional study with matched case-control comparison

People with schizophrenia have an increased risk of developing cardiometabolic diseases and a reduced life expectancy. Studies conducted mainly in Western settings report low amounts of activity and poor levels of fitness in this population. This study aims to compare physical fitness and activity levels between people with schizophrenia/healthy matched controls and investigate potential associations between these variables. A cross-sectional study was conducted with 57 community-dwelling people with schizophrenia and 57 age-, gender- and BMI-matched controls. Participants completed the International Physical Activity Questionnaire and the YMCA Fitness Assessment Protocol with accompanying cardiovascular/lung function tests. Cardiorespiratory fitness was significantly better in healthy matched controls than individuals with schizophrenia in all areas (all p<.05, d=0.38 to 1.06). Performance in best trunk flexion, half sit-ups and one-minute pulse recovery following the 3-minute step test were significantly worse in the schizophrenia group (all p<.001, d=0.76 to 1.04). Higher levels of weekly moderate activity (t=-2.66, p=.009) and total weekly activity levels (t=-2.013, p=.047) were reported by the healthy controls. Levels of vigorous activity were significantly correlated with some areas of lung functioning in the schizophrenia group (all p<.05). The findings show that Chinese people with schizophrenia have significantly poorer fitness than matched healthy controls, demonstrating the need to provide timely effective exercise-based interventions as a matter of routine to attenuate the risk of developing chronic physical illnesses

In search of scope: A response to Ruiz et al. (2020)

Deliberate and explicit replication attempts are becoming more common across the behavioral sciences. Whilst replicability has been recognized as a core feature of science for decades (if not centuries), the directness of today’s replication work requires us to consider carefully how we communicate our research and how we conceptualize our theories in light of differing findings. This paper uses a concrete example to make a number of suggestions for how we, as a scientific community, ought to engage with replication attempts. Within Relational Frame Theory (RFT) there is a growing body of applied research on the effective use of metaphors to increase tolerance of aversive states. We conducted a replication of an earlier experimental analogue study (2020, this journal) and failed to find the specified effect. Ruiz et al. (2020, also this journal) have recently published a critical response in which they list a number of differences between our two studies which might account for the negative findings. We will use this series of three papers as our exemplum. We also take the opportunity to acknowledge some points of critique provided by Ruiz et al., and to set the record straight with respect to the differences between the original study and our replication attempt. We hope this discussion might help the CBS community to develop a coherent approach to the very current issue of replication

Contextual behavioural coaching: An evidence-based model for supporting behaviour change

As coaching psychology finds its feet, demands for evidence-based approaches are increasing both from inside and outside of the industry. There is an opportunity in the many evidence-based interventions in other areas of applied psychology that are of direct relevance to coaching psychology. However, there may too be risks associated with unprincipled eclecticism. Existing approaches that are gaining popularity in the coaching field such as Dialectic Behavioural Therapy and Mindfulness enjoy close affiliation with Contextual Behavioral Science (CBS). In this article, we provide a brief overview of CBS as a coherent philosophical, scientific, and practice framework for empirically supported coaching work. We review its evidence base, and its direct applicability to coaching by describing CBS’s most explicitly linked intervention – Acceptance and Commitment Therapy/Training (ACT). We highlight key strengths of ACT including: its great flexibility in regard of the kinds of client change it can support; the variety of materials and exercises available; and, the varied modes of delivery through which it has been shown to work. The article lays out guiding principles and provides a brief illustrative case study of Contextual Behavioural Coaching

A review of stress-management interventions for the oncology nursing workforce: what do we know and what should we be doing differently?

Oncology nurses are at risk of chronic stress. In this narrative review we provide an overview of stress-management intervention studies for oncology nurses, and suggest that Acceptance and Commitment Therapy/Training (ACT) provides a better intervention framework due to the relevance of underpinning therapeutic processes (e.g. acceptance, mindfulness, values clarification) to the role and stress-related experiences of this workforce population. Current evidence for stress management intervention effectiveness varies, with few studies describing how theory informs intervention content, or justifying why they should benefit this population specifically. ACT lends itself to data-driven intervention development, thus potentially addressing some methodological limitations in this field. Only one trial has tested ACT in this population, reporting only partial effects. Further empirical research is required given (a) the applicability of ACT for this population and context, and (b) the associated advantages of brief and/or group delivery to address known barriers to participating in stress-management interventions

Survey of ETA prediction methods in public transport networks

The majority of public transport vehicles are fitted with Automatic Vehicle Location (AVL) systems generating a continuous stream of data. The availability of this data has led to a substantial body of literature addressing the development of algorithms to predict Estimated Times of Arrival (ETA). Here research literature reporting the development of ETA prediction systems specific to busses is reviewed to give an overview of the state of the art. Generally, reviews in this area categorise publications according to the type of algorithm used, which does not allow an objective comparison. Therefore this survey will categorise the reviewed publications according to the input data used to develop the algorithm. The review highlighted inconsistencies in reporting standards of the literature. The inconsistencies were found in the varying measurements of accuracy preventing any comparison and the frequent omission of a benchmark algorithm. Furthermore, some publications were lacking in overall quality. Due to these highlighted issues, any objective comparison of prediction accuracies is impossible. The bus ETA research field therefore requires a universal set of standards to ensure the quality of reported algorithms. This could be achieved by using benchmark datasets or algorithms and ensuring the publication of any code developed

Acceptance and values clarification versus cognitive restructuring and relaxation: A randomized controlled trial of ultra-brief non-expert-delivered coaching interventions for social resilience.

Low social resilience (e.g., susceptibility to social anxiety, and social avoidance) has been associated with poor mental and physical health outcomes, and can lead to ostracism. Support services such as university counselling centres, which deal with non-diagnosable psychological distress, linked to low social resilience, require effective yet brief interventions deliverable by non-experts to meet service demands. As it is not always possible to prevent subjectively negative experiences, acceptance-based interventions aim to change how we respond behaviourally to such experiences. The present study tests the efficacy of an ultra-brief (1hr) non-expert delivered acceptance and values-based (AV) coaching intervention to increase resilience to negative social interactions. This was compared to a comparable dose of a cognitive restructuring and relaxation-based (CRR) analogue, and a psycho-education and progressive muscle relaxation-based (PE-PMR) control. Participants ( N =60) were assessed on perceived burdensomeness, belonging, and 3 scenarios measuring anxiety and likelihood to engage in social situations. Participants then played Cyberball, an ostracising task, before recompleting the aforementioned measures. Physiological measures indicated Cyberball was an aversive experience. In the AV condition only, we observed an improved behavioral intention to engage with social scenarios ( dppc2 = .57). Ultra-brief AV-based coaching interventions delivered by non-expert coaches appear promising in increasing participant’s likelihood to continue engaging in social interactions after a stressful social experience. We tentatively conclude that gains in committed action may increase the propensity of at-risk individuals to seek social support

Ultra-brief non-expert-delivered defusion and acceptance exercises for food cravings: A partial replication study

Food cravings are a common barrier to losing weight. This paper presents a randomised comparison of non-expert group-delivered ultra-brief defusion and acceptance interventions against a distraction control. Sixty-three participants were asked to carry a bag of chocolates for a week whilst trying to resist the temptation to eat them. A behavioural rebound measure was administered. Each intervention out-performed control in respect of consumption, but not cravings. These techniques may have a place in the clinical management of food cravings. We provide tentative evidence that the mechanism of action is through decreased reactivity to cravings, not through reduced frequency of cravings