Development and exploratory cluster-randomised opportunistic trial of a theory-based intervention to enhance physical activity among adolescents

This article reports the development and exploratory testing of a school-based intervention programme designed to enhance levels of physical activity in adolescents. The intervention is based on social cognitive theory (SCT), self-regulation theory (SRT) and planning as evidence-based mediators of physical activity changes. Two classes, paired on socio-economic variables, were selected from each of eight Portuguese schools and randomly assigned to an intervention or control group (N = 291). Primary outcome was ‘moderate to vigorous physical activity’ (International Physical Activity Questionnaire) measured pre and post intervention and at three and nine months follow-up. SCT, SRT and planning variables were secondary outcomes measured pre and post intervention. At post test, participants in the intervention group reported 18 min per week more physical activity (PA), adjusted for pre-intervention, age and sex, than those in the control group (95% confidence interval ?10 to 46; p = 0.249). This difference increased to 33 min (95% CI–4 to 71; p = 0.082) at three months and to 57 min (95% CI 13 to 101, p = 0.008) at nine month follow-up. Moreover, the intervention resulted in changes of some of the theoretical target variables, including outcome expectancies and coping planning. However, no evidence was found for the changes in theoretical moderators to mediate the intervention effects on behaviour. Implications for theory and for future research are discussed.     

From enjoyment to physical activity or from physical activity to enjoyment? Longitudinal associations in parent–child dyads

Abstract

Background: This longitudinal dyadic study used cross-lagged analyses to examine reciprocal patterns of associations between physical activity (PA) enjoyment and moderate-to-vigorous PA (MVPA) among children and their parents.

Methods: At Time 1 (T1) 879 parent–child dyads provided their data. The follow-up (Time 2, T2) took place 7–8-months later. MVPA and PA enjoyment scales were filled out separately by parents and children at T1 and T2.

Findings: Child PA enjoyment (T1) predicted a higher level of child MVPA (T2), parental PA enjoyment (T1) explained a higher level of parental MVPA (T2), and parental MVPA (T1) predicted a higher level of parental PA enjoyment (T2). Furthermore, child PA enjoyment (T1) predicted a higher level of parental PA enjoyment (T2).

Conclusions: Child PA enjoyment was the key variable predicting child and parental outcomes. In particular, it explained child MVPA, but also PA enjoyment among parents.     

Physical activity: the relative associations with cognitive and affective risk beliefs

Abstract

Objective: The role of affectively oriented risk beliefs in explaining health behaviors has not been examined in the context of physical activity or in diverse study populations. We evaluated whether affective risk beliefs account for unique variance in physical activity intentions and behavior above and beyond that accounted for by cognitive risk beliefs.

Design: A cross-sectional survey of socio-demographically diverse US residents (N?=?835; 46.4% no college training; 46.7% minority racial/ethnic ancestry; 42.6% men).

Main outcome measures: Physical activity intentions and behavior.

Results: Hierarchical linear regressions showed that affective risk beliefs accounted for variance in physical activity intentions beyond that predicted by socio-demographics and cognitive risk beliefs (F-change ps<.001). Specifically, intentions were higher among people with higher anticipated regret (ps<.001) and with higher absolute feelings of risk (ps<.05) or worry (ps<.05). There was an indirect relationship between perceived absolute likelihood and intentions through anticipated regret and feelings of risk. Neither cognitive nor affective risk beliefs accounted for variance in physical activity behavior (F-change ps>.05), but unsurprisingly, behavior was positively associated with physical activity intentions (p<.001).

Conclusion: Future interventions could target affective risk beliefs—particularly anticipated regret—to increase intentions, and then add other intervention components to bridge the intention–behavior gap.     

Application of the limited strength model of self-regulation to understanding exercise effort,planning and adherence

The limited strength model posits that self-regulatory strength is a finite, renewable resource that is drained when people attempt to regulate their emotions, thoughts or behaviours. The purpose of this study was to determine whether self-regulatory depletion can explain lapses in exercise effort, planning and adherence. In a lab-based experiment, participants exposed to a self-regulatory depletion manipulation generated lower levels of work during a 10 min bicycling task, and planned to exert less effort during an upcoming exercise bout, compared with control participants. The magnitude of reduction in planned exercise effort predicted exercise adherence over a subsequent 8-week period. Together, these results suggest that self-regulatory depletion can influence exercise effort, planning and decision-making and that the depletion of self-regulatory resources can explain episodes of exercise non-adherence both in the lab and in everyday life.     

Expression and processing of emotions: Relationships with cd4+ levels in 42 hiv-positive asymptomatic individuals

Abstract

Background: The study investigated the relationship between CD4+ levels and two emotion-related measures, one of expressed emotion (Hostility directed Inwards, Hdl) and one of capacity for emotional processing (Referential Activity, RA).

Method42 HIV-1 positive asymptomatic subjects, under AZT treatment, underwent CD4+ assessment immediately after a brief interview. Interviews were recorded, transcribed and analyzed using the Gottschalk-Gleser and Referential Activity scales. Of the Gottschalk-Gleser scales, only Hdl was considered.

ResultsAs hypothesized, the regression of emotion-related scores on CD4 + levels showed a curvilinearrelationship with Hdl scores, and a linearrelationship with RA scores. Subjects with the best immune status therefore showed intermediate levels of expressed emotion and a high capacity for emotional processing.

ConclusionThe findings support the usefulness of working through, rather than releasing emotion. Previous negative findings in the field might be explained by the unjustified assumption of linear relationships between expressed emotion and health.     

Long-term adherence to a physical activity intervention: The role of telephone-assisted vs. self-administered coping plans and strategy use

Objective: This study investigated the role of coping plans and the use of selection, optimisation and compensation (SOC) strategies within an experimental evaluation of a 26-week physical exercise intervention.

Methods: Older women (N?=?86, M _age?=?73.7 years) were randomly assigned to a telephone-assisted or a self-administered coping planning intervention after 6 weeks’ participation in an exercise programme. The number of different coping plans formulated, exercise-specific SOC strategy use and their interaction were used to predict objectively measured long-term adherence to the intervention.

Results: The number of coping plans formulated (β?=?0.28) and goal-pursuit strategies reported (sum score of optimisation and compensation strategies, β?=?0.39) predicted adherence to the exercise programme over 20 weeks. The predictive strength of coping plans increased with decreasing numbers of goal-pursuit strategies (β?=??0.21). Women supported via telephone reported significantly more coping plans than did women in the self-administered coping planning group, F(1,80)?=?9.47, p?=?0.003.

Conclusion: Coping plans have a buffering effect on adherence levels when use of SOC strategies is low. Older women's adherence to physical activities may be improved if they are given direct support in generating coping plans involving strategies of selection, optimisation and compensation.     

Executive Cognitive Function as a Correlate and Predictor of Child Food Intake and Physical Activity

Investigated were relations among executive cognitive function (ECF), food intake, and physical activity in 184, fourth grade children. It was hypothesized that self-reported ECF proficiency would predict greater self-reported fruit/vegetable intake and physical activity, but less “snack food” intake. Structural models demonstrated that ECF was significantly correlated with less concurrent snack food intake and greater concurrent fruit/vegetable intake, but not physical activity. Baseline ECF also significantly predicted greater fruit/vegetable intake and physical activity four months later, but not snack food intake. One implication is to promote ECF as a correlate and predictor of food intake and physical activity in children by providing opportunities for youth to practice newly developing ECF capacities.     

情绪标注对负性情绪的抑制：来自自主神经活动的证据*

在情绪标注的研究中,存在着情绪标注是增强还是抑制负性情绪以及非情绪标注能否抑制负性情绪的争论。研究选择负性情绪面孔和图片为实验材料,以女大学生为被试,采用了16导生理记录仪记录其完成任务时皮电、指温和指脉率上的变化。实验1以负性情绪面孔为材料,采用经典范式试图验证以往研究结果。实验2采用负性情绪图片为材料,探讨了情绪标注和非情绪标注对负性情绪的抑制作用。结果发现：(1)在情绪标注条件下被试的指脉率比情绪匹配条件下的更低;性别标注(即非情绪标注)条件下被试的指脉率与性别匹配条件下的差异不显著;(2)在情绪标注条件下被试的指温比自然或人工标注条件(即非情绪标注)下的更高。研究结果表明,情绪标注可以抑制负性情绪,而非情绪标注则不能抑制负性情绪。     

The Concept of the Subject in the Philosophical Hermeneutics of Hans‐Georg Gadamer

Abstract

Certain critics, e.g. Manfred Frank and Hans‐Herbert Kögler, claim that Hans‐Georg Gadamer’s philosophical hermeneutics reduces the individual subject to a mere instrument of history and tradition, the latter reproducing themselves through the subject. However, Gadamer also emphasizes the active role of the subject in shaping and creating history and tradition. In this article I argue that the critics mistakenly emphasize a one‐sided conception of history. By incorporating both active and passive aspects of the subject, Gadamer’s philosophical hermeneutics provides the means by which the individual may be conceived more aptly in an interdependent, dialectical relation to their corresponding historical, cultural, and social context.     

Employee well-being: A multilevel model linking work and nonwork domains

In this article, we review recent methodological developments that have enabled conceptual advances addressing intraindividual processes leading to psychological well-being. We contend that the introduction of dynamic assessment methodologies for sampling experiences, feelings, and behaviours on and off the job, together with the implementation of multilevel modelling strategies in organizational research on well-being, should lead to the development of richer models of employee well-being (compared to existing theoretical models). Accordingly, we develop a model of employee well-being that considers both personal and situational predictors, and both work and nonwork well-being indicators, as well as the real-time relationships between well-being antecedents and indicators across these two life spheres.