Effects of audiovisual stimuli on psychological and psychophysiological responses during exercise in adults with obesity

The present experiment sought to further understanding of the effects of personalised audiovisual stimuli on psychological and psychophysiological responses during exercise in adults with obesity. Twenty-four participants (M_age = 28.3, SD = 5.5 years; M_BMI = 32.2, SD = 2.4) engaged in self-paced exercises on a recumbent cycle ergometer and three conditions (sensory stimulation [ST], sensory deprivation [DE], and control [CO]) were administered. Perceptual (attentional focus and perceived exertion), affective (affective state and perceived activation), and psychophysiological (heart rate variability) parameters were monitored throughout the exercise bouts. A one-way repeated measures analysis of variance was used to compare self-reported and psychophysiological variables (main and interaction effects [5 Timepoints × 3 Conditions]). The results indicate that ST increased the use of dissociative thoughts throughout the exercise session (η_p² = .19), ameliorated fatigue-related symptoms (η_p² = .15) and elicited more positive affective responses (η_p² = .12) than CO and DE. Accordingly, personally-compiled videos are highly effective in ameliorating exertional responses and enhancing affective valence during self-paced exercise in adults with obesity. Audiovisual stimuli could be used during the most critical periods of the exercise regimen (e.g., first training sessions) when individuals with obesity are more likely to focus on fatigue-related sensations.     

Affective response to gambling promotions during televised sport: A qualitative analysis

Gambling promotions extensively punctuate contemporary televised sport broadcasts and concerns have been raised about their potential impacts on vulnerable groups. Research suggests advertising can shape individuals’ emotions, or affect, towards a product/brand and can subsequently influence purchasing decisions. Consequently, understanding how promotion of gambling influences sport viewers is an important although sparsely addressed area of research. This paper presents exploratory research on affective responses towards gambling promotions displayed during televised sport. Eight online focus groups were conducted with a sample of regular sports viewers in Queensland, Australia. Participants were exposed to a variety of gambling promotions used in National Rugby League match telecasts. Utilising adaptive theory, themes reflecting affective responses to each promotional technique were identified. A range of positive and negative affective responses were identified including arousal, joy, anger and worry. A conceptual model representing emergent affective response categories, message delivery techniques and moderating variables is proposed to inform a broader future research agenda examining how gambling promotions during televised sport influence affective response and concomitant gambling intention.     

Readying the head and steadying the heart: a review of cortical and cardiac studies of preparation for action in sport

Expert sport stars reliably execute their skills with remarkable precision and accuracy. To provide an insight into the mechanisms that underpin the superior performance of experts compared to novices, this article critically reviews experiments that have examined cortical activity (i.e., movement related cortical potentials; EEG spectral power) and cardiac activity (i.e., dynamic changes in heart rate) during preparation for action in self-paced aiming sports. It suggests that decelerations in heart rate and task-specific changes in EEG activity during preparation for action can explain superior expert performance. These psychophysiological responses are interpreted in terms of preparatory information processing and response programming, before suggestions for future research into the psychophysiology of preparation for action are outlined.     

Sport activities in daily routine

During the last few years, research interest on interindividual differences in acute affective reactions on sport activities has increased. Moreover, current studies show that besides interindividual differences, substantial intraindividual variations exist. Therefore, we assume that the potential of regulating affective well-being through sport activities varies situationally. This ambulatory assessment study analyzes affective reactions on sport activities in daily routine to identify possible factors for situational variability of changes in affective well-being. First, situational differences in affective well-being (valence, calmness, energetic arousal), goals for sport activities (e.g., regulation of body weight, activation), and activity characteristics (e.g., activity dose, perceived exertion) were analyzed. Second, associations between these parameters and activity characteristics were dissected. Third, associations with affective well-being after sport activities are identified. For 7 days, 25 women and 21 men (M_age = 32 years) participated. Activity characteristics were captured objectively (accelerometer, electrocardiogramm). Affective well-being, situational goals, and perceived exertion were gathered via smartphone. Multilevel analyses confirmed situational heterogeneity of affective well-being (e.g., intraclass-coefficient ICC_valence = 0.48), situational goals (e.g., ICC_activation = 0.59), and activity characteristics (e.g., ICC_{activity dose} = 0.21). Furthermore, we observed that higher feelings of calmness and stronger situational goals for body weight and activation are followed by a higher activity dose. This higher activity dose comes along with higher energetic arousal after sport activities, whereas higher perceived exertion is followed by lower feelings of calmness. Study results confirm intraindividual variation of affective well-being, specific goals, and activity characteristics. They emphasize the relevance of situational characteristics for the regulation of affective well-being through sport activities.     

锻炼坚持性的国外研究进展

为促进国内锻炼坚持性的研究，使我国更多的民众从锻炼中受益，对国外锻炼坚持性的大量研究予以综述，提出锻炼坚持性的指导方针，并介绍国外在锻炼坚持性领域的未来研究方向。     

Self-regulation and self-control in exercise: the strength-energy model

Self-regulation is an important component of psychosocial theories of exercise behaviour and lack of self-regulatory skills are associated with low adherence to health-related exercise. This review presents a strength-energy model of self-control as an explanation of self-regulation in exercise contexts. The review will provide impetus for original research aimed at understanding exercise behaviour and help develop recommendations for exercise promotion. In the model, self-control is conceptualized as a global but limited resource. Engaging in actions requiring self-control depletes resources leading to self-regulatory failure. Self-control resource depletion is reduced through rest and frequent training on self-control. The expectation of the need to exert self-control in future leads to a conservation of self-control resources. Proposed mechanisms for self-control resource depletion include changes in physiological markers and blood glucose levels. Based on our review, we propose an integrated model of self-regulation incorporating hypotheses from the strength-energy model with those from traditional psychosocial models of exercise behaviour. Recommendations for future research include incorporating hypotheses from the strength-energy model into theories of self-presentation and interpersonal relations in exercise. Practical recommendations aimed at minimising self-control depletion in exercise include the provision of advice on nutrition and recovery, self-control training, and motivational and implementation intention strategies.     

Music in the exercise domain: a review and synthesis (Part I)

Since a 1997 review by Karageorghis and Terry, which highlighted the state of knowledge and methodological weaknesses, the number of studies investigating musical reactivity in relation to exercise has swelled considerably. In this two-part review paper, the development of conceptual approaches and mechanisms underlying the effects of music are explicated (Part I), followed by a critical review and synthesis of empirical work (spread over Parts I and II). Pre-task music has been shown to optimise arousal, facilitate task-relevant imagery and improve performance in simple motoric tasks. During repetitive, endurance-type activities, self-selected, motivational and stimulative music has been shown to enhance affect, reduce ratings of perceived exertion, improve energy efficiency and lead to increased work output. There is evidence to suggest that carefully selected music can promote ergogenic and psychological benefits during high-intensity exercise, although it appears to be ineffective in reducing perceptions of exertion beyond the anaerobic threshold. The effects of music appear to be at their most potent when it is used to accompany self-paced exercise or in externally valid conditions. When selected according to its motivational qualities, the positive impact of music on both psychological state and performance is magnified. Guidelines are provided for future research and exercise practitioners.     

Music in the exercise domain: a review and synthesis (Part I)

Since a 1997 review by Karageorghis and Terry, which highlighted the state of knowledge and methodological weaknesses, the number of studies investigating musical reactivity in relation to exercise has swelled considerably. In this two-part review paper, the development of conceptual approaches and mechanisms underlying the effects of music are explicated (Part I), followed by a critical review and synthesis of empirical work (spread over Parts I and II). Pre-task music has been shown to optimise arousal, facilitate task-relevant imagery and improve performance in simple motoric tasks. During repetitive, endurance-type activities, self-selected, motivational and stimulative music has been shown to enhance affect, reduce ratings of perceived exertion, improve energy efficiency and lead to increased work output. There is evidence to suggest that carefully selected music can promote ergogenic and psychological benefits during high-intensity exercise, although it appears to be ineffective in reducing perceptions of exertion beyond the anaerobic threshold. The effects of music appear to be at their most potent when it is used to accompany self-paced exercise or in externally valid conditions. When selected according to its motivational qualities, the positive impact of music on both psychological state and performance is magnified. Guidelines are provided for future research and exercise practitioners.     

Music in the exercise domain: a review and synthesis (Part II)

Since a 1997 review by Karageorghis and Terry, which highlighted the state of knowledge and methodological weaknesses, the number of studies investigating musical reactivity in relation to exercise has swelled considerably. In this two-part review paper, the development of conceptual approaches and mechanisms underlying the effects of music are explicated (Part I), followed by a critical review and synthesis of empirical work (spread over Parts I and II). Pre-task music has been shown to optimise arousal, facilitate task-relevant imagery and improve performance in simple motoric tasks. During repetitive, endurance-type activities, self-selected, motivational and stimulative music has been shown to enhance affect, reduce ratings of perceived exertion, improve energy efficiency and lead to increased work output. There is evidence to suggest that carefully selected music can promote ergogenic and psychological benefits during high-intensity exercise, although it appears to be ineffective in reducing perceptions of exertion beyond the anaerobic threshold. The effects of music appear to be at their most potent when it is used to accompany self-paced exercise or in externally valid conditions. When selected according to its motivational qualities, the positive impact of music on both psychological state and performance is magnified. Guidelines are provided for future research and exercise practitioners.     

Music in the exercise domain: a review and synthesis (Part II)

Since a 1997 review by Karageorghis and Terry, which highlighted the state of knowledge and methodological weaknesses, the number of studies investigating musical reactivity in relation to exercise has swelled considerably. In this two-part review paper, the development of conceptual approaches and mechanisms underlying the effects of music are explicated (Part I), followed by a critical review and synthesis of empirical work (spread over Parts I and II). Pre-task music has been shown to optimise arousal, facilitate task-relevant imagery and improve performance in simple motoric tasks. During repetitive, endurance-type activities, self-selected, motivational and stimulative music has been shown to enhance affect, reduce ratings of perceived exertion, improve energy efficiency and lead to increased work output. There is evidence to suggest that carefully selected music can promote ergogenic and psychological benefits during high-intensity exercise, although it appears to be ineffective in reducing perceptions of exertion beyond the anaerobic threshold. The effects of music appear to be at their most potent when it is used to accompany self-paced exercise or in externally valid conditions. When selected according to its motivational qualities, the positive impact of music on both psychological state and performance is magnified. Guidelines are provided for future research and exercise practitioners.     

大学生体育锻炼坚持机制的建构——基于心理因素的中介作用

研究充分考虑到个体差异和不同社会环境对锻炼坚持行为的影响,识别了影响体育锻炼坚持的主要心理和行为因素,构建了大学生体育锻炼坚持结构模型,采用问卷调查法和统计分析法对模型进行分析和验证,研究结果显示,体育锻炼承诺对大学生体育锻炼坚持影响重要,学校制度因素对于大学生体育锻炼坚持具有较大效果,大学生退出体育锻炼现象的根本原因就在于体育锻炼意图不强。提出以下建议:大学阶段体育教学的核心任务应致力于使大学生形成参与体育锻炼的心理倾向并养成体育锻炼的行为习惯,大学体育教育的核心在于改善大学生的体育偏好而不是过多的强调影响体育锻炼的外因。     

Assessing Model Fit: Caveats and Recommendations for Confirmatory Factor Analysis and Exploratory Structural Equation Modeling

Despite the limitations of overgeneralizing cutoff values for confirmatory factor analysis (CFA; e.g., Marsh, Hau, & Wen, 2004), they are still often employed as golden rules for assessing factorial validity in sport and exercise psychology. The purpose of this study was to investigate the appropriateness of using the CFA approach with these cutoff values for typical multidimensional measures. Furthermore, we ought to examine how a model could be respecified to achieve acceptable fit and explored whether exploratory structural equation modeling (ESEM) provides a more appropriate assessment of model fit. Six multidimensional measures commonly used in sport and exercise psychology research were examined using CFA and ESEM. Despite demonstrating good validity in previous research, all eight failed to meet the cutoff values proposed by Hu and Bentler. ESEM improved model fit in all measures. In conclusion, we suggest that model misfit in this study demonstrates the problem with interpreting cutoff values rigidly. Furthermore, we recommend ESEM as a preferred approach to examining model fit in multidimensional measures.     

Effects of Different Combinations of Intensity Categories on Self-Reported Exercise

Abstract

Self-reports of exercise are used extensively in behavioral, social psychological, and epidemiological research (Ainsworth, Montoye, & Leon, 1994; Caspersen, 1997). Schwarz (1999) noted that many characteristics strongly influence self-reports of behavior, including question wording, format, and context. Of particular interest in the present study is the possible effect of providing different combinations of intensity categories (i.e., light/mild, moderate, and vigorous/strenuous) on self-reported exercise. A review of the exercise measurement literature indicates that researcher-developed and published questionnaires have varied in the number of exercise intensity categories they present to respondents. For example, researcher-developed questionnaires have often used only one category of exercise intensity, such as moderate (e.g., Miller, Trost, & Brown, 2002; Wallace, Buckworth, Kirby, & Sherman, 2000) or vigorous (e.g., Owen, Sedgwick, & Davies, 1988; Washburn, Goldfield, Smith, & McKinlay, 1990). Conversely, published questionnaires have typically used multiple intensity categories, such as moderate and vigorous/strenuous (e.g., Blair et al., 1985; Heath, Pate, & Pratt, 1993) or light/mild, moderate, and vigorous/strenuous (e.g., Baecke, Burema, & Frijters 1982; Godin & Shephard, 1985; Myers, Bader, Madhavan, & Froelicher, 2001). It is unknown, however, if providing different combinations of exercise intensity categories has any effect on the amount of exercise reported in a given intensity category or in total.     

Towards a conceptual understanding of muscle dysmorphia development and sustainment

In recent years muscle dysmorphia has attracted the interests of sport, exercise, and clinical psychologists, researchers, and the popular media. In this article we review muscle dysmorphia literature and propose a framework to advance knowledge about the condition's development and sustainment. Existing research is focused on social variables correlated with muscle dysmorphia (e.g., social support), and cognitions, emotions, and behaviours displayed by individuals with the condition (e.g., exercise dependence and steroid abuse). The proposed framework draws on the extant body image and body dysmorphic disorder literature to address gaps identified in current muscle dysmorphia knowledge. In particular, little attention has been given to mechanisms by which the condition develops and is sustained, and learning theory is proposed as one possibility. In addition to extending muscle dysmorphia knowledge, the framework is offered as a way to stimulate a range of investigations adding to current understanding. The inclusion of learning theory, for example, may provide insights leading to the identification of suitable treatments for people whose health and well-being has been reduced as a result of experiencing muscle dysmorphia.     

商业性健身俱乐部会员锻炼坚持性的影响因素

研究目的是通过分析会员的运动坚持,以减少商业性健身俱乐部会员流失,促进商业性健身俱乐部的良性发展。依据Scanlan提出的运动承诺模型,综述了影响商业性健身俱乐部会员锻炼坚持性的因素。分析认为健身课程服务、健身教练服务、健身俱乐部员工满足感、健身效果、健身项目、健身会费等因素影响会员运动坚持。     

Creating Community,Assessing Need

This paper describes the preliminary steps needed to begin a community physical activity intervention in a rural context, including forming a community coalition and assessing values, beliefs, and knowledge about physical activity. A random mail survey (N = 171) indicated relatively high activity rates, and perceived barriers consistent with the literature (time, program convenience, safety issues). Perceived benefits included improving/sustaining health and looking better/improving appearance. Five focus groups added additional barriers (e.g., physical isolation, lack of transportation). Residents were unaware of many existing services and indicated a desire for more walking trails, health-related activities, and low-cost exercise facilities. The discussion focuses on the importance of establishing a community coalition and implications for future program development and research.     

Non-targeted metabolomics in sport and exercise science

Metabolomics incorporates the study of metabolites that are produced and released through physiological processes at both the systemic and cellular levels. Biological compounds at the metabolite level are of paramount interest in the sport and exercise sciences, although research in this field has rarely been referred to with the global ‘omics terminology. Commonly studied metabolites in exercise science are notably within cellular pathways for adenosine triphosphate production such as glycolysis (e.g., pyruvate and lactate), β-oxidation of free fatty acids (e.g., palmitate) and ketone bodies (e.g., β-hydroxybutyrate). Non-targeted metabolomic technologies are able to simultaneously analyse the large numbers of metabolites present in human biological samples such as plasma, urine and saliva. These analytical technologies predominately employ nuclear magnetic resonance spectroscopy and chromatography coupled to mass spectrometry. Performing experiments based on non-targeted methods allows for systemic metabolite changes to be analysed and compared to a particular physiological state (e.g., pre-/post-exercise) and provides an opportunity to prospect for metabolite signatures that offer beneficial information for translation into an exercise science context, for both elite performance and public health monitoring. This narrative review provides an introduction to non-targeted metabolomic technologies and discusses current and potential applications in sport and exercise science.     

Exercise and mental health: it's just not psychology!

Exercise has been suggested as an effective adjunctive treatment for a range of mental health conditions. In this study, we explored the perceptions of exercise held by course directors of doctoral training programmes in clinical psychology in England. Given the exploratory nature of the study, we used a qualitative design incorporating semi-structured interviews. Although most participants held favourable attitudes regarding exercise, this was related more to exercise being seen as a positive lifestyle activity that is worth encouraging, rather than exercise being recommended as an adjunctive treatment for mental health problems. Inductive analysis identified four themes that underpinned such a response: inconsistent positions on the evidential criteria used to evaluate the role of exercise, which masked themes regarding the perceived 'simplicity' of exercise interventions, a practical adherence to a mind-body dichotomy, and the incompatibility of exercise with traditional models of understanding and treating clinical conditions. The barriers we have highlighted will continue to hinder the consideration of exercise as a common therapeutic adjunct at present. Although further research is required to examine the relationship between exercise and mental health, consideration must also be given to how such research should be disseminated to mental health professionals.     

Exercise makes people feel better but people are inactive: paradox or artifact?

The exercise psychology literature includes an intriguing, albeit not frequently discussed, paradox by juxtaposing two conclusions: (a) that exercise makes most people feel better and (b) that most people are physically inactive or inadequately active. In this article, we propose that this might be an artifact rather than a paradox. Specifically, we question the generality of the conclusion that exercise makes people feel better by proposing that (a) occasional findings of negative affective changes tend to be discounted, (b) potentially relevant negative affective states are not always measured, (c) examining changes from pre- to postexercise could miss negative changes during exercise, and (d) analyzing changes only at the level of group aggregates might conceal divergent patterns at the level of individuals or subgroups. Data from a study of 12 men participating in a 90-min walk-run protocol designed to simulate the demands of sports games (e.g., soccer) are used to illustrate these points.