The exercise pill: should we replace exercise with pharmaceutical means?

New physiological and pharmacological research points to the possibility of a pill that produces the complete physiological effects of exercise. Is replacement of exercise with a pill a good idea? And if so, under what circumstances? To explore answers, I have examined three approaches to the understanding exercise. From a dualist point of view, exercise is explained mechanistically in terms of physiological cause and effect relationships. From this perspective, and in particular for reluctant exercisers, there seems to be no strong argument against the use of a pill. From a phenomenological point of view, exercise is understood from a first person perspective focusing on experiential qualities. It is argued that a pill can never replace the embodied, experiential values of exercising and their potential ethical significance. In other words, the use of a pill is rejected. From a critical social constructivist point of view, exercise is understood as an expression of sociocultural values. Exercise can be a source of both bodily alienation and embodied self-realization and meaning. It is argued that in settings of alienating exercise malpractice, an exercise pill can be a temporary lesser evil approach. It is pointed out, however, that the long-term solution to malpractice is not a pill but a change of practice. In a final section, the possibility of the exercise pill is contextualized in the larger, bio-ethical debate on human enhancement.     

Examining attitudes,beliefs, and intentions regarding the use of exercise as punishment in physical education and sport: an application of the theory of reasoned action

Although the use of exercise as punishment appears to be pervasive among physical education teachers and coaches, it has not been systematically examined. The purpose of this study was to examine the experiences, attitudes, intentions, and beliefs of college physical education majors regarding the use of exercise as punishment, using the framework of the theory of reasoned action. Surveys were completed by 345 students enrolled in 35 physical education classes. More than 90% of the study participants reported that their coaches used exercise as punishment, and 43% indicated their physical education teachers used exercise to punish or manage behavior. The constructs of the theory of reasoned action explained nearly 70% of the variance in participants' intentions to use exercise as punishment.     

Understanding physical activity behavior and cognitions in pregnant women: An application of self-determination theory

ObjectivesAlthough regular exercise during pregnancy is linked with improved health outcomes for both mother and foetus, many pregnant women are inactive. The purpose of this study was to use organismic integration theory (OIT) as the guiding theory for examining the relationship between autonomous and controlled motives for (a) exercise behavior reported over a typical week and barriers to exercise and (b) exercise and stage of pregnancy (i.e., trimester).DesignCross-sectional.MethodsParticipants (N = 75) were pregnant women who completed a multi-component, Internet-based survey.ResultsMultiple regression analyses showed that identified regulation predicted greater exercise behavior and fewer exercise barriers, irrespective of trimester. Further analyses indicated that women in the first trimester reported significantly higher identified regulation compared to women in either second or third trimesters.ConclusionsOverall, these findings reinforce the importance of distinguishing controlled from autonomous exercise motives and demonstrate the tenability of OIT for enhancing our understanding of exercise behavior and barriers during pregnancy.     

Behavioral and cognitive correlates of exercise self-schemata

The purpose of this study was to examine the relationship of exercise self-schemata to both cognitive and behavioral concomitants including exercise self-efficacy, attitudes toward fitness, self-perceptions of fitness, and self-report of exercise behavior. Participants were 161 undergraduate students who subsequently were categorized into groups defined by the authors as "exercise schematics," "nonexercise schematics," "aschematics," and unclassified. Results indicated that exercise schematics reported greater total caloric expenditure, higher frequency of exercise behavior in the past as well as future expectations to exercise, greater self-perceptions of physical fitness, and more favorable attitudes toward fitness than either nonexercise schematics or aschematics. Furthermore, exercise schematics expressed higher levels of exercise self-efficacy than did nonexercise schematics. The results clearly support earlier findings concerning exercise self-schemata and exercise behavior and further indicate that schematics also differ from others in important cognitive-motivational determinants of exercise such as self-efficacy and perceptions of physical fitness. Future research should define the role of exercise self-schemata both theoretically and practically in order to enrich our understanding of and facilitate the enhancement of exercise adherence.     

Women who use exercise as a compensatory behavior: How do they differ from those who do not?

ObjectivesThis research examined group differences between women who reported using exercise as a compensatory behavior (ECB; n = 73) and women who did not report using exercise as a compensatory behavior (NECB; n = 133) on alcohol and exercise behavior, drinking and exercise motivation, and several related constructs.DesignA cross-sectional design was used.MethodsUndergraduate women (M age = 19.5 years, SD = 3.01 years) completed self-report measures regarding their alcohol use, alcohol-related problems, exercise behavior, alcohol and exercise motivations, impulsivity, body dissatisfaction, and dietary restraint.ResultsResults indicated that women in the ECB group reported consuming more alcohol, more binge drinking episodes, more alcohol-related problems, higher alcohol and exercise motivations, more exercise, and greater impulsivity, body dissatisfaction, and dietary restraint than women in the NECB group (p's ranging from <.0001 to .017).ConclusionsInterestingly, women who use exercise as a compensatory behavior consumed higher amounts of alcohol, but did not drink more frequently than women who did not use exercise as a compensatory behavior. Women who use exercise as a compensatory behavior also endorse drinking and exercise motives more strongly than women who did not use exercise as a compensatory behavior.     

Perceived exertion during resistance exercise by children

This pilot study examined the validity of a new scale of perceived exertion during acute bouts of resistance exercise in young children. The researchers developed an 11-point numerical scale with five pictures representing youths at various levels of exertion while lifting weights. 26 children (M age 10.1 +/- 1.2 yr.) performed one set of 10 repetitions at 35%, 55%, and 75% of their one-repetition maximum on the chest press and leg press exercises using child-size weight training machines. Scaling procedures for the perceptual anchors on the perceived exertion scale were based on one repetition maximum testing. Children could use this scale to translate into numbers their perceptions of physical exertion during upper and lower body resistance exercise. Perceived exertion distributed as a positive linear function of the percent of one repetition maximum on the chest press and leg press exercises (rs = .70 to .77), and perceived exertion increased significantly across all three exercise intensities on both exercises. These preliminary findings provide partial evidence for validation when this scale was used during resistance exercise with children. Additional validation regarding perceived exertion during resistance exercise with children is warranted.     

Exercise Training for Persons with Alzheimer's Disease and Caregivers: A Review of Dyadic Exercise Interventions

Alzheimer's disease (AD) is the most common form of dementia and the prevalence will increase dramatically in the next decades. Although exercise has shown benefits for people with dementia due to AD as well as their caregivers, the impact of a dyadic exercise intervention including both groups as study participants remains to be determined. The authors review the current clinical evidence for dyadic exercise interventions, which are exercise regimens applied to both the person with dementia and the caregiver. A total of 4 controlled trials were reviewed. This review shows that dyadic exercise interventions are feasible and may produce a positive effect on functional independence and caregiver burden. However, there was insufficient evidence to support a benefit of dyadic exercise intervention on cognitive performance and on behavioral and neuropsychiatric symptoms in participants with dementia due to AD. A dyadic exercise intervention improves functional independence and caregiver burden. However, there is a need for well-designed randomized controlled clinical trials to confirm these benefits and to investigate several important points such as the effects of a dyadic exercise intervention on cognitive and noncognitive outcomes of AD, the optimal intensity of exercise training, and the cost effectiveness of such a program.     

Differentiated ratings of perceived exertion and physiological responses during aerobic dance steps by impact/type of arm movement

Overall ratings of perceived exertion, i.e., undifferentiated RPE, are often used as indicators of exercise intensity during walking, jogging, and cycling; however, conflicting results concerning RPE during aerobic dance exercise have been reported, and the use of differentiated RPE, i.e., local RPE and central RPE, has not been investigated. The purposes of this study were to assess local, central, and over-all RPE, and physiological responses [heart rate (HR); % HRmax; absolute and relative VO2;% VO2 max, ventilation (VE), ventilatory equivalent (VE.VO2(-1); and oxygen pulse] during aerobic dance exercise varied by Arm Movement (Static Arm vs Dynamic Arm) and Impact (High vs Low). Trained women (N = 25; max VO2 = 50.4 +/- 7.5 ml.kg-1.min.-1) completed four aerobic dance steps. No RPE were significantly correlated with heart rate or VO2; however, for all steps all RPE were significantly (r = .40-.62) correlated with VE.VO2(-1) or VE. No interactions were present for RPE or physiological variables, and main effects were noted for Impact and Arm Movement. All RPE were greater for High Impact and for Static Arm Movement. Because VE and VE.VO2(-1) were correlated with Overall RPE for all steps, this may suggest that participants "attended to" perceived changes in respiratory phenomena during aerobic dance exercise. It appears that during combined arm-and-leg aerobic dance exercise the use of Overall RPE is sufficient to assess perceptual sensations associated with the intensity of the exercise. Changes in Overall RPE were proportionate to objective measures of exercise intensity, i.e., HR and VO2; however, it is recommended that both HR and Overall RPE be used to assess fully a participant's objective and subjective responses during aerobic dance exercise.     

AN EXAMINATION OF IMPRESSION MANAGEMENT USE AND EFFECTIVENESS ACROSS ASSESSMENT CENTER EXERCISES: THE ROLE OF COMPETENCY DEMANDS

We report 2 studies that examine how promotional candidates use verbal and nonverbal impression management (IM) tactics across several structured assessment center exercises that differ in the competency demands they place on candidates. Based on the competency-demand hypothesis ( Shoda, Mischel, & Wright, 1993a, 1993b ), it was predicted that IM use would occur most frequently and have the strongest effects on assessor evaluations in exercises that place greater demands on candidates' interpersonal skills than in exercises that depend primarily on technical skills. In both studies, IM tactics were generally used more frequently and there was more variability in IM use for those exercises requiring candidates to display interpersonal competencies (i.e., the role-plays and mock presentation) relative to the exercise that did not (i.e., the tactical exercise). The relationship between IM use and assessor evaluations was also influenced by the competencies assessed by the exercises, and IM use related to both interpersonal and noninterpersonal ratings of performance.     

Effects of chronic exercise on attentional bias among individuals with methamphetamine use disorder

BackgroundIndividuals with substance use disorder show attentional bias toward drug-related cues, which may be associated with attentional control deficits. Although exercise improves attention in healthy people, whether individuals with substance use disorder also benefit is unknown. We explored the effects of chronic exercise on behavioral and neural correlates of attentional bias in men with methamphetamine use disorder.MethodsSixty-one such men were randomized to high- or moderate-intensity exercise or to a control group with little exercise for 12 weeks. The dot-probe task assessed attentional bias before and after exercise intervention, with event-related potentials recorded during the task to determine underlying neural mechanisms.ResultsAttentional bias scores and event-related potential amplitudes significantly decreased after high- or moderate-intensity chronic exercise, but not in controls.ConclusionsChronic exercise reduces attentional bias in individuals with methamphetamine use disorder by enhancing early identification of drug-related stimuli and diverting attention to reduce conflict processing.     

AAASP: A vision for the 1990's

Abstract

The purpose of the article is to emphasize why social-psychological be practical for both theory and practice. As investigators attempt to which theories are most parsimonious, there is often encouragement to pit against each other rather than also examining their similarities and their mentary nature. The former strategy may lead to fragmentation of illustrate the benefit of the latter strategy, the theories of selfe5cacy, action, and planned behavior are discussed relative to practical good theories and their conceptual and measurement similarities. This is extended intojoint use considerations for planning practical signed to impact on health and exercise behavior. It is suggested that such ventions have more potential to induce health/exercise change than any theory. The appropriateness of using these practical theories to study adherence isdiscussed. Lewin's (195 1) point about there being nothing so as a good theory for applied research and intervention is the underlying of the article.     

Reasons for Exercise and Body Esteem: Men's Responses to Self-Objectification

In this study, we applied the construct of self-objectification to men, specifically to examine the role of reasons for exercise in men's responses to objectification. A questionnaire that assessed self-objectification, reasons for exercise, body esteem, and self-esteem was voluntarily completed by 153 Australian participants between the ages of 18 and 35 years (82 men and a comparison group of 71 women). Self-objectification and appearance-related reasons for exercise were significantly negatively related to body esteem for both men and women. Self-objectification was also positively related to appearance-related reasons for exercise. The latter was found to mediate the relationship between self-objectification and body esteem for both men and women. Men were just as likely as women to exercise for appearance-related reasons. Together, the results suggest that objectification may be sensibly applied to men and that exercising for appearance-related reasons appears to exacerbate the negative impact that self-objectification has on both men's and women's esteem.     

Performance of a psychomotor skill following rest, exercise at the plasma epinephrine threshold and maximal intensity exercise

The purpose of this study was to examine the effect of exercising at the epinephrine threshold and at Maximum Power Output on the performance of a skill that requires both decision-making and motor performance. Participants (N=12) undertook an incremental test to exhaustion from which their epinephrine threshold and Maximum Power Output were calculated. They were then examined on a soccer skill test following rest and exercise that was previously determined to elicit their epi nephrine threshold and Maximum Power Output. The soccer test examined the participants' speed and accuracy of response. Speed of response was measured by voice reaction time and whole body reaction time. No significant effects of exercise were shown for any of the variables. The need for further research using more complex skill tests and the use of discontinuous exercise protocols, rather than continuous ones, is recommended.     

Dépendance et exercice physique : une échelle de dépendance à l'exercice physique

The regular practice of physical exercises is generally considered from the point of view of the favorable consequences which can result from it. This prospect tends to leave aside negative aspects of this practice when it is very intense in particular. Some authors consider the negatives aspects of this practice and name this phenomenon: exercise dependence. There are divergences in the definition as well as in the operationnalisation of the concept of exercise dependence. The use of non-valid measuring instruments contributed to confusion in this field. Among the ten measuring instrument available, a scale held our attention, it acts of the scale of the physical exercise dependence, which has satisfactory psychometric qualities.     

Interactive Effects of Exercise Status and Observer Gender on the Impressions Formed of Men

The present study was designed to examine whether men and women differ in the impressions they form of men based on exercise status. Male and female participants (N?=?183) rated a male exercise or control target on both physical and personality variables. Analysis of the physical characteristics revealed a significant condition by gender interaction where male participants rated the control target as significantly less fit (as compared to the exercise target) than did female participants. Analyses also revealed exercise status main effects for both physical and personality characteristics; exercisers were viewed in a more positive light than control targets. The present findings revealed that exercise status might have differential effects on impression formation depending on the gender of the people who are forming the impression.     

Translating Empirically Supported Strategies Into Accessible Interventions: The Potential Utility of Exercise for the Treatment of Panic Disorder

Many patients suffering from panic disorder do not receive adequate care. Advances in the conceptualization and treatment of panic disorder encourage innovative strategies for targeting core fears (fears of anxiety sensations) that underlie this disorder. In this article, we discuss the use of exercise as a potential strategy for therapeutic exposure to these feared sensations, and the role that exercise may play as an acceptable intervention to aid the dissemination of exposure-based approaches to the treatment of panic disorder. Evidence for the efficacy of exercise for the treatment of anxiety and panic is presented; along with strategies to enhance the role exercise can play as an interoceptive (internal sensation) exposure procedure. Finally, issues of comorbidity and exercise acceptability are discussed. Our conclusion is that exercise-based interventions are promising strategies for improving the utilization of exposure-based interventions for panic disorder. Clinical guidelines and future research directions are discussed.     

Applying test operating characteristics to measures of exercise motivation: A primer

Physical activity programmes that include a motivational counselling component can be effective at increasing exercise participation. Reliable screening procedures could provide a cost effective method of identifying and channelling those ‘at risk’ for non‐participation into a motivational counselling intervention and increase participation and long‐term adherence. Traditional statistical methods have played an important step in developing measures that are good predictors of future exercise behaviour. Test operating characteristics (TOCs), a set of clinical outcome statistics, could be used to evaluate the accuracy of these measures as screening tools in identifying those ‘at risk’ for non‐participation and those ‘not at risk’ for use in applied settings, such as physical activity programmes. This paper will provide a primer on the use of TOCs, particularly as they apply to the evaluation of measures of exercise motivation. Also provided is an example application using eight measures of exercise motivation previously used in research.     

PHILOSOPHY IN FRAGMENTS: CULTIVATING PHILOSOPHIC THINKING WITH THE PRESOCRATICS

Abstract: This article presents a strategy for introducing Presocratic thought to students in a manner that is both engaging and relevant. The first section addresses students' reactions to the claim that the Presocratics were the first philosophers. The second section considers how the fragmentary state of Presocratic thought does not hinder its comprehension. The third section proposes a classroom exercise for testing the scientific merits of each of the Presocratic theories. The final section proposes the use of a mock trial as a means of applying the materialist approach introduced by the Presocratics to contemporary debates about free will and determinism.