Physical exercise, social background, and the well-being of older adult women

28 older women participating in an exercise program were compared to 30 older women not participating in an exercise program on two behavioral measures. There were no significant main effects for participation-nonparticipation in an exercise program. Significant main effects were found, however, for each of three social variables.     

Age, exercise, and coding performance

We investigated the effects of exercise on the coding performance of young and older subjects. Hypotheses were tested that exercise either facilitates spatial localization or reduces susceptibility to distraction in older subjects. In a balanced design, we administered Digit Symbol and Symbol Digit coding tasks to exercisers and nonexercisers at two age levels under conditions of low or high within-task interference. The findings showed higher performance by the exercisers than by the nonexercisers only at the older age level and only with the Symbol Digit task. These findings support the hypothesis that exercise compensates for a loss of spatial localization skills with age. We found no evidence that susceptibility to distraction either increased with age or was affected by chronic exercise.     

Effects of aerobic exercise training, age, and physical fitness on memory-search performance

We investigated the effects of exercise training on memory performance. One group of 13 men (M = 42.92 years of age) participated in supervised aerobic exercise (jogging) three times a week for 12 weeks. A second group of 15 men (M = 43.67 years of age) performed anaerobic exercise (strength training) for the same period of time. Subjects' reaction time (RT) performance in a memory-search task was assessed both before (Time 1) and after (Time 2) the 12 weeks of exercise training. Results indicated that there was no significant change in memory-search performance over time as a function of exercise training. Analyses of the Time 2 RTs demonstrated that aspects of memory-search performance were related significantly both to subjects' initial (Time 1) level of fitness and to age, but not to the amount of change in fitness associated with aerobic exercise training over this 12-week duration in this age group.     

Cigarette Smoking, Physical Activity, and the Health Status of College Students

Research has supported a negative correlation between cigarette smoking and exercise; however, the temporal nature of this association is not obvious. We modeled the relationships among smoking, exercise, and self-perceived health over time, within a college population. We collected 5 waves of data from 1,023 undergraduate students over a 14-month period. The results verified that smoking and exercise each made independent contributions in the prediction of health. Smoking was associated with reduced exercise over time, while no evidence was found for the reverse relationship. Our final mediation model demonstrates that smoking is related to poorer self-perceived health, and that this effect is partially mediated by the fact that smokers are less likely to engage in exercise.     

Vulnerability Beliefs, Symptom Experiences, and the Processing of Health Threat Information: A Self-Regulatory Perspective

This study used a self-regulation model of health behavior to explore the impact of risk perceptions and disease-risk symptoms on responses to health messages. Undergraduates with beliefs of high or low vulnerability to heart disease participated in a task that either did or did not induce disease-risk symptoms. Participants were then given a threatening or reassuring message about heart disease prevention, or no message. Participants with high-vulnerability beliefs reported higher exercise intentions only after the reassuring message, and then only in the absence of risk symptoms. However, their exercise rates were increased by both messages and by the symptoms. Participants with preexisting beliefs of low vulnerability reported higher risk perceptions after experiencing the symptoms; only the threat message enhanced their exercise rates.     

Personality,exercise and psychological well-being: Static relationships in the community

It is often claimed that participation in physical exercise is associated with a range of psychological benefits. In addition, certain personality traits have been linked with patterns of exercise participation. However, almost no research has examined the roles of personality, exercise, and psychological well-being in a single study. The present study examined the relationships between exercise, personality traits, and psychological health in a sample of 204 women and 48 men, recruited from health clubs and adult education classes by postal survey. Results from the women in the sample suggest that participation in physical exercise contributed only a small amount of variance (6%) on the prediction of Positive Affect. Personality factors were by far the most significant determinants of psychological well-being.     

The effects of physique-salient and physique non-salient exercise videos on women's body image, self-presentational concerns, and exercise motivation

This experiment examined the effects of exposure to physique-salient (PS) and physique non-salient (PNS) exercise videos and the moderating influence of perceived physique discrepancies, on body image, self-presentational concerns, and exercise motivation. Eighty inactive women (M age = 26) exercised to a 30 min instructional exercise video. In the PS condition, the video instructor wore revealing attire that emphasized her thin and toned physique. In the PNS condition, she wore attire that concealed her physique. Participants completed pre- and post-exercise measures of body image, social physique anxiety (SPA) and self-presentational efficacy (SPE) and a post-exercise measure of exercise motivation and perceived discrepancies with the instructor's body. No main or moderated effects emerged for video condition. However, greater perceived negative discrepancies were associated with poorer post-exercise body satisfaction and body evaluations, and higher state SPA. There were no effects on SPE or motivation. Results suggest that exercise videos that elicit perceived negative discrepancies can be detrimental to women's body images.     

The Impact of Exercise on Suicide Risk: Examining Pathways through Depression,PTSD, and Sleep in an Inpatient Sample of Veterans

Suicide has a large public health impact. Although effective interventions exist, the many people at risk for suicide cannot access these interventions. Exercise interventions hold promise in terms of reducing suicide because of their ease of implementation. While exercise reduces depression, and reductions in depressive symptoms are linked to reduced suicidal ideation, no studies have directly linked exercise and suicide risk. The current study examined this association, including potential mediators (i.e., sleep disturbance, posttraumatic stress symptoms, and depression), in a sample of Veterans. SEM analyses revealed that exercise was directly and indirectly associated with suicide risk. Additionally, exercise was associated with fewer depressive symptoms and better sleep patterns, each of which was, in turn, related to lower suicide risk.     

Feasibility,acceptability, and impact of a web-based gratitude exercise among individuals in outpatient treatment for alcohol use disorder

This mixed methods pilot study examined the feasibility, acceptability, and impact of a web-based gratitude exercise (the ‘Three Good Things’ exercise (TGT)) among 23 adults in outpatient treatment for alcohol use disorder. Participants were randomized to TGT or a placebo condition. The intervention was feasible with high rates of completion. Participants found TGT acceptable and welcomed the structure of daily e-mails; however, they found it difficult at times and discontinued TGT when the study ended. Participants associated TGT with gratitude, although there were no observed changes in grateful disposition over time. TGT had a significant effect on decreasing negative affect and increasing unactivated (e.g. feeling calm, at ease) positive affect, although there were no differences between groups at the 8 week follow-up. Qualitative results converged on quantitative findings that TGT was convenient, feasible, and acceptable and additionally suggested that TGT was beneficial for engendering positive cognitions and reinforcing recovery.     

Threshold assessment of attitude,subjective norm,and perceived behavioral control for predicting exercise intention and behavior

According to the theory of planned behavior (TPB), attitude, subjective norm, and perceived behavioral control (PBC) are hypothesized to have linear associations with intention and behavior. However, no previous research has examined this hypothesized linearity across scale responses. Further, no study using social cognitive measures has detailed the incremental increases in the proportion of people meeting the American College of Sports Medicine's (ACSM) exercise guidelines across scale responses. The purpose of this study was to examine mean scores of intention and behavior and detail the proportion of participants meeting ACSM's exercise guidelines for each TPB construct response category (i.e. 1–7). Participants were university undergraduates (N=585) who completed measures of the TPB and a 2-week follow-up of exercise behavior. Results were evaluated using effect sizes (d,w) and p-levels, and provided general support for the linear effects of affective and instrumental attitude, but PBC and subjective norm were identified as having specific thresholds. Further, thresholds of positive, but not negative, exercise social cognition were identified for meeting ACSM's criteria with the exception of affective attitude. Threshold analysis was discussed as a novel way of analyzing TPB data by providing additional information about the expected success of intervention efforts focused on TPB constructs.     

才思泉涌“举步”间：体育运动对创造性思维的影响

创造性思维是运用独特且新颖的观点解决问题的思维形式,发散与聚合思维是两种常见的类型。体育运动对发散与聚合思维具有不同的影响,且受到运动强度、方式、时长以及个体差异等因素的调节。目前解释体育运动如何影响创造性思维的理论有情绪假说、执行功能假说与身心隐喻理论。未来的研究需要在进一步重视研究规范性的基础上,加强神经科学研究并拓宽群体覆盖面,关注体育运动与创造性成就的关系,为开具创造性思维运动处方提供有力的科学支持。     

Sex characteristics,task clarity,and authority

This study was conducted to investigate the effect of sexual stereotyping on the exercise of authority. The hypotheses were that the sexual composition of the group affects the authority behavior of group leaders when the task has low clarity but that sex characteristics have no effect on authority behavior when the task has high clarity. These predictions were expected to hold both in situations where there is a direct association between sex and the task ability and in situations where no such connection is established. As predicted, no significant difference was found in the number of high control acts made by male and female leaders in the high task clarity conditions, even when sex was directly related to the task ability. Also as hypothesized, sex effects did operate strongly in the low task clarity conditions. Male leaders made significantly more high control acts than female leaders, even in conditions where no prior relation was established between sex and the task ability. Thus, these results indicate that the effect of sex characteristics on the exercise of authority is enhanced in low task clarity situations and is neutralized in high task clarity situations.A preliminary version of this paaper was presented at the West Coast Conference for Small Group Research, San Francisco, California, April 24, 1974. We would like to acknowledge the comments made by Anne McMahon and Mary Walshok and the research assistance provided by Sue Aldrich, Patti Baird, Jim Hart, Debbie Jones, Glenn Kassel, Jane Morrison, Karen Scheblein, and Kay Smith.     

Aging, exercise, and attention.

The authors investigated the relationship among aging, attentional processes, and exercise in 2 experiments. First they examined age differences on 2 attentional tasks, a time-sharing task and an attentional flexibility task. Young adults alternated attention between 2 sequenced tasks more rapidly and time-shared the processing of 2 tasks more efficiently than older adults. They then investigated the effects of aerobic exercise on the same 2 attentional tasks in older adults. Following the 10-week exercise program, older exercisers showed substantially more improvement in alternation speed and time-sharing efficiency than older controls. Interestingly, this exercise effect was specific to dual-task processing. Both groups of subjects showed equivalent effects on single-task performance. These results indicate that aerobic exercise can exert a beneficial influence on the efficiency of at least 2 different attentional processes in older adults.     

Comparison of water- and land-based exercise in the reduction of state anxiety among older adults

This study examined the effect of an acute exercise program of different exercise conditions on state anxiety among older adults. 73 healthy subjects were recruited and randomly assigned to either water exercise group (n = 36) or land exercise group (n = 37). State anxiety was assessed before exercise and following exercise. Subjects in the water exercise performed a 70-min. exercise program consisting of a 10-min. warm-up, a 20-min. brisk walking, a 20-min. rhythmic dancing, a 10-min. resistance training, and a 10-min. cool down exercise. The land exercise program contained a 10-min. warm up and a 30-min. combined endurance and resistance exercise, followed by a 10-min. cool down exercise. Analysis showed that both exercise groups scored significantly (p<.001) lower on anxiety after exercise, but there was no significant interaction for group by trial for scores on state anxiety. The data indicate that elderly persons who participate in these types of exercise report lower state anxiety.     

Psychological States Following Resistance Exercise of Different Workloads

This experiment was designed to examine the effect of resistance exercise of different workloads on subsequent psychological states. Participants, 54 undergraduate students (34 male, 20 female), were randomly assigned to one of three groups: (a) low workload resistance exercise (50% of 1 RM), (b) high workload resistance exercise (80% of 1RM), or (c) a no exercise control. Resistance exercise consisted of three sets of five repetitions for three free-weight exercises: the bench press, overhead press, and dumbbell row. Psychological state was indicated by the Exercise-Induced Feeling States Inventory (Gauvin & Rejeski, 1993) and was assessed prior to exercise and at 10, 25, and 40 min post exercise. Data were analyzed via a 3 (group) x 4 (time) ANOVA with repeated measures on the second factor. All exercise participants experienced an increased sense of revitalization, which persisted for a greater extent in low rather than high workload participants. None of the groups reported changes over time in positive engagement or tranquility. In addition, while exercise groups did report a reduction in physical exhaustion during recovery, this improvement did not differ from no exercise controls nor did it differ between exercise groups. Thus, weight lifting appears to result in a sense of revitalization, an effect whose duration may be impacted by exercise workload.     

A transdisciplinary model integrating genetic, physiological, and psychological correlates of voluntary exercise.

OBJECTIVE: Physical inactivity contributes to as many as 250,000 premature deaths per year (R. R. Pate et al., 1995). The authors' objective was to test a transdisciplinary model of the ways in which genetic variants, physiological factors, and psychological factors are thought to influence exercise with 64 healthy, regular exercisers. DESIGN: In a within-subjects design, psychological and physiological responses to exercise were compared with responses to a sedentary activity. MAIN OUTCOME MEASURES: The authors measured affective state, perceived exertion, heart rate, and temperature change in response to moderate exercise versus sedentary activity. They also quantified genotypes on a single nucleotide polymorphism in the brain-derived neurotrophic factor (BDNF) gene. RESULTS AND CONCLUSIONS: The data show a relation between increases in positive affective states and acute exercise behavior, as opposed to a sedentary control. The BDNF gene moderated the effect of exercise on mood, heart rate, and perceived exertion. Physiological factors were, in turn, related to mood response, and mood response was a significant correlate of motivation to exercise in the future and of current exercise behavior. The model has potential as a framework for the basic study of the genetic, physiological, and psychological processes involved with voluntary exercise and as a tool for the applied examination of tailored exercise interventions and their efficacy for different subsets of individuals.     

Nozick, Prohibition, and No-Fault Motor Insurance

ABSTRACT No‐fault insurance schemes involve prohibiting exercise of the natural rights of individuals to recover damages from those whose negligence causes them harm. Public debate about no‐fault emphasises consequentialist benefits, and takes little account of the putative rights of individuals to recovery. I argue, however, that even on a relatively extreme rights‐based conception of justice, such as Robert Nozick’s, it may be possible to justify a no‐fault scheme. The argument proceeds by: (1) elucidating what compensation the Nozickian must offer in return for prohibiting an activity such as the private recovery of damages; and consequently (2) arguing that there is no prima facie reason to think that the compensation afforded by participation in a no‐fault scheme would be any less adequate than that afforded by participation in a system of tort law     

Conscientiousness, the transtheoretical model of change, and exercise: a neo-socioanalytic integration of trait and social-cognitive frameworks in the prediction of behavior

ABSTRACT Relationships between conscientiousness-related traits and transtheoretical model (TTM) of change constructs, exercise self-efficacy, and exercise behavior were examined in college and community samples ( N =566). Measures of the conscientiousness-related traits of conventionality and industriousness were expected to show positive relations with measures of exercise behavior stage location, processes of exercise behavior change, endorsing the benefits of exercise behavior (i.e., decisional balance), exercise self-efficacy, and self-reported exercise behavior. In addition, based on Neo-Socioanalytic Theory ( Roberts & Wood, 2006 ) an intervening role was predicted for TTM constructs and exercise self-efficacy in the relationship between conscientiousness-related traits and exercise behavior stage location. The results showed industriousness (being hardworking) to be the most robust conscientiousness-related predictor of stage location, processes of change, endorsing the benefits of exercise behavior, and exercise self-efficacy. Mediation analyses showed the relationship between industriousness and exercise behavior stage location to be fully accounted for by select processes of change and exercise self-efficacy scales. The results are discussed in terms of a useful integration of trait and social-cognitive approaches to exercise behavior, with an emphasis on the role of industriousness as an important individual difference factor therein.     

Relation of level of exercise, age, and weight-cycling history to weight and eating concerns in male and female runners.

We examined the association between level of exercise and degree of weight preoccupation in a large sample of male and female runners, as well as risk factors posited to influence weight and eating concerns in the general population. Subjects were 2,459 males and 1,786 females who had completed a questionnaire on weight and eating concerns in a national running magazine. Eight percent of the males and 24% of the females had symptomatic scores on the Eating Attitudes Test (EAT). Exercise level, defined as weekly running mileage, was positively associated with excessive weight and eating concerns in males but not in females. Both sexes with a history of weight cycling were more likely to have symptomatic EAT scores than those with no such history. These results highlight the importance of studying these concerns in males as well as females and of examining the role of exercise level and weight-cycling history in the development of serious weight preoccupations.     

Incremental exercise, plasma concentrations of catecholamines, reaction time, and motor time during performance of a noncompatible choice response time task

The primary purpose was to examine the effect of incremental exercise on a noncompatible response time task. Participants (N=9) undertook a 4-choice noncompatible response time task under 3 conditions, following rest and during exercise at 70% and 100% of their maximum power output. Reaction and movement times were the dependent variables. Maximum power output had been previously established on an incremental test to exhaustion. A repeated-measures multivariate analysis of variance yielded a significant effect of exercise intensity on the task, observation of the separate univariate repeated-measures analyses of variance showed that only movement time was significantly affected. Post hoc Tukey tests indicated movement time during maximal intensity exercise was significantly faster than in the other two conditions. The secondary purpose of the study was to assess whether increases in plasma concentrations of adrenaline and nor-adrenaline during exercise and power output would act as predictor variables of reaction and movement times during exercise. Catecholamine concentrations were based on venous blood samples taken during the maximum power output test. None of the variables were significant predictors of reaction time. Only power output was a significant predictor of movement time (R2 = .24). There was little support for the notion that peripheral concentrations of catecholamines directly induce a central nervous system response.