Protection Motivation Theory and Adolescents' Perceptions of Exercise1

Coping strategies endorsed by adolescents in dealing with a potential threat to their health were assessed in a study which investigated components of protection motivation theory. Year 9 and 10 high school students were presented with information about cardiovascular disease risk and the role of exercise in maintaining cardiorespiratory fitness. Three components specified by the theory were manipulated: response efficacy (effectiveness of exercise in preventing cardiovascular disease), response costs (costs associated with taking up a regular program of exercise) and self-efficacy (belief in ability to carry out a program of exercise) in a 2 × 2 × 2 factorial design with two levels (high vs. low) of each variable. It was hypothesized that such information would affect participants' perceptions of response efficacy, response costs, self-efficacy, and their selection of coping strategies. Six dependent variables were investigated: two adaptive coping strategies (behavioral intention to exercise, rational problem solving) and four maladaptive strategies (avoidance, wishful thinking, hopelessness, arid fatalism). Manipulation checks found significant differences between the high and low conditions of each independent variable. Adaptive strategies were strongly endorsed, whereas endorsement of the maladaptive strategies ranged from minimal to complete disagreement. Participants in the high self-efficacy condition indicated stronger intentions to exercise. Students in the low response efficacy condition demonstrated more endorsement of hopelessness and fatalism than did students in the high response efficacy condition. When exercising status was included as a fourth independent variable, it was found that active adolescents endorsed the adaptive coping strategies more strongly than did inactive adolescents. The cognitive coping strategies adopted by adolescents when dealing with perceived threats to their health may be influenced by information on the efficacy of relevant behavior, by perceptions of their ability to perform such behavior, and by their actual involvement with the behavior of concern.     

Manipulating self-efficacy in the exercise environment in women: influences on affective responses.

Self-efficacy was experimentally manipulated in an exercise context, and its effect on affective responses was examined. College women (N = 46) were randomly assigned to a high- or low-efficacy condition, and efficacy expectations were manipulated by means of bogus feedback and graphs depicting contrived normative data. The manipulation successfully influenced affective responses, with participants in the high-efficacy group reporting more positive and less negative affect than did the low-efficacy group. Efficacy was significantly related to feeling-state responses during and after activity but only in the high-efficacy condition. The results suggest that self-efficacy can be manipulated and that these changes are related to the affective experience associated with exercise. Such findings may have important implications for the roles played by self-efficacy and affect in exercise adherence.     

Effect of acute aerobic exercise on cognitive performance: Role of cardiovascular fitness

ObjectivesTo determine whether fitness and cognitive task type moderate the relationship between acute exercise and cognition.MethodsThirty-six healthy college-aged adults completed a maximal graded exercise test and were categorized as low, moderate, or high in cardiovascular fitness. Participants then performed the Stroop Test prior to and after an acute bout of cycling exercise that consisted of a 5-min warm-up, 20 min of exercise at moderate intensity (65% VO_2max), and a 5-min cool-down.ResultsIndividuals of all fitness levels improved in cognitive performance following exercise. With regards to fitness, while no differences were observed on the congruent condition as a function of fitness, high fit individuals showed the longest response time on the Stroop incongruent condition.ConclusionThe beneficial relationship between performance of an acute bout of exercise and cognitive performance were observed for both cognitive task types and for participants of all fitness levels. However, a curvilinear relationship was observed between fitness and cognitive task type performance such that participants who were moderately fit performed the best on the incongruent trials, implying that maintaining fitness at a moderate level is associated with better executive function.     

To see or not to see: effects of exercising in mirrored environments on sedentary women's feeling states and self-efficacy.

Effects of a mirrored exercise environment and body image concerns on changes in exercise-induced feeling states and self-efficacy were examined among 58 sedentary women (mean age = 20.7 years). Participants performed a 20-min bout of exercise in front of either a mirrored or a nonmirrored wall. Feeling states and self-efficacy were measured pre- and postexercise. Multilevel linear modeling indicated that regardless of their level of body image concern, women in the mirrored condition felt worse after exercising than women in the unmirrored condition. There were no effects of the environment or body image on self-efficacy. Results are consistent with predictions of objective self-awareness theory and have implications for promoting exercise among sedentary women.     

Self-efficacy's influence on persistence on a physical task: Moderating effect of performance feedback ambiguity

ObjectivesThe present investigation was designed to test the predictions of a control theory based view of self-regulation on the complex effects of self-efficacy on persistence. Specifically, self-efficacy was predicted to have a positive effect on persistence given unambiguous feedback, but a weak, negative effect given ambiguous feedback. Moreover, the research was designed to replicate an influential set of studies on self-efficacy.DesignA 2 (self-efficacy: low, high) × 2 (feedback ambiguity: low, high) between-groups ANOVA was conducted to examine the interaction between self-efficacy and feedback ambiguity in two trials of an isometric hand-grip competitive endurance task.MethodParticipants (87 females and 67 males) competed on a hand-grip strength task against confederates who claimed to have overworked their hand (high manipulated self-efficacy) or to be tennis players (low manipulated self-efficacy). The competition occurred either in the presence (high feedback ambiguity) or absence (low feedback ambiguity) of a physical barrier between the individuals. Persistence was how long individuals could grip at 50% of their maximum voluntary contraction.ResultsThe interaction was significant and in the predicted direction. Self-efficacy was also found to negatively relate to self-reported effort regardless of condition.ConclusionsThe results from the current study confirm that self-efficacy can foster persistence when one is aware of one's current state of performance. However, consistent with a control theory view of self-regulation, self-efficacy was unrelated to persistence when feedback was ambiguous. The results have implications for understanding the role of self-efficacy in sports and highlight the importance of replications with extensions.     

Internet-delivered physical activity intervention for college students with mental health disorders: a randomized pilot trial

The prevalence of mental health disorders among college students is rising and the increasing rates of anxiety and depression have important societal implications. Physical activity has been proposed as an adjuvant to traditional treatment approaches (i.e. psychotherapy or pharmacotherapy), and the internet is a potentially useful means of delivering physical activity information to the college-aged population. This randomized pilot trial examined the effects of an internet-based physical activity intervention on physical activity, self-efficacy, depression, and anxiety in college students (n?=?47) receiving mental health counseling. Physical activity, depression, anxiety, exercise self-efficacy, and barriers self-efficacy were assessed at baseline and post-intervention. There was a significant time effect for physical activity, with both groups increasing their physical activity levels across the 10-week intervention but with a larger increase in the intervention condition (d?=?0.68) than the control condition (d?=?0.05). Exercise and barriers self-efficacy declined across the intervention, but more so in the control than intervention condition. Effects on depression and anxiety were nonsignificant. Finally, correlation analyses showed increases in physical activity were associated with increases in exercise self-efficacy (r?=?0.62) and barriers self-efficacy (r?=?0.63) and decreases in depression (r?=?-0.44) in the intervention condition, but not in the control condition. These results suggest that an internet-delivered physical activity intervention may be a promising approach to promoting physical activity among college students undergoing mental health counseling.     

Compared to what? The effects of a frame of reference on older adults’ subjective memory

It is often unclear what comparisons older adults make when evaluating their own memory. If thinking about their memory relative to others, they may assess their own abilities differently than if comparing it to their past capabilities. To test the effect of reference frames on memory assessments and memory performance, we randomly assigned 120 older adults to one of three conditions in which we manipulated frames of reference (control, past-self comparison, or other adults comparison) on a memory self-efficacy questionnaire. Participants also completed general and specific memory predictions and an objective memory test. Participants in the past-self condition reported significantly lower global memory self-efficacy compared with the other adults and control conditions. No condition differences emerged for memory predictions, objective memory, or the likelihood of over- or underpredicting memory performance. These findings suggest that reference frames impact global memory self-efficacy, but do not influence the accuracy of subjective memory judgments.     

The anxiolytic effect of aqua aerobics in elderly women

This study examined the anxiolytic (anxiety reducing) effects of exercise for elderly women engaging in a single bout of aqua aerobics. Volunteers (N=29) completed questionnaires immediately before and after participating in an aqua aerobics class. The average age of participants was 66.4 yr. A brief form of Spielberger's State Anxiety Inventory and a questionnaire on demographic items were administered prior to engagement in exercise, and the brief form of the State Anxiety Inventory was administered again immediately after the exercise session. There was a significant difference on a t test between participants' ratings of anxiety before exercise (M = 16.8) compared to after exercise (M= 13.9); participants' ratings of state anxiety were somewhat lower after exercising. Weaknesses of the present study and suggestions for research are presented.     

The effects of humor on memory for non-sensical pictures

Two experiments investigated the effects of humor on memory for non-sensical pictures. Each picture was given three labels that differed in the degree of humor: high, low, and no humor labels. In Experiment 1, the humor of the picture labels was manipulated between participants. Participants were shown 30 pictures for 10 s each and were asked to rate the degree of humor of each picture. After the rating task, participants were asked to draw the pictures in an unexpected memory test. Performance in the memory test was best in the high humor label group, followed by the low and the no humor label groups. In Experiment 2, intention to learn (incidental versus intentional encoding tasks) as well as humor label was manipulated between the participants. In the incidental learning condition, the high humor group performed better than the low humor group, but in the intentional learning condition, there was no humor effect. The effects of humor on picture memory were discussed in terms of appraisal processing within a distinctiveness framework.     

General self-efficacy and control in relation to anxiety and cognitive performance

The present investigation employed a general measure of self-efficacy, a measure of perceived control, and items relating to expectation and evaluation (pre and post). The purpose was to determine whether general self-efficacy or perceived control best predicted the criterion variables of state anxiety and performance on a stressful cognitive task (solving anagrams) under conditions of high versus low control. These relationships were tested under the experimental conditions of high and low objective control (i.e., the actual control afforded by the situation). Results showed that general self-efficacy, relative to perceived control was a better predictor of state anxiety in the high and low control conditions but neither predicted actual performance. Participants’ expectations of task difficulty, their own performance, and their performance relative to the performance of others taken before the task were compared with their evaluations of difficulty and performance after completing the task. Participants indicated that the task was easier than anticipated, but rated their own performance more poorly after completion of the task. The study reported in this article was supported, in part, by Social Sciences and Humanities Research Council Grant No. 410-94-1473 to Norman S. Endler.     

General self-efficacy and control in relation to anxiety and cognitive performance

The present investigation employed a general measure of self-efficacy, a measure of perceived control, and items relating to expectation and evaluation (pre and post). The purpose was to determine whether general self-efficacy or perceived control best predicted the criterion variables of state anxiety and performance on a stressful cognitive task (solving anagrams) under conditions of high versus low control. These relationships were tested under the experimental conditions of high and low objective control (i.e., the actual control afforded by the situation). Results showed that general self-efficacy, relative to perceived control was a better predictor of state anxiety in the high and low control conditions but neither predicted actual performance. Participants’ expectations of task difficulty, their own performance, and their performance relative to the performance of others taken before the task were compared with their evaluations of difficulty and performance after completing the task. Participants indicated that the task was easier than anticipated, but rated their own performance more poorly after completion of the task. The study reported in this article was supported, in part, by Social Sciences and Humanities Research Council Grant No. 410-94-1473 to Norman S. Endler.     

Maternal self-efficacy and experimentally manipulated infant difficulty effects on maternal sensory sensitivity: a signal detection analysis

The impact of differences in maternal self-efficacy and infant difficulty on mothers' sensitivity to small changes in the fundamental frequency of an audiotaped infant's cry was explored in 2 experiments. The experiments share in common experimental manipulations of infant difficulty, a laboratory derived measure of maternal efficacy (low, moderate, and high illusory control), and the use of signal detection methodology to measure maternal sensory sensitivity. In Experiment 1 (N = 72), easy and difficult infant temperament was manipulated by varying the amount of crying (i.e., frequency of cry termination) in a simulated child-care task. In Experiment 2 (N = 51), easy and difficult infant temperament was manipulated via exposure to the solvable or unsolvable pretreatment of a learned helplessness task to mirror mothers' ability to soothe a crying infant. In both experiments, only mothers with high illusory control showed reduced sensory sensitivity under the difficult infant condition compared with the easy infant condition.     

On the positive and negative effects of self-efficacy on performance: Reward as a moderator

We address the controversy regarding the sign of the effect of self-efficacy on performance. We propose that when reward is high, self-efficacy has a positive effect on performance, whereas when reward is low, it has a negative effect. This hypothesis was tested in three experiments (with sample sizes of 76, 99, and 111) in which reward and self-efficacy were manipulated and performance was measured using different manipulations and tasks in both within-factor and between-factor designs. The results supported the hypothesis that reward moderates the effect of self-efficacy on performance. When reward was high, the effect of self-efficacy on performance was positive, whereas when reward was low, the effect of self-efficacy on performance was negative.     

Self-efficacy conception of anxiety

Abstract

In social cognitive theory, perceived self-efficacy to exercise control over potential threats plays a central role in anxiety arousal. Threat is a relational property reflecting the match between perceived coping capabilities and potentially hurtful aspects of the environment. People who believe they can exercise control over potential threats do not engage in apprehensive thinking and are not perturbed by them. But those who believe they cannot manage threatening events that might occur experience high levels of anxiety arousal. Experimental analyses of the microrelation between perceived self-efficacy and anxiety arousal reveal that perceived coping inefficacy is accompanied by high levels of subjective distress, autonomic arousal and catecholamine secretion. Environmental events are not always completely under personal control and most human activities contain some potential risks. The exercise of control over anxiety arousal, therefore, requires not only development of behavioral coping efficacy but also efficacy in controlling dysfunctional apprehensive cognitions. It is not frightful cognitions per se but the perceived self-inefficacy to turn them off that is the major source of anxiety arousal. Analyses of the causal structure of self-protective behavior show that anxiety arousal and avoidant behavior are mainly co-effects of perceived coping inefficacy.     

Effects of a Self-Efficacy Intervention on Exercise: The Moderating Role of Diabetes and Cardiovascular Diseases

The paper examines the influence of a brief tailored intervention on exercise levels and self-efficacy beliefs in the context of participants' health status. We hypothesised that the effects of a self-efficacy intervention targeting more frequent exercise would be larger among people with diabetes or cardiovascular diseases (CVD), compared to the effects of the intervention among individuals without such diseases. The treatment was tailored to participants' self-efficacy and was delivered by e-mail. Data from 187 adults were collected at two measurement points, with a 6-month follow-up. Participants reported their exercise frequency and self-efficacy scores, along with several social-cognitive variables, such as risk perception and intentions. Besides the influence of the intervention on exercise and self-efficacy, we found that the treatment effects were moderated by diabetes or CVD: Participants with those illnesses benefited from the intervention, compared to people without such diagnosis. Among participants with CVD or diabetes the effects of the intervention on behavior were mediated by changes in efficacy beliefs. The results indicated that a parsimonious treatment may contribute to change in exercise over the longer term, in particular among individuals with a disease related to the respective behavior. Changes in behavior may be explained by changes in respective beliefs.     

Emotional self-efficacy moderates anxiety-related impairments in math performance in elementary school-age youth

Excessive anxiety is associated with impairments in academic achievement. However, not all children with elevated anxiety share an equal risk for academic difficulty. The current study investigated whether individual differences in emotional self-efficacy - confidence in one’s ability to regulate negative emotions - protected against anxiety-related impairments in a standardized math exam in a sample of elementary school youth (N = 139). Results indicated that anxiety negatively predicted math test performance only for children with low levels of emotional self-efficacy. Students reporting high levels of emotional self-efficacy did not show anxiety-related decrements on the test performance. Emotional self-efficacy appears useful in managing negative effects of anxiety.     

The effects of acute stress and perceptual load on distractor interference

Selective attention can be improved under conditions in which a high perceptual load is assumed to exhaust cognitive resources, leaving scarce resources for distractor processing. The present study examined whether perceptual load and acute stress share common attentional resources by manipulating perceptual and stress loads. Participants identified a target within an array of nontargets that were flanked by compatible or incompatible distractors. Attentional selectivity was measured by longer reaction times in response to the incompatible than to the compatible distractors. Participants in the stress group participated in a speech test that increased anxiety and threatened self-esteem. The effect of perceptual load interacted with the stress manipulation in that participants in the control group demonstrated an interference effect under the low perceptual load condition, whereas such interference disappeared under the high perceptual load condition. Importantly, the stress group showed virtually no interference under the low perceptual load condition, whereas substantial interference occurred under the high perceptual load condition. These results suggest that perceptual and stress related demands consume the same attentional resources.     

Emphasizing appearance versus health outcomes in exercise: The influence of the instructor and participants’ reasons for exercise

The objectifying nature of exercise environments may prevent women from reaping psychological benefits of exercise. The present experiment manipulated self-objectification through an exercise class taught by an instructor who emphasized exercise as either a means of acquiring appearance or health outcomes. The purpose of this study was to test for interactions between the class emphasis and participants’ reasons for exercise (i.e., appearance, health) predicting participants’ state self-objectification, state social physique anxiety, exercise class enjoyment, and future intentions of returning to a similar exercise class. Results, obtained via pre- and post-exercise questionnaires, revealed a significant interaction between class emphasis and health reasons for exercise predicting state self-objectification. Participants with lower health reasons for exercise reported greater state self-objectification in the appearance-focused class compared to those with higher health reasons for exercise. Adopting stronger health reasons for exercise may buffer exercise participants from the more objectifying aspects of the group exercise environment.     

The effects of acute stress and perceptual load on distractor interference

Selective attention can be improved under conditions in which a high perceptual load is assumed to exhaust cognitive resources, leaving scarce resources for distractor processing. The present study examined whether perceptual load and acute stress share common attentional resources by manipulating perceptual and stress loads. Participants identified a target within an array of nontargets that were flanked by compatible or incompatible distractors. Attentional selectivity was measured by longer reaction times in response to the incompatible than to the compatible distractors. Participants in the stress group participated in a speech test that increased anxiety and threatened self-esteem. The effect of perceptual load interacted with the stress manipulation in that participants in the control group demonstrated an interference effect under the low perceptual load condition, whereas such interference disappeared under the high perceptual load condition. Importantly, the stress group showed virtually no interference under the low perceptual load condition, whereas substantial interference occurred under the high perceptual load condition. These results suggest that perceptual and stress related demands consume the same attentional resources.     

The affective interval: An investigation of the peaks and valleys during high- and moderate-intensity interval exercise in regular exercisers

Evidence supports the notion that people generally feel worse during high(er) intensity exercise but experience an affective rebound immediately following cessation that often exceeds pre-exercise feeling states. Considering rest/recovery is an integral part of interval exercise, it is of interest to determine the degree of affective reactivity and recovery that may occur during interval exercise of different intensities. The purpose of the present study was to examine affective reactivity to and recovery from an acute bout of moderate-intensity (MIIE) and high-intensity interval exercise (HIIE). Participants (N = 25, 13 females, 23.3 ± 4.0 yrs, BMI = 25.7 ± 4.1 kg m⁻²) completed 4 sessions at the same time of day with at least 24-h between each session: a baseline session to record resting affect, a graded exercise test on a stationary bike (cycle ramp protocol 25 W·min-1) to volitional exhaustion, and then completed a high- (HIIE) and moderate-intensity interval exercise (MIIE) session where affect was recorded prior to, during, and up to 30-min post exercise. Participants reported more negative feeling states during the HIIE session compared to the MIIE session, but these states recovered similarly as early as 5-min post-exercise. In addition, while affective change (reactivity and rebounds) were relatively equal during the MIIE, declines in affect during the HIIE outweighed the affective rebounds associated with rest, resulting in a large decline in affective state from pre-exercise.