Effects of Aerobic Exercise Training on Daily Psychological Processes in Family Caregivers: Secondary Analyses of a Randomized Controlled Trial.

The aim of this study was to examine the effects of a 24-week aerobic exercise training program on daily psychological processes and occurrence of stressors in a group of previously physically underactive family caregivers of patients with dementia. As part of the Fitness, Aging, and STress (FAST) randomized controlled trial, 68 participants (F = 55; M = 13) were randomized to either a staff-supported, 24-week aerobic training (N = 34) program or waitlist control (N = 34) group. Approximately 2 weeks prior to randomization, ecological momentary assessments were completed 6 times per day for 7 days and again in the 24th week of the trial to assess exposure to levels of momentary positive affect, negative affect, rumination, control, and the occurrence of stressors throughout the day. These secondary analyses with data from 56 of the participants revealed that the intervention group showed a significantly larger increase in daily positive affect and perceptions of control compared to control participants over the course of the intervention. A treatment effect was also found for negative affect and rumination, whereby both decreased to a greater extent in the intervention group when compared with participants in the control condition. The 24-week aerobic training program had significant impacts on daily psychological processes in family caregivers, deepening our understanding of the robust effects of exercise on mental health.

Coping and health behaviours in times of global health crises: lessons from SARS and West Nile.

We examined perceived threats of Severe Acute Respiratory Syndrome and West Nile Virus using an Internet-based questionnaire. Higher levels of perceived threats of diseases were associated with increases in a variety of ways of coping, including empathic responding and wishful thinking. In turn, we examined how coping with the perceived health threat was related to two specific health related behaviours: taking recommended precautions, and avoiding people in an attempt to avoid disease. The findings from linear regression indicated that empathic responding, in response to the threat of a virulent agent, was related to taking recommended and effective health precautions. On the other hand, wishful thinking was associated with those behaviours that may potentially lead to economic hardship in afflicted areas, such as avoiding people perceived to be at risk for an infectious agent. Implications for health promotion are discussed.

The interactional context of problem-, emotion-, and relationship-focused coping: the role of the big five personality factors.

This study examined the role that personality and situational factors play in three forms of coping responses: problem-, emotion- and relationship-focused. Coping responses were strongly associated with whether the situation involved a primarily agentic (work) or communal (interpersonal) stressor. Among communal stressors, the involvement of close versus distant others was also associated with coping responses. Situational factors were linked most strongly with the use of problem-focused (planful problem solving) and relationship-focused (empathic responding) modes of coping. Dimensions of personality derived from the five-factor model (Neuroticism, Extraversion, Openness to Experience, Agreeableness, and Conscientiousness) had important associations with coping responses. Coping responses were best predicted by models that included both the additive and multiplicative effects of person and situation factors. Taken together, the findings suggest that a model of coping that considers both agentic and communal dimensions of stressful situations, includes interpersonal dimensions of coping, and considers personality and situation factors in tandem is needed to increase the predictive utility of current models.

Effects of daily stress on negative mood.

This article examines the influence of daily stressors on mental health in a community sample. Ss were 166 married couples who completed diaries each day for 6 weeks. In pooled within-person analyses, daily stressors explained up to 20% of the variance in mood. Interpersonal conflicts were by far the most distressing events. Furthermore, when stressors occurred on a series of days, emotional habituation occurred by the second day for almost all events except interpersonal conflicts. Contrary to certain theoretical accounts, multiple stressors on the same day did not exacerbate one another's effects: rather an emotional plateau occurred. Finally on days following a stressful event, mood was better than it would have been if the stressor had not happened. These results reveal the complex emotional effects of daily stressors, and in particular they suggest that future investigations should focus primarily on interpersonal conflicts.

The impact of daily stress on health and mood: psychological and social resources as mediators.

This study examined daily stress processes among 75 married couples across 20 assessments during a 6-month period. The somatic and psychological effects of common everyday hassles were investigated. Overall, there was a significant relationship between daily stress and the occurrence of both concurrent and subsequent health problems such as flu, sore throat, headaches, and backaches. The relationship of daily stress to mood disturbance was more complex. The negative effects of stress on mood were limited to a single day, with the following day characterized by mood scores that were better than usual. Furthermore, striking individual differences were found in the extent to which daily stress was associated with health and mood across time. Participants with unsupportive social relationships and low self-esteem were more likely to experience an increase in psychological and somatic problems both on and following stressful days than were participants high in self-esteem and social support. These data suggest that persons with low psychosocial resources are vulnerable to illness and mood disturbance when their stress levels increase, even if they generally have little stress in their lives.

Dynamics of a stressful encounter: cognitive appraisal, coping, and encounter outcomes.

Despite the importance that is attributed to coping as a factor in psychological and somatic health outcomes, little is known about actual coping processes, the variables that influence them, and their relation to the outcomes of the stressful encounters people experience in their day-to-day lives. This study uses an intraindividual analysis of the interrelations among primary appraisal (what was at stake in the encounter), secondary appraisal (coping options), eight forms of problem- and emotion-focused coping, and encounter outcomes in a sample of community-residing adults. Coping was strongly related to cognitive appraisal; the forms of coping that were used varied depending on what was at stake and the options for coping. Coping was also differentially related to satisfactory and unsatisfactory encounter outcomes. The findings clarify the functional relations among appraisal and coping variables and the outcomes of stressful encounters.

Appraisal, coping, health status, and psychological symptoms.

In this study we examined the relation between personality factors (mastery and interpersonal trust), primary appraisal (the stakes a person has in a stressful encounter), secondary appraisal (options for coping), eight forms of problem- and emotion-focused coping, and somatic health status and psychological symptoms in a sample of 150 community-residing adults. Appraisal and coping processes should be characterized by a moderate degree of stability across stressful encounters for them to have an effect on somatic health status and psychological symptoms. These processes were assessed in five different stressful situations that subjects experienced in their day-to-day lives. Certain processes (e.g., secondary appraisal) were highly variable, whereas others (e.g., emotion-focused forms of coping) were moderately stable. We entered mastery and interpersonal trust, and primary appraisal and coping variables (aggregated over five occasions), into regression analyses of somatic health status and psychological symptoms. The variables did not explain a significant amount of the variance in somatic health status, but they did explain a significant amount of the variance in psychological symptoms. The pattern of relations indicated that certain variables were positively associated and others negatively associated with symptoms.