This study investigated mechanisms for the stressor-induced changes in muscle fatigability in men and women. Participants performed an isometric-fatiguing contraction at 20% maximal voluntary contraction (MVC) until failure with the elbow flexor muscles. Study one (n = 55; 29 women) involved two experimental sessions: 1) a high-stressor session that required a difficult mental-math task before ...

This paper presents an Artificial Neural Network (ANN) model for failure prediction of critical electronic systems in power plants. Reliability modeling of electronic circuits can be best performed by the stressor – susceptibility interaction model. A circuit or a system is deemed to be failed once the stressor has exceeded the susceptibility limits. For on-line prediction, validated stressor v...

Stage of Alarm. When a stressor is first encountered, the initial series of responses depends upon the autonomic nervous system, the immune system and other defenses to cope with the emotional, behavioral and physiological aspects of the stressor. Stage of Resistance. Involves maintenance of this reaction to the stressor, which includes reparative processes such as fever regulation, tissue rep...

Major theories informing conceptions of psychological well-being draw heavily from Western-centric perspectives, which often neglect culturally bound frameworks. We investigated how U.S. Hispanics/Latinos conceptualize well-being, how psychosocial and behavioral aspects may increase well-being, and how psychosocial stressors may impact positive emotional states. Spanish-speaking Hispanic/Latino...

OBJECTIVES To examine the effects of physical work environment on long term sickness absence and to investigate interaction between physical and psychosocial risk factors. DESIGN AND SETTING Prospective cohort study of long term sickness absence among employees in Denmark. PARTICIPANTS 5357 employees interviewed in 2000 about their physical work environment, and various covariates were foll...

Mental rehearsal of past stressors through rumination may extend the physiological stress response and exposure to stress-related physiological mediators, such as cortisol. If repeated over time, this prolonged activation may contribute to a number of chronic health conditions. Findings from the emerging literature on the tendency to ruminate and its association with cortisol have been somewhat...

Exposing mice to a social stressor called social disruption (SDR) that involves repeated social defeat during intermale aggression results in increased circulating cytokines, such as interleukin-1α (IL-1α) and IL-1β, and increased reactivity of splenic CD11b(+) macrophages to inflammatory stimuli. For example, upon lipopolysaccharide stimulation, macrophages from stressor-exposed mice produce h...

Allergic rhinitis (AR) is the fifth most common chronic disease, and the association between allergic disorders and anxiety is well-documented. To investigate how anxiety and stressors modulate skin prick test (SPT) responses and associated inflammatory responses, 28 men and women with AR were selected by clinical history and skin test responses. The participants were admitted twice to a hospit...

Selenomethionine (Se-Met) is the major dietary form of selenium (Se). While Se is a required nutrient, it can also influence the physiological stress response because it stimulates greater concentrations of cortisol in blood plasma of exposed fish. However, little is known about the effects of exposure to Se on the ability to cope with a secondary stressor. In the current study, female rainbow ...