Although laboratory stressor tests have been applied as a preliminary protocol in some cardiovascular studies, there is a lack of data comparing the pressor and chronotropic responses among the main stressor tests. Therefore, the aim of this study was to evaluate the variability in hemodynamic responsiveness to the main stressor tests, establish a hyperresponsiveness cutoff criterion and analyz...

This study compared the time to task failure for a submaximal fatiguing contraction in the presence and absence of a cognitive stressor in men and women. In study 1, 10 men and 10 women (22 +/- 3 yr of age) performed an isometric fatiguing contraction at 20% maximal voluntary contraction force until task failure with the elbow flexor muscles during two separate sessions. Subjects performed a me...

This experiment was designed to examine circadian rhythmicity of cortisol in saliva of growing pigs, in relation to age, gender, and (time of) stressor application. Additionally, the acute cortisol response to a stressor was studied. Five groups, each consisting of 3 barrows and 3 gilts, were involved in the experiment. In a Control Group, saliva samples were taken at 1-h intervals at 12, 16, 2...

Watersheds represent spatially explicit areas within which terrestrial stressors can be quantified and linked to measures of aquatic ecosystem condition. We delineated thousands of Great Lakes watersheds using previously proven and new watershed delineation techniques. These were used to provide summaries for a variety of anthropogenic stressors within the Great Lakes. All delineation technique...

In the context of efforts to regulate emotion during chronic stressors, both dispositional response tendencies (affect intensity, negative and positive expressivity) and stressor-related coping through emotional approach (processing and expressing emotions) are relevant to adjustment. In women with metastatic breast cancer (N = 103), contributions of self-reported emotional processing and expre...

This laboratory study examines the unique influences of superordinate personality dimensions perfectionistic concerns and strivings on change in state anxiety elicited by a social-evaluative stressor. A sample 85 adult participants completed perfectionism measures Big Five inventory. The following day, same attended session, during which they were unexpectedly requested to prepare deliver speec...