Theories of stress

THEORIES OF STRESS The take aim adroitness model The requisite caution model proposed by Karasek (79) focuses on the demands of the working environment, only is concerned with how job hold back or discretion can moderate the effects of those demands on health posture ( Jones & Fletcher, 96). Karasek is particularly concerned with how demand/discretion affects the cardiovascular system. The mite is that a situation of high demand will clear an increase in blood epinephrine levels, with the subsequent changes in blood pressure and blood lipoid levels. It as comfortably appears that low discretion or control is associated with change order levels of the stress hormone cortiisol. Therefore, the worst combination for health is when the demands are high in a condition of low controllability. enjoyment control has similarly a featured as a major dimension of other models. Despite popular petition there has been mixed evidence in support of the reciprocal effects of control and discretion. In a study by Warr et al (90) in their study of 25 year visual modality up, reported increased of heart disease with reduced control, tho no association with either demand and heart disease, or an interaction between demand and control.

Karasek himself has subsequently emphasised the grandness of control alone, especi onlyy in white collar workers. In a meta analysis study, showed the importance of job control as a predictor of chronic heart disease. This analysis also showed modified evidence for the role of demands none at all for an interaction eff ect. Whilst the evidence is inconclusiv! e as regards Karasecks model. Carayon (93), set a number of methodological issues with this work. He suggests that most look into contains at odds(p) effects, and highlights the difficulties in constraining numerous variables. Inconsistencies may also resolvent from a lack of sensitivity of the measures, and the manner in which ending latitude, control and discretion are...If you want to get a full phase of the moon essay, order it on our website: OrderCustomPaper.com

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