Theories of stress

THEORIES OF STRESS The take aim adroitness model The prerequisite sagacity model proposed by Karasek (79) focuses on the demands of the working environment, patently is concerned with how job hold back or discretion can moderate the effects of those demands on health lieu ( Jones & Fletcher, 96). Karasek is particularly concerned with how demand/discretion affects the cardiovascular system. The insinuation is that a situation of high demand will condition an increase in blood epinephrine levels, with the subsequent changes in blood pressure and blood lipoid levels. It as tumesce 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 argon high in a condition of low controllability. antic control has similarly a featured as a major dimension of other models. Despite popular predication there has been mixed evidence in su pport of the interactive effects of control and discretion. In a study by Warr et al (90) in their study of 25 year subject field up, reported increased of heart disease with reduced control, merely no association with either demand and heart disease, or an fundamental interaction between demand and control.

Karasek himself has subsequently emphasised the richness 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 special evidence for the role of demands none at all for an interaction effect. Whilst the e! vidence is inconclusive as regards Karasecks model. Carayon (93), set a number of methodological issues with this work. He suggests that most look into contains mutually exclusive effects, and highlights the difficulties in constraining numerous variables. Inconsistencies may also resultant role from a lack of sensitivity of the measures, and the manner in which close latitude, control and discretion are...If you want to get a integral essay, order it on our website: OrderCustomPaper.com

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