Theories of stress

THEORIES OF STRESS The take aim adroitness model The submit courtesy 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 emplacement ( Jones & Fletcher, 96). Karasek is particularly concerned with how demand/discretion affects the cardiovascular system. The suggestion is that a situation of high demand will generate an increase in blood epinephrine levels, with the subsequent changes in blood pressure and blood lipoid levels. It as wholesome 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. runaway control has similarly a featured as a major dimension of other models. Despite popular entreat there has been mixed evidence in support of the interactive effects of control and discretion. In a study by Warr et al (90) in their study of 25 year assess up, reported increased of heart disease with reduced control, entirely no association with either demand and heart disease, or an interaction between demand and control.

Karasek himself has subsequently emphasised the mellowness 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 effect. Whilst the evidence is inconclu! sive as regards Karasecks model. Carayon (93), set a number of methodological issues with this work. He suggests that most look into contains confounding effects, and highlights the difficulties in constraining numerous variables. Inconsistencies may also expiration from a lack of sensitivity of the measures, and the manner in which finis latitude, control and discretion are...If you want to get a sufficient essay, order it on our website: OrderCustomPaper.com

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