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Effort-reward-imbalance and overcommitment are associated with hypothalamus-pituitary-adrenal (HPA) axis responses to acute psychosocial stress in healthy working schoolteachers.
Psychoneuroendocrinology 2008; 33(10):1335-43P

Abstract

In this study, we examined HPA axis responses to acute psychosocial stress in relation to effort-reward-imbalance (ERI) and overcommitment (OC) to test whether chronic stress at work is accompanied by altered HPA axis stress responses in teachers. According to Siegrist's work stress model, ERI reflects stress due to a lack of reciprocity between personal costs and gains at work, whereas OC is conceptualized as a personality trait mainly characterized by the inability to withdraw from work obligations. Fifty-three medication-free, non-smoking, healthy teachers (33 women, 20 men, 29-63 years, mean age 49.9+/-8.58 years) were confronted with the Trier Social Stress Test (TSST), a widely used standardized stress protocol to induce acute psychosocial stress in the laboratory. ACTH (five samples), total plasma (six samples) and free salivary cortisol (eight samples) were repeatedly measured before and after challenge. In the total group, ERI and OC were only marginally associated with HPA axis responses to acute stress. However, in the subgroup of responders (N=30) high levels of OC were significantly associated with lower ACTH (p=0.03) as well as plasma (p=0.02) and salivary cortisol (p<0.001) responses and results remained significant controlling for depressive symptoms. When additionally controlling for acute perceived stressfulness of the TSST, significant associations between OC and HPA axis responses emerged in responders as well as the total study sample. In respect to ERI, higher stress levels were solely related to significantly stronger plasma cortisol increases after TSST exposure, but this effect became non-significant controlling for depressive symptomatology. In sum, our findings support the notion of HPA axis hyporeactivity in highly overcommitted schoolteachers.

Authors+Show Affiliations

Jacobs Center on Lifelong Learning and Institutional Development, Jacobs University Bremen, Campus Ring 1, 28759 Bremen, Germany.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18774231

Citation

Bellingrath, Silja, and Brigitte M. Kudielka. "Effort-reward-imbalance and Overcommitment Are Associated With Hypothalamus-pituitary-adrenal (HPA) Axis Responses to Acute Psychosocial Stress in Healthy Working Schoolteachers." Psychoneuroendocrinology, vol. 33, no. 10, 2008, pp. 1335-43.
Bellingrath S, Kudielka BM. Effort-reward-imbalance and overcommitment are associated with hypothalamus-pituitary-adrenal (HPA) axis responses to acute psychosocial stress in healthy working schoolteachers. Psychoneuroendocrinology. 2008;33(10):1335-43.
Bellingrath, S., & Kudielka, B. M. (2008). Effort-reward-imbalance and overcommitment are associated with hypothalamus-pituitary-adrenal (HPA) axis responses to acute psychosocial stress in healthy working schoolteachers. Psychoneuroendocrinology, 33(10), pp. 1335-43. doi:10.1016/j.psyneuen.2008.07.008.
Bellingrath S, Kudielka BM. Effort-reward-imbalance and Overcommitment Are Associated With Hypothalamus-pituitary-adrenal (HPA) Axis Responses to Acute Psychosocial Stress in Healthy Working Schoolteachers. Psychoneuroendocrinology. 2008;33(10):1335-43. PubMed PMID: 18774231.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effort-reward-imbalance and overcommitment are associated with hypothalamus-pituitary-adrenal (HPA) axis responses to acute psychosocial stress in healthy working schoolteachers. AU - Bellingrath,Silja, AU - Kudielka,Brigitte M, Y1 - 2008/09/05/ PY - 2008/03/28/received PY - 2008/07/16/revised PY - 2008/07/26/accepted PY - 2008/9/9/pubmed PY - 2009/2/7/medline PY - 2008/9/9/entrez SP - 1335 EP - 43 JF - Psychoneuroendocrinology JO - Psychoneuroendocrinology VL - 33 IS - 10 N2 - In this study, we examined HPA axis responses to acute psychosocial stress in relation to effort-reward-imbalance (ERI) and overcommitment (OC) to test whether chronic stress at work is accompanied by altered HPA axis stress responses in teachers. According to Siegrist's work stress model, ERI reflects stress due to a lack of reciprocity between personal costs and gains at work, whereas OC is conceptualized as a personality trait mainly characterized by the inability to withdraw from work obligations. Fifty-three medication-free, non-smoking, healthy teachers (33 women, 20 men, 29-63 years, mean age 49.9+/-8.58 years) were confronted with the Trier Social Stress Test (TSST), a widely used standardized stress protocol to induce acute psychosocial stress in the laboratory. ACTH (five samples), total plasma (six samples) and free salivary cortisol (eight samples) were repeatedly measured before and after challenge. In the total group, ERI and OC were only marginally associated with HPA axis responses to acute stress. However, in the subgroup of responders (N=30) high levels of OC were significantly associated with lower ACTH (p=0.03) as well as plasma (p=0.02) and salivary cortisol (p<0.001) responses and results remained significant controlling for depressive symptoms. When additionally controlling for acute perceived stressfulness of the TSST, significant associations between OC and HPA axis responses emerged in responders as well as the total study sample. In respect to ERI, higher stress levels were solely related to significantly stronger plasma cortisol increases after TSST exposure, but this effect became non-significant controlling for depressive symptomatology. In sum, our findings support the notion of HPA axis hyporeactivity in highly overcommitted schoolteachers. SN - 0306-4530 UR - https://www.unboundmedicine.com/medline/citation/18774231/Effort_reward_imbalance_and_overcommitment_are_associated_with_hypothalamus_pituitary_adrenal__HPA__axis_responses_to_acute_psychosocial_stress_in_healthy_working_schoolteachers_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0306-4530(08)00185-6 DB - PRIME DP - Unbound Medicine ER -