دورية أكاديمية
Resting vagal control and resilience as predictors of cardiovascular allostasis in peacekeepers.
| العنوان: | Resting vagal control and resilience as predictors of cardiovascular allostasis in peacekeepers. |
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| المؤلفون: | Souza GG; Departamento de Ciências Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil. souzaggl@gmail.com, Magalhães LN, Cruz TA, Mendonça-De-Souza AC, Duarte AF, Fischer NL, Souza WF, Coutinho Eda S, Vila J, Gleiser S, Figueira I, Volchan E |
| المصدر: | Stress (Amsterdam, Netherlands) [Stress] 2013 Jul; Vol. 16 (4), pp. 377-83. Date of Electronic Publication: 2013 Feb 25. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Informa Healthcare Country of Publication: England NLM ID: 9617529 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1607-8888 (Electronic) Linking ISSN: 10253890 NLM ISO Abbreviation: Stress Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: London : Informa Healthcare Original Publication: [Amsterdam?] : Harwood Academic Publishers, |
| مواضيع طبية MeSH: | Cardiovascular Physiological Phenomena* , Resilience, Psychological*, Allostasis/*physiology , Military Personnel/*psychology , Stress, Psychological/*physiopathology, Adult ; Brazil/ethnology ; Haiti ; Heart Rate/physiology ; Humans ; Male ; Vagus Nerve/physiology |
| مستخلص: | The body's adaptive reaction to a stressful event, an allostatic response, involves vigorous physiological engagement with and efficient recovery from stress. Our aim was to investigate the influence of individual predispositions on cardiac responses to and recovery from a standardized psychosocial stress task (Trier Social Stress Task) in peacekeepers. We hypothesized that those individuals with higher trait resilience and those with higher resting vagal control would be more likely to present an allostatic response: a vigorous cardiac response to stress (i.e., reduction in interbeat intervals and heart rate variability (HRV)) coupled with a significant cardiac recovery in the aftermath. Fifty male military personnel with a mean age of 25.4 years (SD ± 5.99) were evaluated after returning from a peacekeeping mission. Electrocardiogram recordings were made throughout the experimental session, which consisted five conditions: basal, speech preparation, speech delivery, arithmetic task, and recovery. Mean interbeat intervals and HRV were calculated for each condition. An Ego-Resilience Scale and resting vagal control assessed individual predispositions. Stress tasks reduced interbeat intervals (tachycardia) and HRV in comparison with basal, with return to basal in the aftermath (p < 0.001, for all comparisons). Resilience and resting vagal control correlated positively with cardiac parameters for both stress reactivity and recovery (r ≥ 0.29; p < 0.05). In conclusion, peacekeepers showing higher trait resilience and those with higher resting vagal control presented a more adaptive allostatic reaction characterized by vigorous cardiac response to stress (i.e., tachycardia and vagal withdrawal) and efficient cardiac recovery after stress cessation. |
| تواريخ الأحداث: | Date Created: 20130119 Date Completed: 20140121 Latest Revision: 20130617 |
| رمز التحديث: | 20240829 |
| DOI: | 10.3109/10253890.2013.767326 |
| PMID: | 23327672 |
| قاعدة البيانات: | MEDLINE |
PDF full text from Publisher | تدمد: | 1607-8888 |
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| DOI: | 10.3109/10253890.2013.767326 |