College of Nursing, University of Utah, 10 South 2000 East, Salt Lake City, UT 84112-5880, USA.
J Behav Med. 2010 Dec;33(6):423-31. doi: 10.1007/s10865-010-9270-z. Epub 2010 Jun 22.
Social relationships have been shown to predict decreased risk for morbidity and mortality. However, the more precise processes underlying these associations are in need of exploration. In this study, we examined important provider (relationship quality) and recipient-related (support expectations) factors that might influence the effectiveness of receiving support on cardiovascular reactivity (CVR). Participants discussed a stressful event with either a supportive or ambivalent friend, and were either given instructions that included an explicit expectation of support provision or no expectation during the task. Behavioral coding revealed fewer emotionally supportive behaviors and marginally more negative behaviors from ambivalent friends. Receiving support from an ambivalent friend was also associated with higher systolic blood pressure reactivity compared to a supportive friend, but had no effects on diastolic blood pressure or heart rate; nor were there any significant statistical interactions with the expectation manipulation. Overall, support expectations had little influence on cardiovascular and behavioral responses. Implications for the study of received support and health are discussed along with potential mechanisms responsible for such links.
社会关系已被证明可降低发病和死亡率的风险。然而，这些关联背后更精确的过程仍需要探索。在这项研究中，我们研究了可能影响接受支持对心血管反应性（CVR）有效性的重要提供者（关系质量）和接受者相关（支持期望）因素。参与者与支持性或矛盾性的朋友讨论了一件有压力的事情，并在任务期间接受了明确包含支持提供期望或没有期望的指导。行为编码显示，矛盾性朋友表现出的情感支持行为较少，而负面行为略多。与支持性朋友相比，从矛盾性朋友那里获得支持与更高的收缩压反应有关，但对舒张压或心率没有影响；并且与期望操作也没有显著的统计交互作用。总体而言，支持期望对心血管和行为反应的影响很小。本文还讨论了接受支持与健康研究的意义，以及导致这种联系的潜在机制。
