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Abstract Outdoor adventure challenges are commonly used to enhance self‐efficacy, but the physiological mechanisms involved remain unexplored. Additionally, while studies have documented the influence of self‐efficacy on stress management, general self‐efficacy has yet to be fully understood in the context of cardiovascular stress reactivity (CVR). This study investigated the influence of self‐efficacy beliefs on CVR during acute psychological stress tasks. Additionally, it explored whether CVR serves as a novel mechanism underlying the outcomes of outdoor adventure challenges. As part of a wider randomized controlled trial, participants ( n = 55) were invited to complete a laboratory session to assess CVR to an active (paced auditory serial addition test (PASAT)) and a passive (cold pressor test (CPT)) stress task. Randomized participants ( n = 33) to the experimental condition also engaged in a high ropes challenge course after the laboratory session. It was found that greater self‐reported self‐efficacy was associated with larger CVR during the CPT and positively associated with perceived engagement and performance during the PASAT. Secondly, participants reporting positive change in self‐efficacy post‐intervention were associated with greater CVR and greater CVR was associated with higher ratings of intervention engagement and perceived challenge. This study provides preliminary evidence suggesting that greater efficacy beliefs may heighten CVR to passive acute psychological stressors. Habitual stress reactivity may represent a novel mechanism involved in outdoor and adventure‐based interventions. Future research should continue to explore the impact of psychological variables on stress physiology and examine CVR as a potential mechanism in adventure experiences.
Tyne et al. (Thu,) studied this question.