Analysis of Predictors of Stress Reactions in Medical Students During Simulation-Based Training
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 150
- 试验地点
- 1
- 主要终点
- Change in heart rate variability (HRV) using HR band Polar H10
研究概览
简要总结
In this study, researchers will examine key predictors of stress reactions in medical students participating in simulation-based communication training. By using psychometric questionnaires and physiological measurements, the study will assess how psychological traits, resilience, and self-efficacy impact stress responses during simulated patient interactions. These simulations use live actors to portray emotionally challenging scenarios, such as communicating with anxious or aggressive patients. The results aim to identify factors that contribute to heightened stress, ultimately guiding the development of targeted stress-management strategies to improve students' readiness for real-world clinical settings.
详细描述
Aims of the Study and Main Hypotheses
The primary aim of the study is to identify key predictors of stress responses in third-year medical students during simulation-based communication training. In this context, "stress" is operationalized both through continuous physiological measurements-principally heart rate variability (HRV) recorded via Polar chest bands-and through a battery of psychometric assessments. The study is designed to evaluate:
Primary Aim:
To determine the predictive value of psychological traits (e.g., resilience, self-efficacy) on physiological stress markers (e.g., HRV stability) and subjective stress ratings during high-fidelity patient interactions with live actors.
Hypothesis: Students exhibiting higher levels of resilience and self-efficacy will demonstrate lower physiological stress responses (i.e., more stable HRV) and report lower subjective stress.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Change in heart rate variability (HRV) using HR band Polar H10
时间窗: 2,5 hours during each simulation
The primary outcome is the change in physiological stress markers, specifically heart rate variability (HRV), measured continuously during each simulation scenario. This measure assesses the immediate physiological response to stress-inducing patient interactions.The obtained data will be processed using time-domain HRV parameters - RMSSD, SDNN, pNN50 and Power Spectrum density HRV parameters - LF power, HF power, and LF/HF ratio.
State-Trait Anxiety Inventory X-II
时间窗: 2 days before first simulation
For measuring anxiety, the State-Trait Anxiety Inventory was used, which assesses both the temporary state of anxiety (state anxiety, STAI X-I) and the long-term trait anxiety (STAI X-II). In this study, the focus was placed on the STAI X-II section, which contains 20 items (items 21 to 40). Respondents rate their answers on a scale from 1 ("almost never") to 4 ("almost always"). During scoring, some items are reverse-scored, and the total score is obtained by summing all responses, with a higher score indicating a higher level of trait anxiety.
Affective Circumplex
时间窗: 5 minutes before the simulation
The Affective Circumplex is a questionnaire designed to subjectively assess emotions and self-confidence in the context of a simulation. Within this tool, respondents rate their level of competence - between the poles of "I feel competent" (have the knowledge and skills necessary for the simulation) and "I do not feel competent" (do not have the knowledge and skills necessary for the simulation). The questionnaire also includes an assessment of current emotional state, with participants choosing between the poles of "uncomfortable" and "pleasant" and between the poles of "calm" and "upset". Next, respondents rate their sense of control over their emotions, and are asked to express whether they are in control of their emotions or whether they are losing control. Finally, participants are asked to verbally express their current emotion - in one word or a short sentence, for example, "sadness", "shame" or "joy".
NASA Task Load Index (NASA-TLX)
时间窗: 5 minutes after the simulation
The NASA Task Load Index (NASA-TLX) is a tool to subjectively assess cognitive and emotional load during a simulation. Students rate six dimensions: mental and physical demands, time pressure, performance, effort, and frustration. Each dimension is assessed on a scale of 0-100, where a higher value indicates a higher burden. The NASA-TLX total score can be calculated as the average of all dimensions or using weighted scoring. This tool helps to compare students' subjective stress with objective physiological indicators of stress.
次要结局
- Toronto Empathy Questionnaire(2 days before first simulation)
- General Self-Efficacy Scale (GSE)(2 days before first simulation)
- The Brief Resilience Scale(2 days before first simulation)
- Perceived Stress Scale (PSS)(2 days before first simulation)
- The Big Five Inventory-10 (BFI-10)(2 days before first simulation)
- Rosenberg Self-Evaluation Scale (RSES)(2 days before first simulation)
研究者
Miroslav Světlák
Department head (Department of Medical Psychology and Ethics)
Masaryk University