Measuring Fear of Physical Activity in Patients With Heart Failure Using Questionnaires and Physiological Parameters
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Electromyography (EMG) magnitude (in µV) during startle probes
研究概览
简要总结
The study's aims are twofold: First, to examine physiological correlates of fear of physical activity (PA) and second, to examine correlates between fear of PA and interoceptive abilities in patients with chronic heart failure and healthy persons. Patients' fear of PA will be assessed via the "Fear of Activity in Situations - Heart Failure" (FActS-HF) questionnaire. The patient group will be split into two subgroups: One with high fear of PA and the second with low fear of PA based on FActS-HF scores. Fear of PA will be assessed via an adapted version of FActS-HF in a sample of healthy persons (control group). Each member of the high-fear-of-PA group will be individually age- and sex-matched with one member of the low-fear-of-PA group and control group. The participants of all three groups undergo the same experimental trials.
Aim 1: The "startle paradigm" will be used to investigate the physiological component of fear of PA. The startle paradigm is based on empirical observations that the startle reflex is larger after the priming with unpleasant stimuli and inhibited after the priming with pleasant stimuli. The participants will be primed with various words including those words associated with physical activity that are expected to be unpleasant in patients with high fear of PA. The startle reflex will be triggered by air puffs on the eyes (startle probes) and measured via facial electromyography (EMG). We assume that startle responses primed with PA related words are stronger in patients with high fear of PA compared to the other groups.
Aim 2: Interoceptive accuracy will be assessed via the "Schandry test" and interoceptive awareness will be assessed via the "Multidimensional Assessment of Interoceptive Awareness" (MAIA) questionnaire. During the Schandry test the participants will be instructed to subjectively count their heart rate without any aid or tools. The heart rate will be objectively measured at the same time via ECG. A high congruence of the objective and subjective results indicates a high interoception ability, and is assumed to be correlated with fear of physical activity. Additionally, we expect the MAIA and FActS scores to be correlated.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 50 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Clinical diagnosis of Heart Failure stage B or C (Hunt et al., 2005), or: New York Heart Failure classification II to IIIb
- •Systolic dysfunction: left ventricular ejection fraction < 45% in the last 6 month
- •Diastolic dysfunction: left ventricular ejection fraction >= 45% in the last 6 month
排除标准
- •complex ventricular arrhythmias
- •acute myocarditis
- •symptomatic cardiac valve stenosis
- •instable angina pectoris
- •other severe diseases, that impair physical activity (e.g. advanced stages of cancer)
- •insufficient language skills in German to answer the questionnaires
- •insufficient cognitive skills to answer the questionnaires
结局指标
主要结局
Electromyography (EMG) magnitude (in µV) during startle probes
时间窗: 30 minutes, one time point
The startle reflex will be triggered by air puffs (startle probes) and its modulation in response to a set of verbal stimuli related to physical activity will be measured with the EMG during a time window of 30 minutes. Thereby physiological (EMG magnitude) correlates of fear of physical activity will be assessed.
Electrocardiography (ECG) measures of interbeat intervals and subjective counts of heart beats
时间窗: 10 minutes, one time point
Interoceptive accuracy will be assessed as the congruence of subjective heart beat counts and objectively measured ECG interbeat intervals (Schandry test) during specified time intervals.
次要结局
- Scores on the Multidimensional Assessment of Interoceptive Awareness (MAIA) scale(5 minutes, one time point)
研究者
Prof. Dr. Heike Spaderna
Professor of Health Psychology
University of Trier