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Related Experiment Videos

Cardiorespiratory symptoms in response to physiological arousal

A J Barsky1, J E Orav, B A Delamater

  • 1Division of Psychiatry, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.

Psychosomatic Medicine
|October 17, 1998
PubMed
Summary

Anxiety and stress amplify somatic symptoms during exercise. Patients experiencing higher anxiety and stress report more intense cardiopulmonary symptoms and have a lower threshold for discomfort.

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Area of Science:

  • Cardiology
  • Psychosomatic Medicine
  • Exercise Physiology

Background:

  • Assessing somatic symptom amplification and bodily distress is crucial for understanding patient experiences.
  • Existing methods may not adequately capture the dynamic relationship between physiological arousal and symptom reporting.

Purpose of the Study:

  • To develop and validate a laboratory paradigm for quantifying somatic symptom amplification.
  • To investigate the relationship between psychological factors (anxiety, stress) and symptom reporting during standardized exercise.

Main Methods:

  • Developed a treadmill exercise protocol to measure cardiopulmonary symptoms and physiological parameters simultaneously.
  • Created two indices: symptom severity at 80% maximal exercise capacity and the physiological arousal threshold for initial discomfort.

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Main Results:

  • Symptom distress at 80% maximal exercise capacity correlated with state anxiety and daily life stress.
  • Older, more anxious patients with higher stress reported "heart racing" at lower heart rates.
  • Hypochondriasis, somatization, and bodily amplification measures were not significantly associated with symptom reporting.

Conclusions:

  • Standardized exercise testing offers a viable paradigm for studying symptom amplification and somatization.
  • Distress at standardized exercise levels can index discomfort from a stimulus; onset of discomfort may reflect the symptomatic threshold.
  • Anxiety and stress appear to influence the intensity and threshold of cardiopulmonary symptom reporting during physiological arousal.