Effects of Applied Muscle Tension to Reduce Syncope and Vasovagal Symptoms
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Date
2023-12
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The Ohio State University
Abstract
Applied muscle tension is recommended for reducing or preventing vasovagal symptoms. Recent literature has investigated the role of respiration in the reduction of syncope and vasovagal symptoms, but there is still a need to determine the specific muscle groups that achieve the greatest effect. Thus, the present pilot study sought to examine the role of respiration, specifically whether the use of core muscles during applied muscle tension influences respiration. Participants were 15 undergraduate students randomly assigned to one of three groups (applied muscle tension with core engagement, applied muscle tension without core engagement, or a distraction-control group) and were equipped with physiological monitoring equipment while undergoing a simulated blood draw. Results indicated that significant effects were present over time for end-tidal carbon dioxide, respiration rate, systolic and diastolic blood pressure. No group differences were present. Results also indicated that 80% of participants reported having at least some fear of having blood drawn, and a trend was present for fear predicting vasovagal symptoms.
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Keywords
Applied Muscle Tension, Vasovagal Symptoms, Fear, Syncope, Respiration