Effect of Diaphragmatic Breathing Exercise on Cardiovascular Parameters Following Noise Exposure in Pre Hypertensive Adults

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Amira Mohamed Afify


noise, hypertension, blood pressure, heart rate


Objective: To explore immediate effects of breathing exercises on blood pressure; systolic (SBP) and diastolic (DBP), and heart rate (HR) of pre-hypertensive subjects after exposure to high tempo music at relatively high exposure intensity (90-dB intensity).
Methods: Thirty pre- hypertensive subjects participated. Participants were recruited from October 6 University hospital outpatients clinics, ages ranged between 30-40 years. Participants assigned into 2 groups at random; exercises and control groups. Participants were exposed to 90 dB sound for 15 minutes. Blood pressure and heart rate were measured at baseline, immediately after exposure, 5, 10, and 15 minutes post exposure. Exercises group received breathing exercises between each 2 successive measures starting at immediate post exposure and later
Results: Significant lowering of SBP, and DBP in breathing exercises group in comparison to control at 10 minutes and 15 minutes’ evaluations. SBP in exercises group reached earlier to baseline means at 15 minutes evaluation, while DBP in exercises group did not reached baseline till the end of evaluations. Albeit, DBP were significantly lower than control at 10 minutes and 15 minutes evaluations. Heart rate means were non- significantly different between groups throughout all evaluations. Further, both groups reached baseline HR means at the 15 minutes evaluation.
Conclusion: Breathing exercises is helpful in controlling increment of SBP and DBP following acute exposure to noise. Further, it helps to restore baseline SBP pressure earlier than controls in pre-hypertensive participants.

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