Acute Effects of Spontaneous Slow Breathing and Prohibition of Media Device use on Cardiac Autonomic Function and Blood Pressure During Sleep in Young Men

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Ryota Kobayashi
Ryota Kobayashi
2
Hideyuki Negoro
Hideyuki Negoro

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GJMR Volume 23 Issue F7

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Blood pressure (BP) during sleep is a risk factor for cardiovascular disease. Poor sleep quality leads to hypertension. Sleep quality decreases with media device use and increases with deep breathing. Our objective was to examine the acute effects of slow breathing and refraining from using media devices on cardiac autonomic function and blood pressure during sleep. Fifteen healthy male participants were randomly assigned to one of three conditions: (a) slow breathing (BT) condition (12 consecutive breaths of 4 s of inhalation through the nose, 4 s pause, and 8 s of exhalation, approximately 3 min per breath), (b) a BT condition (BT+Non-LED) in which slow breathing was performed and the use of light-emitting devices (LED; smartphones, tablets, computers, etc.) was prohibited 1 hr before bedtime, and (c) a control condition (CON) in which slow breathing was not performed, and the use of LED was permitted. Blood pressure was measured by oscillometric method at baseline and 2 and 4 o’clock at bedtime. Autonomic function was measured by heart rate variability for 24 hours.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

Ryota Kobayashi. 2026. \u201cAcute Effects of Spontaneous Slow Breathing and Prohibition of Media Device use on Cardiac Autonomic Function and Blood Pressure During Sleep in Young Men\u201d. Global Journal of Medical Research - F: Diseases GJMR-F Volume 23 (GJMR Volume 23 Issue F7): .

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High-quality alt: Study on the effects of slow breathing on blood pressure and sleep in young men.
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Crossref Journal DOI 10.17406/gjmra

Print ISSN 0975-5888

e-ISSN 2249-4618

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GJMR-F Classification: NLM: WG100
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v1.2

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September 25, 2023

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English

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Blood pressure (BP) during sleep is a risk factor for cardiovascular disease. Poor sleep quality leads to hypertension. Sleep quality decreases with media device use and increases with deep breathing. Our objective was to examine the acute effects of slow breathing and refraining from using media devices on cardiac autonomic function and blood pressure during sleep. Fifteen healthy male participants were randomly assigned to one of three conditions: (a) slow breathing (BT) condition (12 consecutive breaths of 4 s of inhalation through the nose, 4 s pause, and 8 s of exhalation, approximately 3 min per breath), (b) a BT condition (BT+Non-LED) in which slow breathing was performed and the use of light-emitting devices (LED; smartphones, tablets, computers, etc.) was prohibited 1 hr before bedtime, and (c) a control condition (CON) in which slow breathing was not performed, and the use of LED was permitted. Blood pressure was measured by oscillometric method at baseline and 2 and 4 o’clock at bedtime. Autonomic function was measured by heart rate variability for 24 hours.

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Acute Effects of Spontaneous Slow Breathing and Prohibition of Media Device use on Cardiac Autonomic Function and Blood Pressure During Sleep in Young Men

Ryota Kobayashi
Ryota Kobayashi
Hideyuki Negoro
Hideyuki Negoro

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