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The immediate effect of forced deep breathing cycles exercise on cardiopulmonary performance, autonomic activity and sleep quality in healthy subjects.

The acute effect of forced deep breathing cycles exercise on cardiopulmonary performance, autonomic activity and sleep quality in healthy subjects.

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
TCTR
Registry ID
TCTR20200715004
Enrollment
40
Registered
2020-07-15
Start date
2020-05-01
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy human volunteers

Interventions

subjects were instructed to take forced deep breaths at rates of 15&#44
and 3 breaths/min consecutively. Subjects inspired or expired air as fast as possible during the inspiration or expiration phase and held maximum inspiration or expiration for 2 sec (15 bpm)&#44
6 sec (5 bpm)&#44
and 10 sec (3 bpm) until the commencement of the inspiration or expiration phase.,Subjects were instructed to take deep breath without forced. N&#45
FDBC contains three phase 15&#44
and 3 bpm. Inspiration and expiration alternated every 2 sec at 15 bpm&#44
6 sec at 5 bpm&#44
and10 sec at 3 bpm respectively for three breath cycles. ,Breathing gently&#44
using the least effort&#44
focusing on breathing muscles such as the diaphragm muscle&#44
and put one hand on the chest and the other on the abdomen. Subjects performed by slowly breathe in through the nose&#44
with mouth closed&#44
breathe out through the mouth&#44
for 3 minutes per cycle.
Forced deep breathing cycles ,Non&#45
forced deep breathing cycle,Breathing control exercise program

Sponsors

Chulalongkorn University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 24 Years

Inclusion criteria

Inclusion criteria: 1.Healthy subject. 2.No medical history. 3.No smoking or substance abuse 4.Not taking medication or supplements

Exclusion criteria

Exclusion criteria: 1.Fever 2.Have a history of respiratory diseases, heart and blood circulation and sleep autoimmune condition and systemic infection 3.There are contraindications for the cardiopulmonary tests.

Design outcomes

Primary

MeasureTime frame
Sleep quality During sleep Smartwatch detect Sleep quality (%)

Secondary

MeasureTime frame
Heart rate During sleep Smartwatch detect heart rate (beats per minute)

Countries

Thailand

Contacts

Public ContactJirawat Wattanapanyawech

Chulalongkorn University

Jirawat.W@chula.ac.th022181593

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026