NCT07455968

Free Diving Breathing Training in Allergic Rhinitis

Effects of Free Diving Breathing Training on Symptoms in Patients With Allergic Rhinitis

• Status: Active Not Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 30 (estimated)
• Sponsor: Chulalongkorn University · Academic / Other
• Sex: All
• Age: 18 Years – 35 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study was to investigate the effects of diver-style breathing training on symptoms, pulmonary function, and respiratory muscle, in patients with allergic rhinitis.

Detailed description

This study aims to investigate the effects of diver-style breathing training in patients with allergic rhinitis. A total of 30 patients aged 18-35 years were recruited from students and staff of Chulalongkorn University, as well as patients attending the Chulalongkorn University Health Service Center and King Chulalongkorn Memorial Hospital. Participants were randomly assigned into two groups: an experimental group (n = 15) that received diver-style breathing training and a control group (n = 15) that continued their usual daily activities without any exercise intervention. The independent variable was diver-style breathing training. The dependent variables included rhinitis symptom outcomes (symptom scores, Peak Nasal Inspiratory Flow, nasal blood flow, and Fractional Exhaled Nitric Oxide), pulmonary function parameters (FVC, FEV1, FEV1/FVC, FEF25-75%, MVV, and breath-holding time), and respiratory muscle strength (MIP and MEP).

Conditions

• Allergic Rhinitis

Interventions

Type	Name	Description
OTHER	Free diving breathing training	The diver-style breathing training program lasts 40 minutes per session. Participants sit upright with proper posture and begin with 5 minutes of normal breathing. They then perform a progressive deep inhalation technique: inhaling through the nose to expand the abdomen, continuing to expand the chest, and finally inhaling further until a sensation of throat tightness is felt. The breath is then held for at least 20 seconds or as long as possible before exhaling through the mouth. Each cycle counts as one round, and participants aim to gradually increase their breath-holding duration over 30 minutes. The session ends with 5 minutes of normal breathing.

Timeline

• Start date: 2025-08-01
• Primary completion: 2026-03-30
• Completion: 2026-03-30
• First posted: 2026-03-06
• Last updated: 2026-03-06

Locations

1 site across 1 country: Thailand