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Effects of Combined Thoracic and Diaphragmatic Breathing on Cognitive and Psycho-Physiological Functions

NCT07620249 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2026-06-02

No results posted yet for this study

Summary

This study aims to investigate the effects of a combined thoracic expansion exercise (TEE) and slow diaphragmatic breathing (SDB) program on cognitive function, brain activation, psychological status, and head-shoulder posture in healthy young adults.

Conditions

  • Diaphragm Pacing

Interventions

OTHER

thoracic expansion exercises and slow diaphragmatic breathing

4-week supervised training program, consisting of three 30-minute sessions per week. Thoracic expansion exercises consists of chest wall stretching and mobility drills. Followed by 15 minutes of progressive slow diaphragmatic breathing (4-s inhalation/6-s exhalation).

OTHER

Sham Block

During sham TEE, participants perform comfortable thoracic movements without foam rollers or specific breathing coordination. During sham SDB, they maintain a spontaneous, natural respiratory rhythm in relaxed postures. Crucially, the sham protocol lacks the rhythmic pacing (4:6s), diaphragmatic depth cues, and resistance-based progression required to trigger the neuro-cognitive "respiratory-brain" axis.

Sponsors & Collaborators

  • National Taiwan University Clinical Trial Center

    lead OTHER

Principal Investigators

  • Yan Ci Liu · School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-05-25
Primary Completion
2027-02-01
Completion
2027-02-01

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07620249 on ClinicalTrials.gov