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ClinicalTrials.gov public records Last synced Nov 15, 2026, 1:10 AM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–35 of 35 matching trials from the live ClinicalTrials.gov search.

Filters: Intervention: Standard abdominal breathing Clear all

Conditions: Anesthesia and Analgesia
Interventions: Diaphragmatic Breathing; Behavioral
Lead sponsor: University of Southern California; Other
Eligibility: 50 Years to 90 Years
Enrollment: 50 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024
U.S. locations: 1
States / cities: Los Angeles, California

Conditions: Surgery
Interventions: Esophageal pressure measurement guided ventilation; Other
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 50 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2018 – 2022
U.S. locations: 1
States / cities: Rochester, Minnesota

Conditions: Low Back Pain, Neck Pain
Interventions: Engagement of clinic leadership (System Intervention - Usual Care), Engagement of clinic leadership (System Intervention - STEPPT), Patient Registry (System Intervention - STEPPT), Delivery of Patient Education Materials (System Intervention - Usual Care), Delivery of Patient Education Materials (System Intervention - STEPPT), Referral Specialist Training (System Intervention - Usual Care), Patient Health Navigator Training (System Intervention - STEPPT), Care Navigation (System Intervention - STEPPT), Care navigation audit and feedback (System Intervention - STEPPT), Primary Care Provider training (Provider Intervention - STEPPT), Nurse/Medical Assistant Training (Provider Intervention - STEPPT), Provider feedback on PT referral and adherence (Provider Intervention - STEPPT), Patient education on spine pain condition (Patient Intervention - Usual Care), Patient education on spine pain condition (Patient Intervention - STEPPT), Patient Education on Physical Referral by Providers (Patient Intervention - Usual Care), Patient Education on Physical Referral by Providers (Patient Intervention - STEPPT), Electronic Patient Education on Physical Therapy Referral (Patient Intervention - STEPPT), Patient education on physical therapy referral by Referral Specialist (Patient Intervention - Usual Care), Patient education on physical therapy referral by Patient Health Navigator (Patient Intervention - STEPPT), Care Navigation (System Intervention - Usual Care), Monitoring of PT referral and adherence rates (System Intervention - STEPPT), Monitoring of PT referral and adherence rates (System intervention - Usual Care); Behavioral
Lead sponsor: San Diego State University; Other
Eligibility: 18 Years and older
Enrollment: 17,587 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2029
U.S. locations: 1
States / cities: San Diego, California

Conditions: GERD
Interventions: Diaphragmatic Breathing, Sham Comparator; Behavioral
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 60 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2017 – 2020
U.S. locations: 1
States / cities: Rochester, Minnesota

Conditions: GERD
Interventions: Diaphragm Training; Behavioral
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 192 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2019 – 2022
U.S. locations: 1
States / cities: Jacksonville, Florida

Conditions: Stress (Psychology), Resilience, Psychological, Anxiety, Depressive Symptoms, Well-being, Sleep Quality
Interventions: Wearable ring with continuous biometric monitoring, AI health coaching application, Osteopathic manipulative treatment (OMT); Device · Behavioral · Other
Lead sponsor: Touro University, California; Other
Eligibility: 18 Years and older
Enrollment: 43 participants
Healthy volunteers: Accepts healthy volunteers
Timeline: 2024 – 2026
U.S. locations: 1
States / cities: Vallejo, California

Conditions: Obesity, Morbid, Ventilator-Induced Lung Injury, Respiratory Failure
Interventions: Esophageal balloon, Intervention Spontaneous Breathing Trial (SBT) and Extubation, Control Spontaneous Breathing Trial and Extubation, Intervention Weaning after Tracheostomy, Control Weaning after Tracheostomy; Device · Procedure
Lead sponsor: University of North Carolina, Chapel Hill; Other
Eligibility: 18 Years and older
Enrollment: 6 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2022
U.S. locations: 2
States / cities: Chapel Hill, North Carolina • Greenville, North Carolina

Conditions: Constipation, Constipation by Outlet Obstruction, Constipation-predominant Irritable Bowel Syndrome, Constipation - Functional
Interventions: Standard Physical Therapy Care, Aerobic and Inspiratory Muscle Training; Other
Lead sponsor: University of Miami; Other
Eligibility: 18 Years and older
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2023
U.S. locations: 1
States / cities: Coral Gables, Florida

Conditions: Marijuana Use
Interventions: Brief Motivational Intervention (BMI), Substance-Free Activity Session (SFAS), Relaxation Session; Behavioral
Lead sponsor: University of Memphis; Other
Eligibility: 18 Years and older
Enrollment: 133 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2014 – 2016
U.S. locations: 1
States / cities: Memphis, Tennessee

Conditions: Laryngeal/Pharyngeal Reflux (LPR)
Interventions: Standard abdominal breathing, Resisted Exercise; Other
Lead sponsor: Mayo Clinic; Other
Eligibility: 18 Years and older
Enrollment: 69 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2025
U.S. locations: 1
States / cities: Jacksonville, Florida

Conditions: Respiratory Distress Syndrome, Adult, Ventilator-Induced Lung Injury, Neurocognitive Dysfunction, Quality of Life, Respiration Disorders
Interventions: Ventilation Inhomogeneity, Diaphragm Ultrasound, Respiratory Inductance Plethysmography, Spirometry, Functional Residual Capacity, MIP/MEP, 6 minute walk test, Neurocognitive Testing, Emotional Health Assessment, Health Related Quality of Life, Functional Status, Respiratory Status Questionnaire; Diagnostic Test
Lead sponsor: Children's Hospital Los Angeles; Other
Eligibility: 1 Month to 18 Years
Enrollment: 176 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2026
U.S. locations: 1
States / cities: Los Angeles, California

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Diaphragmatic Breathing Exercises in Total Knee Arthroplasty Patients

Esophageal Balloon Measurements to Better Characterize Thoraco-abdominal Interrelationship Mechanics.

Stratified Targeted Engagement From Primary Care to Physical Therapy (STEPPT)

Understanding the Pathophysiology and Effects of Diaphragmatic Breathing in Upright Gastroesophageal Reflux

Effectiveness of Diaphragmatic Breathing on Reflux Symptoms in Outpatients

High-Tech, High-Touch

Providing Optimal PEEP During Mechanical Ventilation for Obese Patients Using Esophageal Balloon

The Impact of Aerobic Interval and Inspiratory Muscle Training On Patient Reported Outcome Scores In Individuals With Chronic Constipation

Improving Brief Marijuana Interventions With a Behavioral Economic Supplement

Effectiveness of Two Diaphragmatic Strengthening Programs on Symptoms of LPR as Measured by the Reflux Symptom Index (RSI) and the Reflux Disease Questionnaire (RDQ)

Long Term Follow up of Children Enrolled in the REDvent Study