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High-Intensity Interval Training to Improve Symptoms of Deployment-Related Respiratory Disease

NCT05849168 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 12

Last updated 2026-01-29

Study results available
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Summary

Some military personnel who have been exposed to burn pit emissions, desert dust, and other airborne hazards experience new respiratory symptoms after deployment. The goal of this clinical trial is to learn about exercise in veterans with new respiratory symptoms after deployment to Southwest Asia. The main questions it aims to answer are:

1. Do veterans with new respiratory symptoms after deployment have heart or lung abnormalities that contribute to difficulty exercising?
2. Does high-intensity interval training (HIIT) improve fitness and symptoms?

Study participants will complete the following:

1. Study Visits 1A and 1B: Exercise test (VO2max test), echocardiogram (heart ultrasound), blood tests, questionnaires
2. Exercise program: 12 weeks of 3x/week supervised HIIT on upright stationary bicycle (\~40 minutes each) and 3x/week home aerobic exercise (45 minutes each)
3. Study Visits 2A and 2B: Exercise test (VO2max test), echocardiogram (heart ultrasound), blood tests, questionnaires

Conditions

  • Occupational Exposure

Interventions

BEHAVIORAL

Exercise training

Participants will complete a 12-week exercise training program. The program consists of 3x/week HIIT sessions on an upright stationary bicycle (\~40 minutes each) and 3x/week home aerobic sessions (any type of aerobic exercise; 45 minutes each).

Sponsors & Collaborators

  • VA Office of Research and Development

    collaborator FED

  • University of Colorado, Denver

    lead OTHER

Principal Investigators

  • William Cornwell, MD, MSCS · University of Colorado, Denver

  • Lindsay Forbes, MD · University of Colorado, Denver

  • Silpa Krefft, MD · VA Eastern Colorado Health Care System

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-11-27
Primary Completion
2024-07-31
Completion
2024-07-31

Countries

  • United States

Study Locations

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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 NCT05849168 on ClinicalTrials.gov