Aerobic vs. Resistance Exercise for Lung Function in Quarry Workers

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

In this randomized study, quarry workers will be assigned to aerobic exercise, resistance exercise, or routine treatment with breathing exercises for eight weeks. The goal is to see which exercise type better improves ventilatory function, as well as functional capacity and health-related quality of life. Participants will perform supervised sessions three times weekly, in addition to standard care. Outcomes include spirometry measures like FVC and FEV1, plus assessments of physical performance and HRQOL. The study focuses on a specific occupational group with dusty exposure to understand how tailored exercise programs may help this population.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Male quarry workers.
* The age range is between 30 and 40 years.
* BMI values from 25 to 29.9 kg/m².
* They work 5 to 6 times per weeks with mean exposure range (5-10 years) (Kumar et al., 2014). Exhibited chest manifestations (Respiratory symptoms) like cough, dyspnea, wheeze, and ventilatory impairment with significant reduction in (FEV1/FVC\<70% and/or FVC\<80% and reduce Peak Expiratory flow 25- 75% (PEF25-75%)(Abdelwahaab et al., 2025).
* Clinically stable (no exacerbation in past 4-6 weeks).
* Low levels of physical activity (using the International Physical Activity Questionnaire-Short Version) (The Arabic version of the questionnaire will be used).

Exclusion criteria:

* Patients with acute respiratory infections or recent exacerbation(4-6 weeks).
* Asthmatic patient.
* Chest cancer.
* Musculoskeletal diseases and other disorders that could potentially impact the study's findings are excluded from the trial.
* Other major lung diseases (e.g., TB, ILD, bronchiectasis, cancer).
* Unstable cardiovascular disease.
* Uncontrolled hypertension.
* Severe musculoskeletal or neurological limitation to exercise.
* Cognitive impairment.
* Participation in PR in past 6 months.
* Heavy smokers.

Where it's running

• Faculty of Physical Therapy, Deraya University
  Minya, Minya Governorate, Egypt Recruiting

Study contacts

• Study coordinator: Taher M Kamal Eldin, B.Sc. in physical therapy
• Email: taherkamal364@gmail.com
• Phone: +201004047580

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.