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Interstitial Lung Disease Due to Systemic Disease (Disorder)NCT07061873

Physical Exercise Program for Adults With Diffuse Interstitial Lung Disease in a Pulmonary Rehabilitation Context

A study testing Aerobic excersise and Muscle strength limbs, inspiratory muscle strength in people with Interstitial Lung Disease Due to Systemic Disease (Disorder) and Interstitial Lung Disease in Patients With Rheumatoid Arthritis, run by Universidad de La Frontera at 1 site in Chile.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

This study aims to evaluate the effectiveness of an exercise program that includes three exercise modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program that includes only one modality (Aerobic) in the context of a Pulmonary Rehabilitation program in adults with diffuse… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Aerobic excersise and Muscle strength limbs, inspiratory muscle strength
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
29 participants
Where
1 siteChile
Study dates
1 Oct 2024to 1 Sep 2026
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults 18 years of age or older.
  • Medical Diagnosis of Diffuse Interstitial Pulmonary Disease.
  • Medical Referral to pulmonary rehabilitation according to stability criteria.
  • Sign the Informed Consent form.

Who cannot join

  • Neuromotor impairment that prevents independent transfer.
  • Cognitive deficit that prevents you from understanding simple instructions.
  • General exercise contraindications according to the American College of Sports Medicine.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Chile1 site
  • Universidad de La Frontera

    Temuco, Cautín, 4780000

Other trials in Chile

About this study

This study aims to evaluate the effectiveness of an exercise program that includes three exercise modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program that includes only one modality (Aerobic) in the context of a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region, in terms of exercise tolerance.

A randomized clinical trial will be conducted, with 2 parallel groups, with masked evaluator. This study will include adults with a diagnosis of Diffuse Interstitial Lung Disease who are referred according to their medical condition and who agree to participate through an informed consent form. Participants will be recruited in the community and will be referred to the Physical Function and Rehabilitation Laboratory of the Faculty of Medicine of the Universidad de La Frontera, where they will be evaluated and subsequently randomly assigned to each group. The evaluation consists of a series of tests and instruments to collect information regarding dyspnea, exercise tolerance, muscle strength and lung function, among others. The intervention corresponds to a Pulmonary Rehabilitation program, where both groups will receive education in psychological and nutritional aspects, self-care and physical activity. The difference between groups is that the control group will receive an intervention with an aerobic exercise modality and the experimental group will receive three exercise modalities together (aerobic, strengthening of extremities and strengthening of respiratory muscles).The program will last 10 weeks, with sessions twice a week, and at the end of the program the initial parameters will be re-evaluated.

Data analysis will be performed using descriptive statistical elements, such as distribution tables and graphs. The inferential analysis will be performed using Chi2 for the association between the intervention and the main outcome variable, in addition to the calculation of RR to assess the magnitude of the association; the secondary outcome variables will be calculated for the primary outcome variable association; secondary outcome variables will be analyzed using Student's t-test.

Read the detailed description

General Objective: To evaluate the effectiveness of an exercise program that includes three exercise modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program that includes only one modality (Aerobic) in the context of a Pulmonary Rehabilitation program in adults carriers of diffuse interstitial disease in the Araucanía Region, in terms of exercise tolerance.

Specific Objectives:

  1. To evaluate the effectiveness of an exercise program that includes three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program of only one modality (Aerobic) in the context of a Pulmonary Rehabilitation program in adults carriers of diffuse interstitial disease in the Araucanía Region, in terms of exercise tolerance.
  2. To evaluate the effectiveness of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus a one-modality exercise program (Aerobic) within a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region, in terms of dyspnea control.
  3. To evaluate the effectiveness of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program with one modality (Aerobic) within a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region, in Health-Related Quality of Life.
  4. To evaluate the effectiveness of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program with one modality (Aerobic) within a Pulmonary Rehabilitation program in adults with diffuse interstitial disease of the Araucanía Region, in terms of upper limb strength.
  5. To evaluate the effectiveness of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program with one modality (Aerobic) within a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region, in terms of lower limb strength.
  6. To evaluate the effectiveness of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program with one modality (Aerobic) within a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region, in terms of inspiratory muscle strength.
  7. To evaluate the effectiveness of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus an exercise program with one modality (Aerobic) within a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region, in pulmonary function.
  8. To evaluate the adherence to treatment of an exercise program with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) and the exercise program of one modality (Aerobic) in the context of a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region.
  9. To evaluate the incidence of adverse effects that lead to stopping the exercise session according to the exercise program: with three modalities (Aerobic, Limb Strength and Respiratory Muscle Strength) versus a one-modality exercise program (Aerobic) in the context of a Pulmonary Rehabilitation program in adults with diffuse interstitial disease in the Araucanía Region.
  10. To describe the functionality in users who enter the Pulmonary Rehabilitation program for adults with diffuse interstitial disease in the Araucanía Region.
  11. To describe the cognitive function in users who enter the Pulmonary Rehabilitation program for adults with diffuse interstitial disease in the Araucanía Region.

Design It corresponds to a randomized clinical trial, 2 parallel groups, with masked evaluator. This design is the one that provides the best certainty of evidence to attribute causality, therefore, to evaluate the effectiveness of an intervention.

Sample The study population will be adults with a medical diagnosis of diffuse lung disease, clinically stable, who are under medical treatment (In the original text it said: "in the Polyclinic of Respiratory Diseases", however, due to the sample size obtained, as a team we decided to make a free invitation to those who wish to participate and are under medical treatment in the public or private sector).

The sample will be constituted by participants who meet the following eligibility criteria:

Inclusion Criteria.

  • Adults aged 18 years or older.
  • Medical diagnosis of diffuse interstitial lung disease.
  • Medical referral to pulmonary rehabilitation according to stability criteria.
  • Signing of the Informed Consent form.

Exclusion Criteria

  • Neuromotor impairment that prevents independent transfer.
  • Cognitive deficit preventing him/her from understanding simple instructions.
  • General contraindications to exercise according to the American College of Sports Medicine.

In the sample size calculation, a number of 26 subjects was obtained, considering a significance level of 5%, a power of 80%, an estimated difference between the groups under study of 40 (±35) meters walked in the main response variable, evaluated with the 6-minute Walk Test (De las Heras JC, Hilberg O, Lokke A, Bendstrup E. Tele-rehabilitation program in Idiopathic Pulmonary Fibrosis. European Respiratory Journal. 2019). Considering a 10% loss, the final sample size will be 29 individuals.

Evaluation: A set of physical assessments and questionnaires that evaluate the following.

functional parameters:

  • Exercise tolerance
  • Dyspnea
  • Health-Related Quality of Life
  • Limb Muscular Strength
  • Respiratory Muscular Strength
  • Pulmonary Function
  • Functionality
  • Cognition

Training: is the intervention itself and consists of aerobic physical exercise or a combination of 3 modalities:

  • Aerobic Exercise
  • Limb Strength Exercise
  • Respiratory Muscular Strength Exercise

All interventions will take place at the Faculty of Medicine of the Universidad de La Frontera, located at Claro Solar 115, and the Laboratory of Physical Fitness and Rehabilitation of the Universidad de La Frontera, located at 18 de Septiembre 525, 6th floor.

This research has been approved by the Scientific Ethics Committee of Universidad de La Frontera, Act Number 119_2024.

Being tested
Aerobic excersise, Muscle strength limbs, inspiratory muscle strength
Keywords
ILD, Pulmonary rehabilitation, aerobic excercise, limb strenght, respiratory muscle strenght
Medical subject headings
Pulmonary Fibrosis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Aerobic excersiseProcedure or surgery

    20 aerobic exercise sessions, with a duration of 45 to 60 minutes, for 10 weeks.

  • Muscle strength limbs, inspiratory muscle strengthProcedure or surgery

    20 sessions of exercise Muscle strength limbs, inspiratory muscle strength, with a duration of 60 minutes, for 10 weeks

Study groups in NCT07061873
Study groupRoleWhat they receive
ControlOtherControl (Aerobic excercise)
Receives: Procedure: Aerobic excersise
InterventionExperimentalIntervention (Muscle strength limbs, inspiratory muscle strength, aerobic exercise)
Receives: Procedure: Aerobic excersise; Procedure: Muscle strength limbs, inspiratory muscle strength

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Exercise tolerance

    It is the body's ability to withstand physical activity. It is measured by the duration and intensity of exercise that a person can perform without excessive fatigue, pain or shortness of breath.

    Measured: Baseline and then at the end of the 10-week training period

Secondary outcomes (10)
  1. Perceived effort

    Corresponds to the subjective feeling of how demanding a physical activity is. It reflects the intensity with which one feels one's body is working, from "very light" to "maximum effort". It is a useful tool for regulating exercise intensity according to the patient's perception. For the purposes of this study, the perception of exertion will be assessed using the Modified Borg Scale from 0 to 10 points, where 0 corresponds to "No dyspnea" and 10 "Very, very severe".

    Measured: Baseline and then at the end of the 10-week training period

  2. Dyspnea

    Subjective sensation of shortness of breath or difficulty breathing. It may be mild or severe, acute or chronic. It is a frequent symptom of various pulmonary or cardiac conditions, but may also be due to anxiety or intense exercise. To assess Dyspnea, we use the Modified Medical Research Council (mMRC) scale, where 0 is "No shortness of breath except during strenuous exercise" and 4 is "Choking sensation during day-to-day exertion such as getting dressed or going out of the house and need for rest".

    Measured: Baseline and then at the end of the 10-week training period

  3. Inspiratory muscle strength

    Inspiratory muscle strength is the ability of the respiratory muscles to expand the lungs during inspiration. It is measured by the maximum pressure they can generate when breathing in against resistance. A good level of inspiratory strength is crucial for efficient breathing and good lung health. It will be assessed by an isokinetic valve (PowerBreatheK5), using the best value obtained from 5 attempts, 'for this a continuous scale in cmH2O is used.

    Measured: Baseline and then at the end of the 10-week training period

  4. Muscle strenght of limbs

    Ability of arm muscles to generate tension and overcome resistance. It is measured by the amount of force they can produce when pushing, pulling or lifting objects. This strength is essential for everyday activities such as walking, lifting, or playing sports. To assess the muscle function of lower limbs, we mesured through the Sit to Stand Test in 1 minute (STST-1m), with the values standardized for Chilean adults by Otto et al.

    Measured: Baseline and then at the end of the 10-week training period.

  5. Muscle strenght of arms

    Ability of arm muscles to generate tension and overcome resistance. It is measured by the amount of force they can produce when pushing, pulling or lifting objects. This strength is essential for everyday activities such as walking, lifting, or playing sports. To assess the muscle function of arms, it will be evaluated by means of prehensile dynamometry, taking as reference values those established by Romero-Dapueto, et al. for Chilean adults.

    Measured: Baseline and then at the end of the 10-week training period

  6. Pulmonary Function

    Refers to the ability of the lungs to exchange oxygen and carbon dioxide between air and blood. It involves processes such as ventilation (air inflow and outflow), diffusion (passage of gases) and perfusion (pulmonary blood flow). For this study we will use the Forced Vital Capacity (FVC), the Forced Expiratory Volume in the first second (FEV1) measured in liters, and the ratio between both values (FEV1/FVC) established as a percentage. In addition, the statistical value obtained, according to the reference values of the Global Lung Function Initiative (GLI).

    Measured: Baseline and then at the end of the 10-week training period

  7. Treatment Adherence

    Extent to which a patient follows his or her physician's recommendations. It involves attending medical appointments and following lifestyle changes. Good adherence is crucial for successful treatment and improved health. Adherence will be measured in relation to the number of sessions the subject completes, i.e. completing the 20 training sessions counts as adherence and a lower number means non-adherence to treatment.

    Measured: Baseline and then at the end of the 10-week training period

  8. Adverse Effects

    Unwanted reactions that may occur as a result of a treatment, such as the performance of a procedure. They can range from mild to severe. The American College of Sports Medicine has established a series of adverse effects of training, which we have listed and will be checked at each session to assess whether there were adverse effects of training. Among the problems that could occur are the following:

    1. Injuries
    2. Overload
    3. Dehydration
    4. Cardiovascular problems
    5. Gastrointestinal problems
    6. Neuroendocrine problems
    7. Others (to be noted manually by the trainer)

    Measured: Baseline, in each of the training sessions and in the reevaluation.

  9. Functionality

    The ability of a system, object or person to perform the functions for which it was designed or adapted. It implies efficiency, utility and fitness for a specific purpose. In people, it refers to the ability to perform activities of daily living and participate in society. this parameter will be evaluated through the Activities of Daily Living Questionnaire (ADLQ-T).

    Measured: Baseline and then at the end of the 10-week training period

  10. Cognition

    Encompasses the mental processes that make it possible to acquire, process and use information. It includes functions such as attention, memory, language, perception, reasoning and problem solving. It is the basis of knowledge, learning and interaction with the environment. This parameter will be evaluated through the Montreal Cognitive Assessment (MoCA).

    Measured: Baseline and then at the end of the 10-week training period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jul 2025
  2. Study start1 Oct 2024
  3. Primary completion1 May 2026 (estimated)
  4. Study completion1 Sep 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
29 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07061873
Sponsor's protocol ID
ECA RP-EPID
Other IDs
DI24-011
Status last verified
Jul 2025
First submitted
21 Mar 2025
Last updated
11 Jul 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Study protocol

Questions about this trial

What is this clinical trial studying?

A study testing Aerobic excersise and Muscle strength limbs, inspiratory muscle strength in people with Interstitial Lung Disease Due to Systemic Disease (Disorder) and Interstitial Lung Disease in Patients With Rheumatoid Arthritis, run by Universidad de La Frontera at 1 site in Chile.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 11 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Chile. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Exercise tolerance (time frame: Baseline and then at the end of the 10-week training period). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Jul 2025.

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