Cardiopulmonary Adaptations to High-intensity Interval Training (HIIT) in COPD

NCT ID: NCT06551441

Last Updated: 2024-08-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

66 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-08-01

Study Completion Date

2026-08-01

Brief Summary

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The aim of this prospective randomised controlled trial in which the impact of high intensity interval training (HIIT) on pulmonay blood volume, pulmonary gas exchange during exercise, and lung tissue mass.

The primary objective is to investigate whether 6 months of supervised HIIT leads to an increase in pulmonary blood volume in patients with COPD with a concomitant improvement in pulmonary gas exchange.

Key objectives are to determine whether an increase in pulmonary blood volume is associated with the formation of new lung tissue. Other secondary objectives include investigating the effect of supervised HIIT on formation of lung tissue, symptom severity, pulmonary gas exchange at supine rest and on pulmonary blood volume at rest. Finally, exploratory objectives include investigating the effects of HIIT on lung function, V̇O2peak, functional outcomes, body composition, blood samples and cardiac output.

Participants will be randomly allocated (1:1) stratified by sex to either

1. 24 weeks of HIIT training consisting of 3 weekly supervised exercise sessions or
2. A control group who will not undergo HIIT training. The control group will be encouraged not to change their exercise or eating habits.

The participants will visit the clinic pre- and post the intervention. Exercise habits, adverse events, hospital admisseions, infections and medications will be assessed by phone at week 4, 8, 12, 16, 20 and at follow-up visit. All participants will undergo 24-h accelerometry for five consecutive days to measure posture allocation and daily physical activity behavior. The devices will be attached just before the randomization, after one month, at 12 weeks and just before the 6 months testing.

Detailed Description

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Conditions

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COPD Rehabilitation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Exercise

The HIIT intervention includes three supervised sessions per week over a 24-week period i.e., 72 exercise sessions and take place at CFAS or at home with supervision

Group Type EXPERIMENTAL

High Intensity Interval Training (HIIT)

Intervention Type BEHAVIORAL

The HIIT intervention consist of 4 intervals with each lasting 4 minutes (4x4min). If a participant reports discomfort related to the length of the intervals or start to feel unmotivated by performing the same exercise, we will use another HIIT protocol: 10x1min.

The 4x4min HIIT consists of a warm-up period of 10 minutes with a target heart rate at 60-70% of HRmax, followed by 4 HIIT intervals with a target HR ≥85%. The intervals are separated by three minutes of active rest, in which the HR should drop to 60% of maximum. Following this, a cool down period of three minutes at warm up intensity is performed.

The 10x1min HIIT consists of a 10-minute warm-up period.The warm-up is followed by 10 intervals, each lasting 1 min at 100% of maximal workload, separated by three minutes of active rest, in which the HR should drop to 60% of maximum. Following the intervals, a cool down period of three minutes at warm up intensity is performed.

Control group

Controls will be encouraged to maintain current exercise habits for the duration of the study.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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High Intensity Interval Training (HIIT)

The HIIT intervention consist of 4 intervals with each lasting 4 minutes (4x4min). If a participant reports discomfort related to the length of the intervals or start to feel unmotivated by performing the same exercise, we will use another HIIT protocol: 10x1min.

The 4x4min HIIT consists of a warm-up period of 10 minutes with a target heart rate at 60-70% of HRmax, followed by 4 HIIT intervals with a target HR ≥85%. The intervals are separated by three minutes of active rest, in which the HR should drop to 60% of maximum. Following this, a cool down period of three minutes at warm up intensity is performed.

The 10x1min HIIT consists of a 10-minute warm-up period.The warm-up is followed by 10 intervals, each lasting 1 min at 100% of maximal workload, separated by three minutes of active rest, in which the HR should drop to 60% of maximum. Following the intervals, a cool down period of three minutes at warm up intensity is performed.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Men and women
* Age \>=40 and \<80 years
* COPD (GOLD stage I to III)
* Modified Medical Research Council score (mMRC) of 0 to 3

Exclusion Criteria

* Symptoms of ischaemic heart disease
* Known heart failure
* Unable to complete or understand HIIT training
* Claudication
* Symptoms of disease within 2 weeks prior to the study
* Participation in pulmonary rehabilitation within 3 months
* Known malignant disease
* Pregnancy
* Unstable cardiac arrhythmic disease
* Renal or liver dysfunction

* Known chronic kidney or liver disease
* Elevated creatinine, urea, alanine transaminase (ALAT), aspartate transaminase (ASAT), bilirubin, basic phosphatases at blood test
* Completion of pulmonary rehabilitation within the last 3 months
Minimum Eligible Age

40 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Rigshospitalet, Denmark

OTHER

Sponsor Role lead

Responsible Party

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Ronan Berg

MD, DMSc, Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Center For Physical Activity Research, Rigshospitalet

Copenhagen, , Denmark

Site Status RECRUITING

Countries

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Denmark

Central Contacts

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Iben E Rasmussen, MSc

Role: CONTACT

Ronan Berg, MD, DMSc

Role: CONTACT

Facility Contacts

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Iben E Rasmussen, MSc

Role: primary

Other Identifiers

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H-24021751

Identifier Type: -

Identifier Source: org_study_id

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