Pulmonary Rehabilitation Frequency in COPD Patients
Comparative Efficacy of a Supervised Pulmonary Rehabilitation Program Performed 3 Days/Week Versus 1 Day/Week in Patients With Chronic Obstructive Pulmonary Disease (COPD): a Randomized Clinical Trial
Chronic obstructive pulmonary disease (COPD) is a common condition that can cause breathlessness and reduced physical capacity. Pulmonary rehabilitation (PR) is an effective treatment, but traditional programs often require patients to attend sessions several times per week, which may limit participation.
This study aims to compare the effectiveness of two supervised pulmonary rehabilitation programs: one performed 3 days per week and another performed 1 day per week, both over an 8-week period and including additional home-based exercises.
The main objective is to determine whether the lower-frequency program is not inferior to the higher-frequency program in improving functional capacity, measured by the six-minute walk test. Secondary outcomes include dyspnea, quality of life, muscle strength, physical activity, adherence, exacerbations, and safety.
The results of this study may help optimize pulmonary rehabilitation programs and improve accessibility for patients with COPD.
調査の概要
詳細な説明
This is a randomized, parallel-group clinical trial designed to evaluate the non-inferiority of a supervised pulmonary rehabilitation (PR) program performed once weekly compared with a program performed three times weekly in patients with stable chronic obstructive pulmonary disease (COPD).
Participants will be recruited from a tertiary care hospital and randomly assigned to one of two intervention groups: (1) supervised PR three days per week or (2) supervised PR one day per week. Both interventions will be conducted over 8 weeks and will include structured exercise training and educational components, complemented by a home-based program.
The primary outcome is functional capacity assessed by the six-minute walk test. Secondary outcomes include dyspnea, health-related quality of life, peripheral muscle strength, physical activity levels, adherence to the intervention, incidence of exacerbations, and safety.
Statistical analyses will be conducted according to both intention-to-treat and per-protocol principles. A non-inferiority framework will be applied, and appropriate mixed-effects models will be used to assess differences between groups over time.
研究の種類
入学 (推定)
段階
- 適用できない
参加基準
適格基準
就学可能な年齢
- 子
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
IInclusion criteria
- Diagnosis of COPD confirmed by spirometry (FEV₁/FVC <0.70)
- Modified Medical Research Council (mMRC) dyspnoea scale ≥2
- Ability to actively participate and perform physical exercise
- Signed informed consent
Exclusion criteria
- Unstable cardiac or musculoskeletal comorbidity contraindicating or limiting exercise
- Moderate to severe cognitive impairment or inability to understand instructions
- Recent participation (<6 months) in a complete pulmonary rehabilitation programme
- Inability to attend the centre 1-3 days/week according to group allocation
- Current participation in any structured pulmonary rehabilitation programme or supervised rehabilitation intervention in another centre.
- Active oncological treatment
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:Pulmonary Rehabilitation 3 Days/Week
Participants receive supervised pulmonary rehabilitation three times per week for 8 weeks, including exercise training and educational components, complemented by a home-based program.
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Supervised pulmonary rehabilitation program including exercise training and educational components, complemented by a home-based program.
|
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実験的:Pulmonary Rehabilitation 1 Day/Week
Participants receive supervised pulmonary rehabilitation once per week for 8 weeks, including exercise training and educational components, complemented by a home-based program.
|
Supervised pulmonary rehabilitation program including exercise training and educational components, complemented by a home-based program.
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Functional capacity assessed by the six-minute walk test (6MWT)
時間枠:Change from baseline to 8 weeks (end of intervention)
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Functional capacity will be measured using the six-minute walk test (6MWT), expressed as distance walked in meters.
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Change from baseline to 8 weeks (end of intervention)
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Maximal inspiratory pressure (MIP)
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Respiratory muscle strength assessed by maximal inspiratory pressure (MIP), expressed in cmH₂O.
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Change from baseline to 8, 12, and 24 weeks
|
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Maximal expiratory pressure (MEP)
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Respiratory muscle strength assessed by maximal expiratory pressure (MEP), expressed in cmH₂O.
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Change from baseline to 8, 12, and 24 weeks
|
|
Quadriceps muscle strength
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Peripheral muscle strength assessed by quadriceps dynamometry, expressed in Newtons.
|
Change from baseline to 8, 12, and 24 weeks
|
|
Five-times sit-to-stand test (5STS)
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Functional lower limb performance assessed by the time required to complete five sit-to-stand repetitions, expressed in seconds.
|
Change from baseline to 8, 12, and 24 weeks
|
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One-minute sit-to-stand test (1-min STS)
時間枠:Change from baseline to 8, 12, and 24 weeks
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Functional capacity assessed by the number of repetitions completed in one minute.
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Change from baseline to 8, 12, and 24 weeks
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Dyspnea assessed by the modified Medical Research Council (mMRC) scale
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Dyspnea severity measured using the mMRC scale (range 0-4, higher scores indicate worse dyspnea).
|
Change from baseline to 8, 12, and 24 weeks
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COPD Assessment Test (CAT)
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Health status assessed using the CAT questionnaire (range 0-40, higher scores indicate worse health status).
|
Change from baseline to 8, 12, and 24 weeks
|
|
Short Form-36 Health Survey (SF-36)
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Health-related quality of life assessed using the SF-36 questionnaire across multiple domains.
|
Change from baseline to 8, 12, and 24 weeks
|
|
Hospital Anxiety and Depression Scale (HADS)
時間枠:Change from baseline to 8, 12, and 24 weeks
|
Psychological status assessed using the HADS questionnaire (range 0-21 per subscale, higher scores indicate worse symptoms).
|
Change from baseline to 8, 12, and 24 weeks
|
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Physical activity assessed by the International Physical Activity Questionnaire (IPAQ)
時間枠:At 8 and 24 weeks
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Physical activity levels assessed using the IPAQ questionnaire.
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At 8 and 24 weeks
|
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Adherence to pulmonary rehabilitation program
時間枠:During the 8-week intervention period
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Adherence defined as the percentage of attended supervised sessions.
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During the 8-week intervention period
|
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COPD exacerbations
時間枠:Up to 24 weeks
|
Number of COPD exacerbations during follow-up.
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Up to 24 weeks
|
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Emergency department visits and hospital admissions
時間枠:Up to 24 weeks
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Number of COPD-related emergency visits and hospital admissions.
|
Up to 24 weeks
|
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Adverse events
時間枠:During the 8-week intervention and follow-up up to 24 weeks
|
Incidence of adverse events, including fatigue, dyspnea, pain, dizziness, and falls.
|
During the 8-week intervention and follow-up up to 24 weeks
|
協力者と研究者
出版物と役立つリンク
一般刊行物
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研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- HUFAlcorcon
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
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