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Effects of TPB-Based Cadence Exercise and Breathing Training on Physiological Parameters and Quality of Life in Patients With COPD (COPD)

5 octobre 2026 mis à jour par: CHANG CHIA JUNG, Fu Jen Catholic University Hospital

The Effects of a Theory of Planned Behavior-Based Intervention Incorporating Cadence Exercise and Breathing Training on Physiological Parameters and Quality of Life in Patients With Chronic Obstructive Pulmonary Disease

This randomized controlled trial aims to evaluate the effects of a Theory of Planned Behavior (TPB)-based intervention incorporating cadence exercise and breathing training on physiological parameters and quality of life in patients with chronic obstructive pulmonary disease (COPD). Eligible participants will be randomly assigned to receive breathing training, cadence exercise, a combined intervention of breathing training and cadence exercise, or usual care. The intervention will be conducted for 12 weeks, with assessments at baseline, Week 8, and Week 12. The study will evaluate changes in physiological parameters, exercise capacity, respiratory muscle strength, and quality of life. The findings may provide evidence for developing behavioral interventions to support pulmonary rehabilitation and improve health outcomes in people with COPD.

Aperçu de l'étude

Description détaillée

Chronic obstructive pulmonary disease (COPD) is a chronic respiratory condition that can cause persistent respiratory symptoms, reduced exercise capacity, impaired respiratory muscle function, and decreased quality of life. Pulmonary rehabilitation and regular physical activity are important components of COPD management; however, adherence to exercise and respiratory training may be affected by individual behavioral factors.

This randomized controlled trial is designed based on the Theory of Planned Behavior (TPB), which proposes that attitudes, subjective norms, and perceived behavioral control influence behavioral intention and subsequent health behaviors. The study aims to evaluate whether a TPB-based intervention incorporating cadence exercise and breathing training can improve physiological parameters and quality of life in patients with COPD.

Eligible participants will be randomly assigned to one of four groups: a breathing training group, a cadence exercise group, a combined breathing training and cadence exercise group, or a usual-care control group. Participants in the breathing training group will perform respiratory muscle training using an adjustable respiratory muscle training device. Participants in the cadence exercise group will perform walking exercise guided by a metronome at a predetermined cadence. Participants in the combined intervention group will receive both breathing training and cadence exercise. The usual-care group will receive routine clinical care.

The intervention period will be 12 weeks. Participants will be assessed at baseline (T0), Week 8 (T1), and Week 12 (T2). Outcome assessments will include physiological parameters, respiratory muscle strength, pulmonary function, exercise capacity, dyspnea, and health-related quality of life. Physiological and functional outcomes will include oxygen saturation, heart rate, respiratory rate, maximal inspiratory pressure, maximal expiratory pressur and the six-minute walk test. Quality of life and COPD-related symptoms will be assessed using validated instruments.

The study will also assess TPB-related constructs, including attitude, subjective norm, perceived behavioral control, and behavioral intention, to explore behavioral factors associated with adherence to the intervention. The study findings are expected to provide evidence regarding the effectiveness of cadence exercise and breathing training, individually and in combination, and to contribute to the development of behaviorally informed pulmonary rehabilitation strategies for patients with COPD.

Type d'étude

Interventionnel

Inscription (Estimé)

200

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

    • New Taipei City
      • New Taipei City, New Taipei City, Taïwan, 242062
        • Pas encore de recrutement
        • Fu Jen Catholic University Hospital
        • Contact:
      • New Taipei City, New Taipei City, Taïwan
        • Recrutement
        • Taipei Hospital, Ministry of Health and Welfare
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

40 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:Adults aged 40 years or older. Diagnosed with chronic obstructive pulmonary disease (COPD). Able to understand the study procedures and provide informed consent. Able to participate in respiratory training and/or step-frequency exercise as instructed by the researchers.

Able to complete the questionnaires and physical assessments required by the study.

-

Exclusion Criteria:Acute exacerbation of COPD or unstable clinical condition during the study period.

Severe cardiovascular, musculoskeletal, neurological, or other medical conditions that may interfere with participation in the intervention or outcome assessments.

Cognitive or communication impairment that prevents completion of the study procedures or questionnaires.

Unable to safely perform the required respiratory training or step-frequency exercise.

Participation in another clinical intervention study that may affect the outcomes of this study.

-

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Seul

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Breathing Training Group

Participants in this group will receive a 12-week breathing training intervention based on the Theory of Planned Behavior. Respiratory muscle training will be performed using an adjustable respiratory muscle training device according to the standardized training protocol. Participants will receive instructions and training materials to support adherence to the intervention.

A 12-week respiratory muscle training intervention based on the Theory of Planned Behavior. Participants will perform breathing training using an adjustable respiratory muscle training device according to a standardized training protocol. The intervention includes standardized instruction and training materials to support adherence.

Expérimental: Cadence Exercise Group

Participants in this group will receive a 12-week cadence exercise intervention based on the Theory of Planned Behavior. Walking exercise will be performed with a metronome to guide the prescribed cadence according to the standardized training protocol. Participants will receive instructions and training materials to support adherence to the intervention.

A 12-week cadence-guided walking exercise intervention based on the Theory of Planned Behavior. Participants will perform walking exercise using a metronome to guide the prescribed cadence according to a standardized training protocol. The intervention includes standardized instruction and training materials to support adherence.

Expérimental: Combined Breathing Training + Cadence Exercise Group

Participants in this group will receive a 12-week combined intervention consisting of breathing training and cadence exercise based on the Theory of Planned Behavior. Participants will perform breathing training followed by cadence-guided walking exercise according to the standardized training protocol. Instructions and training materials will be provided to support adherence to the intervention.

A 12-week respiratory muscle training intervention based on the Theory of Planned Behavior. Participants will perform breathing training using an adjustable respiratory muscle training device according to a standardized training protocol. The intervention includes standardized instruction and training materials to support adherence.

A 12-week cadence-guided walking exercise intervention based on the Theory of Planned Behavior. Participants will perform walking exercise using a metronome to guide the prescribed cadence according to a standardized training protocol. The intervention includes standardized instruction and training materials to support adherence.

Comparateur actif: Usual Care Group

Participants in this group will receive usual clinical care for chronic obstructive pulmonary disease according to routine clinical practice. No additional breathing training or cadence exercise intervention will be provided as part of the study.

Participants in this group will receive usual clinical care for chronic obstructive pulmonary disease according to routine clinical practice. No additional breathing training or cadence exercise intervention will be provided as part of the study.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Maximal Inspiratory Pressure (MIP)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

Maximal inspiratory pressure (MIP) will be measured to evaluate respiratory muscle strength.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
Maximal Expiratory Pressure (MEP)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

Maximal expiratory pressure (MEP) will be measured to evaluate respiratory muscle strength.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
Oxygen Saturation (SpO₂)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

Oxygen saturation (SpO₂) will be measured to evaluate physiological status.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
Six-Minute Walk Test (6MWT)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

Six-minute walk test (6MWT) distance will be measured to evaluate exercise capacity.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
COPD Assessment Test (CAT)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

COPD Assessment Test (CAT) score will be used to assess the impact of COPD symptoms on patients' health status and quality of life.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
Modified Medical Research Council Dyspnea Scale (mMRC)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

Modified Medical Research Council Dyspnea Scale (mMRC) score will be used to assess the severity of dyspnea in patients with COPD.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
St. George's Respiratory Questionnaire (SGRQ)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

St. George's Respiratory Questionnaire (SGRQ) score will be used to assess health-related quality of life in patients with COPD.

Baseline (T0), Week 8 (T1), and Week 12 (T2)
WHOQOL-BREF (Taiwan Version)
Délai: Baseline (T0), Week 8 (T1), and Week 12 (T2)

WHOQOL-BREF (Taiwan Version) score will be used to assess health-related quality of life.

Baseline (T0), Week 8 (T1), and Week 12 (T2)

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Chercheur principal: CHIA JUNG CHANG, RN, Fu Jen Catholic University Hospital

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

6 octobre 2026

Achèvement primaire (Estimé)

25 décembre 2027

Achèvement de l'étude (Estimé)

25 décembre 2027

Dates d'inscription aux études

Première soumission

30 septembre 2026

Première soumission répondant aux critères de contrôle qualité

5 octobre 2026

Première publication (Réel)

6 octobre 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

5 octobre 2026

Dernière vérification

1 octobre 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Description du régime IPD

Individual participant data will not be shared with other researchers because of participant confidentiality and privacy considerations. The data will be used only for the purposes specified in the approved study protocol and informed consent.

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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