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Related Experiment Video

Updated: Jun 10, 2025

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
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A High-Intensity versus Moderate-Intensity Exercise Training Programme in Alpha-1 Antitrypsin Deficiency-Related COPD

Inga Jarosch1,2, Tessa Schneeberger3,4, Rainer Gloeckl3,4

  • 1Institute for Pulmonary Rehabilitation Research, Schoen Klinik Berchtesgadener Land, Schönau am Königssee, Germany, ijarosch@schoen-klinik.de.

Respiration; International Review of Thoracic Diseases
|October 20, 2024
PubMed
Summary

High-intensity training (HIT) and moderate-intensity training (MIT) equally improved exercise capacity in alpha-1 antitrypsin deficiency (AATD) patients. However, HIT showed added benefits for anxiety and depression symptoms in specific patient subgroups.

Keywords:
Alpha-1 antitrypsin deficiencyChronic obstructive pulmonary diseasePhysical trainingPsychological aspectsTraining

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Area of Science:

  • Exercise Physiology
  • Pulmonary Rehabilitation
  • Genetic Disorders

Background:

  • Alpha-1 antitrypsin deficiency (AATD) is associated with chronic obstructive pulmonary disease (COPD), where training adaptations are often blunted.
  • Optimizing exercise interventions is crucial for improving outcomes in AATD patients with COPD.

Purpose of the Study:

  • To compare the effects of high-intensity training (HIT) versus moderate-intensity training (MIT) on exercise capacity and quality of life in patients with AATD-related COPD.
  • To investigate potential differential effects of training intensity on psychological symptoms like anxiety and depression.

Main Methods:

  • Thirty patients with AATD (PiZZ genotype) and moderate-to-severe COPD were randomized into HIT or MIT groups.
  • Both programs included endurance, strength, and squat training over 3 weeks, with 6-minute walk distance (6MWD) as the primary outcome.
  • Psychological assessments using the Hospital Anxiety and Depression Scale (HADS) were conducted on subgroups.

Main Results:

  • Twenty-five patients completed the study; both HIT and MIT groups showed significant improvements in 6MWD, sit-to-stand test, dyspnea, and CRQ scores without between-group differences.
  • In patients with anxiety or depression symptoms (HADS ≥8), HIT led to significant reductions in anxiety and depression.
  • No significant differences were observed between HIT and MIT for primary outcomes in the overall cohort.

Conclusions:

  • Both HIT and MIT are equally effective in enhancing exercise capacity, quality of life, and reducing dyspnea in AATD patients.
  • HIT may offer additional psychological benefits for patients experiencing anxiety or depression.
  • Personalized exercise prescription considering patient preference is recommended for long-term adherence.