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Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease

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Published on: August 24, 2019

Peripheral muscle dysfunction in COPD: lower limbs versus upper limbs.

Eduardo Foschini Miranda¹, Carla Malaguti, Simone Dal Corso

¹Nove de Julho University, São Paulo, Brazil.

Jornal Brasileiro De Pneumologia : Publicacao Oficial Da Sociedade Brasileira De Pneumologia E Tisilogia

|July 15, 2011

Summary

Patients with Chronic Obstructive Pulmonary Disease (COPD) experience greater upper limb impairment due to breathing difficulties and muscle changes. Targeted exercise programs are needed for both upper and lower limbs in COPD management.

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Area of Science:

Pulmonary Medicine
Exercise Physiology
Rehabilitation

Background:

Patients with Chronic Obstructive Pulmonary Disease (COPD) report significant dyspnea and fatigue during unsupported upper limb activities.
This impairment is attributed to respiratory muscle neuromechanical dysfunction and altered lung volumes during exercise.

Purpose of the Study:

To investigate the differences in functional impairment between upper and lower limbs in COPD patients.
To explore the underlying mechanisms contributing to exercise intolerance in upper and lower limb activities in COPD.

Main Methods:

Comparative analysis of upper and lower limb exercise responses in COPD patients.
Assessment of neuromechanical dysfunction, breathing patterns, lung volumes, and muscle metabolism during different exercise types.

Main Results:

Upper limb exercises in COPD patients elicit higher metabolic and ventilatory demands, increased dyspnea, and greater fatigue compared to lower limb exercises.
Lower limb exercise intolerance in COPD is linked to reduced quadriceps strength, impaired aerobic capacity, and altered muscle metabolism.
Respiratory muscle asynchrony and dynamic hyperinflation contribute to upper limb exercise limitations in COPD.

Conclusions:

Significant morphological and functional adaptations exist between upper and lower limb muscles in COPD patients.
Development and testing of specific strength and endurance training protocols for upper and lower limbs are recommended for COPD rehabilitation.