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Body Composition and Muscle Function in Bronchiectasis: A Comparative Longitudinal Study.

Joice Mara de Oliveira1,2, Amber Smith1,2, Paola D Urroz Guerrero1,2

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Summary
This summary is machine-generated.

Peripheral muscle strength is reduced in adults with bronchiectasis, impacting their bone health and one-year clinical outcomes, including dyspnea and quality of life.

Keywords:
abdominal musclesbronchiectasisdyspnoeaquality of lifeskeletal muscleswalk test

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Area of Science:

  • Pulmonary Medicine
  • Clinical Physiology

Background:

  • Adults with bronchiectasis often experience altered body composition and muscle strength.
  • The prognostic significance of peripheral muscle strength in bronchiectasis is not fully understood.

Purpose of the Study:

  • Compare body composition and muscle function in adults with bronchiectasis versus healthy controls.
  • Examine the association between peripheral muscle strength and one-year clinical outcomes in bronchiectasis.

Main Methods:

  • DXA, dynamometry, and core endurance tests were used to assess body composition and muscle function.
  • Participants with bronchiectasis were categorized by leg strength and followed for one year.

Main Results:

  • Individuals with bronchiectasis showed reduced leg strength, lower appendicular muscle index (females), and poorer bone mineral density compared to controls.
  • Reduced leg strength correlated with increased dyspnea, poorer quality of life, and decreased functional capacity over one year.

Conclusions:

  • Bronchiectasis is associated with impaired muscle function and bone health.
  • Leg strength is a significant predictor of one-year clinical outcomes in individuals with bronchiectasis.