Methods

• Subjects recruited from 2 Southwestern urban centers

• Inclusion criteria

  • Mild to severe COPD (FEV1Š 80% or FEV1> 80%, but FEV1/FVC<70%)

• Exclusion criteria

  • Cardiovascular disease
  • Major neurological or psychological conditions
  • Dementia (MMSE < 21)
  • Inability to walk for � 5 min

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