Natanek, Samantha A Pathways associated with reduced quadriceps oxidative fibres and endurance in COPD. [electronic resource] - The European respiratory journal Jun 2013 - 1275-83 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1399-3003 Standard No.: 10.1183/09031936.00098412 doi Subjects--Topical Terms: 14-3-3 Proteins--metabolismAMP-Activated Protein Kinases--metabolismAgedCalcineurin--metabolismCase-Control StudiesCell Nucleus--metabolismCyclic AMP-Dependent Protein Kinases--metabolismEnzyme-Linked Immunosorbent Assay--methodsFemaleHumansMEF2 Transcription Factors--metabolismMaleMiddle AgedMuscle Fibers, Skeletal--pathologyOxidative StressOxygen--chemistryPhosphorylationPhysical EndurancePulmonary Disease, Chronic Obstructive--physiopathologyQuadriceps Muscle--physiopathologyRNA, Messenger--metabolismRespiratory Function TestsSpirometry