Figure 1
From: Preserved function and reduced angiogenesis potential of the quadriceps in patients with mild COPD
Individual values for mid-thigh cross-sectional area (MTCSA, panel A ), maximal voluntary contraction of the quadriceps (MVC, panel B ), mean potentiated quadriceps twitch force at baseline (TwQ pot , panel C ), time to exhaustion during an isometric contraction at 50% of MVC (Quad End , panel D ) in patients with mild COPD ( open dots ) and controls ( filled dots ). The horizontal lines represent group mean values.