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Fig. 2 | BMC Pulmonary Medicine

Fig. 2

From: Specific motor cortex hypoexcitability and hypoactivation in COPD patients with peripheral muscle weakness

Fig. 2

Experimental design. QMVC: Quadriceps voluntary contractions at maximal (100% of QMVC) or submaximal (50 and 30% of QMVC) intensity. Superimposed and control doublets, maximal M-waves (Mmax), and maximal H-waves (Hmax) were delivered via electrical stimulation over the femoral nerve. Motor evoked potentials (MEP) were delivered over the motor cortex via transcranial magnetic stimulation

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