Figure 2.

—Functional exercise capacity changes and secondary outcomes after 2- and 4-week of electrical stimulation between-group. A) Functional exercise capacity; B) differences in mMRC; C) changes in PaO2; D) changes in diaphragmatic motion after 2- and 4-week electrical stimulation. mMRC: modified Medical Research Council; PaO2: partial pressure of oxygen. *Note a significant between-group difference of P<0.05 at the end of 4 weeks; ^†changes in diaphragmatic motion in quiet breathing between-group.