Changes in MSNA during static exercise in the upper (a) and lower limb (b) (isometric handgrip exercise and isometric foot planter flexion or dorsiflexion and isometric knee extension, respectively). Percent changes in MSNA from baseline were calculated by MSNA data (bursts/min) in published articles. a [14, 17, 19, 21, 40, 50, 80, 81, 83, 86], b [81, 84, 86]