Table 2.

Delays in onset of parasternal intercostal EMG activity during spontaneous breathing and HF- SCS

			HF-SCS
	Spontaneous Breathing (n = 6)		Tidal volume matching (n = 6)	Rib cage contribution matching (n = 3)
	Delay, ms	To/TI, %	Delay, ms	Delay, ms
2nd interspace medial	301 ± 37	18 ± 2	4.1 ± 0.3	4.4 ± 0.2
2nd interspace lateral	563 ± 58*	30 ± 2*	5.4 ± 0.5*	6.1 ± 0.4*
4th interspace medial	576 ± 52*	33 ± 2*	4.9 ± 0.2*	5.3 ± 0.4*

Values are means ± SE.

^*P < 0.05 compared with 2nd interspace medial during spontaneous breathing and HF-SCS, respectively