. Author manuscript; available in PMC: 2016 Sep 9.

Published in final edited form as: Am J Physiol Regul Integr Comp Physiol. 2010 Apr 21;299(1):R80–R91. doi: 10.1152/ajpregu.00246.2009

Table 3.

MSNA and HRV responses during 5 min of baseline and fatiguing isometric handgrip exercise with SB and CB

Breathing Condition	MSNA		HRV
Breathing Condition	Burst Incidence, bursts/100 heartbeats	Total Activity, arbitrary units	LF, ms²	HF, ms²	HF, nu	LF/HF
SB baseline	19.5 (9.26)	19.9 (11.8)	2,698 (1,397)	3,983 (2,783)	53.7 (13.6)	0.88 (0.39)
SB exercise	19.9 (10.2)	35.2 (20.9)^*	1,400 (894.2)	958.8 (1,448)^*	27.6 (15.9)^*	3.5 (2.9)^*
CB baseline	18.3 (10.5)	21.8 (15.3)	1,499 (702.8)	4,377 (3,369)	62.5 (22.5)	0.74 (0.99)
CB exercise	23.32 (10.82)^†	38.49 (21.70)^†	1,467 (1,216)	1,671 (2,294)^†	38.3 (18.0)^†	2.0 (1.8)

Values are means (SD); n = 8.

P < 0.05, significantly different from SB baseline.

^†

P < 0.05, significantly different from CB baseline.