Table 3.

Temperatures and MSNA burst incidence during handgrip exercise in the three trials

	Prior Exercise	HG	PECO	Stretch
MSNA BI, bursts/100 beats
WBH	51.7 ± 18.5	57.2 ± 18.1	62.7 ± 24.8	63.5 ± 25.7*
NT	55.7 ± 18.1	67.2 ± 21.9*	67.4 ± 18.1*	74.8 ± 21.5*
LH	53.1 ± 15.6	64.3 ± 18.8	66.2 ± 14.6*	68.3 ± 16.3*
Tsk, °C
WBH	36.6 ± 0.7#	36.6 ± 0.7#	36.6 ± 0.7#	36.6 ± 0.7#
NT	34.3 ± 0.5	34.3 ± 0.5	34.3 ± 0.6	34.3 ± 0.6
LH	34.3 ± 0.5†	34.3 ± 0.5†	34.4 ± 0.5†	34.4 ± 0.5†
Tcore, °C
WBH	37.1 ± 0.3#	37.1 ± 0.3#	37.2 ± 0.3#	37.1 ± 0.3#
NT	36.8 ± 0.2	36.8 ± 0.2	36.8 ± 0.2	36.8 ± 0.2
LH	36.8 ± 0.2	36.8 ± 0.2	36.8 ± 0.2	36.8 ± 0.1
Tbody, °C
WBH	37.1 ± 0.3#	37.1 ± 0.3#	37.1 ± 0.3#	37.1 ± 0.3#
NT	36.5 ± 0.2	36.6 ± 0.2	36.55 ± 0.2	36.55 ± 0.2
LH	36.6 ± 0.2†	36.6 ± 0.2†	36.6 ± 0.2†	36.6 ± 0.1†
Tarm, °C
WBH	31.5 ± 1.7#	31.9 ± 1.7#	31.8 ± 1.6#	31.9 ± 1.5#
NT	30.4 ± 1.0	30.5 ± 0.8	30.6 ± 0.8	30.6 ± 0.8
LH	35.3 ± 1.3#†	35.7 ± 1.1*#†	35.9 ± 1.1*#†	36.1 ± 1.1*#†
Tmuscle, °C
WBH	34.3 ± 1.6	34.7 ± 1.2	34.8 ± 1.1*	34.6 ± 1.2
LH	34.8 ± 1.0	35.7 ± 0.6*†	35.9 ± 0.6*†	35.8 ± 0.6*†

Two-way repeated-measures ANOVA was used for statistical analysis. *P < 0.05 vs. prior exercise; #P < 0.05 vs. normothermic control trial; †P < 0.05 LH vs. WBH. Subject number n = 14 for the WBH and normothermic control trials. n = 11 for the LH trial. HG, last minute of the handgrip exercise; LH, local forearm heating trial; MSNA BI, muscle sympathetic nerve activity burst incidence; NT, normothermic time control trial; PECO, postexercise circulatory occlusion; stretch, passive stretch during the occlusion; T_arm, arm skin temperature; T_body, mean body temperature; T_core, internal temperature; T_muscle, muscle temperature; T_sk, mean skin temperature; WBH, whole body heating trial.