Table 2.

Esophageal and mean skin temperatures, heart rate, and mean arterial pressure at rest and during the two exercise and recovery periods

					Recovery 2
	Rest	Exercise 1 (30 min)	Recovery 1 (20 min)	Exercise 2 (30 min)	20 min	40 min
Esophageal temperature, °C
Younger (n = 10)	37.22 ± 0.17	37.72 ± 0.14*	37.43 ± 0.13*	37.85 ± 0.15*	37.52 ± 0.11*	37.50 ± 0.10*
Older (n = 10)	37.17 ± 0.15	37.78 ± 0.14*	37.51 ± 0.16*	37.94 ± 0.14*	37.61 ± 0.16*	37.51 ± 0.15*
Mean skin temperature, °C
Younger (n = 12)	35.12 ± 0.18	35.70 ± 0.15*	35.47 ± 0.13*	35.78 ± 0.15*	35.53 ± 0.16*	35.35 ± 0.14*
Older (n = 12)	34.92 ± 0.17	35.66 ± 0.14*	35.34 ± 0.19*	35.79 ± 0.17*	35.35 ± 0.22*	35.18 ± 0.15*
Heart rate, beats/min
Younger (n = 11)	76 ± 6	128 ± 8*	86 ± 5*	134 ± 9*	91 ± 5*	87 ± 6
Older (n = 12)	68 ± 5	111 ± 9*†	77 ± 8*†	116 ± 10*†	79 ± 8*†	78 ± 8*†
Heart rate reserve, %Reserve
Younger (n = 11)	7 ± 3	48 ± 8*	15 ± 6*	52 ± 9*	19 ± 5*	14 ± 6*
Older (n = 12)	6 ± 4	54 ± 7*	19 ± 7*	58 ± 8*	23 ± 10*	18 ± 7*
Mean arterial pressure, mmHg
Younger (n = 12)	88 ± 4	96 ± 3*	88 ± 4	93 ± 4*	85 ± 4*	85 ± 4*
Older (n = 12)	92 ± 4	103 ± 5*†	94 ± 5	101 ± 5*†	91 ± 5	92 ± 4†

Values are means ± 95% confidence interval. Values indicate an average of the final 10 min of the corresponding period.

^*P < 0.05 vs. Rest.

^†P < 0.05 vs. Younger.