TABLE 5.

Changes in the relative changes from the baseline cerebral metabolic rate for oxygen and cerebral blood volume in response to 17-min low-intensity cycling ergometer exercises, followed by 3-min moderate-intensity cycling ergometer exercises.

	Ex3	Ex13	Ex20	Post1	Post2	Post3	Post15	ES (η2-partial)
rCMRO2
Rt	1.04 ± 0.08	1.14 ± 0.13	1.24 ± 0.20**, §	1.20 ± 0.15**	1.21 ± 0.19**	1.13 ± 0.16	1.07 ± 0.18	0.466
Lt	1.05 ± 0.05	1.09 ± 0.09	1.16 ± 0.10**	1.18 ± 0.11**, §	1.14 ± 0.13*	1.08 ± 0.11	1.05 ± 0.11	0.406
rCBV
Rt	1.00 ± 0.02	1.04 ± 0.04**	1.07 ± 0.05**, §	1.07 ± 0.04**	1.07 ± 0.05**, §	1.05 ± 0.04**	1.01 ± 0.05	0.633
Lt	1.00 ± 0.02	1.03 ± 0.04	1.06 ± 0.05**	1.07 ± 0.05**, §	1.06 ± 0.05*	1.05 ± 0.04	1.01 ± 0.04	0.406
rCBF
Rt	1.01 ± 0.07	1.15 ± 0.14**	1.28 ± 0.22**, §	1.26 ± 0.18**	1.28 ± 0.22**, §	1.21 ± 0.16**	1.06 ± 0.20	0.631
Lt	0.99 ± 0.04	1.11 ± 0.12**	1.20 ± 0.15**	1.23 ± 0.15**, §	1.20 ± 0.16**, §	1.18 ± 0.14**	1.02 ± 0.13, §	0.641
rOEF
Rt	1.04 ± 0.04	0.99 ± 0.05	0.98 ± 0.07*, §	0.96 ± 0.06**	0.95 ± 0.05**	0.93 ± 0.04**, §	1.02 ± 0.05	0.456
Lt	1.06 ± 0.04	0.99 ± 0.05**	0.98 ± 0.07**, §	0.97 ± 0.07**	0.95 ± 0.04**	0.93 ± 0.07**, §	1.04 ± 0.04, §	0.608

Values are expressed as the mean ± standard deviation (n = 12) at 3 min (Ex3), 13 min (Ex13), and 20 min (Ex20) after exercise initiation and 1 min (Post1), 2 min (Post2), 3 min (Post3), and 15 min (Post15) after exercise termination.

The data were averaged over 15 s for each time point.

rCMRO₂: relative changes from the baseline in the cerebral metabolic rate for oxygen; rCBV: the relative changes from the baseline in the cerebral blood volume; rCBF: the relative changes from the baseline in cerebral blood flow; rOEF: the relative changes from the baseline in oxygen extract fraction; Rt: right; Lt: left.

Significance of difference from Ex 3: *p < 0.05 and **p < 0.001. Significance of difference from Ex13: §p < 0.05.

ES: effect size.

rCMRO₂, rCBV, rCBF, and rOEF are demonstrated when ScO₂ or [HbT] changed significantly from the baseline.