Table 2.

Effects of short and long duration intermittent hypoxia on systolic (ΔSBP/ΔS_aO2) and diastolic (ΔDBP/ΔS_aO2) blood pressure sensitivity to hypoxia, and heart rate (ΔHR/ΔS_aO2) sensitivity to hypoxia

		Day 1	Day 3	Day 5	Day 8	Day 10	Day 12	Day 15	Day 17
ΔSBP/ΔSaO2	SDIH	0.78 ± 0.57	0.86 ± 0.87	0.94 ± 0.73	1.14 ± 0.70	0.99 ± 0.50	1.20 ± 1.22	0.98 ± 0.99	1.01 ± 0.67
(mmHg %SaO2−1)	LDIH	0.71 ± 0.30	0.68 ± 0.52	0.58 ± 0.51	0.70 ± 0.31	0.68 ± 0.34	0.88 ± 0.69	0.50 ± 0.74	0.68 ± 0.56
ΔDBP/ΔSaO2	SDIH	0.37 ± 0.22	0.42 ± 0.50	0.48 ± 0.45	0.58 ± 0.42	0.45 ± 0.35	0.56 ± 0.65	0.45 ± 0.42	0.45 ± 0.34
(mmHg %SaO2−1)	LDIH	0.28 ± 0.17	0.28 ± 0.22	0.21 ± 0.25	0.32 ± 0.24	0.26 ± 0.18	0.40 ± 0.30	0.20 ± 0.35	0.29 ± 0.22
ΔHR/ΔSaO2	SDIH	1.16 ± 0.43	1.08 ± 0.60	1.17 ± 0.49	1.25 ± 0.57	1.26 ± 0.54	1.19 ± 0.69	1.29 ± 0.83	1.19 ± 0.68
(beats min−1%SaO2−1)	LDIH	1.05 ± 0.29	0.96 ± 0.29	1.12 ± 0.43	0.94 ± 0.47	0.89 ± 0.29	1.06 ± 0.38	1.03 ± 0.47	0.90 ± 0.37

Values are means ±s.d. SDIH, short-duration intermittent hypoxia, LDIH, long-duration intermittent hypoxia.