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Mean values (±SD) measured for cortisol over 24 h. Post hoc testing showed a significant difference between t 10 and t 3 (P = 0.031), t 5 (P = 0.016), t 7 (P = 0.004), t 8 (P = 0.006) and t 9 (P = 0.005) (t 3 = 14:00 h; t 5 = 18:00 h; t 7 = 22:00 h; t 8 = 01:00 h; t 9 = 04:00 h; t 10 = 06:30 h).
