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. 2019 Apr 4;10:722. doi: 10.3389/fpsyg.2019.00722

Table 5.

Effect of physical activity type on cortisol.

Activity type (# participants, #NEs) Time of day (h)/diurnal effect
Length of NE (h)/duration
n Beta (SE) p Beta (SE) p
Sitting (21, 33) and Sitting+walking (11, 17) 100 –0.124 (0.012) <0.0001 –0.240 (0.010) 0.023
Walkers (23,60) 120 –0.239 (0.068) 0.0006

Mixed model linear regression of log cortisol on time of day (diurnal effect), duration of the nature experience, and two activity groups (n = 220 from 110 NEs).