Table 6.

Rate of change in two stress biomarkers per hour due to underlying circadian rhythm (diurnal effect) and activity types; based on model outcomes for cortisol in Table 5 (NE = 110) and for amylase in Table 4, Model 2 (NE = 103).

Effect	Model beta	% Cortisol change/hour	Model beta	% Amylase change/hour
Diurnal effect	–0.124	–11.7%	+0.034	+3.5%
NE duration while sitting or sitting + walking	–0.240	–21.3%	–0.33	–28.1%
NE duration while walking only	–0.239	–21.3%	–0.04	–3.9%

For negative slopes, % drop is calculated as (1 – e ^{beta estimate}); for positive slopes, % rise is calculated as (e ^{beta estimate} – 1).