Table 1.

Effect of time of day on UBSM contractility at two initial tensions.

	1.5 g	2.5 g
Initial tension
ssKCl-Induced amplitude	ns	ns
Phasic amplitude	*ZT4/ZT10	*ZT4/ZT10
Phasic frequency	ns	ns
EFS amplitude	ns	ns
Half-max frequency	ns	ns
Paxilline
Phasic amplitude	*ZT17
Phasic frequency	ns
EFS amplitude	ns

For 1.5 g initial tension, n’s are reported in the previous figure legends. For 2.5 g initial tension, n = 8 animals (1–2 UBSM strips averaged per animal). ssKCl, steady-state KCl-induced amplitude. ns, no significant difference across timepoints (p > 0.05, one-way ANOVA). *p < 0.05 (one way ANOVA, and the indicated post hoc comparison (Bonferroni) was significant at p < 0.05.