Table 2.

Control and experimental initial forces and fatigue rates of cremaster muscle strips used in in vitro contraction experiments investigating the role of prostaglandins in the vasodilatation in response to skeletal muscle contraction. Forces and fatigue rates reported were following 60 min incubation with either Krebs solution (control) or the phospholipase A₂ inhibitor quinacrine (experimental)

Contraction parameters	Control force (g)	Experimental force (g)	Control fatigue rate (g min−1)	Experimental fatigue rate (g min−1)	n
4 Hz 15 CPM	1.0 ± 0.2	1.2 ± 0.2	0.01 ± 0.01	0.04 ± 0.02	7
20 Hz 15 CPM	2.5 ± 0.5	2.6 ± 0.6	−0.006 ± 0.02	−0.006 ± 0.07	7
60 Hz 15 CPM	3.4 ± 0.7	3.6 ± 0.9	0.02 ± 0.04	−0.02 ± 0.03	7
6 CPM 20 Hz	2.5 ± 0.5	3.6 ± 0.6	−0.03 ± 0.05	0.07 ± 0.05	7
15 CPM 20 Hz	2.8 ± 0.6	3.4 ± 0.5	−0.04 ± 0.04	0.05 ± 0.04	8
60 CPM 20 Hz	2.2 ± 0.5	3.1 ± 0.6	−0.57 ± 0.2	−0.69 ± 0.3	8

Values are means ± SE, n = number of muscle strips.