Table 1.

Arteriolar characteristics and oxidative capacity of the soleus and the superficial portion of gastrocnemius muscles

	Soleus Muscle				Gastrocnemius Muscle
	Young SED	Young ET	Old SED	Old ET	Young SED	Young ET	Old SED	Old ET
Tone (%)
Pre-Acetylcholine	47 ± 3	55 ± 5	51 ± 4	48 ± 4	31 ± 2	39 ± 3†	35 ± 4	39 ± 3
	n = 14	n = 11	n = 11	n = 13	n = 13	n = 13	n = 13	n = 11
Pre-l-NAME	60 ± 4	65 ± 5	55 ± 6	48 ± 7	38 ± 6	35 ± 6	38 ± 7	45 ± 5
	n = 7	n = 6	n = 8	n = 8	n = 5	n = 7	n = 8	n = 9
Post-l-NAME	71 ± 5	73 ± 2#	60 ± 6	64 ± 5	42 ± 3	53 ± 4#	44 ± 3	53 ± 5
	n = 7	n = 6	n = 8	n = 8	n = 5	n = 7	n = 8	n = 9
Pre-l-NAME
+ Indomethacin	52 ± 3	65 ± 3	58 ± 6	51 ± 6	27 ± 10	34 ± 11	44 ± 5	49 ± 7
	n = 5	n = 7	n = 10	n = 9	n = 5	n = 5	n = 9	n = 8
Post-l-NAME
+ Indomethacin	62 ± 10	73 ± 5#	69 ± 7	68 ± 4#	38 ± 8	56 ± 8#	60 ± 5#	60 ± 6#
	n = 5	n = 7	n = 10	n = 8	n = 5	n = 5	n = 9	n = 8
Citrate Synthase Activity
(μmol min−1 g−1 wet wt.)	17 ± 0.4	21 ± 0.7*	12 ± 0.5*	15 ± 0.8†	16 ± 1.1	21 ± 0.9*	14 ± 1.2	25 ± 1.5*†
	n = 33	n = 42	n = 26	n = 31	n = 27	n = 34	n = 20	n = 31

Values are means ±s.e.m.

^*Indicates group mean significantly different from young SED group (P = 0.05).

^†Indicates group mean significantly different from old SED group (P = 0.05).

^#Indicates significance difference from respective pretreatment level of spontaneous tone (P = 0.05).