Table 2.

Microdialysis probe recovery

	Rest	0.5–1	1–1.5	1.5–2	2–2.5	2.5–3	3–3.5	3.5–4	4–4.5	4.5–5	7.5–8	9–9.5	9.5–10	23–23.5	23.5–24
Young	47 ± 2*	56 ± 1	55 ± 1	56 ± 1	57 ± 1	55 ± 1	54 ± 2	55 ± 1	54 ± 1	55 ± 1	55 ± 1	58 ± 2	56 ± 1	55 ± 2	57 ± 1
Old	48 ± 2*	56 ± 3	57 ± 2	57 ± 3	58 ± 3	56 ± 3	56 ± 3	57 ± 3	57 ± 3	57 ± 3	54 ± 2	54 ± 3	53 ± 2	61 ± 2	61 ± 3

Values are means ± s.e.m. Data are presented as percentages. Average for each 30 min time point is the average of all eight subjects in each group with each subject represented by the average percent recovery obtained from their two probes. Resting values were significantly lower (P < 0.05) than all other time points for both young and old.