Serum biochemical parameters affected by swimming exercise^*^,^† (continued).

*Different superscripts in upper case in the same row indicate significant difference between time intervals. Different superscripts in lower case in the same column indicate the significant difference between different groups (n = 6). Significant level p<0.05. †The normal serum levels are: calcium ion, 5.3–13.0 mg/dL; phosphate, 5.3–8.3 mg/dL; cholesterol, 40–130 mg/dL; triglyceride, 26–145 mg/dL; BUN, 15–21 mg/dL; uric acid, 1–6 mg/dL (human standard); creatinine, 0.2–0.8 mg/dL; albumin, 3.8–4.8 g/dL (data source from the National Laboratory Animal Center, Taipei, Taiwan).