Blood samples were collected by cardiac puncture from overnight-fasted mice 48 h after the last exercise session. After clotting, the serum was separated by centrifugation 3500 rpm for 15 min at 4 °C. Serum glucose was measured by the automatic biochemical analyzer [69 (link)] (Mindray, BS-350E) using the specific assay kits (Mindray Co., Ltd., Shenzhen, China).
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