2.4.3. Skeletal Muscle Tissue

A small piece of tissue (~14 mg) was removed from the *vastus lateralis* using a Quick-Core biopsy needle (14 gauge, 6 cm long with a 20 mm throw, from Cook Medical Inc., Bloomington, IN, USA), and processed as described previously [20], extracted with perchloric acid containing DTPA, and stored at −80 °C until HPLC analysis.
