The anaerobic lactic energy system is where the muscles do not use oxygen and lactic acid is produced.Making the best of Energy production Different events require athletes to use combinations of the three energy systems.he anaerobic lactic energy system is where the muscles do not use oxygen and lactic acid is produced.
Photo Credit Michele D. Lee/Demand Media. Stir the ground beef every three to five minutes as it cooks in the skillet. Break apart the cooking meat with the spatula to get the chunks smaller if desired. Cook the ground beef for eight to 10 minutes or until no pink remains in the middle of the pieces. The USDA recommends cooking ground beef until it reaches an internal temperature of 160 degrees Fahrenheit.
Wash your hands before and after handling the ground beef. After about 10 to 15 minutes of cooking time, check the burger for doneness. Place an instant-read in the center of the thickest burger. According to the USDA, ground meat must be cooked to at least 160Â°, or well done.This typically takes from 10 to 15 minutes, depending on the thickness or size of the hamburgers.fter using the food thermometer, clean it with hot soapy water. Though any temperature under 160Â° is not considered safe for ground meat (USDA Guidelines), here is a list of cooking times for varying degrees of doneness for burgers: 1  Rare: 120 to 125. 2  Medium Rare: 130 to 135. 3  Medium Well: 150 to 155.