Cardiovascular Training - From the Heart

Сайт: http://aerobics-cardio.info/

Cardiovascular training, or aerobics, requires a different approach than other body parts. At the heart of cardiovascular training is one basic premise: if you elevate your heart rate to 65-80 percent of your maximum and keep it there for a period of at least 12 minutes it will stimulate the production of fat-burning enzymes. It will also strengthen your heart and increase the capacity of your lungs to re-oxygenate your blood more efficiently.