AA is generally the abbreviation for Associate of Arts degree. This is the degree given by many two-year colleges, often called Community Colleges (which used to be called Junior Colleges). Some also award the AS-- Associate in Science degree. Typically, an Associate's degree is the equivalent of a year, or in some cases a year and a half, of courses at a four-year college, and there are many students who transfer their Associate's degree credits so that they can complete a four-year degree.
Although it may seem difficult, lowering your breathing speed will help to lower your heart rate. Take a breath for 5-8 seconds, hold it for 3-5 seconds, and then exhale slowly for a count of 5-8 seconds.
Heart Rate Recovery. The rate at which your heart rate is reduced following a workout, which is also known as your heart rate recovery, can be more important than your heart rate during training. On average, you should experience a heart-rate drop between 15 and 20 beats per minute, 60 seconds after your step off the treadmill.