Aerobics is a form of physical exercise that combines rhythmic aerobic exercise with stretching and strength training routines with the goal of improving all elements of fitness (flexibility, muscular strength, and cardio-vascular fitness). It is usually performed to music and may be practiced in a group setting led by an instructor although it can be done solo and without musical appointment.
WHAT TO EXPECT
Formal aerobics classes are divided into different levels of intensity and complexity. A well-balanced aerobics class will have five components: warm-up (5-10 minutes), cardio vascular conditioning (25-30 minutes), muscular strength and conditioning (10-15 minutes), cool-down (5-8 minutes) and stretching and flexibility (5-8 minutes).Aerobics classes may allow participants to select their level of participation according to their fitness level. Many gyms offer a variety of aerobic classes.
Regular aerobic exercise has significant cardiovascular benefits, including a reduction in incidence of and mortality from coronary artery disease--probably because of positive effects on blood lipid levels and blood pressure. Aerobic exercise can also be an important adjunct to a weight-loss program.
Aerobic activities vary in intensity from light to vigorous. Aerobic exercise may prove disadvantageous if you easily experience extreme breathlessness; take medications for a heart condition, stroke or high blood pressure; have recently experienced a heart attack or stroke; or have known problems with your muscles, bones or joints that may worsen as a result of your activities.