Cardiovascular or cardio-respiratory endurance or aerobic fitness, is the ability of the heart and lungs to deliver oxygen to the body's tissues during sustained physical activity. Muscular endurance is the ability of a muscle, or group of muscles, to perform continuously without fatigue. Weight training can be performed with free weights, such as barbells and dumbbells, or by using weight machines to increase the muscular strength.
Good oxygen usage during exercise, low resting heart rate, and good step- test results, are some of the GOOD things that come from regular exercise.
High blood pressure <em>(A)</em> is one of the BAD things that happen to people who DON't exercise regularly.
B. The softening of the uterus near the cervix
