Medical research has proven that people can substantially improve their health and quality of life with moderate physical activity. However according to the centers for disease control and prevention 1 out of 4 American adult report that they dont engage in any physical activity in their leisure times and of those surveyed almost half are unable to engage in the recomended amount of activity 30 minutes per day.
Researchers have found that moderate physical activity of at least 30 minutes a day provides significant health benefits. Even people with chronic conditions such as osteoarthritis and osteoporosis can improve their health and quality of life with regular, moderate amounts of physical activity.
Regular physical activity slows the loss of muscle mass, strengthens bones and reduces joint and muscle pain. Physical activity also improves mobility, balance and sleep. These factors all reduce the risk of falling, which could prevent a serious injury such as a hip fracture. Physical activity is safe and beneficial for people with chronic conditions like arthritis, high blood pressure, or osteoporosis. In fact, lack of activity can make these conditions worse or, at least, make them difficult to live with. If you have medical or orthopaedic conditions, or if you are out of shape and haven’t exercised in awhile, check with your physician before starting any exercise program.
Exercise need not be strenuous or stressful. While some people enjoy participating in a regularly-scheduled exercise class, others can achieve healthful benefits from daily activities such as brisk walking, bicycle riding, swimming, dancing, housework and gardening.
Adults are encouraged to do different physical activities on different days, and even in short intervals of 15 minutes in the morning and 15 minutes in the afternoon. The healthful benefits of physical activity are cumulative. However, the benefits diminish quickly when physical activity ceases.
AAOS, Position Statement - Need for Daily Physical Activity