People who are physically active have a lower risk of CHD, but the activity needs to be regular and aerobic. Aerobic activity involves using the large muscle groups in the arms, legs and back steadily and rhythmically so that breathing and heart rate are significantly increased. Fitness levels Partly as a consequence of low activity levels, fitness levels are also low. Fitness levels, like activity levels, decline with age. Even walking on the level is severe exertion for a large proportion of older people.
Most vigorous activity is achieved through sport and exercise during leisure time.
More People, More Active, More Often. Strategy Statement on Physical Activity.