title: [Health benefits and risks in sports: the other side of the coin].
abstract: Regular exercise has varied health effects, ranging from well-documented benefits to suggested risks. Probably the most important benefit is the reduction of the risk of coronary death by approximately one half among male exercisers, who also have a slightly elevated life-expectancy. This cardioprotective effect of physical exercise is not offset by the immediate increase in risk of sudden death during strenuous exercise. Sports-related complaints and injuries of the locomotor system must however also be born in mind. Different sports have different injury rates, but often a dose-effect relationship can be seen within one type of activity. The long-term effects of exercise on bones and joints are of uncertain dignity, since they may range from desirable prevention of osteoporosis to sports-induced premature osteoarthritis. The potentially important health effects of exercise at old age are largely unknown. From a prevention perspective, one to two weekly hours of vigorous exercise or an additional energy expenditure of at least 1000 kcal per week (also with moderate-intensity exercise such as walking) can safely be recommended. At present, only one third to one half of the adult Swiss population are physically that active.
authors.forename: B
authors.initials: B
authors.lastname: Marti
mesh_terms: D003327:Coronary Disease / Q000517:prevention & control; D005260:Female; D006801:Humans; D008297:Male; D010809:Physical Fitness; D011322:Primary Prevention; D012307:Risk Factors; D013177:Sports; D014947:Wounds and Injuries / Q000517:prevention & control
vernacular_title: Gesundheitlicher Nutzen und Risiken beim Sport: Die Medaille hat zwei Seiten.