Why did the importance of sports medicine increase in physical education?
The governing concept is protection of health throughout participation, recovery, and return to activity. Sports medicine applies medical and scientific knowledge to prevent injuries through warm-up, conditioning, technique, equipment, and safe training; it also supports assessment, first aid, treatment, rehabilitation, and a gradual return to practice or competition. Therefore, option A is correct because it includes the complete injury-care sequence rather than only one stage. Options B and C misunderstand the purpose of sports medicine, which is to support safe participation. Option D is also incorrect because medical care does not replace rules; prevention requires both.