There are too many types of injuries to go into detail here. There also seems to be a pattern for injuries in middle-aged adults. The average is 2.4 injuries per year involving 25.8 days of restricted activity. Women lose considerably less time and have fewer injuries. Every woman should exercise by participating in a sport she enjoys, and it is a good idea to be educated to some extent about the hazards of one's own particular sport as well as where and how to seek appropriate advice.
Prevention is, after all, the best medicine.
Most sport injuries are the result of too much too soon. The weekend warrior suffers through the pain on Monday because she has had too long an interval between sports workouts. Therefore one often neglected prevention of injury is the warm-up. Stretching one set of muscles should be followed by stretching the opposing ones. There are specific exercises for each muscle set.