Signs of a chronic injury include: Pain when you play Pain when you exercise A dull ache when you rest Swelling. Sourced from: http://www.niams.nih.gov/Health_Info/Sports_Injuries/sports_injuries_ff.asp
Chronic injuries will be characterized by pain during exercise or sporting activity and a faint ache while resting. Luckily, it is possible to prevent frequent injuries with some tips especially n the case of the three most recognized activities; football, gymnastics, and cheerleading.
Supervision should be provided at all times during stunt routines. As with any sport, proper conditioning and training are important to minimize injury, including: Resistance exercises to gain strength in the lower back, stomach, and shoulders Regular stretching, yoga, or pilates instruction to improve flexibility Speaking with a sports medicine professional or athletic trainer if you have any concerns about injuries or cheerleading injury prevention strategies Returning to play only when clearance is granted by a healthcare professional Sourced from: http://www.orthop.washington.edu/?q=patient-care/articles/sports/common-sports-injuries-and-sports-injury-prevention-tips.html