Hamstring muscle strain is one of the most common injuries in sports. Still, knowledge is limited about the progression of clinical and magnetic resonance imaging characteristics and their association with recovery time in athletes.
Eighteen elite sprinters with acute first-time hamstring injuries were examined, clinically and with MRI. All injuries occurred in the long head of the biceps femoris muscle. The results showed that injury to the proximal tendon, and closeness to the ischial tuberosity, were associated with longer time to return to pre-injury level.
CONCLUSION: Careful palpation during the first 3 weeks after injury and magnetic resonance imaging investigation performed during the first 6 weeks after injury provide valuable information that can be used to predict the time to return to pre-injury level of performance in elite sprinting.