Abstract:
This case report presents an implementation of dynamic balance and isokinetic (concentric) strength testing for a comprehensive assessment of the degree of strength and balance deficits during anterior cruciate ligament (ACL) reconstruction recovery. Tests were performed on the extensors and flexors of an injured and non-injured knee in a professional football player, six months after arthroscopic ACL intervention. The dynamic balance was tested with the Y balance test (YBT) and the results showed a good recovery based on proprioceptive targeted lower limb exercises with values of 100.1% for the non-injured leg and 98.5% for the injured leg with a norm >95% and indicate an appropriate physiotherapy program. According to the peak torque data obtained during isokinetic dynamometry the strength characteristics of the extensors of the injured knee were significantly lower compared to the healthy limb (1.91 Nm/kg vs. norm - 2.67 Nm). The bilateral PT difference of the extensors was 35% and was higher than the recommended 10% difference for safe return to sport. Peak torque values in concentric contractions of the athlete showed deficiencies in strength and risk of re-injury in early return to sport. These results allow an improvement in the training and therapeutic program of the football player and are beneficial for restoring the strength of the knee muscle groups and the unilateral/bilateral balance of strength in both legs in order to avoid re-injury.
Other Journals