Standing balance is the process which keeps the pressure center, vertical projection of the centre of gravity on ground inside the body weight-bearing. This study evaluates posture control in patients with unilateral lesion of anterior cruciate ligament of knee and in healthy individuals (control group), through parameters of pressure center. Nineteen healthy individuals (11 men, 8 women, age ranged from 18 to 30 years) and nineteen patients with unilateral lesion of anterior cruciate ligament of knee (18 men, 1 woman, age ranged from 15 to 33 years) were evaluated by FSCAN MAT® version 3848 (Tekscan® , Boston, MA, USA) sensors. Four different static tests with unilateral bearing were made, alternating the sides (dominant and non dominant) and keeping open or closed eyes. The parameters were calculated: total length path, antero-posterior amplitude, medio-lateral amplitude and maximum speed of pressure center. The results have pointed out that: the dominance of inferior limbs does not affect in a special way the balance of healthy individuals, the vision is an important factor in posture control and the unilateral lesion of anterior cruciate ligament of knee affects the balance in unilateral weight bearing, on both sides, however more evident on the side with the lesion.
Balance; Anterior cruciate ligament; Knee
