The objective of this study was to examine the effect of closed kinetic chain exercises performed by an unstable exercise group (UEG) and a stable exercise group (SEG) on the knee joint, proprioception, and functional scores of patients who underwent anterior cruciate ligament (ACL) reconstruction. 28 patients took part in this study. The exclusion criteria were fracture or neurological disease. The subjects were randomly assigned to one of two groups, each with 14 people. Each group participated in a 60-minute exercise program, three times a week for six weeks. The results of the clinical evaluation at 45°proprioception displayed statistically significant differences between the two groups. The results of the clinical evaluation at 15°proprioception showed no statistically significant differences between the two groups.
The proprioception and functional scores of the patients in the UEG who underwent ACL reconstruction were better than those in the SEG group.