Tracking Ability, Motor Coordination, and Functional Determinants After Anterior Cruciate Ligament Reconstruction

Yosmaoglu H. B., Baltaci G., Kaya D., Ozer H.

JOURNAL OF SPORT REHABILITATION, vol.20, no.2, pp.207-218, 2011 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 2
  • Publication Date: 2011
  • Doi Number: 10.1123/jsr.20.2.207
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.207-218
  • Keywords: functional performance, isokinetic, motor control, proprioception, reconstructive surgery, JOINT POSITION SENSE, MUSCLE PERFORMANCE, DEFICIENT KNEE, TENDON-BONE, MECHANORECEPTORS, PROPRIOCEPTION, STRENGTH, REHABILITATION, STABILITY, LESIONS
  • Bursa Uludag University Affiliated: No


Context: The development pattern of motor coordination, strength, and functional ability during recovery from anterior cruciate ligament (ACL) reconstruction. Objective: To investigate the relationship between motor coordination, functional ability, and strength after ACL reconstruction. Design: Prospective clinical follow-up study. Setting: Sports-injury research laboratory. Participants: 20 subjects who underwent ACL reconstruction. Interventions: Real-time eccentric and concentric motor coordination were tested by a multijoint lower limb tracking-trajectory test, quadriceps and hamstring isokinetic strength were assessed by isokinetic dynamometer, and functional performance was tested with a single-leg-hop test 6 and 12 mo after ACL reconstruction. Main Outcome Measures: Percentage deficits of the involved lower extremity for target-tracking ability, peak torque, total work parameters of isokinetic strength, and single-leg-hop distance. Results: Deficits in hamstring-quadriceps isokinetic muscle strength and single-leg-hop distance significantly decreased from the 6th to the 12th mo after surgery (P < .05). There were no significant differences in muscle concentric and eccentric motor-coordination deficits of the involved side (P > .05). Conclusions: Although muscle strength and functional performance clearly increased from the 6th to the 12th mo after surgery, coordination characteristics of involved side remained low. This pattern demonstrated that motor-coordination progression was not affected by strength development. Patients continued to have significant motor-coordination deficits even 12 mo postsurgery. Therefore, the authors recommend that neuromuscular-coordination exercises be included in long-term rehabilitation programs to improve motor coordination.