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.
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.
Authors: Gregory D Myer; Larry Martin; Kevin R Ford; Mark V Paterno; Laura C Schmitt; Robert S Heidt; Angelo Colosimo; Timothy E Hewett Journal: Am J Sports Med Date: 2012-08-09 Impact factor: 6.202
Authors: Matthew D Civilette; William R Rate; Brett D Haislup; Andrew S Cohen; Lyn Camire; Blake M Bodendorfer; Heath P Gould Journal: SAGE Open Med Date: 2022-07-30
Authors: Geoffrey D Abrams; Joshua D Harris; Anil K Gupta; Frank M McCormick; Charles A Bush-Joseph; Nikhil N Verma; Brian J Cole; Bernard R Bach Journal: Orthop J Sports Med Date: 2014-01-21