Journal ArticleDOI
Reflex inhibition of the quadriceps femoris muscle after injury or reconstruction of the anterior cruciate ligament.
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TLDR
A burst-superimposition technique was used to assess the strength of the quadriceps femoris muscle in three groups of patients who had had a torn anterior cruciate ligament of the knee and had a reconstruction of the ligament one to six months after the injury.Abstract:
A burst-superimposition technique was used to assess the strength of the quadriceps femoris muscle in three groups of patients. Group 1 comprised twenty patients who had had a torn anterior cruciate ligament of the knee and had a reconstruction of the ligament one to six months after the injury. Group 2 comprised twelve patients who had had a torn anterior cruciate ligament for an average of three months (a subacute tear). Group 3 comprised eight patients who had had a torn anterior cruciate ligament for an average of two years (a chronic tear). The patients in Groups 2 and 3 had not had an operation for the torn ligament. The patients in Groups 1 and 3 had no evidence of failure of activation of the involved quadriceps, but nine of the twelve patients in Group 2 had reflex inhibition of contraction of the muscle.read more
Citations
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Quadriceps Strength and the Time Course of Functional Recovery After Total Knee Arthroplasty
TL;DR: Functional measures underwent an expected decline early after TKA, but recovery was more rapid than anticipated and long-term outcomes were better than previously reported in the literature.
Journal ArticleDOI
The effect of insufficient quadriceps strength on gait after anterior cruciate ligament reconstruction.
TL;DR: Inadequate quadriceps strength contributes to altered gait patterns following anterior cruciate ligament reconstruction, which may contribute to a safe return to high-level activities.
Journal ArticleDOI
Early quadriceps strength loss after total knee arthroplasty. The contributions of muscle atrophy and failure of voluntary muscle activation.
TL;DR: Patients who are managed with total knee arthroplasty have profound impairment of quadriceps strength one month after surgery, predominantly due to failure of voluntary muscle activation, and it is also influenced, to a lesser degree, by muscle atrophy.
Journal ArticleDOI
Strength of the Quadriceps Femoris Muscle and Functional Recovery after Reconstruction of the Anterior Cruciate Ligament. A Prospective, Randomized Clinical Trial of Electrical Stimulation *
TL;DR: There was a clinically and statistically significant difference in the recovery of the quadriceps and the gait parameters according to the type of operation that had been performed: the patients who had had reconstruction of the anterior cruciate ligament with use of an autologous patellar-ligament graft did poorly compared with the other patients.
Journal ArticleDOI
Quadriceps activation following knee injuries: a systematic review.
TL;DR: Quadriceps activation failure is common in patients with ACLd, ACLr, and AKP and is often observed bilaterally and is commonly reported in patients.
References
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Journal ArticleDOI
Muscular coactivation The role of the antagonist musculature in maintaining knee stability
TL;DR: It was concluded that coactivation of the antagonist is necessary to aid the ligaments in maintaining joint stability, equalizing the articular surface pressure dis tribution, and regulating the joint's mechanical imped ance.
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The synergistic action of the anterior cruciate ligament and thigh muscles in maintaining joint stability
Moshe Solomonow,Richard V. Baratta,B.-H. Zhou,Hiromu Shoji,W. Bose,C. Beck,Robert D'Ambrosia +6 more
TL;DR: The antagonist muscles (hamstrings) were clearly demonstrated to assume the role of joint stabilizers in the patient who has a deficient ACL, and the importance of an appropriate muscle-conditioning rehabilitation program in such a patient is substantiated.
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Strength increases from the motor program: comparison of training with maximal voluntary and imagined muscle contractions.
Guang Yue,Kelly J. Cole +1 more
TL;DR: The results indicate that training-induced changes of synergist and antagonist muscle activation patterns may have contributed to force increases in some of the subjects, adding to existing evidence for the neural origin of strength increases that occur before muscle hypertrophy.
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Proprioception in the anterior cruciate deficient knee
TL;DR: Proprioception was quantified in a group of patients who had documented complete ACL tears andMultivariate analysis demonstrated that changes recorded in the propriocep tion of the injured knee were attributable to the loss of the ACL rather than to other variables.