Veranopolis

Researchers are evaluating how eccentric training affects the rehabilitation of patients undergoing Anterior Cruciate Ligament Reconstruction ACL-R. This randomized controlled trial includes thirty-four participants who will be assigned to either a Conventional Training Group CTG or an Eccentric Training Group ETG. Both groups will follow the same post-surgical rehabilitation program starting in the first week after ACL-R and continuing until they meet criteria to return to sports. The rehabilitation is divided into four phases immediate post-operative, preparatory, general acquisition, and specific acquisition phases. Participants in the CTG will perform exercises with equal focus on concentric and eccentric muscle phases, maintaining a constant load with each phase lasting 2 seconds. In contrast, the ETG will prioritize the eccentric phase, performing the concentric phase bilaterally in about 1 second followed by a unilateral eccentric phase lasting about 3 seconds. Assessments will occur at three time points immediately after surgery, at 12 weeks post-surgery before training begins, and at 25 weeks post-surgery after training ends. Throughout the study, participants will undergo evaluations of knee extensor maximum isometric strength, which is the primary outcome. Secondary measures include knee flexor strength, leg press dynamic strength, muscle atrophy, self-reported functional impairments, jump test performance, and psychological readiness to return to sport. These assessments take place at 12 and 25 weeks post-surgery to monitor progress and rehabilitation effectiveness.

Researchers are evaluating the effectiveness of neuromuscular electrical stimulation combined with voluntary muscle contraction compared to stimulation without voluntary contraction during the first month of rehabilitation after anterior cruciate ligament reconstruction ACLR. This randomized controlled trial involves 40 patients who recently underwent ACLR surgery, aiming to improve muscle strength and function during recovery. The study focuses on measuring the maximal strength of knee extensors as the main outcome, with additional assessments of muscle size, knee pain, swelling, joint movement, and functional ability. Participants are randomly assigned to one of two groups one group receives neuromuscular electrical stimulation paired with voluntary quadriceps contractions NMES group, while the other group receives electrical stimulation alone without voluntary contraction NMES group. Both groups follow the same rehabilitation program during the first month after surgery, which addresses symptom management, inflammation control, swelling reduction, joint mobility improvement, and muscle function restoration. Assessments occur at four time points before surgery and at 2, 15, and 30 days after ACLR. These evaluations include strength testing, muscle size measurement, self-reported function, knee pain and swelling checks, range of motion tests, and quadriceps activation status. The study monitors progress closely during the first month of rehabilitation to understand how the two stimulation methods affect recovery. Total participation lasts through the first 30 days after surgery.