Effects of Eccentric Training in the Rehabilitation of Patients Undergoing Anterior Cruciate Ligament Reconstruction: a Randomized Controlled Trial

Обзор

This study aims to investigate the effects of eccentric training on the functional rehabilitation of patients undergoing Anterior Cruciate Ligament Reconstruction (ACL-R). Thirty-four participants undergoing ACL-R will be randomly assigned to two groups: the Conventional Training Group (CTG) and the Eccentric Training Group (ETG). Both groups will adhere to the same post-surgical rehabilitation program, commencing in the first week after ACL-R and continuing until the criteria for sports resumption are achieved. The rehabilitation program will be structured into four phases: immediate post-operative, preparatory, general acquisition, and specific acquisition. The key distinction between the groups lies in their exercise regimen: ETG will prioritize the eccentric phase of movement, whereas CTG will engage in conventional exercises, maintaining uniform load across both movement phases. Assessment procedures will be conducted at three intervals for all participants: immediately post-operative, at 12 weeks post-ACL-R surgery (before the initiation of the training protocol), and at 25 weeks post-ACL-R surgery (upon completion of the training protocol). The primary outcome measure will be the maximum isometric strength of knee extensors. Secondary outcomes will encompass functional status, maximum isometric strength of knee flexors, peak dynamic strength during leg press, quadriceps muscle atrophy, performance in jump tests, and psychological readiness.

Вмешательства

• Другое Conventional Training
  Patients will execute the concentric and eccentric phases unilaterally, maintaining consistent load levels, with each phase lasting 2 seconds.
• Другое Eccentric Training
  The concentric phase will be performed bilaterally in approximately 1 second, followed by the unilateral eccentric phase lasting approximately 3 seconds.

Первичные конечные точки

• Maximal isometric strength of knee extensors [Срок оценки: In the 12th and 25th weeks post-surgery]

Вторичные конечные точки (6)

• Maximum isometric strength of knee flexors [Срок оценки: In the 12th and 25th weeks post-surgery]
• Maximum dynamic strength during leg press exercise [Срок оценки: In the 12th and 25th weeks post-surgery]
• Muscle atrophy [Срок оценки: In the 12th and 25th weeks post-surgery]
• Self-reported functional impairments [Срок оценки: In the 12th and 25th weeks post-surgery.]
• Performance in jump tests [Срок оценки: In the 12th and 25th weeks post-surgery]
• Psychological readiness to return to sport [Срок оценки: In the 12th and 25th weeks post-surgery.]

Критерии участия

Критерии включения

\- Individuals of both genders, aged between 18 and 40 years, scheduled for ACL reconstruction surgery during the data collection period.

Критерии исключения

• Delay of more than 7 days after surgery to initiate the rehabilitation program proposed by the study;
• Presence of injuries related to the rupture of the ACL that hinder partial weight-bearing in the first week after surgery, either due to medical recommendation or the patient inability/disposition.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Простое слепое

Основная цель

Лечение

Центры проведения

Бразилия · 2 центра

• Private Rehabilitation Center — Veranópolis
• Private Rehabilitation Center — Veranópolis

Идентификаторы

NCT: NCT06905691 · 77855224.0.0000.5345

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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