Neuromuscular Control in Individuals Following ACL-Reconstruction
Anterior Cruciate Ligament Injuries, Quadriceps Muscle Atrophy
About this trial
This is an interventional treatment trial for Anterior Cruciate Ligament Injuries
Eligibility Criteria
Inclusion Criteria:
• Ages 18-45
- At the time point of return to play progression following ACL Reconstruction
- Physically active individuals based on current ACSM guidelines of 30 minutes of moderate-intensity daily physical activity three days a week)
Exclusion Criteria:
Subjects who are known to be pregnant (self-reported)
- Subjects diagnosed with malignancy
- Subjects with serious infection near the lower limb
- Subjects with known muscular abnormalities
- History of cardiopulmonary disorder
- Subjects with a previous history of stroke
- History of neurological or psychiatric disorders including poorly controlled migraine headaches, seizure disorder, history or immediate family history of seizures and/or epilepsy
- Subjects with any type of neuropathy (numbness and tingling)
- Subjects with a clinical diagnosis of multiple sclerosis (MS) or Parkinson's Disease
- Implanted biomedical device (active or inactive implants (including device leads), including deep brain stimulators, cochlear implants, and vagus nerve stimulators)
- History of skull fracture
- Subjects who have any metal implants anywhere in their head, neck or shoulders
- Patients taking any medications, which may influence cortical excitability, which could influence neurophysiologic measures) and affect objective clinical data (e.g. antispastics, anxiolytics, hypnotics, ant-epileptics)
- Subjects who are prescribed medications which may influence cortical excitability, which could influence neurophysiologic measures) and affect objective clinical data (e.g. antispastics, anxiolytics, hypnotics, ant-epileptics), will not be able to remain in the study.
- Unable to provide consent.
Sites / Locations
- University of Virginia
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
Visuomotor Therapy
Passive Motion
Patients were seated in the isokinetic dynamometer with their hips flexed to 85º. A target sine wave with a maximum amplitude of 30% MVIC and a minimum amplitude of 5% MVIC and a frequency of 0.128 Hz was visually presented to the patient.31 The patient was instructed to match their torque to the presented target throughout the duration of testing. Each visuomotor therapy trial was 60-seconds, followed by 30-seconds of rest for 10 repetitions, totaling 15 minutes.
Patients were seated in the isokinetic dynamometer with their hips flexed to 85º. The dynamometer then passively moved the patient from 80º to 120º of knee flexion for 60-seconds, followed by 30-seconds of rest for 10 repetitions, totaling 15 minutes. The patient was provided visual feedback of their knee position throughout the trials. The patient was instructed to relax their knee throughout the intervention.