Quadriceps Strengthening ACL Reconstruction
ConditionACL Tear
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age13-17
SponsorStanford University
About this trial
The purpose of this study is to characterize quadriceps function and squat biomechanics during the early strengthening phase in adolescent patients undergoing a standardized combined neuromuscular electrical stimulation (NMES) and blood flow restriction (BFR) rehabilitation protocol
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
no history of knee injury/surgery of the contralateral limb
Disqualifiers
(1) bilateral knee injuries
(2) prior knee ligament injury and/or surgery
(3) multiple ligament injuries and/or ruptures
(4) conditions in which NMES and BFR are contraindicated
Trial design
Design model
Single group
Treatments tested in this trial
NMES and BFR
Other interventionNMES is applied when patients perform quadriceps strengthening exercises. BFR is applied during compound exercises.
Standard physical therapy
Other interventionStandard physical therapy (week 1-16) includes interventions for typical impairments following ACLR. The initial phase will focus on pain and effusion control, restoration of knee range of motion, followed by gait normalization, lower extremity strength training, then running and plyometrics.
Treatment groups
20 Participants
are divided into 1 treatment groupGroup A: Additional neuromuscular electrical stimulation (NMES) and blood flow restriction (BFR)Experimental treatment 2 interventions
Trial outcomes
Primary outcomes
1
Peak force as measured by isometric knee extension force test
Isometric knee extension force will be measured with a dynamometer.
Time frame
12 and 16 weeks post surgery2
Force steadiness as measured by isometric knee extension force test
Isometric knee extension force will be measured with a dynamometer
Time frame
12 and 16 weeks post surgerySecondary outcomes
1
Sagittal plane peak angle at the hip during the descending phase of the squat
Motion analysis will be conducted using the cloud-based OpenCap application
Time frame
12 and 16 weeks post surgery2
Sagittal plane peak angle at the knee during the descending phase of the squat
Motion analysis will be conducted using the cloud-based OpenCap application
Time frame
12 and 16 weeks post surgery3
Sagittal plane peak angle at the ankle during the descending phase of the squat
Motion analysis will be conducted using the cloud-based OpenCap application
Time frame
12 and 16 weeks post surgerySponsors and contacts
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Source ClinicalTrials.gov