Effect on Active Knee Joint Stabilization of a Specific-Targeted Sensorimotor Training Compared to Standard Care in Persons After ACL Reconstruction - A Randomised Controlled Trial
- Conditions
- M23.81
- Registration Number
- DRKS00033891
- Lead Sponsor
- Berner Fachhochschule für Gesundheit, Physiotherapie
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Pending
- Sex
- All
- Target Recruitment
- 50
Physically active before injury (2x 45 min per week)
- Clinically confirmed ACL rupture and reconstruction with a quadriceps tendon graft
- Able to run, climbing stairs and perform one-leg jumps without perceiving pain during these movements
- A limb symmetry index >90% for maximum strength performance capacity of knee extension & flexion and single leg hop performance
- Former knee pathology before initial ACL injury. This includes former ruptures to the ACL, meniscal tears and/or direct trauma to the cartilage as well as other knee ligament injury
- Anamnestic exclusion of cardiac, neurologic, or peripheral vascular diseases, acute infection, alcohol abuse, current pain medication, other injury of the lower extremity especially at the hip and ankle, back pain, trunk injury, thrombosis, pregnancy, dementia
- Musculoskeletal disorders refraining from test protocol
- Effusion with/without pain
- Prone to seizures and/or blackouts
Study & Design
- Study Type
- interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method The primary outcome will be measured at measuring timepoint 0 (9-10 months after ACL reconstruction) and at the follow up measuring timepoint 1 (after 8 weeks of intervention).<br>The primary outcome measure is measured by surface EMG and is defined as the neuromuscular activity during two voluntary tasks: <br>- stairway walking (weight acceptance, M.semitendinosus) <br>- jumping (postlanding, M.semitendinosus) <br>and one unvoluntary task: <br>- artificial tibia translation/ stretch-reflex (medium latency response, M.semitendinosus)
- Secondary Outcome Measures
Name Time Method The secondary outcomes will be measured at measuring timepoint 0 (9-10 months after ACL reconstruction) and at the follow up measuring timepoint 1 (after 8 weeks of intervention).<br>EMG (Normalized EMG value [µV·µV-1], (% EMG)) :<br>Time interval in gait and jump phase for stair ascent/descent <br>- Preactivation (-150ms to initial touchdown) <br>- Weight acceptance <br>- Push-off <br>Time interval after onset of tibia translation (hamstring stretch-reflex) <br>- -50-0 ms background activity / preactivation <br>- 20-40 ms short latency response (SLR) <br>- 40-60 ms medium latency response (MLR) <br>- 60-95 ms late latency response (LLR) <br><br>EEG: Hamstring stretch-reflex <br>- Theta at specific regions of interest <br>- Alpha-1 at specific regions of interest <br>- Alpha-2 at specific regions of interest <br><br>Jumping height in m during single leg vertical jump <br>Jumping distance in m during single leg triple hop