M23.81
Conditions
Interventions
Group 1: Sensorimotor training (8 weeks, 2 sessions per week, 30 minutes per session) in a 1:1 setting in former patients with an anterior cruciate ligament injury
Group 2: Standard Care
Sponsors
Berner Fachhochschule für Gesundheit, Physiotherapie
Eligibility
Sex/Gender
All
Age
18 Years to 50 Years
Inclusion criteria
Inclusion criteria: - 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
Exclusion criteria
Exclusion criteria: - 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, vestibular, or peripheral vascular diseases, acute infection, alcohol abuse, current pain medication, other injury of the lower extremity especially at the hip and ankle (in the last 6 months), back pain, trunk injury, thrombosis, pregnancy, dementia - Concussion within the past 6 months - Metal implants in the head or face - Severe headache/ migraine - Musculoskeletal disorders refraining from test protocol - Effusion with/without pain - Prone to seizures and/or blackouts
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 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). The primary outcome measure is measured by surface EMG and is defined as the neuromuscular activity during three voluntary tasks: - stairway walking (weight acceptance, M.semitendinosus) - jumping (postlanding, M.semitendinosus) - single leg stance with open, and closed eyes, respectively and one unvoluntary task: - artificial tibia translation/ stretch-reflex (medium latency response, M.semitendinosus) | — |
Secondary
| Measure | Time frame |
|---|---|
| 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). EMG (Normalized EMG value [µV·µV-1], (% EMG)) : Time interval in gait and jump phase for stair ascent/descent - Preactivation (-150ms to initial touchdown) - Weight acceptance - Push-off Time interval after onset of tibia translation (hamstring stretch-reflex) - -50-0 ms background activity / preactivation - 20-40 ms short latency response (SLR) - 40-60 ms medium latency response (MLR) - 60-95 ms late latency response (LLR) EEG: Hamstring stretch-reflex - Theta at specific regions of interest - Alpha-1 at specific regions of interest - Alpha-2 at specific regions of interest Single leg stance with open and closed eyes - Theta at specific regions of interest - Alpha-1 at specific regions of interest - Alpha-2 at specific regions of interest Jumping height in m during single leg vertical jump Jumping distance in m during single leg triple hop Center of pressure excursion during single leg stances | — |
Countries
Switzerland
Contacts
Public ContactHeiner Baur
Berner Fachhochschule für Gesundheit, Physiotherapie
Outcome results
None listed