Hamstring Injury
Conditions
Keywords
Hamstring Injury, Flywheel Inertial Resistance, Hamstring architecture, Ultrasound, Eccentric
Brief summary
Investigate the efficacy of the inercial Flywheel training protocol in modifying the architecture and function of the hamstrings in patients with a history of structural muscle injury vs conventional training. The researchers hypothesize that inercial Flywheel training protocol will be a useful strategy in the modification of the architecture and function of the hamstring in patients with a history of indirect structural muscle injury and decrease the recurrence.
Detailed description
Randomized controlled intervention study
Interventions
BEHAVIORALExercises program for hamstring architecture and function
To assess the effectiveness of the inertial flywheel resistance program in the architecture and function of the hamstrings post structural hamstring injury
Sponsors
Instituto Oulton
Universidad Nacional de Córdoba
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
MALE
Age
18 Years to 50 Years
Healthy volunteers
No
Inclusion criteria
* Adults with history of structural muscle injuries type 3 of the Munich Consensus classification for muscular injuries, confirmed by imaging diagnosis no more than 2 years ago. * The patient must have performed conventional medical and physiotherapy treatment * Have Returned to their usual sporting activity * With good mental health.
Exclusion criteria
* Suffer from a systemic pathology that could alter the healing biology of the muscle. * Present other lesions in the muscular group of extrinsic characteristic or not encompassed within type 3 structural lesions such as, for example, proximal or distal insertion tendinopathy, use of semitendinous as anterior cruciate ligament graft. * Prior knee or hip surgery. * Having been infiltrated with platelet rich plasma in the posterior thigth region in the previus 3 months before startin the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in the architecture and morphology of the hamstring | 0 and 8 week | To assess change in architecture and morphology of the hamstring at 8 week. It will be performed by a medical specialist in diagnostic imaging with a A GE Voluson 730 Expert model ultrasound machine , with 6-12 MHz linear transducer. Panoramic images of the long portion of the biceps femoris and semitendinosus will be taken from its proximal insertion, In each muscle, muscle thickness, fascicle length, penetration angle and physiological cross-sectional area will be evaluated. |
| Change in Maximun isometric strength | 0 and 8 week | To assess change in maximum isometric strength of hamstring in Newton (N). It will be measured in 3 repetitions with a hand dynamometer at two knee flexion angles. |
| Change in Rate of force development | 0 and 8 week | To assess change in rate of force development of hamstring in N/seg at 8 week. it will be measured in 3 repetitions with a hand dynamometer at two knee flexion angles. |
| Change in Maximun eccentric strength | 0 and 8 week | To assess the maximum eccentric strength of hamstring in Newton (N) from basiline. It will be measured in 3 repetitions with a hand held dynamometer. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Maximum Hip Flexion Active Knee Extension (MHFAKE) Test | 0 and 8 week | to assess change in amplitude of movement of the hamstring in degrees with inclinometer |
| Change in Oslo hamstring injury screening questionnaire | 0 and 8 week | Self-administered questionnaire. The hamstring injury detection test will be carried out to assess the previous injury, symptoms, function and quality of life of these players with the Oslo hamstring injury screening questionnaire questionnaire.This tool is divided in 23 items within 5 categories: symptoms, discomfort, pain depending on daily activity, sports and quality of life for injuries in right or left hamstrings |
| Change in Test of a 1RM eccentric | 0 and 8 week | To assess the maximun eccentric repetition in a conventional hamstring leg curl in kg |
| Single leg bridge test. Change in resistance of hamstring | 0 and 8 week | to assess the ability or resistance of the hamstring in repetition numbers |
| Functional scale of the lower limb | In the week before the 1st session of the protocol | Self-reported patient-specific outcome measure assess functional change, primarily in patients presenting with musculoskeletal disorders. Patients are asked to identify up to 3 important activities they are unable to perform or are having difficulty with as a result of their problem. In addition to identifying the activities, patients are asked to rate, on an 11-point scale, the current level of difficulty associated with each activity. Following the intervention, patients are asked again to rate the activities previously identified. the lower limb will be used in its version validated in Argentina |
| Adverse events | week 8 | To capture all adverse events and side effects that occurred after exercises protocol. Patients reported any changes or any symptoms. If a question was answered yes, we asked for further comments To capture all adverse events and side effects that occurred after exercises protocol. Patients reported any changes or any symptoms. If a question was answered yes, we asked for further comments |
| Adherence self-report questionnaire | week 8 | Patients were asked to choose one of six descriptions (from level 1 = perfect adherence to level 6 = nonadherence) to express exercise treatment at the end of the twelve weeks study period. |
Countries
Argentina
Outcome results
None listed