Anterior Cruciate Ligament Rupture, Rehabilitation After ACL Reconstruction
Conditions
Brief summary
ACL injuries represent a major health and economic burden. The overall incidence of ACL injuries has increased and is likely to continue to increase, in part due to increased sports participation. In the acute post-surgical phase there is a period of physiologic recovery from the surgical injury and subsequent relative muscle disuse that is associated with atrophy loss of strength and anterior knee pain. Therefore, improvement of muscle function is a priority in the rehabilitation and reathletization process. To achieve significant muscle hypertrophy as well as a possible subsequent increase in strength, it is widely accepted that resistance exercises with relevant load (\ 70% of the one repetition maximum - 1RM) are necessary; however, in patients undergoing anterior cruciate ligament reconstruction (ACL-R), exercises with high loads are considered unsafe in the early stages and could increase the risk of re-injury. BFR training is an established muscle training and rehabilitation technique in which the blood supply to and from the muscles involved in the exercise is restricted using an external device. Although the physiological mechanisms related to this intervention are not yet well understood, it is thought that in BFR training, despite the low level of mechanical tension, the main driver of myocellular hypertrophy could be metabolic stress that is realized by local accumulation of metabolites. Thus, it seems that hypertrophic adaptations can be induced with much lower exercise intensities using BFR. In fact, when combined with low-load resistance training (e.g., 20% 1RM), training with BFR has shown positive results in increasing muscle volume and strength after ACL-R in complete safety comparable to standard training without BFR. It has also already been demonstrated how incorporating the use of the hockey slideboard into the rehabilitation procedure following ACL-R gives benefits in terms of strength recovery of the extensor muscles of the operated limb with the same safety profiles as standard rehabilitation.
Interventions
OTHERHockey slideboard combined with BFR training
Hockey slideboard combined with BFR training
OTHERHockey slideboard
Hockey slideboard
Sponsors
Spitalul Municipal Odorheiu Secuiesc
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
No
Inclusion criteria
* having undergone ACL-R following a unilateral rupture, with reconstructive surgical technique by bone-patellar tendon-bone autograft (BPTB) or semitendinosus-gracilis autograft (STG) * ACL-R including associated meniscal lesions treated with selective meniscectomy and/or non-complex meniscal suture
Exclusion criteria
* not having undergone ACL-R following a unilateral rupture, with reconstructive surgical technique by bone-patellar tendon-bone autograft (BPTB) or semitendinosus-gracilis autograft (STG)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Adductor muscles maximal voluntary isometric contraction (MVIC) | Before the study intervention (T0) and after the study intervention lasting for four weeks (T1) | Adductor muscles' maximal voluntary isometric contraction (MVIC) measured via hand-held dynamometer test in a supine position |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Abductor muscles maximal voluntary isometric contraction (MVIC) | Before the study intervention (T0) and after the study intervention lasting for four weeks (T1) | Abductor muscles' maximal voluntary isometric contraction (MVIC) measured via hand-held dynamometer test in a supine position |
| Adductor/abductor isometric strength (MVIC) ratio | Before the study intervention (T0) and after the study intervention lasting for four weeks (T1) | Adductor and abductor muscles' maximal voluntary isometric (MVIC) strength ratio measured via hand-held dynamometer test in a supine position |
| Y-balance test (YBT) composite score | Before the study intervention (T0) and after the study intervention lasting for four weeks (T1) | The YBT assessment demands that the athlete maintain balance on one leg while extending the opposite leg as far as feasible in three different directions: anterior, posterolateral, and posteromedial. The YBT composite score is calculated by summing the three reach distances and normalizing them to the lower limb length. |
| Triple hop test for distance | After the study intervention lasting for four weeks (T1) | Triple hop test executed, calculating the maximum reached distance and comparing the healthy limb result with the involved leg. |
| Single hop test for distance | After the study intervention lasting for four weeks (T1) | Single hop test executed, calculating the maximum reached distance and comparing the healthy limb result with the involved leg. |
| Side hop test | After the study intervention lasting for four weeks (T1) | The participant is required to hop from side to side on one limb outside two parallel strips of tape 40 cm apart, and instructed to hop as many hops as possible for 30 seconds. |
Countries
Romania
Contacts
Primary ContactClaudia I Nedelcu, Master, BSc
Backup ContactSebastiano Nutarelli, Master, BSc
Outcome results
None listed