Clinical trial NCT04690127: Muscle Architecture and Anterior Cruciate Ligament
Official title: The Effects of Plyometric Training on Vastus Lateralis and Biceps Femoris Muscle Architectures in Individuals Undergoing Anterior Cruciate Ligament Reconstruction
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: NA
Conditions: Anterior Cruciate Ligament Injuries
Keywords: biceps femoris
vastus lateralis
muscle architecture
anterior cruciate ligament
plyometric training
action observation
motor imagery
fiber length
pennation angle
muscle thickness
function
Lead sponsor: Hacettepe University
Sponsor class: OTHER
First posted: 2020-12-30
Enrollment: 40
Sex: ALL
Minimum age (years): 18
Maximum age (years): 35
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Parallel group randomized controlled trial
Primary purpose: PREVENTION

Brief summary: The aim of this study is to examine the effects of plyometric training on biceps femoris longus (BFl) and vastus lateralis (VL) muscle architecture in individuals with anterior cruciate ligament reconstruction (ACLR). Individuals will be randomly placed into training and control groups. Measurements of muscle architecture will be taken bilaterally from BFl and VL muscles by means of an ultrasound device. Functional performance will be evaluated with the International Knee Documentation Committee score and the single leg jump test. Following the initial evaluations, individuals in the training group will receive plyometric training. Evaluations of muscle architecture and functional performance will be taken again from the individuals in the training and control groups at the end of the 4th and 8th weeks. The received ultrasound images will be calculated through the MicroDicom software. In-group and between-group comparisons will be analyzed using the Statistical Package for the Social Sciences program and appropriate tests.

Detailed description: Anterior cruciate ligament (ACL) injuries are common, especially in young individuals participating in rolling and jumping activities. After injury, many people undergo ACL reconstruction (ACLR) surgery. The aim of this study is to examine the effects of plyometric training on biceps femoris longus (BFl) and vastus lateralis (VL) muscle architecture (fiber length, penation angle and muscle thickness) in individuals with ACLR. Individuals who have undergone ACLR in this study, which is designed as a parallel group randomized controlled study, will be randomly placed into two different groups, the training group and the control group. Imagery ability, self-efficacy and motivation will be evaluated with various questionnaires and scales in order to compare the homogeneity of the groups. Measurements of muscle architecture will be taken bilaterally from BFl and VL muscles by means of an ultrasound device. Functional performance will be evaluated with the International Knee Documentation Committee score and the single leg jump test. Following the initial evaluations, individuals in the training group will receive plyometric training consisting of ten different exercises for 8 weeks, 3 sessions per week. In this training, individuals will not participate in a real plyometric training. Volunteers will watch videos to be prepared (action observation) and imagine them performing those exercises (motor imagery). Except for one session that will be applied every two weeks, all other trainings will be given on the basis of telerehabilitation via distance education tools. Cognitive fatigue at the beginning and end of the session; at the end of each session, the technical quality and efficiency of the training will be evaluated. Evaluations of muscle architecture and functional performance will be taken again from the individuals in the control and training groups at the end of the 4th and 8th weeks. The received ultrasound images will be calculated through the MicroDicom software. In-group and between-group comparisons will be analyzed using the Statistical Package for the Social Sciences program and appropriate tests.

Eligibility criteria: Inclusion Criteria:

* Volunteers with unilateral anterior cruciate ligament reconstruction (ACLR)
* Volunteers using hamstring autograft in their ACLR
* Volunteers who have passed 1-5 years after their ACLR

Exclusion Criteria:

* Those who underwent same-side meniscus repair other than ACLR
* Those who have had revision surgery
* Those who had posterior cruciate ligament rupture in addition to anterior cruciate ligament
* Third-degree tears in the lateral or medial collateral ligaments
* Those with 2nd or 3rd degree strain injuries in hamstring and quadriceps muscle groups
* Those with a history of congenital, neurological, orthopedic, rheumatologic and cardiopulmonary pathology or anomalies,
* Those with serious systemic diseases

Relative Exclusion Criteria:

* Those with acute infection or pain
* Those with joint instability
* Those with a body mass index of 30 and above
* Those receiving energy supplements or ergogenic assistance during or during the 6-month period prior to work

Primary outcomes:
measure: Muscle Architecture Change-1
timeFrame: Before, at the end of the fourth week and the eighth week
measure: Muscle Architecture Change-2
timeFrame: Before, at the end of the fourth week and the eighth week
measure: Muscle Architecture Change-3
timeFrame: Before, at the end of the fourth week and the eighth week
Secondary outcomes:
measure: Functional Performance Change-1
timeFrame: Before, at the end of the fourth week and the eighth week
measure: Functional Performance Change-2
timeFrame: Before, at the end of the fourth week and the eighth week
Other outcomes:
Locations:
city: Ankara
country: Turkey
facility: Hacettepe Üniversitesi
state: Türkiye
Study officials:
References: