Patellar tendinitis
Conditions
Interventions
Twenty-eight male athletes will be included in this study and will be randomly allocated to the Heavy Slow Resistance Training Group or Kinect Chain Group, with 14 participants in each group. Both int
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Sponsors
Universidade Federal do Rio Grande do Norte
Universidade Federal do Rio Grande do Norte
Centro Universitário de João Pessoa
Eligibility
Sex/Gender
Male
Age
15 Years to 40 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria for this study will be: male athletes between 15 and 40 years old; Practice physical activities involving high demand for the knee extensor mechanism (volleyball, basketball, handball, soccer, running, etc.) for at least 2 times a week; Present with pain localized in the apex of the patella, patellar tendon or its insertion in the tibial tuberosity, confirmed by palpation; Present with pain during activities that impose load on the patellar tendon (jumping, squatting, etc.) for more than 3 months; Present with pain in the patellar tendon during the single-leg decline squat test; Score less than 88 points on the Victorian Institute of Sport Assessment - Patella (VISA-P) questionnaire.
Exclusion criteria
Exclusion criteria: Athletes will be excluded from the study if they: have been using or have used corticosteroid medication in the last 6 months; Have symptoms related to trauma or who have had knee surgery; have knee symptoms associated with other dysfunctions, such as patellofemoral pain, intra-articular injuries, patellar instability, and Osgood-Schlatter or Sinding-Larsen-Johansson disease.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary outcomes will be assessed before intervention, after six weeks at the end of 12 weeks and six months after the end of the intervention by a researcher not involved with the interventions. The severity of symptoms and disability, as measured by the Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire, will be assessed. VISA-P is an 8-item questionnaire. Six of the eight questions are scored on a Likert scale with scores ranging from 0 to 10, with 10 representing no pain or disability and 0 representing maximum severity of dysfunction. Question 7 is a question like Likert with 4 possible answers (0, 4, 7 or 10). The eighth and last question is divided into three response categories, of which only one should be answered (8A, 8B or 8C), depending on the perception of pain during sports activities. The score VISA-P, which represents the severity of the respondent's condition in terms of ranging from 0 to 100 points, with a maximum score indicating no symptoms and disability. Changes greater than 13 points after interventions in the 13 VISA-P questionnaire are considered clinically relevant (minimal clinically important difference).;Pain will be quantified with the visual analogue scale (VAS) in two ways: the worst pain in the previous week and pain during the single-leg decline squat test. This is a validated provocative test, where the participant, keeping the trunk upright, performs a single leg squat up to 90° of knee flexion positioned with the lower limb affected on a platform with a 25° inclination. The VAS is a reliable and valid tool for the evaluation of individuals with knee pain, with a clinically important minimum difference of 2 cm.;The participants' perception of improvement or worsening will be quantified with the Global Scale of Change. This is a 15-point Likert scale that measures the impression of change in health after a treatment intervention. The scale ranges from -7 (“much worse”) to +7 (“much better”), so that a score 0 in | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes will be assessed before and after the end of interventions, also by a researcher not involved with the interventions. For evaluation of isometric strength of hip and knee extensors and flexors ankle pads will be used a portable hand dynamometer (Lafayette Instrument Company, Lafayette, IN). Four repetitions of each test will be performed. One to familiarize the participant with the procedure, followed by three valid repetitions, which will be used for analysis. In each repetition, you will be asked participant to exert maximum force and maintain that force for 5 seconds with a 15-second interval between repetitions. To measure the strength of the hip extensors, the participant will be positioned supine with the knee of the limb to be tested at 90° of flexion and the dynamometer will be positioned exactly above the popliteal region. An inelastic belt will be placed around the participant's hip and the exam table to stabilize the trunk, and another belt will be positioned at the distal thigh to stabilize the dynamometer and resist movement. The participant will be allowed to use the upper limbs to hold onto the exam table. During the test, the participant will be instructed to “try to move the foot towards the ceiling”. To evaluate the strength of the knee extensors, the participant will be positioned supine, with 30° of knee flexion and approximately 20° of hip flexion. A foam roller will be placed at the back of the knee to maintain the desired angle. The dynamometer will be positioned in the distal region of the limb to be tested between the malleoli, and an inelastic belt will be positioned in the same region to stabilize the equipment and resist movement. In this test, the participant will be asked to “push the knee straight”. The strength of the ankle plantar flexors will be measured with the participant in prone position, with the evaluated lower limb foot positioned outside the stretcher. The dynamometer will be positioned at the head o | — |
Countries
Brazil
Contacts
Public ContactRodrigo Scattone da Silva
Universidade Federal do Rio Grande do Norte
Outcome results
None listed