Chondromalacia patellae
Conditions
Interventions
Group A (n=10) (Gait retraining with focus on impact): the gait retraining protocol will be made 4 times a week, with a gradual duration of 15 to 30 minutes, for two weeks. It will be two supervised s
Other
Sponsors
Universidade de Brasília
Universidade de Brasília
Eligibility
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: Rearfoot runners with step rate under 170 steps/minute, age between 18 and 45 years, minimum pain levels of 3/10 on the Visual Analogue Scale (VAS) during running and one task among squatting, climbing, and descending steps, kneeling, and extending the knee with resistance, and being comfortable running at a speed of 10-12 km/hour.
Exclusion criteria
Exclusion criteria: Other diseases in the lower limbs, history of surgery in the lower limbs in the last year, and not showing interest to adhere to a strict running retraining protocol for 2 weeks.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pain: it will be evaluated through the Visual Analogue Scale (VAS) that consists of a numeric scale of 0 to 10 points, where 0 means absence of pain and 10 means the greatest pain experienced. It will be considered the usual pain and running pain. Pain will be evaluated before and after the intervention. ;Functionality: it will be evaluated through the Scoring Patellofemoral Disorders Questionnaire that consists of a questionnaire translated and validated into the Portuguese language containing 13 questions that assess the severity of the symptoms and the limitation in different activities related to patellofemoral pain. Presents a score of 0 to 100, where lower scores refer to the worst functionality. The functionality will be evaluated before and after the intervention. ;Lower limbs Kinematics during running: will be assessed through digital videos using two webcams (MyoVideo 139 HD Color Webcam) sampling at 30 frames per second and two leds (LED Floodlight). Reflective markers will be placed on the manubrium sterni and bilateral on the anterior superior iliac spine (ASIS), greater trochanter, lateral femoral epicondyle, fibular head and lateral malleolus. All participants will be instructed to run in 10-12 km/ hour on a motorized treadmill (Movement XL 1600). The frontal plane camera will be placed on a portable tripod perpendicular to the frontal plane at a height of 1.30m and a distance of 2.55m from the treadmill. The sagittal plane camera will be placed on a portable tripod, perpendicular to the sagittal plane at a height of 1.15m, and a distance of 2.50m from the treadmill. The video recordings will be analyzed using the software MyoResearch 3.14 - MyoVideo (Noraxon U.S.A. Inc.) In the frontal plane the angles assessed will be: contralateral pelvic drop; hip adduction. These angles will be evaluated during the midstance. In the sagittal plane the angles assessed will be: foot inclination; tibia inclination; ankle dorsiflexion; knee flexion (the first two w | — |
Secondary
| Measure | Time frame |
|---|---|
| Functionality: it will be evaluated through the Scoring Patellofemoral Disorders Questionnaire that consists of a questionnaire translated and validated into the Portuguese language containing 13 questions that assess the severity of the symptoms and the limitation in different activities related to patellofemoral pain. Presents a score of 0 to 100, where lower scores refer to worst functionality. Functionality will be evaluated 6 months after the protocol. ;Lower limbs Kinematics during running: will be assessed through digital videos using two webcams (MyoVideo 139 HD Color Webcam) sampling at 30 frames per second and two leds (LED Floodlight). Reflective markers will be placed on the manubrium sterni and bilateral on the anterior superior iliac spine (ASIS), greater trochanter, lateral femoral epicondyle, fibular head and lateral malleolus. All participants will be instructed to run in 10-12 km/ hour on a motorized treadmill (Movement XL 1600). The frontal plane camera will be placed on a portable tripod perpendicular to the frontal plane at a height of 1.30m and a distance of 2.55m from the treadmill. The sagittal plane camera will be placed on a portable tripod, perpendicular to the sagittal plane at a height of 1.15m, and a distance of 2.50m from the treadmill. The video recordings will be analyzed using the software MyoResearch 3.14 - MyoVideo (Noraxon U.S.A. Inc.) In the frontal plane the angles assessed will be: contralateral pelvic drop; hip adduction. These angles will be evaluated during the midstance. In the sagittal plane the angles assessed will be: foot inclination; tibia inclination; ankle dorsiflexion; knee flexion (the first two will be evaluated during initial contact while the last two during midstance). In the frontal plane, the deepest landing position (near midstance) will be determined visually by slowly advancing the video frame by frame. Since the cameras are synchronized this position will also be used to determine the midstance in th | — |
Countries
Brazil
Contacts
Public ContactJosé Roberto de Souza Júnior
Universidade de Brasília
Outcome results
None listed