Creatine, Patellar Tendinopathy
Conditions
Keywords
Ergogenic aid, Dietary, Injury, Nutrition, Sport Nutrition
Brief summary
The aim of this study are to analyze the effect of creatine ingestion in pain, histological properties of the tendon, body composition, strength and vertical jump performance in athletes with patellar tendinopathy that follow a physical rehabilitation program that include eccentric exercise combined with stretching and extracorporeal shock wave therapy.
Detailed description
Nutrition could play an important role in the rehabilitation from sport injuries. This afirmation is based on studies that analyze the impact of different dietary supplements along immobilization periods, stablishing that creatine, leucine and omega-3 fatty acid supplementation could ameliorate muscle loss, while creatine could potentiate the hypertrophy along the rehabilitation process. For this reason, the aim of this study are to analyze the effect of creatine ingestion in pain, histological properties of the tendon, body composition, strength and vertical jump performance in athletes with patellar tendinopathy that follow a physical rehabilitation program that include eccentric exercise combined with stretching and extracorporeal shock wave therapy.
Interventions
DIETARY_SUPPLEMENTCreatine supplementation
The supplements were provided in capsules of 1 g of red color not transparent Guinama S.L.U, 0044634, La Pobla de Valbona, Spain) which were prepared with a Capsunorm 2000 semi-automatic manual capsule filling machine (Miranda del Ebro, Spain). Capsules contained creatine monohidrate (Creapure, Crown Sport Nutrition, Arnedo, Spain)
DIETARY_SUPPLEMENTPlacebo
The supplements were provided in capsules of 1 g of red color not transparent Guinama S.L.U, 0044634, La Pobla de Valbona, Spain) which were prepared with a Capsunorm 2000 semi-automatic manual capsule filling machine (Miranda del Ebro, Spain). Capsules contained placebo (i.e., sucrose)
Sponsors
Universidad de Córdoba
University of Bologna
Technical University of Madrid
Lavras University
Universidad Pontificia Comillas
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Masking description
A researcher who did not have any contact with the participants and the physiotherapist who performed the physical rehabilitation intervention and the assessments randomly divided the participants to the creatine or placebo groups in a computerized random list with a 1:1 allocation using the software Research Randomizer (www.randomizer.org).
Eligibility
Sex/Gender
MALE
Age
18 Years to 49 Years
Healthy volunteers
No
Inclusion criteria
* Athletes diagnosed with patellar tendinopathy by sport medicine doctor. * Age (\>18 years and \<49 years). * To be federated in a sport modality that involves high repetitive impact in the knee; iii) to train more than 3 sessions weekly. * Not having undergone knee surgery. * Not having undergone any infiltration of analgesics or platelet-rich plasma during the last year. * Not intake any sport performance supplement in the previous year; * Smoker person.
Exclusion criteria
* Not being diagnosed with patellar tendinopathy by a doctor * Age (\<18 years and \> 50 years). * Involved in a sport modality without high repetitive impacts during sports activity.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pain evaluation | 8-weeks | For assessing pain, the Victorian Institute for Sports Assessment - Patella (VISA - P), the most widely used patient-reported outcome measure (including symptom severity), was administered . The VISA - P will be scored with a maximum of 100 points and the higher scores indicate better function, and it shows sensible to identify improvements in therapeutic interventions among patients with tendinopathies. |
| Tendon thickness. | 8-weeks | Thickness Tendon of the injuried knee/s was analyzed with ultrasound (GE VENUE 40, Portable Ultrasound, CA, USA), and a linear translator. Participants were positioned supine with a 30º knee flexion (using a roller under the knees), reducing the locking of the patella in the femur as in full extension. Ultrasound gel was applied and evaluated by placing the probe longitudinally; in pathological tendons it is the only way to determine the distance of the measurement point from the insertion of the tendon. Thus, subsequent measurements were always made from the same point. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Neuromuscular function | 8-weeks | Participants performed a neuromuscular test battery consisted in measuring vertical jump capacity (i.e., countermovement jump) and knee extension muscle strength muscular strength in a knee extension machine (Selection Leg Extension, Technogym, Cesena, Italy) with a 5 maximum number of repetitions (5-RM) |
Countries
Spain
Outcome results
None listed