An interventional study of Omega 3 and Isolate whey protein in Muscle Damage, sponsored by Federal University of Health Science of Porto Alegre. Completed at 1 site in Brazil. Open to female participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-03-09.
Sponsored by Federal University of Health Science of Porto Alegre · Not applicable, Interventional, and Prevention
The study is a randomized, double-blinded, placebo-controlled trial that will include the participation of 69 women, aged 18-40 years. The aim of the study is to test nutritional strategies that help to minimize the effects of muscle damage induced by exercise.
The procedures will be performed at the Federal University of Health of Porto Alegre (UFCSPA).
The exercise-induced muscle damage is associated with eccentric activities affecting muscle structural unit through micro-injury that can promote a local inflammatory response, muscle damage and delayed onset muscle soreness. These events can cause an impact on athletic performance and lower adherence to the training programs. To optimize muscle recovery after the damage caused by exercise is essential to ensure adequate caloric intake , with required amounts of macronutrients and micronutrients. Recent studies have been showed that the protein intake before sleeping is a effective strategy to inhibit muscle protein degradation, stimulate muscle protein synthesis and facilitate adaptive response of skeletal muscle to physical exercise. Furthermore, evidences on the use of anti-inflammatory nutrients have suggested that diets rich in omega 3 can reduce inflammation through inhibition of pro-inflammatory mediators. Therefore, the intake of this nutrient combined with a protein meal before sleeps and the control of food intake can improve adherence to sports training. The study will consist of three groups where everyone will receive an individualized diet. A randomization procedure will determine the type of intervention. The distribution of the groups will be as follows: group 1 (control) - volunteers follow individualized diet and olive oil capsules and maltodextrin; group 2 - intervention with omega 3 more individualized diet ; group 3 - omega 3 and whey protein isolate intervention more individualized diet.
The order of procedures to be performed will be: (1) Nutritional and Anthropometric assessment; (2) Individual orientation of diet and distribution of supplements; (3) Baseline assessment (peak torque, muscle pain levels and vastus lateralis and rectus femoris echo intensity; (4) Muscle damage induction by eccentric exercise protocol; (5) Reviews after 24h, 48h, 72h, which will follow the routine and the methods applied at baseline.
Federal University of Health Science of Porto Alegre is the lead sponsor of 118 studies on the registry; 19 are open to participants now.
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Exclusion Criteria:
* 3000mg of olive oil * Eccentric exercise: 100 maximal eccentric contractions of knee extensors, divided into 10 sets of 10 repetitions at intervals of 60 seconds between the series
Dietary Supplement: Omega 3 · Other: Eccentric exercise
* 23g of maltodextrin * Eccentric exercise: 100 maximal eccentric contractions of knee extensors, divided into 10 sets of 10 repetitions at intervals of 60 seconds between the series
Dietary Supplement: Isolate whey protein · Other: Eccentric exercise
* 3000mg of olive oil and 23g of maltodextrin * Eccentric exercise: 100 maximal eccentric contractions of knee extensors, divided into 10 sets of 10 repetitions at intervals of 60 seconds between the series
Dietary Supplement: Omega 3 and Isolate whey protein · Other: Eccentric exercise
3000mg of n-3 oil (2000mg EPA e 1000mg DHA)
23g of protein of whey protein
3000mg of n-3 oil (2000mg EPA e 1000mg DHA) and 23g of protein of whey protein
100 maximal eccentric contractions of knee extensors, divided into 10 sets of 10 repetitions at intervals of 60 seconds between the series
Quadriceps muscle strength evaluation (Peak Torque)
Three maximal isometric contractions of knee extensors will be performed by the isokinetic dynamometer equipment Biodex System 4 Pro (Biodex Medical Systems, USA).
Time frame: One Year
Evaluation of quadriceps muscle pain (Muscle pain levels)
The assessment of pain as muscle damage marker is expressed by a visual analog scale.
Time frame: One year
Vastus lateralis and rectus femoris echo intensity
Ultrasound images
Time frame: One year
Plan to share: Yes
No publications or documents are linked to this record.
This study is completed, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.
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Federal University of Health Science of Porto Alegre