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Muscle DamageNCT02839525

The Effect of Nutritional Interventions on Exercise-induced Muscle Damage

A study testing Omega 3, Isolate whey protein and Omega 3 and Isolate whey protein in people with Muscle Damage, run by Federal University of Health Science of Porto Alegre at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 40 years, women onlyHealthy volunteers can take part
Conditions the study is for
Muscle Damage
What is being tested?
Omega 3, Isolate whey protein and Omega 3 and Isolate whey protein
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
2 participants
Where
1 siteBrazil
Study dates
26 Jul 2016to 9 Feb 2017
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 18 - 40 years aged
  • BMI 18,5-25kg/m2
  • physical exercise: < 150 minutes per week

Who cannot join

  • pregnancy/ lactation
  • vegetarian/vegan
  • chronic disease
  • pulmonary and neurologic disease
  • muscle injury/knee muscle injury
  • medication use: anti-inflammatory and anticoagulant
  • fish oil and derivate allergy
  • dietary supplements use in the last month: whey protein, casein, albumin, glutamin, meat and soy protein, creatine, branched chain amino acid, high calorie supplement, n-3 supplement and antioxidants

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • UFCSPA

    Porto Alegre, Rio Grande do Sul, 90050-170

Other trials in Brazil

About this study

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).

Read the detailed description

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.

Conditions
Muscle Damage
Being tested
Omega 3, Isolate whey protein, Omega 3 and Isolate whey protein, Eccentric exercise
Keywords
Eccentric exercise, Dietary supplement, Muscle damage

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Omega 3Dietary supplement

    3000mg of n-3 oil (2000mg EPA e 1000mg DHA)

  • Isolate whey proteinDietary supplement

    23g of protein of whey protein

  • Omega 3 and Isolate whey proteinDietary supplement

    3000mg of n-3 oil (2000mg EPA e 1000mg DHA) and 23g of protein of whey protein

  • Eccentric exerciseOther

    100 maximal eccentric contractions of knee extensors, divided into 10 sets of 10 repetitions at intervals of 60 seconds between the series

Study groups in NCT02839525
Study groupRoleWhat they receive
Omega 3Placebo comparator* 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
Receives: Dietary Supplement: Omega 3; Other: Eccentric exercise
Isolate whey proteinPlacebo comparator* 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
Receives: Dietary Supplement: Isolate whey protein; Other: Eccentric exercise
Omega 3 and Isolate whey proteinPlacebo comparator* 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
Receives: Dietary Supplement: Omega 3 and Isolate whey protein; Other: Eccentric exercise

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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).

    Measured: One Year

Secondary outcomes (2)
  1. Evaluation of quadriceps muscle pain (Muscle pain levels)

    The assessment of pain as muscle damage marker is expressed by a visual analog scale.

    Measured: One year

  2. Vastus lateralis and rectus femoris echo intensity

    Ultrasound images

    Measured: One year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jul 2016 (estimated)
  2. Study start26 Jul 2016
  3. Primary completion9 Jan 2017
  4. Study completion9 Feb 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
2 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02839525
Sponsor's protocol ID
51384015.5.0000.5345
Status last verified
Mar 2017
First submitted
13 Jul 2016
Last updated
9 Mar 2017
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Omega 3, Isolate whey protein and Omega 3 and Isolate whey protein in people with Muscle Damage, run by Federal University of Health Science of Porto Alegre at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Mar 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Quadriceps muscle strength evaluation (Peak Torque) (time frame: One Year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Mar 2017.

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