CompletedNot Applicable

Whey and Soy Protein Supplementation in Football Players

Greece10 participantsStarted 2018-11-08

Plain-language summary

In a constant effort to find ways to make a quicker recovery between demanding workouts and football matches, this study is the first to investigate the benefits of protein supplementation, and compares two types of proteins, an animal-derived (whey) and a plant-derived (soy) protein, after an exercise-induced muscle injury caused by a speed endurance training protocol. Soy protein could be a cheaper and more environment-friendly alternative for athletes involved in high-velocity strength training.

Who can participate

Age range18 Years – 25 Years

SexMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Playing at a competitive level (top three divisions) for ≥3 years * Free of any recent history of illnesses, musculoskeletal problems and metabolic diseases * No use of supplements and medications (for ≤6 months prior to the study) * Non-smokers Exclusion Criteria: * A known milk intolerance or allergy * A recent febrile illness * History of muscle lesion * Lower limb trauma * Metabolic diseases.

What they're measuring

Change in field activity during the speed-endurance production training (SEPT)

Timeframe: Throughout the SEPT sessions in all trials

Change in heart rate during the speed-endurance production training (SEPT)

Timeframe: Throughout the SEPT sessions in all trials

Change in creatine kinase in plasma

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.

Change in repeated sprint ability (RSA)

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1

Change in countermovement jump (jump height in centimeters)

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1

Change in isokinetic strength of lower limbs

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1

Change in maximal voluntary isometric contraction (MVIC) of lower limbs

Timeframe: Baseline; Post-loading (Day 7); 1, 2 and 3 hours post-SEPT session 1; 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.

Trial details

NCT IDNCT03753321

SponsorUniversity of Thessaly

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2019-01-20

View on ClinicalTrials.gov More Skeletal Muscle Damage trials

Plain-language summary

Who can participate

Age range18 Years – 25 Years

SexMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

Change in field activity during the speed-endurance production training (SEPT)

Timeframe: Throughout the SEPT sessions in all trials

Change in heart rate during the speed-endurance production training (SEPT)

Timeframe: Throughout the SEPT sessions in all trials

Change in creatine kinase in plasma

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.

Change in repeated sprint ability (RSA)

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1

Change in countermovement jump (jump height in centimeters)

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1

Change in isokinetic strength of lower limbs

Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1

Change in maximal voluntary isometric contraction (MVIC) of lower limbs

Timeframe: Baseline; Post-loading (Day 7); 1, 2 and 3 hours post-SEPT session 1; 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.