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.
Age range
18 Years – 25 Years
Sex
MALE
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
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.
Change in delayed onset of muscle soreness
Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.
Change in total antioxidant capacity in plasma
Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.
Change in protein carbonyl levels in plasma
Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.
Change in GSH levels in red blood cell lysate
Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) and 48 hours (Day 10) following SEPT session 1.
Change in sprint time
Timeframe: Baseline; Post-loading (Day 7); 24 hours (Day 9) following SEPT session 1