None listed
Conditions
Interventions
PLA group:Placebo group (PLA): Participants ingested identical opaque capsules filled with starch without ß-alanine. After 15 minutes of seated rest, participants consumed the placebo capsules togethe
ß20group:20 mg/kg ß-alanine group (ß20): Participants received ß-alanine at a dose of 20 mg per kilogram of body mass. ß-alanine was encapsulated in opaque capsules visually identical to the placebo c
ß40group:40 mg/kg ß-alanine group (ß40): Participants were administered ß-alanine at a dosage of 40 mg per kilogram of body mass. ß-alanine was filled into opaque capsules identical in appearance to t
Sponsors
Beijing Sport University
Eligibility
Sex/Gender
Male
Age
18 Years to 25 Years
Inclusion criteria
Inclusion criteria: 1. Male, aged 18–25 years; 2. Regularly engaged in sprint or sprint-related training; 3. Capable of completing the 35-m repeated sprint test; 4. No known history of adverse reactions or significant intolerance to ß-alanine intake; 5. No severe lower limb joint injuries, lumbar injuries or other sports injuries that may interfere with sprint tests in the past 3 months; 6. Able to comply with restrictions on diet, fluid intake, exercise and supplements prior to the trial; 7. Voluntarily participate in the study and sign written informed consent.
Exclusion criteria
Exclusion criteria: 1. Suffering from cardiovascular, respiratory, neuromuscular, renal, metabolic or endocrine diseases deemed unsuitable for maximal-intensity sprint tests by researchers; 2. Having lower limb joint, muscle, tendon, ligament or lumbar injuries within the past 3 months that may impair sprint performance or increase exercise risks; 3. Having confirmed allergies or severe intolerance to ß-alanine, capsule ingredients or placebo ingredients; 4. Regularly taking ß-alanine or other supplements or drugs that may significantly affect high-intensity exercise performance, acid-base balance or fluid regulation recently; 5. Being unable to follow pre-trial requirements including refraining from strenuous exercise, controlling diet and fluid intake, and avoiding relevant supplement intake; 6. Being unable to complete familiarization trials or formal repeated sprint tests; 7. Having other conditions judged by researchers to render participants ineligible for this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 35-m repeated sprint performance;Sweat osmolality;Urine osmolality; | — |
Secondary
| Measure | Time frame |
|---|---|
| Urine pH;Heart rate;Ratings of perceived exertion (RPE); | — |
Countries
China
Contacts
Public ContactMei Tao
Beijing Sport University
Outcome results
None listed