이 페이지는 자동 번역되었으며 번역의 정확성을 보장하지 않습니다. 참조하십시오 영문판 원본 텍스트의 경우.

An Initial Investigation Into the Effects of β-Alanine on Performance and Physiological Responses During Simulated Wrestling Matches

2026년 6월 8일 업데이트: China Medical University Hospital
This research aims to investigate the effects of beta-alanine (BA) supplementation on simulated 2-day freestyle wrestling performance, as well as on exercise-induced muscle fatigue and oxidative stress in wrestlers. In addition to the common issue of long-term insufficient energy intake due to weight control, high-intensity training can further exacerbate exercise-induced oxidative stress and muscle fatigue, thereby impairing athletic performance. Therefore, finding effective ergogenic aids to reduce these negative physiological responses is crucial for optimizing athletes' competitive condition. Based on a literature review, this study will implement the Specific Wrestling Performance Test (SWPT) to simulate two consecutive days of freestyle wrestling competitions according to Kraemer's model. Multiple performance assessments will be used to evaluate the impact of BA supplementation on athletes' physiological indicators and performance. It is expected that BA supplementation will enhance systemic antioxidant capacity, reduce muscle fatigue and oxidative stress induced by simulated wrestling matches, and improve wrestling-specific physical performance.

연구 개요

상태

모집하지 않고 적극적으로

정황

개입 / 치료

상세 설명

This experiment will employ the Specific Wrestling Performance Test (SWPT) to conduct the two-day simulated freestyle wrestling competition protocol developed by Kraemer (Kraemer et al., 2001), in order to evaluate the physiological responses of athletes during competition. A total of 20 wrestlers will participate in this study using a randomized single-blind crossover design. Participants will receive either beta-alanine (BA) supplementation or a placebo for four weeks (4.8 g/day), followed by a four-week washout period. On the official testing day, body composition measurements and records will be taken 12 hours before the first SWPT session. After the measurements, participants will be provided with a 300 kcal light meal. Following the completion of the third SWPT session, participants will perform approximately 20-30 minutes of cycling exercise to help maintain body weight for the following morning. Two hours before the fourth SWPT session, body weight will be measured again to ensure that weight variation does not exceed 2%, after which another 300 kcal light meal will be provided. The simulated two-day freestyle wrestling competition protocol will consist of five SWPT sessions: on Day 1, SWPT sessions will be conducted at 10:00 AM, 2:00 PM, and 6:00 PM; on Day 2, sessions will take place at 10:00 AM and 7:00 PM. In this crossover trial, all pre-competition assessments will be conducted before the matches. Pre-test assessments must be completed 10 minutes before the start of the first SWPT session, while post-test assessments will be conducted immediately after each SWPT session. The assessment items include the number of throws completed during the simulated SWPT match, reaction tests, grip strength tests, back strength tests, and sport-specific fitness tests. In addition, ratings of perceived exertion (RPE), heart rate, and blood samples will be recorded and collected. The sport-specific fitness tests include the Overhead Medicine Ball Throw (OMBT) and the Medicine Ball Chest Throw (MBCT).

연구 유형

중재적

등록 (실제)

16

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 장소

  • 대만
      • Taichung, 대만
        • China Medical University

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

  • 어린이
  • 성인

건강한 자원 봉사자를 받아들입니다

예

설명

Inclusion Criteria:

  • Wrestle athletes aged 12 to 25 years with at least 3 years of wrestle training experience.

Exclusion Criteria:

  • All participants must be free from chronic conditions such as heart disease and hypertension, and must not have experienced any serious lower limb musculoskeletal injuries within the past six months.

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 다른
  • 할당: 무작위
  • 중재 모델: 크로스오버 할당
  • 마스킹: 네 배로

무기와 개입

참가자 그룹 / 팔
개입 / 치료
위약 비교기: 위약
식용 노란색 No. 4, 식용 노란색 번호 5, 자당, 실리카, 활석, 산화 전분, 젤라틴, 마그네슘 스테아 레이트 및 팜 왁스를 포함합니다.
다른: Placebo (Placebo trial)
The Placebo capsule supplement was taken for 4 weeks (6 capsules per day).
다른: Beta-Alanine (Beta-Alanine trial)
The Beta-Alanine capsule supplement was taken for 4 weeks, with a daily dosage of 4.8 g of Beta-Alanine (equivalent to 6 capsules per day, each containing 800 mg of Beta-Alanine).
실험적: Beta-Alanine
Each capsule containing 800 mg of Beta-Alanine.
다른: Placebo (Placebo trial)
The Placebo capsule supplement was taken for 4 weeks (6 capsules per day).
다른: Beta-Alanine (Beta-Alanine trial)
The Beta-Alanine capsule supplement was taken for 4 weeks, with a daily dosage of 4.8 g of Beta-Alanine (equivalent to 6 capsules per day, each containing 800 mg of Beta-Alanine).

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Specific Wrestling Performance Test (SWPT)
기간: Including for 4 days in both beta-alanine and placebo trials
The test consists of two rounds with identical procedures. Each round lasts for 3 minutes, with a 30-second rest interval between rounds. During the first minute, participants perform one throw every 10 seconds for a total of 3 throws. This is followed by maximal repeated throws performed between 30 and 50 seconds, and then a rest period from 50 to 60 seconds. The second minute follows the same procedure as the first minute. In the third minute, participants again perform one throw every 10 seconds for a total of 3 throws, followed by 30 seconds of maximal repeated throws, during which the total number of throws is recorded. According to the experimental design of Marković, the dummy weight is adjusted based on the athlete's body weight: participants weighing less than 75 kg throw a 22 kg dummy, those weighing between 75-90 kg throw a 27 kg dummy, and those weighing more than 90 kg throw a 32 kg dummy (Marković et al., 2022).
Including for 4 days in both beta-alanine and placebo trials

2차 결과 측정

결과 측정
측정값 설명
기간
Reaction test
기간: Including for 4 days in both beta-alanine and placebo trials
Reaction time is a key factor influencing wrestling performance, as shorter reaction times enable athletes to execute more effective technical and tactical actions. In this study, the BlazePod reaction light system will be used to conduct the reaction test. After hearing the command "Ready," participants will assume a position with both hands and knees on the ground. Once the light is activated, participants must stand up as quickly as possible and tap the reaction light. The time interval between the "Ready" command and the light activation will vary randomly in order to prevent participants from anticipating the timing of the stimulus. The test will be performed three times with a 1-minute rest interval between trials, and the best performance result will be recorded.
Including for 4 days in both beta-alanine and placebo trials
Grip strength test
기간: Including for 4 days in both beta-alanine and placebo trials
Grip strength will be assessed using an electronic handgrip dynamometer. Participants will stand in a natural upright position with their arms hanging naturally at their sides. The elbows and wrists will be maintained at 0° extension, and the grip width will be adjusted to fit the position of the second finger joint. During the test, participants will be instructed to squeeze the dynamometer handle as forcefully as possible for 5 seconds. Grip strength measurements will be performed three times for each hand, with a 1-minute rest interval between trials. The highest value obtained will be recorded as the test result.
Including for 4 days in both beta-alanine and placebo trials
The Borg Rating of Perceived Exertion (RPE) Scale
기간: Including for 4 days in both beta-alanine and placebo trials
The Borg Rating of Perceived Exertion Scale measures how hard exercise feels. Participants rate effort from 6 (no exertion) to 20 (maximal exertion). A higher score means greater effort (worse fatigue).
Including for 4 days in both beta-alanine and placebo trials
Medicine Ball Chest Throw (MBCT) test
기간: Including for 4 days in both beta-alanine and placebo trials
The sport-specific wrestling fitness test protocol developed by Dehnou in 2020 will be used in this study. Participants will sit on a chair with their feet shoulder-width apart and firmly placed on the floor, with the toes aligned with the starting line. The knees will be maintained at a 90° flexion angle while the upper body remains upright. Participants will hold a 5 kg medicine ball in front of the chest with both hands. During the test, participants will forcefully push the ball forward using a chest-pass motion similar to a basketball chest pass. Throughout the movement, the ischial tuberosities must remain in contact with the seat, and trunk rotation is not permitted. The throwing distance will be measured and recorded. The test will be performed three times with a 1-minute rest interval between trials, and the greatest distance achieved will be recorded as the final result.
Including for 4 days in both beta-alanine and placebo trials
Overhead Medicine Ball Throw (OMBT) test
기간: Including for 4 days in both beta-alanine and placebo trials
The sport-specific wrestling fitness test protocol developed by Dehnou in 2020 will be adopted in this study. Participants will stand with their feet shoulder-width apart and their heels aligned with the starting line, while holding a 5 kg medicine ball naturally in front of the body with both hands. Participants will then squat down until the medicine ball reaches knee level, after which they will rapidly extend the body and forcefully throw the ball backward over the head. The throwing distance will be measured and recorded. The test will be performed three times with a 1-minute rest interval between trials, and the greatest distance achieved will be recorded as the final result.
Including for 4 days in both beta-alanine and placebo trials
Back strength test
기간: Including for 4 days in both beta-alanine and placebo trials
Back strength will be measured using a back strength dynamometer. Participants will stand on the testing platform while gripping the handle with both hands using an overhand grip. The knees will remain fully extended, and the upper body will lean forward at approximately 30°. The length of the chain attached to the handle may be adjusted according to each participant's body size to ensure an appropriate testing position. During the test, participants will pull the handle upward with maximal effort using the strength of the back and upper body muscles, while avoiding excessive use of the arms and legs. The dynamometer pointer will display the measured back strength value. The test will be performed three times with a 1-minute rest interval between trials, and the highest value obtained will be recorded.
Including for 4 days in both beta-alanine and placebo trials

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

스폰서

China Medical University Hospital

협력자

China Medical University, Taiwan

수사관

  • 연구 의자: Jung-Piao Tsao, China Medical University, China

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작 (실제)

2026년 4월 11일

기본 완료 (실제)

2026년 5월 24일

연구 완료 (추정된)

2026년 10월 1일

연구 등록 날짜

최초 제출

2026년 6월 8일

QC 기준을 충족하는 최초 제출

2026년 6월 8일

처음 게시됨 (실제)

2026년 6월 11일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2026년 6월 11일

QC 기준을 충족하는 마지막 업데이트 제출

2026년 6월 8일

마지막으로 확인됨

2026년 6월 1일

추가 정보

이 연구와 관련된 용어

키워드

추가 관련 MeSH 약관

기타 연구 ID 번호

  • CMUH114-REC3-170

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

아니요

약물 및 장치 정보, 연구 문서

미국 FDA 규제 의약품 연구

아니

미국 FDA 규제 기기 제품 연구

아니

이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .

Placebo (Placebo trial)에 대한 임상 시험

유사한 임상시험 검색

스폰서 및 공동 작업자

건강 상태

약물 개입

CROs by country

CROs in Egypt

정황

희귀 질병

약물 개입

식이 보충제

스폰서 / 협력자

위치

구독하다