Baseline Neuromuscular Performance and Responses to a Simulated Match in Young Athletes (SIMMATCH-NM)
Predictive Power of Baseline Neuromuscular Performance Characteristics for Physiological and Perceptual Responses After a Simulated Match in Young Athletes
This study looks at whether the physical fitness of young judo athletes before a match can help predict how their bodies and effort perception respond after a match. Judo matches are short, intense and tiring. After a match, athletes show higher blood lactate (a marker of intense effort), weaker grip strength and lower jump height. Not much is known about whether baseline tests of core endurance, throwing power, speed, agility and force-velocity profile can predict these changes in young athletes. Male judo athletes aged 10-13 years will complete these baseline tests in one session and then take part in one 3-minute simulated judo match with a training partner of similar body mass. Blood lactate, vertical jump height and grip strength will be measured before and right after the match, and athletes will rate how hard the match felt. The study will examine how the changes after the match relate to the baseline test results. The findings may help coaches monitor training load and plan conditioning for young judo athletes.
研究概览
地位
地位
条件
条件
干预/治疗
干预/治疗
详细说明
Judo is a high-intensity intermittent combat sport. Matches produce marked blood lactate accumulation, loss of handgrip strength, and reduced lower-body power. Baseline physical profiling is widely used to monitor athletic development, but its ability to predict individual physiological and perceptual responses to a judo match in young athletes is not well understood.
This is a single-group, pre-post study. Fifteen male judo athletes aged 10-13 years will be recruited in Malatya, Turkey. Written informed consent will be obtained from parents or legal guardians, and assent from participants. About one week before testing, participants are familiarized with the procedures and the Borg 6-20 rating of perceived exertion (RPE) scale. Participants avoid high-intensity training, caffeine and ergogenic supplements for 48 hours before testing. Testing takes place in a climate-controlled hall (20-22 °C).
Test day: After anthropometric measurements, baseline profiling is performed: McGill core endurance tests (trunk flexion, trunk extension, right and left lateral bridge), a 2-kg backward overhead medicine ball throw, a 20-m sprint, the pro-agility test, and a force-velocity profile using Samozino's field method (MyJump2 app, 240 fps video). After a standardized 10-minute warm-up (low-intensity jogging, dynamic stretching, breakfalls), pre-match measures are taken: blood lactate (finger-prick capillary sample, single-use lancet), countermovement jump height (contact mat) and handgrip strength (hand dynamometer).
Athletes then complete one 3-minute simulated judo match (randori) under International Judo Federation rules with a training partner of similar body mass (±5 kg), supervised by a coach. Immediately afterwards, blood lactate, jump height, grip strength and RPE are measured in this order within about 3 minutes.
Pre- and post-match values are compared with paired-samples t-tests (Cohen's d). Change scores (post minus pre) for lactate, jump height and grip strength, and RPE, are related to baseline variables using Pearson correlation and simple linear regression. The sample size (minimum 15) was calculated with G*Power for a paired t-test (d = 0.80, alpha = 0.05, power = 0.80).
研究类型
研究类型
注册 (估计的)
注册
阶段
阶段
- 不适用
联系人和位置
学习联系方式
学习联系方式
- 姓名:Denizhan Çalışkan, Dr.
- 电话号码:+90 539 879 64 59
- 邮箱:denizhancaliskann@gmail.com
研究联系人备份
- 姓名:Özgür Eken, PhD, Associate Professor
- 电话号码:+90 553 213 27 95
- 邮箱:ozgur.eken@inonu.edu.tr
学习地点
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Malatya
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Malatya、Malatya、土耳其(türkiye)、44280
- Department of Physical Education and Sport Teaching, Faculty of Sports Sciences, Inonu University,
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接触:
- Özgür Eken, PhD, Assoc. Prof.
- 电话号码:+90 553 213 27 95
- 邮箱:ozgur.eken@inonu.edu.tr
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参与标准
资格标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Actively competing judo athlete in Malatya, Turkey
- Male, aged 10-13 years
- At least 2 years of regular judo training and competition experience
- At least four structured technical-tactical training sessions per week
- No limiting musculoskeletal injury in the last 6 months
- No musculoskeletal, cardiometabolic, or neurological condition that could prevent testing
- Willing to participate in all planned tests
- Written informed consent signed by parent or legal guardian, and assent from the participant
Exclusion Criteria:
- Younger than 10 or older than 13 years
- Musculoskeletal injury or surgery within the last 6 months
- Musculoskeletal, cardiometabolic, or neurological condition that could prevent testing
- Open wound, varicose veins, acute inflammation, or history of thrombosis
- Regular use of analgesic or anti-inflammatory medication or ergogenic supplements in the last 3 months
- Unable to attend all planned testing sessions
- Unwilling to follow the pre-test rules (no high-intensity training, caffeine or ergogenic supplements for 48 hours; usual diet, hydration and rest)
- Withdrawal during the study due to non-compliance, incomplete sessions, acute injury during the simulated match, serious illness, or participant request
学习计划
研究是如何设计的?
设计细节
- 主要用途:基础科学
- 分配:不适用
- 介入模型:单组作业
- 屏蔽:无(打开标签)
手臂数量
武器和干预
参与者组/臂参与者组/臂 |
干预/治疗干预/治疗 |
|---|---|
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实验性的:Young Judo Athletes
Male judo athletes aged 10-13 years complete baseline physical profiling, followed by one standardized 3-minute simulated judo match. Blood lactate, jump height, grip strength and perceived exertion are measured before and immediately after the match. |
One 3-minute simulated judo match (randori) performed under International Judo Federation rules against a training partner of similar body mass (±5 kg), supervised by a coach. Athletes are instructed to fight at maximal competitive intensity.
其他名称:
McGill core endurance tests, 2-kg backward overhead medicine ball throw, 20-m sprint, pro-agility test and force-velocity profile (Samozino's field method). Followed by pre- and post-match measures of blood lactate, countermovement jump height, handgrip strength and rating of perceived exertion. |
研究衡量的是什么?
主要结果指标
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Change in Blood Lactate Concentration After a Simulated Judo Match
大体时间:Immediately before and within 3 minutes after the simulated match (single test session)
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Change (post-match minus pre-match) in capillary blood lactate concentration (mmol/L), measured from a finger-prick sample with a portable lactate analyzer. The relationship of this change with baseline physical performance variables is also analyzed. |
Immediately before and within 3 minutes after the simulated match (single test session)
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Change in Countermovement Jump Height After a Simulated Judo Match
大体时间:Immediately before and within 3 minutes after the simulated match (single test session)
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Change (post-match minus pre-match) in maximal isometric handgrip strength (kg) of the dominant hand, measured with a hand dynamometer (best of two trials). |
Immediately before and within 3 minutes after the simulated match (single test session)
|
次要结果测量
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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Rating of Perceived Exertion (RPE) After a Simulated Judo Match
大体时间:Within 30 seconds after the simulated match (single test session)
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Perceived effort of the simulated match rated on the Borg 6-20 RPE scale (6 = no exertion, 20 = maximal exertion). |
Within 30 seconds after the simulated match (single test session)
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Change in Handgrip Strength After a Simulated Judo Match
大体时间:Immediately before and within 3 minutes after the simulated match (single test session)
|
Change (post-match minus pre-match) in maximal isometric handgrip strength (kg) of the dominant hand, measured with a hand dynamometer (best of two trials). |
Immediately before and within 3 minutes after the simulated match (single test session)
|
合作者和调查者
调查人员
调查人员
- 首席研究员:Özgür Eken, PhD, Assoc. Prof.、Inonu University, Faculty of Sport Sciences
- 研究主任:Denizhan Caliskan、Eskisehir Provincial Directorate of Youth and Sports, Eskisehir, Türkiye
出版物和有用的链接
一般刊物
- McGill SM, Childs A, Liebenson C. Endurance times for low back stabilization exercises: clinical targets for testing and training from a normal database. Arch Phys Med Rehabil. 1999 Aug;80(8):941-4. doi: 10.1016/s0003-9993(99)90087-4.
- Franchini E, Del Vecchio FB, Matsushigue KA, Artioli GG. Physiological profiles of elite judo athletes. Sports Med. 2011 Feb 1;41(2):147-66. doi: 10.2165/11538580-000000000-00000.
- Samozino P, Rejc E, Di Prampero PE, Belli A, Morin JB. Optimal force-velocity profile in ballistic movements--altius: citius or fortius? Med Sci Sports Exerc. 2012 Feb;44(2):313-22. doi: 10.1249/MSS.0b013e31822d757a.
研究记录日期
研究主要日期
学习开始 (估计的)
学习开始
初级完成 (估计的)
初级完成
研究完成 (估计的)
研究完成
研究注册日期
首次提交
首次提交
首先提交符合 QC 标准的
首先提交符合 QC 标准的
首次发布 (实际的)
首次发布
研究记录更新
最后更新发布 (实际的)
最后更新发布
上次提交的符合 QC 标准的更新
上次提交的符合 QC 标准的更新
最后验证
最后验证
更多信息
与本研究相关的术语
其他研究编号
其他研究编号
- INONU-SIMMATCH-2026-02
- SIMMATCH-2026 (其他标识符:Inonu University)
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)?
IPD 计划说明
Individual participant data will not be shared, because participants are minors and the consent forms state that data will be used only for the purposes of this research and kept confidential. Aggregate results will be published.
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
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