<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE trials [
<!ELEMENT trials (trial+)>

<!ELEMENT trial (main,contacts,countries,criteria,health_condition_code,health_condition_keyword,intervention_code,
          intervention_keyword,primary_outcome,secondary_outcome,secondary_sponsor,secondary_ids,source_support,ethics_reviews)>

<!ELEMENT main (trial_id,utrn?,reg_name,date_registration,primary_sponsor,public_title,acronym?,scientific_title,scientific_acronym?,
          date_enrolment,type_enrolment,target_size,recruitment_status,url?,study_type,study_design,phase,hc_freetext?,i_freetext?,results_actual_enrolment,results_date_completed,results_url_link,results_summary,           results_date_posted,results_date_first_publication,results_baseline_char,results_participant_flow,results_adverse_events,results_outcome_measures,results_url_protocol,results_IPD_plan, results_IPD_description)>
<!ELEMENT trial_id (#PCDATA)>
<!ELEMENT utrn (#PCDATA)>
<!ELEMENT reg_name (#PCDATA)>
<!ELEMENT date_registration (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT primary_sponsor (#PCDATA)>
<!ELEMENT public_title (#PCDATA)>
<!ELEMENT acronym (#PCDATA)>
<!ELEMENT scientific_title (#PCDATA)>
<!ELEMENT scientific_acronym (#PCDATA)>
<!ELEMENT date_enrolment (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT type_enrolment (#PCDATA)>
<!ELEMENT target_size (#PCDATA)>
<!ELEMENT recruitment_status (#PCDATA)><!-- Pending,Recruiting,Suspended,Complete,Other -->
<!ELEMENT url (#PCDATA)>
<!ELEMENT study_type (#PCDATA)><!-- interventional,observational -->
<!ELEMENT study_design (#PCDATA)>
<!ELEMENT phase (#PCDATA)>
<!ELEMENT hc_freetext (#PCDATA)>
<!ELEMENT i_freetext (#PCDATA)>
<!ELEMENT results_actual_enrolment (#PCDATA)>
<!ELEMENT results_date_completed (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_url_link (#PCDATA)>
<!ELEMENT results_summary (#PCDATA)>
<!ELEMENT results_date_posted (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_date_first_publication (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_baseline_char (#PCDATA)>
<!ELEMENT results_participant_flow (#PCDATA)>
<!ELEMENT results_adverse_events (#PCDATA)>
<!ELEMENT results_outcome_measures (#PCDATA)>
<!ELEMENT results_url_protocol (#PCDATA)>
<!ELEMENT results_IPD_plan (#PCDATA)>
<!ELEMENT results_IPD_description (#PCDATA)>


<!ELEMENT contacts (contact+)>
<!ELEMENT contact (type,firstname,middlename,lastname,address,city,country1,zip,telephone,email,affiliation)>
<!ELEMENT type (#PCDATA)><!-- Public,Scientific -->
<!ELEMENT firstname (#PCDATA)>
<!ELEMENT middlename (#PCDATA)>
<!ELEMENT lastname (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT country1 (#PCDATA)>
<!ELEMENT zip (#PCDATA)>
<!ELEMENT telephone (#PCDATA)>
<!ELEMENT email (#PCDATA)>
<!ELEMENT affiliation (#PCDATA)>

<!ELEMENT countries (country2+)>
<!ELEMENT country2 (#PCDATA)>

<!ELEMENT criteria (inclusion_criteria,agemin,agemax,gender,exclusion_criteria)>
<!ELEMENT inclusion_criteria (#PCDATA)>
<!ELEMENT agemin (#PCDATA)>
<!ELEMENT agemax (#PCDATA)>
<!ELEMENT gender (#PCDATA)>
<!ELEMENT exclusion_criteria (#PCDATA)>

<!ELEMENT health_condition_code (hc_code+)>
<!ELEMENT hc_code (#PCDATA)>

<!ELEMENT health_condition_keyword (hc_keyword+)>
<!ELEMENT hc_keyword (#PCDATA)>

<!ELEMENT intervention_code (i_code+)>
<!ELEMENT i_code (#PCDATA)>

<!ELEMENT intervention_keyword (i_keyword+)>
<!ELEMENT i_keyword (#PCDATA)>

<!ELEMENT primary_outcome (prim_outcome+)>
<!ELEMENT prim_outcome (#PCDATA)>

<!ELEMENT secondary_outcome (sec_outcome+)>
<!ELEMENT sec_outcome (#PCDATA)>

<!ELEMENT secondary_sponsor (sponsor_name+)>
<!ELEMENT sponsor_name (#PCDATA)>

<!ELEMENT secondary_ids (secondary_id+)>
<!ELEMENT secondary_id (sec_id,issuing_authority)>
<!ELEMENT sec_id (#PCDATA)>
<!ELEMENT issuing_authority (#PCDATA)>

<!ELEMENT source_support (source_name+)>
<!ELEMENT source_name (#PCDATA)>

<!ELEMENT ethics_reviews (ethics_review+)>
<!ELEMENT ethics_review (status,approval_date,contact_name,contact_address,contact_phone,contact_email)>
<!ELEMENT status (#PCDATA)><!-- Not approved,Approved,NA -->
<!ELEMENT approval_date (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT contact_name (#PCDATA)>
<!ELEMENT contact_address (#PCDATA)>
<!ELEMENT contact_phone (#PCDATA)>
<!ELEMENT contact_email (#PCDATA)>
]>
<trials>
  <trial>
    <main>
      <trial_id>IRCT20251018067670N2</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2026-08-13</date_registration>
      <primary_sponsor>Fateh taekwondo club</primary_sponsor>
      <public_title>Effects of fetigue on reaction time and Electromyographie activity in martial artists</public_title>
      <acronym>Effets af fetiuge on RT and EMG in MA</acronym>
      <scientific_title>Effects of fetigue on reaction time and Electromyographie activity in martial artists</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2026-08-21</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>20</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/91031</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: N/A, Blinding: Single blinded, Placebo: Not used, Assignment: Single, Purpose: Prevention, Blinding description: This study is a quasi-experimental study with a single-group pretest–posttest design. The fatigue protocol was considered the intervention, and each participant served as their own control. A total of 20 participants were assigned to a single group, and comparisons were made within individuals. The injured limb of each participant was compared with their contralateral uninjured limb.

A single-blind design was used in this study. In this type of blinding, the outcome assessors were unaware of the participants’ group allocation to minimize potential measurement bias.

The assessment protocol consisted of a single group, and both selective reaction time and the electrical activity of selected muscles were evaluated during two separate testing sessions. In one session, selective reaction time was assessed before and after the fatigue protocol. In the other session, the electrical activity of the selected muscles was recorded before and after the fatigue protocol.</study_design>
      <phase>N/A</phase>
      <hc_freetext>Type I anterior cruciate ligament injury.</hc_freetext>
      <i_freetext>This study aims to determine the effect of low-grade anterior cruciate ligament (ACL) injury on reaction time and the electrical activity of selected knee-stabilizing muscles, with the ultimate goal of increasing athletes’ awareness of the importance of low-grade ACL injuries.Intervention Group:This study will employ a quasi-experimental, single-group pretest–posttest design. The intervention group will consist of 20 martial artists. Selective reaction time and the electrical activity of selected muscles will be assessed at two time points: before and after the implementation of the fatigue protocol.Control Condition:Since this study uses a single-group design, there will be no separate control group. Instead, the uninjured limb of each participant will serve as the internal control and will be compared with the injured limb. This within-subject comparison will allow the researchers to examine differences between the injured and healthy limbs under the same experimental conditions.Each participant will undergo two separate assessment sessions within one month. In one session, selective reaction time will be assessed before and after the fatigue protocol. In a separate session, the electrical activity of the selected muscles will be recorded before and after the fatigue protocol.Selective reaction time will be evaluated using visual stimuli presented on a computer monitor. The electrical activity of the selected muscles will be assessed using surface electromyography (sEMG).Therefore, the assessment protocol will consist of two separate testing days. On the first day, selective reaction time will be measured before and after fatigue. On the second day, the electrical activity of the selected muscles will be recorded before and after fatigue..</i_freetext>
      <results_actual_enrolment></results_actual_enrolment>
      <results_date_completed></results_date_completed>
      <results_url_link></results_url_link>
      <results_summary></results_summary>
      <results_date_posted></results_date_posted>
      <results_date_first_publication></results_date_first_publication>
      <results_baseline_char></results_baseline_char>
      <results_participant_flow></results_participant_flow>
      <results_adverse_events></results_adverse_events>
      <results_outcome_measures></results_outcome_measures>
      <results_url_protocol></results_url_protocol>
      <results_IPD_plan>Yes - There is a plan to make this available</results_IPD_plan>
      <results_IPD_description>What will be shared:
Only a portion of the data, such as information related to the primary outcome variables of the study, will be shared.

When:
Access will begin after the completion of the study.

To whom:
Individuals working in academic and sports institutions will be included.

Conditions:
Only data that have been collected and used within the study will be available for use.

Where to obtain:
Sent to the researcher’s email.

How to obtain:
The email will be sent, and responses will be provided within one month thereafter.

Comments:
</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>mohammad amin emadian</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>sport complex 5 mordad</address>
        <city>arak</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>3816676559</zip>
        <telephone>+98 86 3277 1471</telephone>
        <email>mohammadaminemadian@gmail.com</email>
        <affiliation>Arak university</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>mohammad amin emadian</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>sport complex 5 mordad</address>
        <city>arak</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>3816676559</zip>
        <telephone>+98 86 3277 1471</telephone>
        <email>mohammadaminemadian@gmail.com</email>
        <affiliation>arak university</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>History of a Grade I anterior cruciate ligament (ACL) injury within the past six months
Participants who are martial artists</inclusion_criteria>
      <agemin>14 years</agemin>
      <agemax>24 years</agemax>
      <gender>Male</gender>
      <exclusion_criteria>Concurrent injury in other knee structures
History of anterior cruciate ligament (ACL) reconstruction surgery
Neurological injuries and use of medications affecting neuromuscular performance</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code></hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword></hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Prevention</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>This study aims to determine the effect of low-grade anterior cruciate ligament (ACL) injury on reaction time and the electrical activity of selected knee-stabilizing muscles, with the ultimate goal of increasing athletes’ awareness of the importance of low-grade ACL injuries.Intervention Group:This study will employ a quasi-experimental, single-group pretest–posttest design. The intervention group will consist of 20 martial artists. Selective reaction time and the electrical activity of selected muscles will be assessed at two time points: before and after the implementation of the fatigue protocol.Control Condition:Since this study uses a single-group design, there will be no separate control group. Instead, the uninjured limb of each participant will serve as the internal control and will be compared with the injured limb. This within-subject comparison will allow the researchers to examine differences between the injured and healthy limbs under the same experimental conditions.Each participant will undergo two separate assessment sessions within one month. In one session, selective reaction time will be assessed before and after the fatigue protocol. In a separate session, the electrical activity of the selected muscles will be recorded before and after the fatigue protocol.Selective reaction time will be evaluated using visual stimuli presented on a computer monitor. The electrical activity of the selected muscles will be assessed using surface electromyography (sEMG).Therefore, the assessment protocol will consist of two separate testing days. On the first day, selective reaction time will be measured before and after fatigue. On the second day, the electrical activity of the selected muscles will be recorded before and after fatigue.</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Changes in reaction time and comparison of electrical activity of selected muscles in martial artists. Timepoint: start studying. Method of measurement: To assess choice reaction time, participants will be required to perform the movement technique corresponding to each specific visual stimulus presented on a display screen. In addition, the electrical activity of the selected muscles will be recorded using surface electromyography (sEMG). Muscle activity will be measured during the execution of a specific assessment task consisting of a single-leg landing from a height of 30 cm with the arms crossed over the chest.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome></sec_outcome>
    </secondary_outcome>
    <secondary_sponsor>
      <sponsor_name></sponsor_name>
    </secondary_sponsor>
    <secondary_ids>
      <secondary_id>
        <sec_id></sec_id>
        <issuing_authority></issuing_authority>
      </secondary_id>
    </secondary_ids>
    <source_support>
      <source_name>Fateh taekwondo club</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2026-03-16</approval_date>
        <contact_name>Etics committe Arak University</contact_name>
        <contact_address>ایران ؛ استان مرکزی شهر اراک ، سردشت ، بلوار کربلا دانشگاه سراسری اراک Arak Markazi Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
