Neuromuscular Variables and Performance in Mexican Weightlifters
NCT ID: NCT07277335
Last Updated: 2025-12-11
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
50 participants
OBSERVATIONAL
2025-12-27
2025-12-31
Brief Summary
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Detailed Description
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The study will analyze athletes from two age groups (U-15 and Over-18) and both sexes, selecting one light and one heavy body mass division per group. The included divisions are: U-15, Female: -44 kg (light), -63 kg (heavy) and Male: -56 kg (light), -79 kg (heavy); Over-20, Female: -53 kg (light), -77 kg (heavy) and Male: -65 kg (light), -94 kg (heavy)
Conditions
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Study Design
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OTHER
CROSS_SECTIONAL
Study Groups
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Junior weightlifters younger than 15 years old
Isometric start position pull (ISPP)
The participants' force production capacity will be assessed. The test will be conducted on a force platform. Each athlete will perform general and specific warm-up and familiarization with three isometric attempts with CJ grip (\~50%, 80% and 100% perceived effort). For measurement, each participant will execute two 3-s maximum attempts with CJ grip, with 1 minute rest between efforts.
Vertical impulse
A force platform will be used to measure the lower-limbs vertical impulse during a The Deep Squat Jump (DSJ). Participants will execute the DSJ without any countermovement, ensuring maintenance of the full squat position for 3-4 seconds before takeoff to avoid any contribution from elastic energy storage.
Performance
Performance indicators will be obtained from official competition records, extracting the best valid loads in Snatch (SN), Clean \& Jerk (CJ), and Total (TOT)
Elite weightlifters older than 18 years old (up to 23 years)
Isometric start position pull (ISPP)
The participants' force production capacity will be assessed. The test will be conducted on a force platform. Each athlete will perform general and specific warm-up and familiarization with three isometric attempts with CJ grip (\~50%, 80% and 100% perceived effort). For measurement, each participant will execute two 3-s maximum attempts with CJ grip, with 1 minute rest between efforts.
Vertical impulse
A force platform will be used to measure the lower-limbs vertical impulse during a The Deep Squat Jump (DSJ). Participants will execute the DSJ without any countermovement, ensuring maintenance of the full squat position for 3-4 seconds before takeoff to avoid any contribution from elastic energy storage.
Performance
Performance indicators will be obtained from official competition records, extracting the best valid loads in Snatch (SN), Clean \& Jerk (CJ), and Total (TOT)
Interventions
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Isometric start position pull (ISPP)
The participants' force production capacity will be assessed. The test will be conducted on a force platform. Each athlete will perform general and specific warm-up and familiarization with three isometric attempts with CJ grip (\~50%, 80% and 100% perceived effort). For measurement, each participant will execute two 3-s maximum attempts with CJ grip, with 1 minute rest between efforts.
Vertical impulse
A force platform will be used to measure the lower-limbs vertical impulse during a The Deep Squat Jump (DSJ). Participants will execute the DSJ without any countermovement, ensuring maintenance of the full squat position for 3-4 seconds before takeoff to avoid any contribution from elastic energy storage.
Performance
Performance indicators will be obtained from official competition records, extracting the best valid loads in Snatch (SN), Clean \& Jerk (CJ), and Total (TOT)
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
13 Years
23 Years
ALL
Yes
Sponsors
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Ángel Rodríguez
NETWORK
Responsible Party
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Ángel Rodríguez
Researcher
Principal Investigators
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Diego A Bonilla
Role: STUDY_DIRECTOR
Research Division, Dynamical Business & Science Society-DBSS International SAS
Rodrigo D Merlo, PhD
Role: STUDY_CHAIR
Research Division, Dynamical Business & Science Society-DBSS International SAS
Ángel Rodríguez-Chávez, Mg
Role: PRINCIPAL_INVESTIGATOR
Research Division, Dynamical Business & Science Society-DBSS International SAS
Jorge L Petro
Role: STUDY_CHAIR
Research Division, Dynamical Business & Science Society-DBSS International SAS
Leoncio Moreno
Role: STUDY_CHAIR
Federación Mexicana de Levantamiento de Pesas
Shyam Chavda
Role: STUDY_CHAIR
London Sports Institute, Middlesex University, West Stand, Stone X Stadium, Greenlands Lane, London NW4 1RL, UK
Marcos A Soriano
Role: STUDY_CHAIR
Centre for Sport Studies, Rey Juan Carlos University, 28943 Madrid, Spain; [email protected]
Locations
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Hotel María Dolores
San Luis Potosí City, San Luis Potosí, Mexico
Countries
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Facility Contacts
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References
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Joffe SA, Chavda S, Gilham J, Sandercock GRH, Tallent J. A comparison of maximal isometric force in the first pull, transition and second pull of the clean and their contribution to predict performance in national and international level weightlifters. Sports Biomech. 2025 Jan 30:1-17. doi: 10.1080/14763141.2025.2458478. Online ahead of print.
Soriano MA, Flores FJ, Alonso-Aubin DA, Garcia-Sanchez C, Ceniza-Villacastin JA, Jimenez-Ormeno E, Lama-Arenales J, Comfort P. Associations Between Maximum Isometric Strength and Weightlifting Performance in Youth Weightlifters. J Strength Cond Res. 2025 May 1;39(5):570-578. doi: 10.1519/JSC.0000000000005052.
Vizcaya FJ, Viana O, del Olmo MF, Acero RM. Could the deep squat jump predict weightlifting performance? J Strength Cond Res. 2009 May;23(3):729-34. doi: 10.1519/JSC.0b013e3181a04dc3.
Other Identifiers
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Kraft2025_DBSS
Identifier Type: OTHER
Identifier Source: secondary_id
Kraft2025_DBSS
Identifier Type: -
Identifier Source: org_study_id
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