NCT07559487

Brief Summary

This completed observational repeated-measures study examined the relationship between field-based physical and temporal measures and pitch velocity in adolescent baseball pitchers. Six adolescent pitchers were assessed repeatedly over five weeks. The assessment battery included rotational medicine-ball throw distance, countermovement jump height, 30 m sprint time, shoulder flexibility, temporal characteristics of two operational wind-up phases, and pitch velocity measured with a sports radar. No experimental intervention or modification of the athletes' usual training was implemented.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
6

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Jul 2022

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 21, 2022

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 15, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 15, 2022

Completed
3.6 years until next milestone

First Submitted

Initial submission to the registry

April 24, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 30, 2026

Completed
Last Updated

April 30, 2026

Status Verified

April 1, 2026

Enrollment Period

2 months

First QC Date

April 24, 2026

Last Update Submit

April 24, 2026

Conditions

Keywords

baseballadolescent athletespitching velocitybiomechanics

Outcome Measures

Primary Outcomes (1)

  • Pitch Velocity

    Pitch velocity was measured in miles per hour using a sports radar during baseball pitches performed with the athlete's usual pitching technique. The best valid attempt was recorded for each assessment session.

    At each weekly assessment over 5 weeks

Secondary Outcomes (6)

  • Rotational Medicine-Ball Throw Distance

    At each weekly assessment over 5 weeks

  • Countermovement Jump Height

    At each weekly assessment over 5 weeks

  • 30 m Flying Sprint Time

    At each weekly assessment over 5 weeks

  • Shoulder Flexibility

    At each weekly assessment over 5 weeks

  • Wind-Up Phase 1 Duration

    At each weekly assessment over 5 weeks

  • +1 more secondary outcomes

Study Arms (1)

Adolescent Baseball Pitchers

Adolescent baseball pitchers who completed repeated field-based assessments of explosive strength, sprint performance, shoulder flexibility, wind-up temporal characteristics, and pitch velocity over approximately five weeks. No intervention or training modification was assigned by the investigators.

Other: Field-Based Performance Assessment Battery

Interventions

Participants completed a field-based assessment battery including rotational medicine-ball throw, countermovement jump, 30 m flying sprint, shoulder flexibility assessment, video-based wind-up temporal analysis, and radar-based pitch velocity measurement. These procedures were used only for observational assessment and did not constitute an assigned intervention.

Adolescent Baseball Pitchers

Eligibility Criteria

Age13 Years - 14 Years
Sexmale
Healthy VolunteersYes
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

The study population consisted of male adolescent baseball pitchers aged 13 to 14 years from an organized youth baseball training process in Antioquia, Colombia. Participants were healthy athletes involved in regular baseball practice and were assessed using field-based physical, biomechanical, and performance measures related to pitch velocity.

You may qualify if:

  • Male adolescent baseball players aged 13 to 14 years.
  • Regular pitchers or players who performed regular pitching duties within an organized baseball training process.
  • Regular participation in baseball training during the assessment period.
  • Ability to complete field-based jumping, sprinting, shoulder flexibility, pitching, and video-based wind-up assessments.
  • Parent or legal guardian consent and participant assent.

You may not qualify if:

  • Active musculoskeletal injury, relevant pain, or medical restriction limiting participation in jumping, sprinting, or pitching assessments.
  • Ongoing physical rehabilitation at the time of assessment.
  • Medical contraindication for performing physical efforts consistent with regular baseball practice.
  • Insufficient attendance to complete the minimum repeated-measures record required for analysis.
  • Withdrawal of parent/legal guardian consent or participant assent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tecnológico de Antioquia

Guarne, Antioquia, 054080, Colombia

Location

Related Publications (4)

  • Hernández Sampieri R, Mendoza Torres CP. Metodología de la investigación: las rutas cuantitativa, cualitativa y mixta. Ciudad de México: McGraw-Hill Education; 2018.

    BACKGROUND
  • Naclerio Ayllón F, Santos Leyva J, Pantoja García D. Relación entre los parámetros de fuerza, potencia y velocidad, en jugadores de softball. Kronos. 2004;3(6):13-20.

    BACKGROUND
  • Cañizares Arteaga R, Peña Malibran JD, Jiménez García R. Estudio del comportamiento de algunas características biomecánicas durante el lanzamiento, en lanzadores de béisbol del equipo de Sancti Spíritus. OLIMPIA. 2020;17:581-592.

    BACKGROUND
  • Pérez Martínez I, Martínez García M, Quintana Díaz A. Interrelación entre variables relacionadas con la velocidad del lanzamiento en el béisbol. PODIUM: Revista de Ciencia y Tecnología en la Cultura Física. 2021;16(3):743-756.

    BACKGROUND

Study Officials

  • SAMUEL JOSE GAVIRIA ALZATE, PhD

    Tecnologico de Antioquia

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 24, 2026

First Posted

April 30, 2026

Study Start

July 21, 2022

Primary Completion

September 15, 2022

Study Completion

September 15, 2022

Last Updated

April 30, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be shared because the study involved minors and a small sport-specific sample, which may increase the risk of indirect identification. Results will be reported only in aggregate form.

Locations