Field-Based Physical and Temporal Correlates of Pitch Velocity in Adolescent Baseball Pitchers (No acronym)
Relationship Between Explosive Strength, Shoulder Flexibility, Sprint Performance, Wind-Up Temporal Characteristics, and Pitch Velocity in Adolescent Baseball Pitchers: A Completed Observational Repeated-Measures Study
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Pitch velocity is a relevant performance indicator in baseball pitching, particularly during adolescent development, when physical capacities, technical refinement, and sport-specific skill acquisition occur simultaneously. This completed observational study was designed to explore whether field-based measures of explosive strength, shoulder flexibility, sprint performance, and wind-up temporal organization were associated with pitch velocity in adolescent baseball pitchers.
The study used a quantitative, non-experimental, descriptive-correlational, longitudinal repeated-measures design. Six adolescent baseball pitchers were assessed once per week over approximately five weeks, yielding repeated observations nested within each athlete. The study did not involve an assigned intervention, randomization, treatment allocation, or modification of the athletes' usual training process.
The field-based assessment battery included rotational medicine-ball throw distance as an indicator of upper-body rotational explosive performance, countermovement jump height as an indicator of lower-body explosive performance, 30 m flying sprint time as an indicator of sprint performance, shoulder flexibility assessed through a behind-the-back shoulder mobility test, temporal analysis of two operational phases of the pitching wind-up using video, and pitch velocity measured with a sports radar. Wind-up phase 1 was operationally defined as the interval from maximal knee elevation to bilateral foot contact, whereas wind-up phase 2 was defined as the interval from bilateral foot contact to frontal orientation toward the target.
The main analytical purpose was to describe the magnitude and direction of the associations between the field-based measures and pitch velocity while accounting for the repeated-measures structure of the data. Analyses were planned using descriptive statistics and association models appropriate for repeated observations within participants, including mixed-effects models or exploratory correlation procedures when required by the sample size.
Tipo de estudo
Inscrição (Real)
Contactos e Locais
Locais de estudo
-
-
Antioquia
-
Guarne, Antioquia, Colômbia, 054080
- Tecnológico de Antioquia
-
-
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Filho
Aceita Voluntários Saudáveis
Método de amostragem
População do estudo
Descrição
Inclusion Criteria:
- 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.
Exclusion Criteria:
- 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.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
Coortes e Intervenções
Grupo / Coorte |
Intervenção / Tratamento |
|---|---|
|
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.
|
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.
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Pitch Velocity
Prazo: At each weekly assessment over 5 weeks
|
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
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Rotational Medicine-Ball Throw Distance
Prazo: At each weekly assessment over 5 weeks
|
Distance achieved in a rotational medicine-ball throw, used as a field-based indicator of upper-body rotational explosive performance.
|
At each weekly assessment over 5 weeks
|
|
Countermovement Jump Height
Prazo: At each weekly assessment over 5 weeks
|
Jump height measured during a countermovement jump, used as a field-based indicator of lower-body explosive performance.
|
At each weekly assessment over 5 weeks
|
|
30 m Flying Sprint Time
Prazo: At each weekly assessment over 5 weeks
|
Time recorded during a 30 m flying sprint test, used as a field-based indicator of sprint performance.
|
At each weekly assessment over 5 weeks
|
|
Shoulder Flexibility
Prazo: At each weekly assessment over 5 weeks
|
Shoulder flexibility assessed through a behind-the-back shoulder mobility test, recording the distance or overlap between the middle fingers.
|
At each weekly assessment over 5 weeks
|
|
Wind-Up Phase 1 Duration
Prazo: At each weekly assessment over 5 weeks
|
Duration of the first operational wind-up phase, defined as the time from maximal knee elevation to bilateral foot contact, assessed using video analysis.
|
At each weekly assessment over 5 weeks
|
|
Wind-Up Phase 2 Duration
Prazo: At each weekly assessment over 5 weeks
|
Duration of the second operational wind-up phase, defined as the time from bilateral foot contact to frontal orientation toward the target, assessed using video analysis.
|
At each weekly assessment over 5 weeks
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Diretor de estudo: SAMUEL JOSE GAVIRIA ALZATE, PhD, Tecnológico de Antioquia
Publicações e links úteis
Publicações Gerais
- Hernández Sampieri R, Mendoza Torres CP. Metodología de la investigación: las rutas cuantitativa, cualitativa y mixta. Ciudad de México: McGraw-Hill Education; 2018.
- 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.
- 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.
- 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.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Outros números de identificação do estudo
- BASEBALL-PITCH-ANT-OBS-2026
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
Descrição do plano IPD
Informações sobre medicamentos e dispositivos, documentos de estudo
Estuda um medicamento regulamentado pela FDA dos EUA
Estuda um produto de dispositivo regulamentado pela FDA dos EUA
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .