Effects of a 20-Week School-Based Periodized Strength Training Program on Motor Performance in Children (SBStrength)
Visão geral do estudo
Status
Intervenção / Tratamento
Descrição detalhada
Regular physical activity is an essential component of healthy growth and development during childhood. Current physical activity recommendations encourage children to participate in daily moderate-to-vigorous physical activity that includes muscle- and bone-strengthening activities several times per week. Within this context, supervised strength training represents a structured form of physical activity that can be incorporated into school-based exercise programs.
Adaptations to strength training are influenced by the organization of training variables, including intensity, volume, frequency, density, exercise selection, and progression. These variables are systematically manipulated through periodization to organize training across an intervention. Two of the most frequently used periodization strategies are linear periodization, characterized by progressive increases in training intensity accompanied by reductions in training volume, and nonlinear periodization, in which training variables are modified more frequently throughout the training program.
Although both periodization models are commonly applied in resistance training, comparatively few investigations have evaluated their application in school-aged children. Existing studies have primarily involved young athletes or sport-specific populations, and information regarding the comparative use of linear and nonlinear periodization in school-based interventions remains limited. Additional randomized controlled trials are needed to evaluate these programming strategies in children using standardized measures of motor performance.
This study is a 20-week randomized controlled trial conducted in schoolchildren. Participants are randomly assigned to one of three groups: a linear periodization group, a nonlinear periodization group, or a control group that continues regular physical education classes. The intervention consists of three supervised strength training sessions per week for the intervention groups.
Motor performance is assessed before and after the intervention using standardized field-based tests of lower-body muscular power, upper-body muscular power, sprint performance, and agility. Comparisons are performed between the linear periodization group, the nonlinear periodization group, and the control group according to the study protocol.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Norte de Santander Department
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Pamplona, Norte de Santander Department, Colômbia, 543050
- IE Normal Superior Pamplona
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Pamplona, Norte de Santander Department, Colômbia, 543050
- Institución Educativa Sede José Antonio Galán
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Pamplona, Norte de Santander Department, Colômbia, 543050
- Seminario Menor Santo tomas de Aquino
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Filho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Schoolchildren enrolled in one of the participating educational institutions.
- Approximately 12-13 years of age.
- Willing to participate in the study.
- Written informed consent provided by parents or legal guardians.
- Availability to participate in all assessment sessions.
Exclusion Criteria:
- Medical history that prevented participation in sports practice (cardiovascular disease, neurological disease, or chronic respiratory disease).
- Musculoskeletal injuries and/or bone malformations at the time of the study.
- Recent injury before study participation.
- Absence during pre-test or post-test assessments.
- Failure to attend at least 80% of the intervention sessions (experimental groups).
- Participation in systematic physical activity or organized sports outside the school setting.
- Lack of written parental or legal guardian consent.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Outro
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Dobro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Sem intervenção: Control Group (CG)
Participants attended only regular physical education classes and did not receive the strength training intervention.
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Experimental: Linear Periodization Group (LPG)
Participants completed a 20-week school-based strength training program using a linear periodization model, performed three times per week in extracurricular sessions.
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Participants completed a 20-week school-based periodized strength training program conducted during extracurricular sessions three times per week.
Participants were assigned to either a linear periodization group or a nonlinear periodization group.
The program aimed to improve motor performance through structured strength training exercises adapted to school-aged children.
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Experimental: Nonlinear Periodization Group (NLPG)
Participants completed a 20-week school-based strength training program using a nonlinear periodization model, performed three times per week in extracurricular sessions.
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Participants completed a 20-week school-based periodized strength training program conducted during extracurricular sessions three times per week.
Participants were assigned to either a linear periodization group or a nonlinear periodization group.
The program aimed to improve motor performance through structured strength training exercises adapted to school-aged children.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Motor Performance in Schoolchildren
Prazo: 20 weeks
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Changes in motor performance evaluated through: Countermovement jump (cm) Squat jump (cm) Standing long jump (cm) 10 × 5 m shuttle run (s) Medicine ball throw (cm) |
20 weeks
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Dennis G Contreras, Doctor, Universidad de Pamplona
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
- UPamplona
Plano para dados de participantes individuais (IPD)
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Descrição do plano IPD
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