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Attentional Focus and Feedback Timing in Children's Tennis Skill Learning

10 de setembro de 2026 atualizado por: Liying Yao, Guangzhou University

Effects of Attentional Focus and Feedback Timing on Children's Tennis Motor Skill Learning

This study evaluated how different attentional focus instructions and feedback timing affect tennis motor skill learning in children aged 9 to 12 years. The study used a school-clustered 4 × 2 factorial quasi-experimental design involving four primary schools in Shenzhen, China.

Each participating school implemented one of four attentional focus conditions: distal external focus, proximal external focus, internal focus, or neutral instruction. Within each school, eligible children were assigned to either immediate feedback or delayed summary feedback, resulting in eight experimental conditions. All participants completed the same standardized tennis training program for 12 weeks, with three 90-minute training sessions per week.

The study assessed children's performance in four tennis skills: forehand, backhand, volley, and serve. Skill-performance attainment and technique evaluation were assessed before and after the intervention. Retention and transfer of the learned skills were additionally assessed two weeks after completion of the intervention. The study was designed to determine whether attentional focus, feedback timing, or the interaction between these two factors influences children's acquisition, retention, and transfer of tennis motor skills.

Visão geral do estudo

Descrição detalhada

The study used a school-clustered 4 × 2 factorial quasi-experimental design to investigate the effects of attentional focus and feedback timing on children's tennis motor skill learning. The first experimental factor was attentional focus, with four levels: distal external focus, proximal external focus, internal focus, and neutral instruction. The second factor was feedback timing, with two levels: immediate feedback and delayed summary feedback.

The four attentional focus conditions were implemented at the school level. Each participating school was assigned one attentional focus condition according to the study implementation arrangement. Within each school, eligible participants were balanced according to sex, grade, and baseline tennis skill level and were then randomly assigned in a 1:1 ratio to either the immediate-feedback condition or the delayed-feedback condition using a computer-generated random sequence. This procedure resulted in eight experimental conditions.

All groups received the same standardized tennis training program for 12 weeks. Training was conducted three times per week, with each session lasting approximately 90 minutes. The training program included forehand, backhand, volley, and serve practice. The training content, progression, facilities, equipment, and instructor qualifications were standardized across study sites. The experimental differences between groups were limited to attentional focus instructions and the timing of feedback.

In the distal external-focus condition, children were instructed to focus on outcomes such as the ball's target location and flight trajectory. In the proximal external-focus condition, they focused on the interaction between the racket and the ball. In the internal-focus condition, they focused on body movements, movement technique, and force production. The neutral-instruction condition used conventional instructional language without a specific attentional focus cue. Participants receiving immediate feedback were provided with instructional or technical feedback immediately after each performance, whereas participants receiving delayed summary feedback received feedback after completion of a practice set.

Tennis motor skill learning was evaluated using standardized assessments of forehand, backhand, volley, and serve performance. The study examined skill acquisition after the 12-week intervention and subsequently assessed retention and transfer of the learned skills after a post-intervention interval.

Tipo de estudo

Intervencional

Inscrição (Real)

160

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

    • Guangdong
      • Shenzhen, Guangdong, China, 510000
        • Longhua Experimental Primary School
      • Shenzhen, Guangdong, China, 510000
        • Longhua Foreign Language School
      • Shenzhen, Guangdong, China, 510000
        • Minle Primary School
      • Shenzhen, Guangdong, China, 510000
        • Tiandong Primary School

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Filho

Aceita Voluntários Saudáveis

Sim

Descrição

Inclusion Criteria:

  • Children aged 9 to 12 years and enrolled in Grade 4 or Grade 6.
  • Have basic proficiency in the four tennis motor skills of forehand, backhand, volley, and serve and are able to participate in regular tennis training.
  • Right-handed.
  • In good physical condition, with no serious medical condition that would interfere with participation in tennis training.
  • Willing to participate in the study, with written informed consent provided by a parent or legal guardian.

Exclusion Criteria:

  • Serious cardiopulmonary disease, musculoskeletal injury, neurological disease, or any other condition that makes participation in moderate-intensity physical activity inappropriate.
  • A diagnosed psychiatric disorder or cognitive or behavioral condition that substantially interferes with understanding instructional cues or completing study assessments.
  • Recent acute injury or pain, or medical advice to temporarily refrain from physical activity.
  • Unable to complete the training, testing, or study data collection procedures according to the study protocol.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Outro
  • Alocação: Não randomizado
  • Modelo Intervencional: Atribuição fatorial
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Distal External Focus + Immediate Feedback
Participants received a standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They were instructed to use a distal external attentional focus by directing attention toward the target location and flight trajectory of the ball. Instructional and technical feedback consistent with this attentional focus was provided immediately after each performance.
During the standardized 12-week tennis training program, participants were instructed to direct their attention toward distal external effects of the movement, including the target location and flight trajectory of the ball. The attentional-focus instructions were incorporated into forehand, backhand, volley, and serve practice. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Participants received instructional and technical feedback immediately after each tennis skill performance. The feedback was consistent with the attentional-focus condition assigned to the participant and was intended to provide prompt information for adjustment of subsequent performance.
Experimental: Distal External Focus + Delayed Feedback
Participants received a standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They were instructed to use a distal external attentional focus by directing attention toward the target location and flight trajectory of the ball. Instructional and technical feedback consistent with this attentional focus was provided after completion of each practice set rather than immediately after each performance.
During the standardized 12-week tennis training program, participants were instructed to direct their attention toward distal external effects of the movement, including the target location and flight trajectory of the ball. The attentional-focus instructions were incorporated into forehand, backhand, volley, and serve practice. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Participants received instructional and technical feedback after completion of each practice set rather than immediately after each individual performance. Each practice set typically consisted of 10 to 15 balls. The feedback was consistent with the assigned attentional-focus condition and allowed participants time for self-perception, error recognition, and movement adjustment before receiving external feedback.
Experimental: Proximal External Focus + Immediate Feedback
Participants received a standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They were instructed to use a proximal external attentional focus by directing attention toward the point and moment of contact between the racket and the ball. Instructional and technical feedback consistent with this attentional focus was provided immediately after each performance.
Participants received instructional and technical feedback immediately after each tennis skill performance. The feedback was consistent with the attentional-focus condition assigned to the participant and was intended to provide prompt information for adjustment of subsequent performance.
During the standardized 12-week tennis training program, participants were instructed to direct their attention toward proximal external effects of the movement, particularly the point and moment of contact between the racket and the ball. The attentional-focus instructions were incorporated into forehand, backhand, volley, and serve practice. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Experimental: Proximal External Focus + Delayed Feedback
Participants received a standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They were instructed to use a proximal external attentional focus by directing attention toward the point and moment of contact between the racket and the ball. Instructional and technical feedback consistent with this attentional focus was provided after completion of each practice set.
Participants received instructional and technical feedback after completion of each practice set rather than immediately after each individual performance. Each practice set typically consisted of 10 to 15 balls. The feedback was consistent with the assigned attentional-focus condition and allowed participants time for self-perception, error recognition, and movement adjustment before receiving external feedback.
During the standardized 12-week tennis training program, participants were instructed to direct their attention toward proximal external effects of the movement, particularly the point and moment of contact between the racket and the ball. The attentional-focus instructions were incorporated into forehand, backhand, volley, and serve practice. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Experimental: Internal Focus + Immediate Feedback
Participants received a standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They were instructed to use an internal attentional focus by directing attention toward body movements, movement technique, and force-production sequence during tennis skill performance. Instructional and technical feedback was provided immediately after each performance.
Participants received instructional and technical feedback immediately after each tennis skill performance. The feedback was consistent with the attentional-focus condition assigned to the participant and was intended to provide prompt information for adjustment of subsequent performance.
During the standardized 12-week tennis training program, participants were instructed to direct their attention toward their own body movements, technical movement patterns, and force-production sequence during tennis skill performance. These instructions were incorporated into forehand, backhand, volley, and serve practice. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Experimental: Internal Focus + Delayed Feedback
Participants received a standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They were instructed to use an internal attentional focus by directing attention toward body movements, movement technique, and force-production sequence during tennis skill performance. Instructional and technical feedback was provided after completion of each practice set.
Participants received instructional and technical feedback after completion of each practice set rather than immediately after each individual performance. Each practice set typically consisted of 10 to 15 balls. The feedback was consistent with the assigned attentional-focus condition and allowed participants time for self-perception, error recognition, and movement adjustment before receiving external feedback.
During the standardized 12-week tennis training program, participants were instructed to direct their attention toward their own body movements, technical movement patterns, and force-production sequence during tennis skill performance. These instructions were incorporated into forehand, backhand, volley, and serve practice. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Comparador Ativo: Neutral Instruction + Immediate Feedback
Participants received the same standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They received conventional tennis instruction without a specific external or internal attentional focus cue. Instructional and technical feedback was provided immediately after each performance.
Participants received instructional and technical feedback immediately after each tennis skill performance. The feedback was consistent with the attentional-focus condition assigned to the participant and was intended to provide prompt information for adjustment of subsequent performance.
Participants received conventional tennis instructional cues during the standardized 12-week training program without specific external or internal attentional-focus instructions. Training content, progression, frequency, and duration were the same as in the other attentional-focus conditions. Training was conducted three times per week, with each session lasting approximately 90 minutes.
Comparador Ativo: Neutral Instruction + Delayed Feedback
Participants received the same standardized 12-week tennis training program, three sessions per week and 90 minutes per session. They received conventional tennis instruction without a specific external or internal attentional focus cue. Instructional and technical feedback was provided after completion of each practice set.
Participants received instructional and technical feedback after completion of each practice set rather than immediately after each individual performance. Each practice set typically consisted of 10 to 15 balls. The feedback was consistent with the assigned attentional-focus condition and allowed participants time for self-perception, error recognition, and movement adjustment before receiving external feedback.
Participants received conventional tennis instructional cues during the standardized 12-week training program without specific external or internal attentional-focus instructions. Training content, progression, frequency, and duration were the same as in the other attentional-focus conditions. Training was conducted three times per week, with each session lasting approximately 90 minutes.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Change in Tennis Skill-Performance Attainment Score From Baseline to Week 12
Prazo: Baseline and Week 12
Tennis skill-performance attainment was assessed for four tennis motor skills: forehand, backhand, volley, and serve. Participants completed predefined performance tasks, and their performance was evaluated according to prespecified task-specific scoring criteria. The primary outcome was the change in skill-performance attainment from baseline to the end of the 12-week intervention.
Baseline and Week 12
Change in Tennis Technique Evaluation Score From Baseline to Week 12
Prazo: Baseline and Week 12
Tennis technique was evaluated for forehand, backhand, volley, and serve using standardized technique-evaluation criteria. The assessment focused on movement structure, body coordination, racket and ball control, and overall technical quality. The primary outcome was the change in technique evaluation score from baseline to the end of the 12-week intervention.
Baseline and Week 12

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Tennis Skill Retention Score at Week 14
Prazo: Week 14 (2 weeks after completion of the intervention)
Retention of the learned tennis motor skills was assessed two weeks after completion of the 12-week intervention. Participants were evaluated on the stability of their performance in the learned tennis skills, including forehand, backhand, volley, and serve, using the predefined study assessment procedures.
Week 14 (2 weeks after completion of the intervention)
Tennis Skill Transfer Score at Week 14
Prazo: Week 14 (2 weeks after completion of the intervention)
Transfer of the learned tennis motor skills was assessed two weeks after completion of the 12-week intervention. Participants were evaluated on their ability to apply the learned tennis skills under modified task conditions using the predefined study assessment procedures.
Week 14 (2 weeks after completion of the intervention)

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

1 de setembro de 2024

Conclusão Primária (Real)

27 de dezembro de 2024

Conclusão do estudo (Real)

10 de janeiro de 2025

Datas de inscrição no estudo

Enviado pela primeira vez

10 de setembro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

10 de setembro de 2026

Primeira postagem (Real)

16 de setembro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

16 de setembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

10 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • TJUS2023-051

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Descrição do plano IPD

Individual participant data (IPD) will not be shared. Participants in this study are minors, and individual-level data are subject to the privacy and confidentiality protections specified in the ethics-approved study procedures. Study results will be reported only in aggregate form without disclosure of information that could identify individual participants.

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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 .

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