UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000061965 |
|---|---|
| Receipt number | R000070904 |
| Scientific Title | Effects of an 8-Week Self-Talk Training Program on Baseball Self-Efficacy and Psychological Competitive Ability in Junior High School Baseball Players: A Practical Psychological Support Program in School Sports Settings |
| Date of disclosure of the study information | 2026/06/18 |
| Last modified on | 2026/06/18 15:37:22 |
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Basic information
Public title
Effects of Self-Talk Training on Self-Efficacy and Psychological Competitive Ability in Junior High School Baseball Players
Acronym
Effects of Self-Talk Training on Self-Efficacy and Psychological Competitive Ability in Junior High School Baseball Players
Scientific Title
Effects of an 8-Week Self-Talk Training Program on Baseball Self-Efficacy and Psychological Competitive Ability in Junior High School Baseball Players: A Practical Psychological Support Program in School Sports Settings
Scientific Title:Acronym
A Practical Psychological Support Program in School Sports Settings
Region
| Japan |
Condition
Condition
self-talk training program
Classification by specialty
| Not applicable | Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
The purpose of this study is to investigate the effects of an 8-week self-talk training program on baseball self-efficacy and psychological competitive ability in junior high school baseball players.
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Change in Baseball Self-Efficacy Scale scores measured before and after the intervention.
Key secondary outcomes
Scores on the Diagnostic Inventory of Psychological Competitive Ability for Athletes DIPCA.3
Scores on DIPCA.3 subscales
Base
Study type
Interventional
Study design
Basic design
Single arm
Randomization
Non-randomized
Randomization unit
Blinding
Open -no one is blinded
Control
Uncontrolled
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment
Intervention
No. of arms
1
Purpose of intervention
Educational,Counseling,Training
Type of intervention
| Behavior,custom |
Interventions/Control_1
Participants will receive an 8-week psychological skills training program focused on self-talk.
The intervention will include education about self-talk, development of cognitive, emotional, and motivational self-talk skills, and application of these skills to baseball situations.
Participants will complete worksheets and practical assignments between sessions to facilitate the use of self-talk during training and competition.
Interventions/Control_2
Interventions/Control_3
Interventions/Control_4
Interventions/Control_5
Interventions/Control_6
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10
Eligibility
Age-lower limit
| 12 | years-old | <= |
Age-upper limit
| 15 | years-old | >= |
Gender
Male
Key inclusion criteria
Members of the target junior high school baseball team
Written informed consent obtained from both participants and their legal guardians
Able to participate throughout the intervention period
Key exclusion criteria
Individuals expected to be absent for an extended period during the intervention
Individuals unable to complete questionnaires
Individuals or guardians unwilling to participate
Target sample size
23
Research contact person
Name of lead principal investigator
| 1st name | akira |
| Middle name | |
| Last name | koga |
Organization
OSAKA UNIVERSITY OF HEALTH AND SPORT SCIENCES GRADUATE
Division name
SPORTS SCIENCE INSTITUTE
Zip code
5900496
Address
1-1 Asashirodai, Kumatori-cho, Sennan-gun, Osaka, Japan
TEL
09082304575
224m09@ouhs.ac.jp
Public contact
Name of contact person
| 1st name | akira |
| Middle name | |
| Last name | koga |
Organization
OSAKA UNIVERSITY OF HEALTH AND SPORT SCIENCES GRADUATE
Division name
SPORTS SCIENCE INSTITUTE
Zip code
5900496
Address
1-1 Asashirodai, Kumatori-cho, Sennan-gun, Osaka, Japan
TEL
09082304575
Homepage URL
224m09@ouhs.ac.jp
Sponsor or person
Institute
OSAKA UNIVERSITY OF HEALTH AND SPORT SCIENCES
Institute
Department
Personal name
akirakoga
Funding Source
Organization
OSAKA UNIVERSITY OF HEALTH AND SPORT SCIENCES
Organization
Division
Category of Funding Organization
Other
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Research Ethics Committee, Osaka University of Health and Sport Sciences
Address
1-1 Asashirodai, Kumatori-cho, Sennan-gun, Osaka, Japan
Tel
0724537022
y-taki@ouhs.ac.jp
Secondary IDs
Secondary IDs
NO
Study ID_1
Org. issuing International ID_1
Study ID_2
Org. issuing International ID_2
IND to MHLW
Institutions
Institutions
Other administrative information
Date of disclosure of the study information
| 2026 | Year | 06 | Month | 18 | Day |
Related information
URL releasing protocol
Publication of results
Unpublished
Result
URL related to results and publications
Number of participants that the trial has enrolled
Results
Results date posted
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Participant flow
Adverse events
Outcome measures
Plan to share IPD
IPD sharing Plan description
Progress
Recruitment status
Preinitiation
Date of protocol fixation
| 2026 | Year | 06 | Month | 18 | Day |
Date of IRB
Anticipated trial start date
| 2027 | Year | 04 | Month | 15 | Day |
Last follow-up date
| 2027 | Year | 04 | Month | 20 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2026 | Year | 06 | Month | 18 | Day |
Last modified on
| 2026 | Year | 06 | Month | 18 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000070904
