UMIN-ICDS Clinical Trial
| Unique ID issued by UMIN | UMIN000059101 |
|---|---|
| Receipt number | R000067610 |
| Scientific Title | Biomechanical analysis of the inside-of-the-foot kick focusing on the ground reaction force and center of pressure of the support leg under varying approach angles |
| Date of disclosure of the study information | 2025/09/16 |
| Last modified on | 2025/09/16 21:52:29 |
* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments
Basic information
Public title
Biomechanical analysis of the inside-of-the-foot kick focusing on the ground reaction force and center of pressure of the support leg under varying approach angles
Acronym
Biomechanical analysis of the inside-of-the-foot kick focusing on the ground reaction force and center of pressure of the support leg under varying approach angles
Scientific Title
Biomechanical analysis of the inside-of-the-foot kick focusing on the ground reaction force and center of pressure of the support leg under varying approach angles
Scientific Title:Acronym
Biomechanical analysis of the inside-of-the-foot kick focusing on the ground reaction force and center of pressure of the support leg under varying approach angles
Region
| Japan |
Condition
Condition
Healthy adult subjects with more than six years of soccer experience at the junior high and high school levels, with the right lower limb as the dominant leg, and without any orthopedic disorders of the lower extremities
Classification by specialty
| Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
This study investigates how different approach angles affect body posture during the inside-of-the-foot kick in soccer. The inside kick is mainly used for accurate passes and short-range shots, while the instep kick is used for powerful shots and long passes. Prior research has shown that increasing the approach angle in instep kicks leads to greater lateral body inclination, but few studies have examined this in inside kicks. The present study focuses on support leg joint angles and ground reaction forces to clarify posture changes. The findings are expected to provide insights into postural control strategies, contributing to both performance improvement and injury prevention.
Basic objectives2
Others
Basic objectives -Others
The purpose of this study is to examine the influence of different approach angles on body posture during the inside-of-the-foot kick.
Trial characteristics_1
Exploratory
Trial characteristics_2
Explanatory
Developmental phase
Not applicable
Assessment
Primary outcomes
Ground reaction force of the support leg
Center of pressure and its coordinates relative to the plantar surface
Shank inclination angle
Trunk lateral flexion angle
Pelvic tilt angle
Key secondary outcomes
Age, height, weight, and past medical history
Lower limb joint angles (ankle, knee, and hip joints)
Base
Study type
Interventional
Study design
Basic design
Single arm
Randomization
Non-randomized
Randomization unit
Blinding
Open -no one is blinded
Control
Self control
Stratification
NO
Dynamic allocation
NO
Institution consideration
Institution is not considered as adjustment factor.
Blocking
NO
Concealment
No need to know
Intervention
No. of arms
1
Purpose of intervention
Educational,Counseling,Training
Type of intervention
| Other |
Interventions/Control_1
A size 5 soccer ball (diameter: 22 cm) was used, and a circular target (diameter: 11 cm) was placed 3 m away. The participants wore sports innerwear (top and bottom) and their accustomed athletic shoes. Before the measurements, they performed 5 practice inside-of-the-foot kicks from each approach angle to familiarize themselves with the one-step approach on the force plate. During the kicking trials, participants were instructed to perform the movement with the intention of passing the ball to a teammate, to prevent the ball from rising, and to kick the ball as quickly as possible. A trial was considered successful when the ball hit any part of the target. The 3 experimental conditions were as follows: 1) inside-of-the-foot kick from a 0 approach angle, 2) inside-of-the-foot kick from a 45 approach angle, and 3) inside-of-the-foot kick from a 90 approach angle. For each condition, participants continued kicking until 5 successful trials were obtained. The order of the conditions was randomized. The total measurement time per participant was approximately 60 to 90 minutes.
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
| 18 | years-old | <= |
Age-upper limit
| 40 | years-old | >= |
Gender
Male
Key inclusion criteria
Individuals with more than six years of soccer experience at the junior high and high school levels
Individuals whose dominant leg is the right lower limb
Healthy adults without orthopedic or internal medical disorders
Individuals who provided informed consent to participate in the study
Key exclusion criteria
Individuals who did not provide consent to participate in the study
Individuals with orthopedic disorders that could affect the study, such as fractures, sprains, or muscle injuries
Individuals with a Cumberland Ankle Instability Tool (CAIT) score of 25 or lower for the left foot
Individuals who did not consent to being recorded (filmed)
Target sample size
28
Research contact person
Name of lead principal investigator
| 1st name | Takehiko |
| Middle name | |
| Last name | Yamaji |
Organization
Gunma University
Division name
Graduate School of Health Sciences, Gunma University, Department of Rehabilitation Sciences
Zip code
3718514
Address
3-39-22, Showa-machi, Maebashi City, Gunma Prefecture, Japan
TEL
0272208947
tyamaji@gunma-u.ac.jp
Public contact
Name of contact person
| 1st name | Takehiko |
| Middle name | |
| Last name | Yamaji |
Organization
Gunma University
Division name
Graduate School of Health Sciences, Gunma University, Department of Rehabilitation Sciences
Zip code
3718514
Address
3-39-22, Showa-machi, Maebashi City, Gunma Prefecture, Japan
TEL
0272208947
Homepage URL
tyamaji@gunma-u.ac.jp
Sponsor or person
Institute
Gunma University
Institute
Department
Personal name
Funding Source
Organization
Nothing
Organization
Division
Category of Funding Organization
Self funding
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
ChatGPT: Ethics Committee for Medical Research Involving Human Subjects
Address
3-39-15, Showa-machi, Maebashi City, Gunma Prefecture, Japan
Tel
0272208740
hitotaisho-ciru@ml.gunma-u.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
| 2025 | Year | 09 | Month | 16 | 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
Open public recruiting
Date of protocol fixation
| 2025 | Year | 08 | Month | 13 | Day |
Date of IRB
| 2025 | Year | 08 | Month | 13 | Day |
Anticipated trial start date
| 2025 | Year | 09 | Month | 16 | Day |
Last follow-up date
| 2025 | Year | 10 | Month | 31 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2025 | Year | 09 | Month | 16 | Day |
Last modified on
| 2025 | Year | 09 | Month | 16 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000067610
