Motor Skills DevelopmentNCT07140224
Korfball-Based Training and Motor Skill Development
A study testing Korfball-Based Movement Training in people with Motor Skills Development and Physical Fitness, run by University of Gaziantep at 1 site in Turkey (Türkiye).
Trial summary
The goal of this randomized trial is to find out if an 8-week korfball-based training program can improve lower-body strength and jumping ability in children aged 10-12 years. Korfball is a mixed-gender sport that promotes teamwork and equal participation. Read more about this study
- Who is it for?
- Ages 10 to 12 yearsHealthy volunteers can take part
- Conditions the study is for
- Motor Skills Development, Physical Fitness, Physical Education and Training/Methods
- What is being tested?
- Korfball-Based Movement Training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 May 2025to 27 Jun 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 10 to 12 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Healthy children aged 10-12 years
- Regular participation in school-based physical activity or physical education classes
- Ability to attend training sessions and testing procedures for the full 8-week - period
- Written informed consent obtained from parents/guardians
Who cannot join
- Presence of chronic or acute illnesses (e.g., cardiovascular, respiratory, or metabolic diseases)
- Orthopedic or musculoskeletal injuries/disorders that may limit safe participation
- Neurological disorders affecting motor performance
- Lack of regular participation in physical activities prior to study enrollment
- Failure to obtain parental/guardian consent
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Korfball-Based Training and Motor Skill Development in Young Athletes: A Randomized Trial
The goal of this randomized trial is to find out if an 8-week korfball-based training program can improve lower-body strength and jumping ability in children aged 10-12 years. Korfball is a mixed-gender sport that promotes teamwork and equal participation.
The study will test two main questions:
Read more
Does korfball training increase explosive leg power measured by the Margaria-Kalamen Stair Climb Test? Does korfball training improve performance in the Standing Long Jump Test?
Children are randomly assigned to one of two groups:
Korfball Training Group: Participants take part in supervised korfball-based exercise sessions 3 times per week for 8 weeks, in addition to their normal school activities.
Control Group: Participants continue with standard school physical education classes only.
All participants complete both the Margaria-Kalamen Stair Climb Test and the Standing Long Jump Test before and after the 8-week period.
This study will show whether korfball training is an effective and inclusive way to improve explosive leg power and motor skills in school-aged children.
Read the detailed description
Korfball is a mixed-gender team sport that emphasizes cooperation, spatial awareness, and technical ball skills. Its unique format prohibits gender-based physical contact and requires players to coordinate offensive and defensive movements in a cooperative way. These characteristics make korfball not only a socially inclusive activity but also a potential tool for motor development in children. However, there is limited experimental evidence examining the physical benefits of korfball training in youth populations.
This randomized controlled trial was designed to investigate whether an 8-week korfball-based training program can improve explosive lower-body performance in children aged 10-12 years. A total of 30 participants were randomly assigned to either a korfball training group or a control group. The training group completed three 90-minute sessions per week for eight weeks, in addition to their regular school physical education classes. The control group continued with their standard school-based activities only.
The intervention program included structured korfball drills such as passing, shooting, lay-up techniques, and defensive footwork. Sessions were organized progressively from basic skills to more complex game-like movements. All training sessions were supervised by a certified physical education teacher to ensure safety and protocol fidelity.
Two validated physical performance tests were used to assess outcomes:
Margaria-Kalamen Stair Climb Test (MK): to evaluate anaerobic power by measuring the time taken to ascend stairs with predetermined step intervals.
Standing Long Jump Test (SLJ): to assess horizontal explosive power of the lower limbs.
Tests were conducted before and after the 8-week intervention under standardized conditions. Trained evaluators blinded to group assignments recorded all measurements. The primary outcome was change in Margaria-Kalamen test performance, while the secondary outcome was change in Standing Long Jump distance.
The study hypothesis was that participants in the korfball training group would demonstrate significantly greater improvements in both MK and SLJ performance compared to the control group, regardless of gender. By testing this hypothesis, the trial aims to provide evidence for korfball as a safe, inclusive, and effective training method for improving lower-limb explosive strength in school-aged children.
If positive, the findings could inform physical education curricula and youth sports programming, supporting the use of korfball-based activities as a practical approach to enhance motor development while promoting gender equality in sport participation.
- Being tested
- Korfball-Based Movement Training
- Keywords
- korfball, explosive power, mixed-gender training, youth sports, physical education
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Korfball-Based Movement TrainingOther
The weekly training content was structured as follows:
- Week 1: Chest pass, overhead pass, right-left hand pass, moving pass, cool-down (15 repetitions).
- Week 2: One-handed pass, penalty shot, defensive follow-up run, lay-up shot, cool-down (20 repetitions).
- Week 3: One-handed pass, diagonal passing, penalty shot, lay-up shot, short and long-distance shooting (25 repetitions).
- Week 4: Lay-up shot, V-cut shot, stationary short-distance shot, defensive follow-up run,penalty shot, cool-down (20 repetitions).
- Week 5: V-cut shot, stationary short-distance shot, front-of-the-basket shot, behind-the-basket short-distance shot (15 repetitions).
- Week 6: V-cut shot, lay-up shot, stationary shot, defensive follow-up run, penalty shot (20 repetitions).
- Week 7: One-handed pass, penalty shot, lay-up shot (right-left), shooting, V-cut shot (10 repetitions).
- Week 8: One-handed pass penalty shot, lay-up shot (right-left), stationary shot, V-cut shot (10 repetitions).
| Study group | Role | What they receive |
|---|---|---|
| Control | No intervention | Control group continued with their usual school-based physical education classes without any additional training (8 week). |
| Korfball Training Group | Experimental | The korfball training group participated in an eight-week korfball-based movement training program, three times a week, each session lasting 90 minutes. Training consistently occurred from 16:00 to 18:00 in an outdoor korfball court under coach supervision. Each session started with 10 minutes of warming up and 5 minutes of stretching exercises. The main session included 65 minutes of korfball-based movement training, followed by a 10-minute cool-down period. Receives: Other: Korfball-Based Movement Training |
What is being measured
The primary outcome is the main question the study is designed to answer.
Margaria-Kalamen Stair Climb Test (Explosive Power)
Change in anaerobic power output (watts) measured using the Margaria-Kalamen stair climb test. Participants sprinted up a staircase stepping on the 3rd, 6th, and 9th steps. Anaerobic power was calculated using the standard formula P = (m × g × h) / t, where m is body mass (kg), g is gravitational acceleration (9.81 m/s²), h is the vertical height between the 3rd and 9th steps (1.2 m), and t is the time taken to ascend (s).
Measured: Baseline (pre-test) and after 8 weeks of training (post-test)
Standing Long Jump Test (Horizontal Explosive Power)
Change in horizontal jump distance (cm) measured using the Standing Long Jump test. Participants jumped forward from a standing start with both feet together, and the best of three trials was recorded.
Measured: Baseline (pre-test) and after 8 weeks of training (post-test)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Aug 2025
- Study start1 May 2025
- Primary completion26 Jun 2025
- Study completion27 Jun 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Motor Skills DevelopmentStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Gaziantep
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Burak Karaca, University of Gaziantep
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07140224
- Sponsor's protocol ID
- 2025/04
- Status last verified
- Aug 2025
- First submitted
- 18 Aug 2025
- Last updated
- 29 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Individual participant data (IPD) underlying the results (e.g., test scores from Margaria-Kalamen and Standing Long Jump) will be available upon reasonable request from the corresponding author. De-identified datasets may be shared for academic research purposes only, following approval by the principal investigator and in compliance with data protection regulations.
Study at a glance
From the registry record, last updated by the sponsor on 29 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Korfball-Based Training and Motor Skill Development in Young Athletes: A Randomized Trial
- ClinicalTrials.gov ID
- NCT07140224
- Acronym / sponsor ID
- 2025/04
- Keywords
- korfball, explosive power, mixed-gender training, youth sports, physical education
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- University of GaziantepUniversity, hospital or other
- Study start
- 1 May 2025 (actual)
- Primary completion
- 26 Jun 2025 (actual)
- Study completion
- 27 Jun 2025 (actual)
- First posted
- 24 Aug 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this randomized trial is to find out if an 8-week korfball-based training program can improve lower-body strength and jumping ability in children aged 10-12 years. Korfball is a mixed-gender sport that promotes teamwork and equal participation.
The study will test two main questions:
Does korfball training increase explosive leg power measured by the Margaria-Kalamen Stair Climb Test? Does korfball training improve performance in the Standing Long Jump Test?
Children are randomly assigned to one of two groups:
Korfball Training Group: Participants take part in supervised korfball-based exercise sessions 3 times per week for 8 weeks, in addition to their normal school activities.
Control Group: Participants continue with standard school physical education classes only.
All participants complete both the Margaria-Kalamen Stair Climb Test and the Standing Long Jump Test before and after the 8-week period.
This study will show whether korfball training is an effective and inclusive way to improve explosive leg power and motor skills in school-aged children.
Detailed description
Korfball is a mixed-gender team sport that emphasizes cooperation, spatial awareness, and technical ball skills. Its unique format prohibits gender-based physical contact and requires players to coordinate offensive and defensive movements in a cooperative way. These characteristics make korfball not only a socially inclusive activity but also a potential tool for motor development in children. However, there is limited experimental evidence examining the physical benefits of korfball training in youth populations.
This randomized controlled trial was designed to investigate whether an 8-week korfball-based training program can improve explosive lower-body performance in children aged 10-12 years. A total of 30 participants were randomly assigned to either a korfball training group or a control group. The training group completed three 90-minute sessions per week for eight weeks, in addition to their regular school physical education classes. The control group continued with their standard school-based activities only.
The intervention program included structured korfball drills such as passing, shooting, lay-up techniques, and defensive footwork. Sessions were organized progressively from basic skills to more complex game-like movements. All training sessions were supervised by a certified physical education teacher to ensure safety and protocol fidelity.
Two validated physical performance tests were used to assess outcomes:
Margaria-Kalamen Stair Climb Test (MK): to evaluate anaerobic power by measuring the time taken to ascend stairs with predetermined step intervals.
Standing Long Jump Test (SLJ): to assess horizontal explosive power of the lower limbs.
Tests were conducted before and after the 8-week intervention under standardized conditions. Trained evaluators blinded to group assignments recorded all measurements. The primary outcome was change in Margaria-Kalamen test performance, while the secondary outcome was change in Standing Long Jump distance.
The study hypothesis was that participants in the korfball training group would demonstrate significantly greater improvements in both MK and SLJ performance compared to the control group, regardless of gender. By testing this hypothesis, the trial aims to provide evidence for korfball as a safe, inclusive, and effective training method for improving lower-limb explosive strength in school-aged children.
If positive, the findings could inform physical education curricula and youth sports programming, supporting the use of korfball-based activities as a practical approach to enhance motor development while promoting gender equality in sport participation.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Control | No intervention | –Control group continued with their usual school-based physical education classes without any additional training (8 week). |
| Korfball Training Group | Experimental | Other: Korfball-Based Movement TrainingThe korfball training group participated in an eight-week korfball-based movement training program, three times a week, each session lasting 90 minutes. Training consistently occurred from 16:00 to 18:00 in an outdoor korfball court under coach supervision. Each session started with 10 minutes of warming up and 5 minutes of stretching exercises. The main session included 65 minutes of korfball-based movement training, followed by a 10-minute cool-down period. |
Who may qualify
- Ages
- 10 to 12 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (4 listed)
- Healthy children aged 10-12 years
- Regular participation in school-based physical activity or physical education classes
- Ability to attend training sessions and testing procedures for the full 8-week - period
- Written informed consent obtained from parents/guardians
Key exclusion criteria (5 listed)
- Presence of chronic or acute illnesses (e.g., cardiovascular, respiratory, or metabolic diseases)
- Orthopedic or musculoskeletal injuries/disorders that may limit safe participation
- Neurological disorders affecting motor performance
- Lack of regular participation in physical activities prior to study enrollment
- Failure to obtain parental/guardian consent
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Korfball-Based Movement TrainingThe weekly training content was structured as follows: * Week 1: Chest pass, overhead pass, right-left hand pass, moving pass, cool-down (15 repetitions). * Week 2: One-handed pass, penalty shot, defensive follow-up run, lay-up shot, cool-down (20 repetitions). * Week 3: One-handed pass, diagonal passing, penalty shot, lay-up shot, short and long-distance shooting (25 repetitions). * Week 4: Lay-up shot, V-cut shot, stationary short-distance shot, defensive follow-up run,penalty shot, cool-down (20 repetitions). * Week 5: V-cut shot, stationary short-distance shot, front-of-the-basket shot, behind-the-basket short-distance shot (15 repetitions). * Week 6: V-cut shot, lay-up shot, stationary shot, defensive follow-up run, penalty shot (20 repetitions). * Week 7: One-handed pass, penalty shot, lay-up shot (right-left), shooting, V-cut shot (10 repetitions). * Week 8: One-handed pass penalty shot, lay-up shot (right-left), stationary shot, V-cut shot (10 repetitions). | Other | Korfball Training Group |
Primary outcome
Margaria-Kalamen Stair Climb Test (Explosive Power)
Time frame: Baseline (pre-test) and after 8 weeks of training (post-test)
Change in anaerobic power output (watts) measured using the Margaria-Kalamen stair climb test. Participants sprinted up a staircase stepping on the 3rd, 6th, and 9th steps. Anaerobic power was calculated using the standard formula P = (m × g × h) / t, where m is body mass (kg), g is gravitational acceleration (9.81 m/s²), h is the vertical height between the 3rd and 9th steps (1.2 m), and t is the time taken to ascend (s).
Standing Long Jump Test (Horizontal Explosive Power)
Time frame: Baseline (pre-test) and after 8 weeks of training (post-test)
Change in horizontal jump distance (cm) measured using the Standing Long Jump test. Participants jumped forward from a standing start with both feet together, and the best of three trials was recorded.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Aug 2025.
- Individual participant dataSharing planned: Yes. Individual participant data (IPD) underlying the results (e.g., test scores from Margaria-Kalamen and Standing Long Jump) will be available upon reasonable request from the corresponding author. De-identified datasets may be shared for academic research purposes only, following approval by the principal investigator and in compliance with data protection regulations.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Korfball-Based Movement Training in people with Motor Skills Development and Physical Fitness, run by University of Gaziantep at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Margaria-Kalamen Stair Climb Test (Explosive Power) (time frame: Baseline (pre-test) and after 8 weeks of training (post-test)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Aug 2025.