Youth Baseball Speed, Sprint Training, Weighted Vest, Change of DirectionSWIFT-BASENCT07030296
Effects of Sprint Training With and Without Weighted Vests on Speed in Youth Baseball Players
A study testing Sprint Training With Weighted Vest and Sprint Training Without Weighted Vest in people with Youth Baseball Speed, Sprint Training, Weighted Vest, Change of Direction, run by Federal University of Vicosa at 1 site in Colombia.
Trial summary
Brief Summary We want to find out whether training with a weighted vest can help improve speed in U-14 baseball players. To do this, we will conduct a study with athletes like you, comparing performance before and after the training program. Read more about this study
- Who is it for?
- Ages 13 to 14 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Youth Baseball Speed, Sprint Training, Weighted Vest, Change of Direction
- What is being tested?
- Sprint Training With Weighted Vest and Sprint Training Without Weighted Vest
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteColombia
- Study dates
- 1 Feb 2025to 10 Apr 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 13 to 14 years
- Men only
- Healthy volunteers accepted
- Child
Who may be able to join
- Male athletes aged 13 to 14 years
- Member of the Tigres Baseball Club of San Pedro de Urabá
- Signed informed consent from parent or legal guardian
- Regular attendance at training sessions during the intervention period
Who cannot join
- Current musculoskeletal injury
- Regular participation in other sports or physical training programs
- Failure to complete pre- and post-intervention tests
- Withdrawal from the club during the study period
Trial locations and contacts
1 site in 1 country.
Colombia1 site
Club de Baseball Tigers de San Pedro de Uraba
Medellín, Antioquia
About this study
Official title: Effects of Sprint Training With and Without a Weighted Vest on Running Speed in Pre-adolescent Baseball Players
Brief Summary We want to find out whether training with a weighted vest can help improve speed in U-14 baseball players. To do this, we will conduct a study with athletes like you, comparing performance before and after the training program.
How will we do it?
Read more
Participants will be randomly assigned to one of two groups:
Group 1: Will train with a weighted vest.
Group 2: Will train without a weighted vest.
Both groups will follow the same training program over 16 sessions. Running speed will be measured before and after the program to evaluate any improvements.
Who can participate?
Boys aged 13 to 14 years.
Members of the Tigres Baseball Club from San Pedro de Urabá.
Must have permission from a parent or legal guardian.
Who cannot participate?
Players with current injuries.
Those who regularly practice another sport.
Those who leave the club or are unable to complete the pre- and post-tests.
Is it safe? Yes! All procedures follow safety guidelines and will be conducted with informed consent from players and their families. Our goal is to enhance sports performance in a safe and effective way.
Read the detailed description
This randomized controlled trial aims to evaluate the effects of sprint training with and without a weighted vest on running speed in male U-14 baseball players. The intervention will consist of a standardized sprint training program performed over 16 sessions (2-3 sessions per week for approximately 6 weeks). Participants will be randomly assigned into two groups: an experimental group using weighted vests and a control group without weighted vests.
The weighted vest will represent approximately 10% of the participant's body weight and will be worn during specific sprint training exercises. Both groups will perform the same sprint-based training protocol, including linear sprints and acceleration drills, under the supervision of qualified coaches.
The primary outcome will be sprint performance, assessed via time over 20 meters (with or without intermediate splits, depending on equipment availability). Measurements will be taken at baseline and after completion of the training program.
Inclusion and exclusion criteria have been defined to ensure participant safety and homogeneity of the sample. Ethical approval has been obtained, and informed consent will be secured from parents or legal guardians before participation. This study intends to contribute to evidence-based strategies for improving speed in youth baseball players through load-based sprint training interventions.
- Being tested
- Sprint Training With Weighted Vest, Sprint Training Without Weighted Vest
- Keywords
- Sprint training, weighted vest, baseball, youth athletes, speed performance
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sprint Training With Weighted VestBehavioural
Also called Resisted Sprint Training
Participants performed a sprint training program wearing a weighted vest equal to approximately 10% of their body weight. The program lasted 6 weeks and included 16 sessions of linear and change-of-direction sprint drills. The goal was to examine whether the added external load improved running speed over 30 and 60 yards.
Sprint Training Without Weighted VestBehavioural
Also called Unresisted Sprint Training
Participants completed the same sprint training program as the experimental group but without the use of a weighted vest. The intervention lasted 6 weeks and consisted of 16 sessions including sprint and agility exercises. This group served as the control condition to assess the effect of external resistance.
| Study group | Role | What they receive |
|---|---|---|
| Sprint Training With Weighted Vest | Experimental | Participants in this arm performed sprint training while wearing a weighted vest equivalent to approximately 10% of their body weight. The program consisted of 16 sessions over six weeks and included linear sprints and change-of-direction drills. Sprint speed was assessed before and after the intervention. Receives: Behavioral: Sprint Training With Weighted Vest |
| Sprint Training Without Weighted Vest | Active comparator | Participants in this group completed the same sprint training program as the experimental group but without wearing a weighted vest. The program lasted 16 sessions over approximately six weeks and included linear sprints and agility drills. Sprint performance was measured before and after the intervention. Receives: Behavioral: Sprint Training Without Weighted Vest |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in 30-yard sprint time
Time (in seconds) to complete a linear 30-yard sprint. Used to assess improvements in short-distance speed after the intervention.
Measured: Measured at baseline (pre-intervention) and after 16 training sessions (post-intervention), approximately 6 weeks apart.
Change in 60-yard sprint time
Time (in seconds) to complete a 60-yard linear sprint. Assesses improvements in extended sprint speed.
Measured: Pre- and post-intervention (6 weeks apart)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Jun 2025
- Study start1 Feb 2025
- Primary completion10 Apr 2025
- Study completion10 Apr 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Youth Baseball Speed, Sprint Training, Weighted Vest, Change of DirectionStudies 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
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- This was a parallel-group randomized controlled trial. Participants (U-14 male baseball players) were randomly assigned to one of two groups: one group performed sprint training with a weighted vest (approximately 10% of body weight), and the other group performed the same sprint training protocol without a vest. The intervention included 16 training sessions over approximately 6 weeks. Sprint performance was measured before and after the intervention using 30-yard, 60-yard, and 60-yard change-of-direction tests. Randomization was conducted using simple random allocation.
- Masking
- None (open label)
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Federal University of Vicosa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Édison Andrés Pérez Bedoya, Federal University of Vicosa
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07030296
- Sponsor's protocol ID
- Tecnológico de Antioquia
- Acronym
- SWIFT-BASE
- Status last verified
- Jun 2025
- First submitted
- 12 Jun 2025
- Last updated
- 22 Jun 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: IPD will be shared upon reasonable request. De-identified data may be available to qualified researchers after publication of the main findings.
Study at a glance
From the registry record, last updated by the sponsor on 22 Jun 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Sprint Training With and Without a Weighted Vest on Running Speed in Pre-adolescent Baseball Players
- ClinicalTrials.gov ID
- NCT07030296
- Acronym / sponsor ID
- SWIFT-BASE / Tecnológico de Antioquia
- Keywords
- Sprint training, weighted vest, baseball, youth athletes, speed performance
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Federal University of VicosaUniversity, hospital or other
- Study start
- 1 Feb 2025 (actual)
- Primary completion
- 10 Apr 2025 (actual)
- Study completion
- 10 Apr 2025 (actual)
- First posted
- 22 Jun 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.
Brief Summary We want to find out whether training with a weighted vest can help improve speed in U-14 baseball players. To do this, we will conduct a study with athletes like you, comparing performance before and after the training program.
How will we do it?
Participants will be randomly assigned to one of two groups:
Group 1: Will train with a weighted vest.
Group 2: Will train without a weighted vest.
Both groups will follow the same training program over 16 sessions. Running speed will be measured before and after the program to evaluate any improvements.
Who can participate?
Boys aged 13 to 14 years.
Members of the Tigres Baseball Club from San Pedro de Urabá.
Must have permission from a parent or legal guardian.
Who cannot participate?
Players with current injuries.
Those who regularly practice another sport.
Those who leave the club or are unable to complete the pre- and post-tests.
Is it safe? Yes! All procedures follow safety guidelines and will be conducted with informed consent from players and their families. Our goal is to enhance sports performance in a safe and effective way.
Detailed description
This randomized controlled trial aims to evaluate the effects of sprint training with and without a weighted vest on running speed in male U-14 baseball players. The intervention will consist of a standardized sprint training program performed over 16 sessions (2-3 sessions per week for approximately 6 weeks). Participants will be randomly assigned into two groups: an experimental group using weighted vests and a control group without weighted vests.
The weighted vest will represent approximately 10% of the participant's body weight and will be worn during specific sprint training exercises. Both groups will perform the same sprint-based training protocol, including linear sprints and acceleration drills, under the supervision of qualified coaches.
The primary outcome will be sprint performance, assessed via time over 20 meters (with or without intermediate splits, depending on equipment availability). Measurements will be taken at baseline and after completion of the training program.
Inclusion and exclusion criteria have been defined to ensure participant safety and homogeneity of the sample. Ethical approval has been obtained, and informed consent will be secured from parents or legal guardians before participation. This study intends to contribute to evidence-based strategies for improving speed in youth baseball players through load-based sprint training interventions.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- This was a parallel-group randomized controlled trial. Participants (U-14 male baseball players) were randomly assigned to one of two groups: one group performed sprint training with a weighted vest (approximately 10% of body weight), and the other group performed the same sprint training protocol without a vest. The intervention included 16 training sessions over approximately 6 weeks. Sprint performance was measured before and after the intervention using 30-yard, 60-yard, and 60-yard change-of-direction tests. Randomization was conducted using simple random allocation.
| Arm | Type | Receives |
|---|---|---|
| Sprint Training With Weighted Vest | Experimental | Behavioral: Sprint Training With Weighted VestParticipants in this arm performed sprint training while wearing a weighted vest equivalent to approximately 10% of their body weight. The program consisted of 16 sessions over six weeks and included linear sprints and change-of-direction drills. Sprint speed was assessed before and after the intervention. |
| Sprint Training Without Weighted Vest | Active comparator | Behavioral: Sprint Training Without Weighted VestParticipants in this group completed the same sprint training program as the experimental group but without wearing a weighted vest. The program lasted 16 sessions over approximately six weeks and included linear sprints and agility drills. Sprint performance was measured before and after the intervention. |
Who may qualify
- Ages
- 13 to 14 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (4 listed)
- Male athletes aged 13 to 14 years
- Member of the Tigres Baseball Club of San Pedro de Urabá
- Signed informed consent from parent or legal guardian
- Regular attendance at training sessions during the intervention period
Key exclusion criteria (4 listed)
- Current musculoskeletal injury
- Regular participation in other sports or physical training programs
- Failure to complete pre- and post-intervention tests
- Withdrawal from the club during the study period
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 |
|---|---|---|
| Sprint Training With Weighted VestAlso: Resisted Sprint TrainingParticipants performed a sprint training program wearing a weighted vest equal to approximately 10% of their body weight. The program lasted 6 weeks and included 16 sessions of linear and change-of-direction sprint drills. The goal was to examine whether the added external load improved running speed over 30 and 60 yards. | Behavioural | Sprint Training With Weighted Vest |
| Sprint Training Without Weighted VestAlso: Unresisted Sprint TrainingParticipants completed the same sprint training program as the experimental group but without the use of a weighted vest. The intervention lasted 6 weeks and consisted of 16 sessions including sprint and agility exercises. This group served as the control condition to assess the effect of external resistance. | Behavioural | Sprint Training Without Weighted Vest |
Primary outcome
Change in 30-yard sprint time
Time frame: Measured at baseline (pre-intervention) and after 16 training sessions (post-intervention), approximately 6 weeks apart.
Time (in seconds) to complete a linear 30-yard sprint. Used to assess improvements in short-distance speed after the intervention.
Change in 60-yard sprint time
Time frame: Pre- and post-intervention (6 weeks apart)
Time (in seconds) to complete a 60-yard linear sprint. Assesses improvements in extended sprint speed.
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 22 Jun 2025.
- Individual participant dataSharing planned: Yes. IPD will be shared upon reasonable request. De-identified data may be available to qualified researchers after publication of the main findings.
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 Sprint Training With Weighted Vest and Sprint Training Without Weighted Vest in people with Youth Baseball Speed, Sprint Training, Weighted Vest, Change of Direction, run by Federal University of Vicosa at 1 site in Colombia.
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 4 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 22 Jun 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 Colombia. 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?
Change in 30-yard sprint time (time frame: Measured at baseline (pre-intervention) and after 16 training sessions (post-intervention), approximately 6 weeks apart.). 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 22 Jun 2025.