Sport PerformanceNCT07096492
Strength and Plyometric Training in Swimming
A study testing Standard Swimming Training, Plyometric Training and Strength Training in people with Sport Performance and Biomechanics, run by Istinye University at 1 site in Turkey (Türkiye).
Trial summary
A total of 18 participants are planned to be included in the study. Participants will be randomly assigned into two groups in the order of their arrival. One group will perform strength exercises in addition to standard swim training (strength group), while the other group will perform plyometric exercises in addition… Read more about this study
- Who is it for?
- Ages 10 to 17 yearsHealthy volunteers can take part
- Conditions the study is for
- Sport Performance, Biomechanics, Plyometric Exercises
- What is being tested?
- Standard Swimming Training, Plyometric Training and Strength Training
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 18 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 7 Mar 2025to 1 May 2026
- 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 17 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
None listed.
Who cannot join
- Presence of a health condition requiring regular medical check-ups (e.g., cardiovascular, respiratory, or musculoskeletal disorders).
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Beylikdüzü Yüzme Kulübü
Istanbul, Beylikdüzü, 34528
About this study
Official title: Comparison of the Effects of Strength and Plyometric Training in 50-Meter Swimming
A total of 18 participants are planned to be included in the study. Participants will be randomly assigned into two groups in the order of their arrival. One group will perform strength exercises in addition to standard swim training (strength group), while the other group will perform plyometric exercises in addition to standard swim training (plyometric group). Both groups will participate in two training sessions per week for a duration of 8 weeks. The 50m sprint biomechanics, stroke frequency, or overall performance will be evaluated before and after the intervention.
Read the detailed description
In sprint swimming events such as the 50-meter race, the ability to generate explosive power and maintain efficient biomechanics is critical for achieving peak performance. Plyometric training, particularly progressive bounding and long jump exercises, has been shown to effectively enhance the kinetic and kinematic parameters essential for swimming starts. This form of training plays a key role in sprint events that demand rapid propulsion, as it conditions the neuromuscular system to produce power quickly. As such, plyometric exercises directly contribute to improved initial push-off phases and overall sprint performance in short-distance swimming.
Similarly, strength training has a significant role in improving stroke length and stroke frequency. Low-volume, high-speed, and high-force strength training programs are particularly effective in transferring gains to swimming-specific mechanics. These improvements enhance stroke efficiency and power output, resulting in improved performance outcomes. In young swimmers, land-based strength and conditioning programs have demonstrated improvements in biomechanics, enabling swimmers to maintain higher speeds over 50 meters with minimal energy loss and more powerful strokes.
Collectively, these findings suggest that integrating plyometric and strength training into the training programs of young swimmers may yield beneficial effects on sprint biomechanics and overall performance. The current study aims to investigate the comparative effects of these two training modalities-plyometric and strength training-on 50-meter sprint performance and biomechanics in young swimmers. The results are expected to offer valuable insights into optimal conditioning strategies that support athletic development in competitive swimming.
Hypotheses:
Null Hypothesis (H₀): There is no significant difference in 50-meter sprint biomechanics, stroke frequency, or overall performance between young swimmers who undergo plyometric training in addition to swim training and those who undergo strength training in addition to swim training.
Alternative Hypothesis (H₁): There is a significant difference in 50-meter sprint biomechanics, stroke frequency, or overall performance between young swimmers who undergo plyometric training in addition to swim training and those who undergo strength training in addition to swim training.
Objectives:
To determine the chronic effects of plyometric training, in addition to regular swim training, on sprint biomechanics in young swimmers.
To evaluate the effects of strength training, in addition to regular swim training, on sprint biomechanics in young swimmers.
To compare developments in stroke frequency between the plyometric and strength training groups.
To examine the overall changes in 50-meter sprint performance in both training groups over the eight-week training period.
- Conditions
- Sport Performance, Biomechanics, Plyometric Exercises, Strength Training Effects, Swimming
- Being tested
- Standard Swimming Training, Plyometric Training, Strength Training
- Keywords
- Performance, Speed, Power, Biomechanics, Youth Swimmers
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Standard Swimming TrainingOther
Warm-Up: 1500 meters. Main set: 2000-3000 meters. Post-set: 1000 meters. Cool-Down: 200-400 meters.
Plyometric TrainingOther
The plyometric training intervention will focus on developing explosive power and reaction speed through various jumping and landing exercises. Progressive overload principles will be applied, with progression achieved through increasing sets and intensity. Plyometric exercises will be performed twice a week, similar to the strength group, and will begin with 3 sets of 3 repetitions in the first week. As the body adapts to the exercises, one additional set will be added each week until the third week, which will conclude with 5 sets. In the fourth week, a deload will be incorporated with 2 sets to allow for recovery. After the deload week, intensity will increase, either by performing exercises faster or exerting maximum effort during each repetition. Upper-body exercises will include the medicine ball slam, sitting medicine ball side passes, and medicine ball chest passes, focusing on explosive upper body movements. Lower-body exercises will consist of standing long jumps, partner med
Strength TrainingOther
The strength training intervention was designed to supplement standard swim training with a structured, full-body resistance program aimed at enhancing muscular strength and swimming biomechanics through progressive overload. Participants in the strength group engaged in two sessions per week for each major muscle group. Training commenced with 3 sets of 8 repetitions per exercise during the first week, with weekly increases in training volume until the third week (5 sets), followed by a deload week (3 sets) to promote recovery. The subsequent four weeks maintained a consistent 5-set structure, with progression achieved through incremental increases in load. Each session began with lower-body exercises to prioritize large muscle group activation and maximize session efficiency. Lower-body exercises included dumbbell goblet squats, step-ups, Romanian deadlifts, TRX hamstring curls, and calf raises, while upper-body work featured push-ups, TRX rows, dumbbell rows, and dumbbell shoulder p
| Study group | Role | What they receive |
|---|---|---|
| Plyometric Group | Experimental | Not described Receives: Other: Standard Swimming Training; Other: Plyometric Training |
| Strength Group | Experimental | Not described Receives: Other: Standard Swimming Training; Other: Strength Training |
What is being measured
The primary outcome is the main question the study is designed to answer.
50m Sprint Time (Overall Performance)
The 50m sprint time is used as a direct measure of swimming performance and is evaluated both in freestyle and in the swimmer's primary stroke. This test is conducted before and after the 8-week training intervention using a stopwatch and high-resolution video equipment. Time splits are also recorded for the 15m and 25m marks to assess acceleration and speed maintenance phases. This measure provides a clear indication of whether the intervention (strength or plyometric training) leads to improved sprint capacity in competitive youth swimmers.
Measured: Through study completion, an average of 12 months
Sprint biomechanics and stroke frequency
Biomechanics are assessed through underwater and above-water video analysis to evaluate body alignment, stroke path, and coordination. Stroke frequency, calculated from the same footage by timing three full stroke cycles, reflects how quickly a swimmer completes strokes. Together, these measures reveal whether performance gains stem from technical improvements, faster turnover, or more effective propulsion.
Measured: Through study completion, an average of 12 months
Secondary outcomes (2)
Upper and Lower Body Muscle Strength
Muscle strength is assessed using a Lafayette Hand-Held Dynamometer, which measures isometric force output in key joints (e.g., shoulder, hip, knee) for both upper and lower limbs. Each movement is tested in a standardized position, with three trials averaged per joint action. This outcome helps determine how much the dryland training programs contribute to the development of raw muscular strength, which is a foundational quality for explosive swimming movements.
Measured: Through study completion, an average of 12 months
Lower Body Explosive Power (Standing Long Jump Test)
This test evaluates leg power through horizontal jump distance. Participants perform the test by bending their knees and using their arms to generate maximum forward momentum. The longest of several attempts is recorded as the final result. This test is especially relevant for assessing the effectiveness of the plyometric training group, as it reflects improvements in explosive leg power, which is critical for starts and turns in sprint swimming.
Measured: Through study completion, an average of 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Jul 2025
- Study start7 Mar 2025
- Primary completion1 May 2026
- Study completion1 May 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Sport PerformanceStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 18 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istinye University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Çiçek Günday, Istinye University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07096492
- Sponsor's protocol ID
- 07032025
- Status last verified
- Jun 2026
- First submitted
- 24 Jul 2025
- Last updated
- 16 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 16 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of the Effects of Strength and Plyometric Training in 50-Meter Swimming
- ClinicalTrials.gov ID
- NCT07096492
- Acronym / sponsor ID
- 07032025
- Conditions
- Sport Performance, Biomechanics, Plyometric Exercises, Strength Training Effects, Swimming
- Keywords
- Performance, Speed, Power, Biomechanics, Youth Swimmers
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 18 participants (actual)
- Lead sponsor
- Istinye UniversityUniversity, hospital or other
- Study start
- 7 Mar 2025 (actual)
- Primary completion
- 1 May 2026 (actual)
- Study completion
- 1 May 2026 (actual)
- First posted
- 31 Jul 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.
A total of 18 participants are planned to be included in the study. Participants will be randomly assigned into two groups in the order of their arrival. One group will perform strength exercises in addition to standard swim training (strength group), while the other group will perform plyometric exercises in addition to standard swim training (plyometric group). Both groups will participate in two training sessions per week for a duration of 8 weeks. The 50m sprint biomechanics, stroke frequency, or overall performance will be evaluated before and after the intervention.
Detailed description
In sprint swimming events such as the 50-meter race, the ability to generate explosive power and maintain efficient biomechanics is critical for achieving peak performance. Plyometric training, particularly progressive bounding and long jump exercises, has been shown to effectively enhance the kinetic and kinematic parameters essential for swimming starts. This form of training plays a key role in sprint events that demand rapid propulsion, as it conditions the neuromuscular system to produce power quickly. As such, plyometric exercises directly contribute to improved initial push-off phases and overall sprint performance in short-distance swimming.
Similarly, strength training has a significant role in improving stroke length and stroke frequency. Low-volume, high-speed, and high-force strength training programs are particularly effective in transferring gains to swimming-specific mechanics. These improvements enhance stroke efficiency and power output, resulting in improved performance outcomes. In young swimmers, land-based strength and conditioning programs have demonstrated improvements in biomechanics, enabling swimmers to maintain higher speeds over 50 meters with minimal energy loss and more powerful strokes.
Collectively, these findings suggest that integrating plyometric and strength training into the training programs of young swimmers may yield beneficial effects on sprint biomechanics and overall performance. The current study aims to investigate the comparative effects of these two training modalities-plyometric and strength training-on 50-meter sprint performance and biomechanics in young swimmers. The results are expected to offer valuable insights into optimal conditioning strategies that support athletic development in competitive swimming.
Hypotheses:
Null Hypothesis (H₀): There is no significant difference in 50-meter sprint biomechanics, stroke frequency, or overall performance between young swimmers who undergo plyometric training in addition to swim training and those who undergo strength training in addition to swim training.
Alternative Hypothesis (H₁): There is a significant difference in 50-meter sprint biomechanics, stroke frequency, or overall performance between young swimmers who undergo plyometric training in addition to swim training and those who undergo strength training in addition to swim training.
Objectives:
To determine the chronic effects of plyometric training, in addition to regular swim training, on sprint biomechanics in young swimmers.
To evaluate the effects of strength training, in addition to regular swim training, on sprint biomechanics in young swimmers.
To compare developments in stroke frequency between the plyometric and strength training groups.
To examine the overall changes in 50-meter sprint performance in both training groups over the eight-week training period.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Plyometric Group | Experimental | Other: Standard Swimming Training, Other: Plyometric Training |
| Strength Group | Experimental | Other: Standard Swimming Training, Other: Strength Training |
Who may qualify
- Ages
- 10 to 17 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (0 listed)
Key exclusion criteria (1 listed)
- Presence of a health condition requiring regular medical check-ups (e.g., cardiovascular, respiratory, or musculoskeletal disorders).
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 |
|---|---|---|
| Standard Swimming TrainingWarm-Up: 1500 meters. Main set: 2000-3000 meters. Post-set: 1000 meters. Cool-Down: 200-400 meters. | Other | Plyometric Group, Strength Group |
| Plyometric TrainingThe plyometric training intervention will focus on developing explosive power and reaction speed through various jumping and landing exercises. Progressive overload principles will be applied, with progression achieved through increasing sets and intensity. Plyometric exercises will be performed twice a week, similar to the strength group, and will begin with 3 sets of 3 repetitions in the first week. As the body adapts to the exercises, one additional set will be added each week until the third week, which will conclude with 5 sets. In the fourth week, a deload will be incorporated with 2 sets to allow for recovery. After the deload week, intensity will increase, either by performing exercises faster or exerting maximum effort during each repetition. Upper-body exercises will include the medicine ball slam, sitting medicine ball side passes, and medicine ball chest passes, focusing on explosive upper body movements. Lower-body exercises will consist of standing long jumps, partner med | Other | Plyometric Group |
| Strength TrainingThe strength training intervention was designed to supplement standard swim training with a structured, full-body resistance program aimed at enhancing muscular strength and swimming biomechanics through progressive overload. Participants in the strength group engaged in two sessions per week for each major muscle group. Training commenced with 3 sets of 8 repetitions per exercise during the first week, with weekly increases in training volume until the third week (5 sets), followed by a deload week (3 sets) to promote recovery. The subsequent four weeks maintained a consistent 5-set structure, with progression achieved through incremental increases in load. Each session began with lower-body exercises to prioritize large muscle group activation and maximize session efficiency. Lower-body exercises included dumbbell goblet squats, step-ups, Romanian deadlifts, TRX hamstring curls, and calf raises, while upper-body work featured push-ups, TRX rows, dumbbell rows, and dumbbell shoulder p | Other | Strength Group |
Primary outcome
50m Sprint Time (Overall Performance)
Time frame: Through study completion, an average of 12 months
The 50m sprint time is used as a direct measure of swimming performance and is evaluated both in freestyle and in the swimmer's primary stroke. This test is conducted before and after the 8-week training intervention using a stopwatch and high-resolution video equipment. Time splits are also recorded for the 15m and 25m marks to assess acceleration and speed maintenance phases. This measure provides a clear indication of whether the intervention (strength or plyometric training) leads to improved sprint capacity in competitive youth swimmers.
Sprint biomechanics and stroke frequency
Time frame: Through study completion, an average of 12 months
Biomechanics are assessed through underwater and above-water video analysis to evaluate body alignment, stroke path, and coordination. Stroke frequency, calculated from the same footage by timing three full stroke cycles, reflects how quickly a swimmer completes strokes. Together, these measures reveal whether performance gains stem from technical improvements, faster turnover, or more effective propulsion.
2 secondary outcomes
Upper and Lower Body Muscle Strength
Time frame: Through study completion, an average of 12 months
Lower Body Explosive Power (Standing Long Jump Test)
Time frame: Through study completion, an average of 12 months
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 16 Jun 2026.
- Individual participant dataSharing planned: Yes
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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 Standard Swimming Training, Plyometric Training and Strength Training in people with Sport Performance and Biomechanics, run by Istinye University 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 0 inclusion and 1 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 16 Jun 2026. 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?
50m Sprint Time (Overall Performance) (time frame: Through study completion, an average of 12 months). 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 16 Jun 2026.