HealthyNCT07589231
Effects of Carbon Fiber Insoles on CMJ and Sprint Performance
A study testing VKTRY Insoles in people with Healthy and Sportsman, run by Benjamín Cuenca Valero at 1 site in Spain.
Trial summary
This study evaluates the effects of VKTRY carbon fiber insoles on vertical jump and sprint performance in moderately active men. Participants will perform tests with and without insoles, assessing both objective performance and subjective perception using a Likert-type scale. Read more about this study
- Who is it for?
- Ages 18 to 30 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy, Sportsman, Prevention
- What is being tested?
- VKTRY Insoles
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 38 participants
- Where
- 1 siteSpain
- Study dates
- 30 Oct 2025to 30 Jun 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 18 to 30 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Men aged 18-30 years
- Moderate physical activity (2-4 times/week)
- No injuries in the last 6 months
Who cannot join
- Use of orthoses or podiatric pathologies
- Neurological or cardiovascular disease
- Refusal to sign informed consent
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Spain1 site, 1 recruiting
- Recruiting
Universidad Católica de Valencia
Valencia, Valencia, 46001
Benjamín Cuenca Valero, +34636695885, benjamin.cuenca@ucv.es
David Cárcel Martínez, +34601315992, dacarmar@mail.ucv.es
About this study
This study evaluates the effects of VKTRY carbon fiber insoles on vertical jump and sprint performance in moderately active men. Participants will perform tests with and without insoles, assessing both objective performance and subjective perception using a Likert-type scale.
Read the detailed description
This study aims to analyze the effects of using carbon fiber insoles (VKTRY) on physical performance in explosive tasks, specifically vertical jump (countermovement jump - CMJ) and sprinting, in moderately active young adults. The increasing use of ergonomic technologies in sports has sparked interest in devices such as these insoles, which promise to increase mechanical efficiency and propulsion during athletic movements, thanks to the rigidity and energy return capacity of carbon fiber.
Study Design: The study design is descriptive, observational, cross-sectional, and comparative. The sample will consist of men aged 18 to 30 years with regular sports participation (2-4 days per week). Each participant will perform vertical jump and sprint tests under two conditions: with and without carbon fiber insoles.
Measured Variables: The variables evaluated will include jump height (cm), flight time (ms), sprint time (s), maximum speed (km/h), and subjective perception via an adapted Likert-type survey. Objective evaluation will be conducted using the validated My Jump Lab application.
Expected Implications: The study seeks to determine whether these insoles significantly influence immediate sports performance, both in terms of physical parameters and athletes' perception. Results could have practical implications for training, injury prevention, and the use of ergonomic aids in amateur athletes.
- Conditions
- Healthy, Sportsman, Prevention, Performance, Healthy Adult Man, Sports Performance
- Being tested
- VKTRY Insoles
- Keywords
- sprint, insoles, carbon fiber insoles, vertical jump, biomechanics, sports performance, my jump lab
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
VKTRY InsolesDevice
Carbon fiber insoles (VKTRY)
| Study group | Role | What they receive |
|---|---|---|
| With insoles | Experimental | Use of VKTRY insoles during CMJ and sprint Receives: Device: VKTRY Insoles |
| Without insoles | No intervention | CMJ and sprint without VKTRY insoles |
What is being measured
The primary outcome is the main question the study is designed to answer.
Jump height difference (CMJ)
Measurement with the My Jump Lab app
Measured: Day 1
Secondary outcomes (4)
Flight time (ms)
Measured: Day 1
Sprint time (s)
Measured: Day 1
Maximum speed (km/h)
Measured: Day 1
Subjective assessment on Likert scale
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 May 2026
- Study start30 Oct 2025
- Primary completion15 Jun 2026 (estimated)
- Study completion30 Jun 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for HealthyStudies 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
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Model description
- Quasi-experimental / repeated measures design, with no random group assignment, but comparing the same subjects under two conditions.
- Masking
- None (open label)
- Enrolment
- 38 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Benjamín Cuenca Valero
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Benjamín Cuenca Valero, Fundación Universidad Católica de Valencia San Vicente Mártir
- Investigators
- Benjamín Cuenca Valero, Study director, Universidad Católica de Valencia (UCV) Facultad de Medicina y Ciencias de la Salud. C/ Quevedo, 2 - 46001 ValenciaDavid Cárcel Martínez, Principal investigator, Universidad Católica de Valencia (UCV) Facultad de Medicina y Ciencias de la Salud. C/ Quevedo, 2 - 46001 Valencia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07589231
- Sponsor's protocol ID
- UCV/2024-2025/052
- Status last verified
- May 2026
- First submitted
- 9 Dec 2025
- Last updated
- 15 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: All underlying IPDs result in a publication
Publications
Dierickx EE, Butler CR, Huggins RA, Zuk EF, Mason LC, Distefano LJ, Casa DJ. Carbon Fiber Insoles Enhance Perception of Performance Despite Variable Objective Outcomes: Specific to the Moderately Active Individual. Int J Exerc Sci. 2023 Jul 1;16(4):885-897. doi: 10.70252/EGDU7320. eCollection 2023.
PubMed 37637238Tokutake G, Kuramochi R, Murata Y, Enoki S, Koto Y, Shimizu T. The Risk Factors of Hamstring Strain Injury Induced by High-Speed Running. J Sports Sci Med. 2018 Nov 20;17(4):650-655. eCollection 2018 Dec.
PubMed 30479534
Study at a glance
From the registry record, last updated by the sponsor on 15 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Carbon Fiber Insoles on CMJ and Sprint Performance
- ClinicalTrials.gov ID
- NCT07589231
- Acronym / sponsor ID
- UCV/2024-2025/052
- Conditions
- Healthy, Sportsman, Prevention, Performance, Healthy Adult Man, Sports Performance
- Keywords
- sprint, insoles, carbon fiber insoles, vertical jump, biomechanics, sports performance, my jump lab
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 38 participants (estimated)
- Lead sponsor
- Benjamín Cuenca ValeroUniversity, hospital or other
- Study start
- 30 Oct 2025 (actual)
- Primary completion
- 15 Jun 2026 (estimated)
- Study completion
- 30 Jun 2026 (estimated)
- First posted
- 15 May 2026 (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.
This study evaluates the effects of VKTRY carbon fiber insoles on vertical jump and sprint performance in moderately active men. Participants will perform tests with and without insoles, assessing both objective performance and subjective perception using a Likert-type scale.
Detailed description
This study aims to analyze the effects of using carbon fiber insoles (VKTRY) on physical performance in explosive tasks, specifically vertical jump (countermovement jump - CMJ) and sprinting, in moderately active young adults. The increasing use of ergonomic technologies in sports has sparked interest in devices such as these insoles, which promise to increase mechanical efficiency and propulsion during athletic movements, thanks to the rigidity and energy return capacity of carbon fiber.
Study Design: The study design is descriptive, observational, cross-sectional, and comparative. The sample will consist of men aged 18 to 30 years with regular sports participation (2-4 days per week). Each participant will perform vertical jump and sprint tests under two conditions: with and without carbon fiber insoles.
Measured Variables: The variables evaluated will include jump height (cm), flight time (ms), sprint time (s), maximum speed (km/h), and subjective perception via an adapted Likert-type survey. Objective evaluation will be conducted using the validated My Jump Lab application.
Expected Implications: The study seeks to determine whether these insoles significantly influence immediate sports performance, both in terms of physical parameters and athletes' perception. Results could have practical implications for training, injury prevention, and the use of ergonomic aids in amateur athletes.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Quasi-experimental / repeated measures design, with no random group assignment, but comparing the same subjects under two conditions.
| Arm | Type | Receives |
|---|---|---|
| With insoles | Experimental | Device: VKTRY InsolesUse of VKTRY insoles during CMJ and sprint |
| Without insoles | No intervention | –CMJ and sprint without VKTRY insoles |
Who may qualify
- Ages
- 18 to 30 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Men aged 18-30 years
- Moderate physical activity (2-4 times/week)
- No injuries in the last 6 months
Key exclusion criteria (3 listed)
- Use of orthoses or podiatric pathologies
- Neurological or cardiovascular disease
- Refusal to sign informed 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 |
|---|---|---|
| VKTRY InsolesCarbon fiber insoles (VKTRY) | Device | With insoles |
Primary outcome
Jump height difference (CMJ)
Time frame: Day 1
Measurement with the My Jump Lab app
4 secondary outcomes
Flight time (ms)
Time frame: Day 1
Sprint time (s)
Time frame: Day 1
Maximum speed (km/h)
Time frame: Day 1
Subjective assessment on Likert scale
Time frame: Day 1
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 May 2026.
- Results publication: PubMed 37637238Dierickx EE, Butler CR, Huggins RA, Zuk EF, Mason LC, Distefano LJ, Casa DJ. Carbon Fiber Insoles Enhance Perception of Performance Despite Variable Objective Outcomes: Specific to the Moderately Active Individual. Int J Exerc Sci. 2023 Jul 1;16(4):885-897. doi: 10.70252/EGDU7320. eCollection 2023.
- Results publication: PubMed 30479534Tokutake G, Kuramochi R, Murata Y, Enoki S, Koto Y, Shimizu T. The Risk Factors of Hamstring Strain Injury Induced by High-Speed Running. J Sports Sci Med. 2018 Nov 20;17(4):650-655. eCollection 2018 Dec.
- Página del producto VKTRY:Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. All underlying IPDs result in a publication
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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.
Benjamín Cuenca Valero study director
Universidad Católica de Valencia (UCV) Facultad de Medicina y Ciencias de la Salud. C/ Quevedo, 2 - 46001 Valencia
David Cárcel Martínez principal investigator
Universidad Católica de Valencia (UCV) Facultad de Medicina y Ciencias de la Salud. C/ Quevedo, 2 - 46001 Valencia
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing VKTRY Insoles in people with Healthy and Sportsman, run by Benjamín Cuenca Valero at 1 site in Spain.
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 3 inclusion and 3 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: looking for participants now, as of the sponsor's last update on 15 May 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 Spain. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Benjamín Cuenca Valero (+34636695885, benjamin.cuenca@ucv.es), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Jump height difference (CMJ) (time frame: Day 1). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07589231, which also lists 2 linked publications.
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 15 May 2026.