Exercise RecoveryNCT06938984
Human TECAR on Exercise Preconditioning and Post-exercise Recovery
A study testing Capacitive mode before, Resistive mode before and Capacitive mode after in people with Exercise Recovery, run by University of Nove de Julho at 1 site in Brazil.
Trial summary
TECAR therapy (Transfer of Energy Capacitive and Resistive) is a type of diathermy that uses radiant energy to generate endogenous heat. However, to the date there are no studies investigating the effects of TECAR therapy on exercise preconditioning and post-exercise recovery in humans. Read more about this study
- Who is it for?
- Ages 18 to 35 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Exercise Recovery
- What is being tested?
- Capacitive mode before, Resistive mode before and Capacitive mode after
- Type of treatment
- Medical device
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 50 participants
- Where
- 1 siteBrazil
- Study dates
- 23 Apr 2025to 30 May 2025
- 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 35 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Physically active male participants;
- Do not present a history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study;
- Are not using pharmacological agents;
- Voluntarily commit to participate in all stages of the study.
Who cannot join
- Present musculoskeletal or joint injuries during data collection;
- Present history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Brazil1 site, 1 recruiting
- Recruiting
Laboratory of Phototherapy and Innovative Technologies in Health
São Paulo, São Paulo, 01504-001
Heliodora Casalechi, Ph.D., M.Sc., PT., +55 11 3385 9134, ernesto.leal.junior@gmail.com
Pinto Leal Junior, Ph.D., M.Sc., PT.
About this study
TECAR therapy (Transfer of Energy Capacitive and Resistive) is a type of diathermy that uses radiant energy to generate endogenous heat. However, to the date there are no studies investigating the effects of TECAR therapy on exercise preconditioning and post-exercise recovery in humans. Therefore, the aim of this project is to assess the effects of different treatment protocols of TECAR therapy on. exercise preconditioning and post-exercise recovery in humans
Read the detailed description
Fifty male healthy volunteers will be enrolled in a randomized, double-blind (participants and assessors), controlled trial. Volunteers will be allocated in 5 groups of 10 participants each: 1 - Sham-control (fake intervention - massaging with one of the Human TECAR probes with the device turned off before or after the eccentric exercise protocol depending on randomization); 2 - Capacitive mode before exercise (preconditioning); 3 - Resistive mode before exercise (preconditioning); 4 - Capacitive mode after exercise (recovery); and 5 - Resistive mode after exercise (recovery). The treatment target will be the knee extensors muscles (quadriceps).
A standardized knee extension eccentric exercise protocol performed in the isokinetic dynamometer (Biodex System 4) will be used in order to exercise induce skeletal muscle fatigue and damage.
Volunteers will be treated with Human TECAR in a single treatment session, with 10 minutes length, that will be carried out immediately before or immediately after the exercise protocol according to the randomization.
- Conditions
- Exercise Recovery
- Being tested
- Sham Comparator, Capacitive mode before, Resistive mode before, Capacitive mode after, Resistive mode after
- Keywords
- TECAR therapy, Post-exercise recovery, Preconditioning
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sham ComparatorDevice
Massaging the quadriceps with one of the Human TECAR probes with the device turned off for 10 minutes
Capacitive mode beforeDevice
Capacitive mode applied to the quadriceps for 10 minutes
Resistive mode beforeDevice
Resistive mode applied to the quadriceps for 10 minutes
Capacitive mode afterDevice
Capacitive mode applied to the quadriceps for 10 minutes
Resistive mode afterDevice
Resistive mode applied to the quadriceps for 10 minutes
| Study group | Role | What they receive |
|---|---|---|
| Sham-control | Sham comparator | Fake intervention - massaging the quadriceps with one of the Human TECAR probes with the device turned off for 10 minutes, before or after the eccentric exercise protocol depending on randomization Receives: Device: Sham Comparator |
| Capacitive mode before exercise | Experimental | Capacitive mode applied to the quadriceps for 10 minutes, before the eccentric exercise (preconditioning) Receives: Device: Capacitive mode before |
| Resistive mode before exercise | Experimental | Resistive mode applied to the quadriceps for 10 minutes, before the eccentric exercise (preconditioning) Receives: Device: Resistive mode before |
| Capacitive mode after exercise (recovery) | Experimental | Capacitive mode applied to the quadriceps for 10 minutes, after the eccentric exercise (recovery) Receives: Device: Capacitive mode after |
| Resistive mode after exercise (recovery) | Experimental | Resistive mode applied to the quadriceps for 10 minutes, after the eccentric exercise (recovery) Receives: Device: Resistive mode after |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in muscle strength
The muscle strength will be measured through isokinetic dynamometry
Measured: 48 hours after eccentric exercise
Secondary outcomes (8)
Change in muscle strength
The muscle strength will be measured through isokinetic dynamometry
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Change in CK activity
The CK activity will be analyzed from the blood samples collected from the participants through biochemical analysis and using specific reagent kits.
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Delayed onset muscle soreness - DOMS
DOMS will be assessed through the VAS scale
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Temperature
Thigh temperature will be assessed through Thermography using the WellVu camera.
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Muscular oxygen saturation index
It will be measured using near-infrared spectroscopy (NIRS)
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Muscular blood flow
It will be measured analyzing total hemoglobin in muscle tissue using near-infrared spectroscopy (NIRS)
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Muscular effort perception
The CR-100 Effort Perception Scale will be used
Measured: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Participant satisfaction with the treatment
The Likert scale will be used
Measured: 96 hours after the eccentric exercise protocol
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Apr 2025
- Study start23 Apr 2025
- Primary completion30 May 2025 (estimated)
- Study completion30 May 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Exercise RecoveryStudies 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
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 50 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Nove de Julho
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ernesto Cesar Pinto Leal Junior, University of Nove de Julho
- Investigators
- Ernesto Cesar Pinto Leal Junior, Ph.D., M.Sc., PT., Principal investigator, Nove de Julho University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06938984
- Sponsor's protocol ID
- 7.083.912
- Status last verified
- May 2025
- First submitted
- 31 Mar 2025
- Last updated
- 11 May 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- Yes: Data will be shared upon request addressed to the principal investigator.
Study at a glance
From the registry record, last updated by the sponsor on 11 May 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Human TECAR on Exercise Preconditioning and Post-exercise Recovery
- ClinicalTrials.gov ID
- NCT06938984
- Acronym / sponsor ID
- 7.083.912
- Conditions
- Exercise Recovery
- Keywords
- TECAR therapy, Post-exercise recovery, Preconditioning
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 50 participants (estimated)
- Lead sponsor
- University of Nove de JulhoUniversity, hospital or other
- Study start
- 23 Apr 2025 (actual)
- Primary completion
- 30 May 2025 (estimated)
- Study completion
- 30 May 2025 (estimated)
- First posted
- 22 Apr 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.
TECAR therapy (Transfer of Energy Capacitive and Resistive) is a type of diathermy that uses radiant energy to generate endogenous heat. However, to the date there are no studies investigating the effects of TECAR therapy on exercise preconditioning and post-exercise recovery in humans. Therefore, the aim of this project is to assess the effects of different treatment protocols of TECAR therapy on. exercise preconditioning and post-exercise recovery in humans
Detailed description
Fifty male healthy volunteers will be enrolled in a randomized, double-blind (participants and assessors), controlled trial. Volunteers will be allocated in 5 groups of 10 participants each: 1 - Sham-control (fake intervention - massaging with one of the Human TECAR probes with the device turned off before or after the eccentric exercise protocol depending on randomization); 2 - Capacitive mode before exercise (preconditioning); 3 - Resistive mode before exercise (preconditioning); 4 - Capacitive mode after exercise (recovery); and 5 - Resistive mode after exercise (recovery). The treatment target will be the knee extensors muscles (quadriceps).
A standardized knee extension eccentric exercise protocol performed in the isokinetic dynamometer (Biodex System 4) will be used in order to exercise induce skeletal muscle fatigue and damage.
Volunteers will be treated with Human TECAR in a single treatment session, with 10 minutes length, that will be carried out immediately before or immediately after the exercise protocol according to the randomization.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| Sham-control | Sham comparator | Device: Sham ComparatorFake intervention - massaging the quadriceps with one of the Human TECAR probes with the device turned off for 10 minutes, before or after the eccentric exercise protocol depending on randomization |
| Capacitive mode before exercise | Experimental | Device: Capacitive mode beforeCapacitive mode applied to the quadriceps for 10 minutes, before the eccentric exercise (preconditioning) |
| Resistive mode before exercise | Experimental | Device: Resistive mode beforeResistive mode applied to the quadriceps for 10 minutes, before the eccentric exercise (preconditioning) |
| Capacitive mode after exercise (recovery) | Experimental | Device: Capacitive mode afterCapacitive mode applied to the quadriceps for 10 minutes, after the eccentric exercise (recovery) |
| Resistive mode after exercise (recovery) | Experimental | Device: Resistive mode afterResistive mode applied to the quadriceps for 10 minutes, after the eccentric exercise (recovery) |
Who may qualify
- Ages
- 18 to 35 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Physically active male participants;
- Do not present a history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study;
- Are not using pharmacological agents;
- Voluntarily commit to participate in all stages of the study.
Key exclusion criteria (2 listed)
- Present musculoskeletal or joint injuries during data collection;
- Present history of musculoskeletal injury in the regions of the hips, knees and calves in the month preceding the study.
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 |
|---|---|---|
| Sham ComparatorMassaging the quadriceps with one of the Human TECAR probes with the device turned off for 10 minutes | Device | Sham-control |
| Capacitive mode beforeCapacitive mode applied to the quadriceps for 10 minutes | Device | Capacitive mode before exercise |
| Resistive mode beforeResistive mode applied to the quadriceps for 10 minutes | Device | Resistive mode before exercise |
| Capacitive mode afterCapacitive mode applied to the quadriceps for 10 minutes | Device | Capacitive mode after exercise (recovery) |
| Resistive mode afterResistive mode applied to the quadriceps for 10 minutes | Device | Resistive mode after exercise (recovery) |
Primary outcome
Change in muscle strength
Time frame: 48 hours after eccentric exercise
The muscle strength will be measured through isokinetic dynamometry
8 secondary outcomes
Change in muscle strength
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Change in CK activity
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Delayed onset muscle soreness - DOMS
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Temperature
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Muscular oxygen saturation index
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Muscular blood flow
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Muscular effort perception
Time frame: 5 minutes after the treatment, 5 minutes, 1 hour, 24 hours, 72 hours, and 96 hours after the eccentric exercise protocol
Participant satisfaction with the treatment
Time frame: 96 hours after the eccentric exercise protocol
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 11 May 2025.
- Individual participant dataSharing planned: Yes. Data will be shared upon request addressed to the principal investigator.
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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.
Laboratory of Phototherapy and Innovative Technologies in Health
São Paulo, Brazil
Ernesto Cesar Pinto Leal Junior, Ph.D., M.Sc., PT. principal investigator
Nove de Julho University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Capacitive mode before, Resistive mode before and Capacitive mode after in people with Exercise Recovery, run by University of Nove de Julho at 1 site in Brazil.
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 2 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 11 May 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 Brazil. 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. Some participants in this study may receive a placebo. 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?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in muscle strength (time frame: 48 hours after eccentric exercise). 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 11 May 2025.