JudoRECOV-JUDONCT07586007
Recovery Strategies and Diurnal Variation in Adolescent Judokas
A study testing Sports Massage, Static Stretching and Passive Rest in people with Judo and Recovery of Function (G11.427.698.620), run by Inonu University at 1 site in Turkey (Türkiye).
Trial summary
The purpose of this study is to compare the effects of three different recovery strategies-sports massage (SM), static stretching (SS), and passive rest (PR)-on physiological and neuromuscular recovery in adolescent male judokas. Additionally, the study investigates the role of diurnal variation (morning vs. Read more about this study
- Who is it for?
- Ages 10 to 13 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Judo, Recovery of Function (G11.427.698.620), Athletic Performance
- What is being tested?
- Sports Massage, Static Stretching and Passive Rest
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 13 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 5 Mar 2024to 25 Aug 2024
- 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 13 years
- Men only
- Healthy volunteers accepted
- Child
Who may be able to join
- Active male judo athletes with at least orange belt
- Aged between 10-13 years
- Having at least 2 years of experience in judo training
- Active participation in national or international competitions
- Voluntary participation and signing the informed consent form
Who cannot join
- Any chronic disease or cardiovascular problems
- Upper or lower limb injuries within last 6 months that might affect performance
- Use of performance-enhancing supplements or medications during the study period
- Smoking or regular alcohol consumption
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Inonu University, Faculty of Sport Sciences
Malatya, Malatya, 44280
About this study
Official title: Comparative Effects of Sports Massage, Passive Rest, and Static Stretching on Physiological and Neuromuscular Recovery in Adolescent Judokas: The Role of Diurnal Variation
The purpose of this study is to compare the effects of three different recovery strategies-sports massage (SM), static stretching (SS), and passive rest (PR)-on physiological and neuromuscular recovery in adolescent male judokas. Additionally, the study investigates the role of diurnal variation (morning vs. evening sessions) on recovery performance.
Thirteen competitive adolescent judokas participated in a randomized crossover design. Recovery was assessed using physiological markers such as heart rate (HR) and blood lactate (La-) levels, as well as neuromuscular performance through countermovement jump (CMJ) and medicine ball throw tests. The findings aim to identify the most effective recovery modality for young athletes to optimize performance and prevent overtraining during intensive training or competition schedules.
Read the detailed description
This study employed a randomized, crossover experimental design to evaluate the efficacy of different recovery modalities in adolescent judokas. Participants underwent three distinct recovery protocols-Sports Massage (SM), Static Stretching (SS), and Passive Rest (PR)-following a standardized high-intensity exercise bout designed to induce fatigue.
Each recovery session lasted 15 minutes. To account for the influence of circadian rhythms, the protocols were conducted during both morning (08:00-10:00) and evening (17:00-19:00) sessions, with a minimum of 48 hours between sessions to ensure full recovery.
Physiological recovery was monitored through blood lactate concentration (La-) and heart rate (HR) measurements taken at baseline, immediately post-exercise, and at specific intervals during the recovery period. Neuromuscular performance was assessed through the Countermovement Jump (CMJ) test to measure lower-body power and the Medicine Ball Throw test for upper-body explosive strength. Statistical analysis was performed to compare the recovery rates and performance maintenance across the three modalities and two diurnal time points.
- Conditions
- Judo, Recovery of Function (G11.427.698.620), Athletic Performance, Muscle Fatigue, Adolescent
- Being tested
- Sports Massage, Static Stretching, Passive Rest
- Keywords
- judo, recovery, massage, stretching, circadian rhythm, adolescent athletes, blood lactate, countermovement jump
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sports MassageOther
Also called SM
A 10-minute sports massage protocol was applied to the major muscle groups of the lower and upper body, specifically those involved in judo movements, to facilitate recovery.
Static StretchingOther
Also called SS
A 10-minute static stretching session involving major muscle groups. Each stretch was held for a duration consistent with clinical standards to the point of mild discomfort
Passive RestOther
Also called PS
Participants rested quietly in a seated position for 10 minutes in a neutral environment, with no physical activity or external stimulation.
| Study group | Role | What they receive |
|---|---|---|
| Sport Massage (SM) | Experimental | Participants received a 10- minute sports massage focusing on the lower and upper body muscles Receives: Other: Sports Massage |
| Static Stretching (SS) | Experimental | Participants performed 10 minutes of static stretching exercises targeting major muscle groups. Receives: Other: Static Stretching |
| Passive Rest (PR) | Experimental | Participants rested quietly in a seated position for 10 minutes Receives: Other: Passive Rest |
What is being measured
The primary outcome is the main question the study is designed to answer.
blood lactate concentration
Lactate levels were measured to assess the physiological recovery of the participants after judo-specific tasks.
Measured: Measured at 4 time points: Baseline (before exercise), immediately after exercise, 5 minutes after recovery protocol, and 10 minutes after recovery protocol.
Secondary outcomes (3)
Countermovement jump height
Measured in centimeters to assess lower-body explosive power and neuromuscular fatigue
Measured: Baselibe (pre-post) and after 10-minute recovery period
Handgrip strength
measured in kilograms using a hand dynamometer for both dominant and non-dominant hands to assess upper-body strength
Measured: Baseline (pre-test) and after the 10-minute recovery period
Borg Rating of Perceived Exertion
Subjective assessment of effort using the 6-20 Borg scale
Measured: Immediately after the judo match
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 May 2026
- Study start5 Mar 2024
- Primary completion10 Apr 2024
- Study completion25 Aug 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for JudoStudies of the same condition, open and under way.
- More trials run by Inonu UniversityThe sponsor's other registered studies.
- 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
- Crossover
- Model description
- A randomized, crossover design where each participant completed three different recovery protocols (Sports massage, Static stretching and Passive rest) in a randomized order
- Masking
- None (open label)
- Enrolment
- 13 participants (actual)
Sponsor and investigators
- Lead sponsor
- Inonu University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Assoc. Prof. Dr. Özgür EKEN, Inonu University
- Investigators
- Özgür Eken, Associate Professor, Principal investigator, Inonu University, Faculty of Sport Sciences
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07586007
- Sponsor's protocol ID
- 2024/5204
- Acronym
- RECOV-JUDO
- Status last verified
- May 2026
- First submitted
- 8 May 2026
- Last updated
- 14 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Data contains sensitive information
Publications
Franchini E, Del Vecchio FB, Matsushigue KA, Artioli GG. Physiological profiles of elite judo athletes. Sports Med. 2011 Feb 1;41(2):147-66. doi: 10.2165/11538580-000000000-00000.
PubMed 21244106
Study at a glance
From the registry record, last updated by the sponsor on 14 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparative Effects of Sports Massage, Passive Rest, and Static Stretching on Physiological and Neuromuscular Recovery in Adolescent Judokas: The Role of Diurnal Variation
- ClinicalTrials.gov ID
- NCT07586007
- Acronym / sponsor ID
- RECOV-JUDO / 2024/5204
- Conditions
- Judo, Recovery of Function (G11.427.698.620), Athletic Performance, Muscle Fatigue, Adolescent
- Keywords
- judo, recovery, massage, stretching, circadian rhythm, adolescent athletes, blood lactate, countermovement jump
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 13 participants (actual)
- Lead sponsor
- Inonu UniversityUniversity, hospital or other
- Study start
- 5 Mar 2024 (actual)
- Primary completion
- 10 Apr 2024 (actual)
- Study completion
- 25 Aug 2024 (actual)
- First posted
- 14 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.
The purpose of this study is to compare the effects of three different recovery strategies-sports massage (SM), static stretching (SS), and passive rest (PR)-on physiological and neuromuscular recovery in adolescent male judokas. Additionally, the study investigates the role of diurnal variation (morning vs. evening sessions) on recovery performance.
Thirteen competitive adolescent judokas participated in a randomized crossover design. Recovery was assessed using physiological markers such as heart rate (HR) and blood lactate (La-) levels, as well as neuromuscular performance through countermovement jump (CMJ) and medicine ball throw tests. The findings aim to identify the most effective recovery modality for young athletes to optimize performance and prevent overtraining during intensive training or competition schedules.
Detailed description
This study employed a randomized, crossover experimental design to evaluate the efficacy of different recovery modalities in adolescent judokas. Participants underwent three distinct recovery protocols-Sports Massage (SM), Static Stretching (SS), and Passive Rest (PR)-following a standardized high-intensity exercise bout designed to induce fatigue.
Each recovery session lasted 15 minutes. To account for the influence of circadian rhythms, the protocols were conducted during both morning (08:00-10:00) and evening (17:00-19:00) sessions, with a minimum of 48 hours between sessions to ensure full recovery.
Physiological recovery was monitored through blood lactate concentration (La-) and heart rate (HR) measurements taken at baseline, immediately post-exercise, and at specific intervals during the recovery period. Neuromuscular performance was assessed through the Countermovement Jump (CMJ) test to measure lower-body power and the Medicine Ball Throw test for upper-body explosive strength. Statistical analysis was performed to compare the recovery rates and performance maintenance across the three modalities and two diurnal time points.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 3
- Model description
- A randomized, crossover design where each participant completed three different recovery protocols (Sports massage, Static stretching and Passive rest) in a randomized order
| Arm | Type | Receives |
|---|---|---|
| Sport Massage (SM) | Experimental | Other: Sports MassageParticipants received a 10- minute sports massage focusing on the lower and upper body muscles |
| Static Stretching (SS) | Experimental | Other: Static StretchingParticipants performed 10 minutes of static stretching exercises targeting major muscle groups. |
| Passive Rest (PR) | Experimental | Other: Passive RestParticipants rested quietly in a seated position for 10 minutes |
Who may qualify
- Ages
- 10 to 13 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (5 listed)
- Active male judo athletes with at least orange belt
- Aged between 10-13 years
- Having at least 2 years of experience in judo training
- Active participation in national or international competitions
- Voluntary participation and signing the informed consent form
Key exclusion criteria (4 listed)
- Any chronic disease or cardiovascular problems
- Upper or lower limb injuries within last 6 months that might affect performance
- Use of performance-enhancing supplements or medications during the study period
- Smoking or regular alcohol consumption
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 |
|---|---|---|
| Sports MassageAlso: SMA 10-minute sports massage protocol was applied to the major muscle groups of the lower and upper body, specifically those involved in judo movements, to facilitate recovery. | Other | Sport Massage (SM) |
| Static StretchingAlso: SSA 10-minute static stretching session involving major muscle groups. Each stretch was held for a duration consistent with clinical standards to the point of mild discomfort | Other | Static Stretching (SS) |
| Passive RestAlso: PSParticipants rested quietly in a seated position for 10 minutes in a neutral environment, with no physical activity or external stimulation. | Other | Passive Rest (PR) |
Primary outcome
blood lactate concentration
Time frame: Measured at 4 time points: Baseline (before exercise), immediately after exercise, 5 minutes after recovery protocol, and 10 minutes after recovery protocol.
Lactate levels were measured to assess the physiological recovery of the participants after judo-specific tasks.
3 secondary outcomes
Countermovement jump height
Time frame: Baselibe (pre-post) and after 10-minute recovery period
Handgrip strength
Time frame: Baseline (pre-test) and after the 10-minute recovery period
Borg Rating of Perceived Exertion
Time frame: Immediately after the judo match
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 14 May 2026.
- Background: PubMed 21244106Franchini E, Del Vecchio FB, Matsushigue KA, Artioli GG. Physiological profiles of elite judo athletes. Sports Med. 2011 Feb 1;41(2):147-66. doi: 10.2165/11538580-000000000-00000.
- Individual participant dataSharing planned: No. Data contains sensitive information
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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.
Özgür Eken, Associate Professor principal investigator
Inonu University, Faculty of Sport Sciences
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Sports Massage, Static Stretching and Passive Rest in people with Judo and Recovery of Function (G11.427.698.620), run by Inonu 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 5 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 14 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 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?
blood lactate concentration (time frame: Measured at 4 time points: Baseline (before exercise), immediately after exercise, 5 minutes after recovery protocol, and 10 minutes after recovery protocol.). 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 NCT07586007, which also lists 1 linked publication.
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 14 May 2026.