Athletic PerformanceBOX-HIITNCT07571070
High-Intensity Intermittent Training and Sport-Specific Performance in Youth Amateur Boxers
A study testing Nine-session high-intensity intermittent boxing training in people with Athletic Performance and Exercise Training, run by Federal University of Vicosa at 1 site in Colombia.
Trial summary
Boxing is an intermittent combat sport that requires repeated high-intensity actions, sustained punching output, and rapid post-exercise recovery. This single-arm field-based study will examine the effects of a nine-session high-intensity intermittent training program on sport-specific punching output, heart-rate… Read more about this study
- Who is it for?
- Ages 18 years and older, men onlyHealthy volunteers can take part
- Conditions the study is for
- Athletic Performance, Exercise Training, Physical Fitness
- What is being tested?
- Nine-session high-intensity intermittent boxing training
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 9 participants
- Where
- 1 siteColombia
- Study dates
- 1 Feb 2026to 1 Apr 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 18 years and older
- Men only
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Youth amateur boxers regularly enrolled in a supervised boxing training program.
- Age within the predefined youth/adolescent range established in the protocol.
- Regular attendance to boxing training before the beginning of the intervention.
- Ability to complete the standardized boxing-specific test at baseline and post-intervention.
- Medical, coaching, or institutional clearance to participate in regular boxing training.
- Written informed consent from a parent or legal guardian.
- Written or verbal assent from the athlete, according to institutional ethics requirements.
Who cannot join
- Current musculoskeletal injury or pain limiting boxing training or testing.
- Known cardiovascular, respiratory, neurological, or metabolic condition contraindicating high-intensity exercise.
- Use of medication or substances that may substantially alter heart-rate response, unless medically authorized and documented.
- Inability to complete baseline or post-intervention testing.
- Participation in another structured training intervention likely to interfere with the study outcomes.
- Withdrawal of parental consent or participant assent at any point.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effects of Nine Sessions of High-Intensity Intermittent Training on Punching Output, Heart-Rate Recovery, and Accelerometer-Derived Responses in Youth Amateur Boxers: A Single-Arm Field-Based Study
Boxing is an intermittent combat sport that requires repeated high-intensity actions, sustained punching output, and rapid post-exercise recovery. This single-arm field-based study will examine the effects of a nine-session high-intensity intermittent training program on sport-specific punching output, heart-rate responses, and accelerometer-derived movement responses in youth amateur boxers. Participants will complete a standardized boxing-specific test before and after the intervention. The primary outcome will be the total number of punches completed during the test. Secondary outcomes will include round-by-round punching output, heart rate immediately after the test, heart rate one minute after the test, one-minute heart-rate recovery, and the accelerometer-derived sum of absolute acceleration peaks recorded during each round. The study is designed to provide ecologically valid evidence on feasible monitoring strategies for training adaptation in amateur boxing.
Read the detailed description
This study is a field-based, single-arm pre-post intervention conducted in youth amateur boxers. The intervention consists of nine sessions of high-intensity intermittent training integrated into the athletes' regular boxing preparation. The training approach is designed to reflect the intermittent physiological and technical demands of boxing, emphasizing repeated high-intensity efforts, incomplete recovery, and sport-specific execution under fatigue.
Before and after the intervention, participants will perform a standardized boxing-specific test composed of repeated 30-second punching rounds separated by recovery periods. Punching output will be recorded as the number of completed punches per round and as the total number of punches across the test. Heart rate will be measured immediately after the test and again one minute after completion to characterize acute cardiovascular response and early recovery. In addition, smartphone accelerometry using Phyphox will be used as an exploratory secondary monitoring strategy. Accelerometer data will be processed using the absolute acceleration signal, and local acceleration peaks will be identified within each active round using a predefined operational criterion.
The primary purpose of the study is to evaluate whether a short high-intensity intermittent boxing-specific training block is associated with changes in sport-specific punching output. Secondary objectives are to describe changes in post-test heart-rate response, one-minute heart-rate recovery, and accelerometer-derived indicators of movement intensity. Given the applied training context and the expected small sample, the study will be interpreted as exploratory and field-based rather than as a definitive efficacy trial.
- Conditions
- Athletic Performance, Exercise Training, Physical Fitness
- Being tested
- Nine-session high-intensity intermittent boxing training
- Keywords
- Youth athletes, Amateur boxing, High-intensity intermittent training, Punching output, Heart rate recovery
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Nine-session high-intensity intermittent boxing trainingBehavioural
The intervention consists of nine supervised training sessions based on high-intensity intermittent boxing-specific exercises. Sessions will be conducted in a real-world amateur boxing training environment and will involve repeated high-intensity efforts, recovery intervals, and technical actions representative of boxing demands. The intervention is not pharmacological and does not involve a medical device.
| Study group | Role | What they receive |
|---|---|---|
| Experimental: High-Intensity Intermittent Boxing Training | Experimental | Participants will complete a nine-session high-intensity intermittent boxing training intervention integrated into their regular training context. The intervention will include repeated high-intensity boxing-specific efforts with structured recovery periods, aiming to stimulate sport-specific punching output and post-exercise recovery capacity. Receives: Behavioral: Nine-session high-intensity intermittent boxing training |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in total punching output during the boxing-specific test
Total number of punches completed across all active rounds of the standardized boxing-specific test. Punches will be counted during each active round and summed to obtain total punching output.
Measured: Baseline and post-intervention, within 48-72 hours after the ninth training session
Secondary outcomes (6)
Change in round-by-round punching output
Number of punches completed during each active round of the standardized boxing-specific test. This outcome will be used to describe within-test performance maintenance or decline across rounds.
Measured: Baseline and post-intervention, within 48-72 hours after the ninth training session
Change in heart rate immediately after the boxing-specific test
Heart rate recorded immediately after completion of the standardized boxing-specific test. This outcome will be used to characterize the acute cardiovascular response to the test.
Measured: Immediately after the test at baseline and immediately after the test post-intervention
Change in heart rate one minute after the boxing-specific test
Heart rate recorded one minute after completion of the standardized boxing-specific test. This outcome will be used to characterize early post-exercise recovery.
Measured: One minute after the test at baseline and one minute after the test post-intervention
Change in one-minute heart-rate recovery
Heart-rate recovery will be calculated as the difference between heart rate immediately after the test and heart rate one minute after the test. Higher values indicate a larger reduction in heart rate during the first minute of recovery.
Measured: Baseline and post-intervention, within 48-72 hours after the ninth training session
Change in accelerometer-derived sum of absolute acceleration peaks per round
Exploratory accelerometer-derived outcome calculated from the Phyphox absolute acceleration signal during each active round. Local peaks will be identified in the "Absolute acceleration (m/s²)" column using a predefined operational criterion: local maximum ≥4 m/s², with a minimum separation of 0.20 seconds between peaks. The sum of detected peak values will be calculated for each round. Rest intervals will be excluded from analysis.
Measured: Baseline and post-intervention, within 48-72 hours after the ninth training session
Change in total accelerometer-derived sum of absolute acceleration peaks
Total accelerometer-derived response calculated as the sum of absolute acceleration peak values across all active rounds of the standardized boxing-specific test. This variable will be treated as an exploratory secondary indicator of movement intensity and external mechanical response during the test.
Measured: Baseline and post-intervention, within 48-72 hours after the ninth training session
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 May 2026
- Study start1 Feb 2026
- Primary completion8 Feb 2026
- Study completion1 Apr 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Athletic 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
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- All participants will receive the same nine-session high-intensity intermittent boxing training intervention. Outcomes will be compared within participants from baseline to post-intervention.
- Masking
- None (open label)
- Enrolment
- 9 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
- NCT07571070
- Sponsor's protocol ID
- TdeA-BOX-HIIT-2026
- Acronym
- BOX-HIIT
- Status last verified
- Apr 2026
- First submitted
- 30 Apr 2026
- Last updated
- 6 May 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: Individual participant data will not be shared because the study involves minors and a small sport-specific sample, which may increase the risk of indirect identification. Results will be reported only in aggregate form. Non-identifiable summary data or analytic procedures may be made available upon reasonable request, subject to institutional ethics approval and participant confidentiality safeguards.
Publications
Rodrigues Maciel A, Herling Lambertucci R, Madureira Barbosa F, Fernandes Guerra RL. Proposal and reproducibility of a specific test for amateur boxing. Ido Movement for Culture. Journal of Martial Arts Anthropology. 2023;23(4):8-15. doi:10.14589/ido.23.4.2.
Ghosh AK, Goswami A, Ahuja A. Heart rate & blood lactate response in amateur competitive boxing. Indian J Med Res. 1995 Oct;102:179-83.
PubMed 8543363Franchini E, Cormack S, Takito MY. Effects of High-Intensity Interval Training on Olympic Combat Sports Athletes' Performance and Physiological Adaptation: A Systematic Review. J Strength Cond Res. 2019 Jan;33(1):242-252. doi: 10.1519/JSC.0000000000002957.
PubMed 30431531Vasconcelos BB, Protzen GV, Galliano LM, Kirk C, Del Vecchio FB. Effects of High-Intensity Interval Training in Combat Sports: A Systematic Review with Meta-Analysis. J Strength Cond Res. 2020 Mar;34(3):888-900. doi: 10.1519/JSC.0000000000003255.
PubMed 31904713
Study at a glance
From the registry record, last updated by the sponsor on 6 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Nine Sessions of High-Intensity Intermittent Training on Punching Output, Heart-Rate Recovery, and Accelerometer-Derived Responses in Youth Amateur Boxers: A Single-Arm Field-Based Study
- ClinicalTrials.gov ID
- NCT07571070
- Acronym / sponsor ID
- BOX-HIIT / TdeA-BOX-HIIT-2026
- Conditions
- Athletic Performance, Exercise Training, Physical Fitness
- Keywords
- Youth athletes, Amateur boxing, High-intensity intermittent training, Punching output, Heart rate recovery
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 9 participants (actual)
- Lead sponsor
- Federal University of VicosaUniversity, hospital or other
- Study start
- 1 Feb 2026 (actual)
- Primary completion
- 8 Feb 2026 (actual)
- Study completion
- 1 Apr 2026 (actual)
- First posted
- 6 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.
Boxing is an intermittent combat sport that requires repeated high-intensity actions, sustained punching output, and rapid post-exercise recovery. This single-arm field-based study will examine the effects of a nine-session high-intensity intermittent training program on sport-specific punching output, heart-rate responses, and accelerometer-derived movement responses in youth amateur boxers. Participants will complete a standardized boxing-specific test before and after the intervention. The primary outcome will be the total number of punches completed during the test. Secondary outcomes will include round-by-round punching output, heart rate immediately after the test, heart rate one minute after the test, one-minute heart-rate recovery, and the accelerometer-derived sum of absolute acceleration peaks recorded during each round. The study is designed to provide ecologically valid evidence on feasible monitoring strategies for training adaptation in amateur boxing.
Detailed description
This study is a field-based, single-arm pre-post intervention conducted in youth amateur boxers. The intervention consists of nine sessions of high-intensity intermittent training integrated into the athletes' regular boxing preparation. The training approach is designed to reflect the intermittent physiological and technical demands of boxing, emphasizing repeated high-intensity efforts, incomplete recovery, and sport-specific execution under fatigue.
Before and after the intervention, participants will perform a standardized boxing-specific test composed of repeated 30-second punching rounds separated by recovery periods. Punching output will be recorded as the number of completed punches per round and as the total number of punches across the test. Heart rate will be measured immediately after the test and again one minute after completion to characterize acute cardiovascular response and early recovery. In addition, smartphone accelerometry using Phyphox will be used as an exploratory secondary monitoring strategy. Accelerometer data will be processed using the absolute acceleration signal, and local acceleration peaks will be identified within each active round using a predefined operational criterion.
The primary purpose of the study is to evaluate whether a short high-intensity intermittent boxing-specific training block is associated with changes in sport-specific punching output. Secondary objectives are to describe changes in post-test heart-rate response, one-minute heart-rate recovery, and accelerometer-derived indicators of movement intensity. Given the applied training context and the expected small sample, the study will be interpreted as exploratory and field-based rather than as a definitive efficacy trial.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- All participants will receive the same nine-session high-intensity intermittent boxing training intervention. Outcomes will be compared within participants from baseline to post-intervention.
| Arm | Type | Receives |
|---|---|---|
| Experimental: High-Intensity Intermittent Boxing Training | Experimental | Behavioral: Nine-session high-intensity intermittent boxing trainingParticipants will complete a nine-session high-intensity intermittent boxing training intervention integrated into their regular training context. The intervention will include repeated high-intensity boxing-specific efforts with structured recovery periods, aiming to stimulate sport-specific punching output and post-exercise recovery capacity. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Youth amateur boxers regularly enrolled in a supervised boxing training program.
- Age within the predefined youth/adolescent range established in the protocol.
- Regular attendance to boxing training before the beginning of the intervention.
- Ability to complete the standardized boxing-specific test at baseline and post-intervention.
- Medical, coaching, or institutional clearance to participate in regular boxing training.
Key exclusion criteria (6 listed)
- Current musculoskeletal injury or pain limiting boxing training or testing.
- Known cardiovascular, respiratory, neurological, or metabolic condition contraindicating high-intensity exercise.
- Use of medication or substances that may substantially alter heart-rate response, unless medically authorized and documented.
- Inability to complete baseline or post-intervention testing.
- Participation in another structured training intervention likely to interfere with the study outcomes.
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 |
|---|---|---|
| Nine-session high-intensity intermittent boxing trainingThe intervention consists of nine supervised training sessions based on high-intensity intermittent boxing-specific exercises. Sessions will be conducted in a real-world amateur boxing training environment and will involve repeated high-intensity efforts, recovery intervals, and technical actions representative of boxing demands. The intervention is not pharmacological and does not involve a medical device. | Behavioural | Experimental: High-Intensity Intermittent Boxing Training |
Primary outcome
Change in total punching output during the boxing-specific test
Time frame: Baseline and post-intervention, within 48-72 hours after the ninth training session
Total number of punches completed across all active rounds of the standardized boxing-specific test. Punches will be counted during each active round and summed to obtain total punching output.
6 secondary outcomes
Change in round-by-round punching output
Time frame: Baseline and post-intervention, within 48-72 hours after the ninth training session
Change in heart rate immediately after the boxing-specific test
Time frame: Immediately after the test at baseline and immediately after the test post-intervention
Change in heart rate one minute after the boxing-specific test
Time frame: One minute after the test at baseline and one minute after the test post-intervention
Change in one-minute heart-rate recovery
Time frame: Baseline and post-intervention, within 48-72 hours after the ninth training session
Change in accelerometer-derived sum of absolute acceleration peaks per round
Time frame: Baseline and post-intervention, within 48-72 hours after the ninth training session
Change in total accelerometer-derived sum of absolute acceleration peaks
Time frame: Baseline and post-intervention, within 48-72 hours after the ninth training session
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 6 May 2026.
- BackgroundRodrigues Maciel A, Herling Lambertucci R, Madureira Barbosa F, Fernandes Guerra RL. Proposal and reproducibility of a specific test for amateur boxing. Ido Movement for Culture. Journal of Martial Arts Anthropology. 2023;23(4):8-15. doi:10.14589/ido.23.4.2.
- Background: PubMed 8543363Ghosh AK, Goswami A, Ahuja A. Heart rate & blood lactate response in amateur competitive boxing. Indian J Med Res. 1995 Oct;102:179-83.
- Background: PubMed 30431531Franchini E, Cormack S, Takito MY. Effects of High-Intensity Interval Training on Olympic Combat Sports Athletes' Performance and Physiological Adaptation: A Systematic Review. J Strength Cond Res. 2019 Jan;33(1):242-252. doi: 10.1519/JSC.0000000000002957.
- Background: PubMed 31904713Vasconcelos BB, Protzen GV, Galliano LM, Kirk C, Del Vecchio FB. Effects of High-Intensity Interval Training in Combat Sports: A Systematic Review with Meta-Analysis. J Strength Cond Res. 2020 Mar;34(3):888-900. doi: 10.1519/JSC.0000000000003255.
- Individual participant dataSharing planned: No. Individual participant data will not be shared because the study involves minors and a small sport-specific sample, which may increase the risk of indirect identification. Results will be reported only in aggregate form. Non-identifiable summary data or analytic procedures may be made available upon reasonable request, subject to institutional ethics approval and participant confidentiality safeguards.
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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 Nine-session high-intensity intermittent boxing training in people with Athletic Performance and Exercise Training, 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 7 inclusion and 6 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 6 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 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 total punching output during the boxing-specific test (time frame: Baseline and post-intervention, within 48-72 hours after the ninth training session). 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 NCT07571070, which also lists 4 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 6 May 2026.