NCT07538037

Brief Summary

This study aims to investigate the effects of low-intensity blood flow restriction training (LI-BFRT) on lower-limb strength and kicking performance in taekwondo athletes. Blood flow restriction training is a method that partially restricts blood flow to the muscles during exercise, which may improve performance while reducing training load.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
2mo left

Started Apr 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress34%
Apr 2026Jun 2026

First Submitted

Initial submission to the registry

April 10, 2026

Completed
Same day until next milestone

Study Start

First participant enrolled

April 10, 2026

Completed
10 days until next milestone

First Posted

Study publicly available on registry

April 20, 2026

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 29, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 29, 2026

Last Updated

April 20, 2026

Status Verified

April 1, 2026

Enrollment Period

3 months

First QC Date

April 10, 2026

Last Update Submit

April 10, 2026

Conditions

Keywords

Blood Flow Restriction TrainingLow-Intensity Resistance TrainingTaekwondo AthletesAthletic PerformanceExplosive StrengthAnaerobic Power

Outcome Measures

Primary Outcomes (1)

  • Sport-specific kicking performance

    Sport-specific kicking performance is assessed using a standardized kicking test, including kicking frequency and kicking decrement index during repeated kicking tasks.

    Baseline and after 6 weeks

Secondary Outcomes (2)

  • Lower-limb strength

    Baseline and after 6 weeks

  • Anaerobic performance

    Baseline and after 6 weeks

Study Arms (2)

LI-BFRT

EXPERIMENTAL

Participants perform low-intensity resistance training combined with blood flow restriction. External pressure is applied to the proximal limbs during exercise to partially restrict blood flow. The training program is conducted three times per week for 6 weeks.

Other: LI-BFRT

HIRT

ACTIVE COMPARATOR

Participants perform conventional high-intensity resistance training without blood flow restriction. The training program is conducted three times per week for 6 weeks.

Other: HIRT

Interventions

LI-BFRTOTHER

Low-intensity resistance training combined with blood flow restriction applied to the proximal limbs.

LI-BFRT
HIRTOTHER

Conventional high-intensity resistance training without blood flow restriction.

HIRT

Eligibility Criteria

Age16 Years - 25 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • \- Taekwondo athletes aged 16-25 years National-level athletes (National Level 1 or higher); Minimum of 3 years of systematic taekwondo training experience; Free from lower-limb injury within the past 6 months; Able to complete the training intervention and testing procedures.

You may not qualify if:

  • \- History of cardiovascular, metabolic, or neurological disorders; Current musculoskeletal injury or pain affecting training; Participation in other structured resistance training programs during the study period; Use of medications or supplements that may affect physical performance Inability or unwillingness to provide informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shanghai University of Sport

Shanghai, Shanghai Municipality, 200438, China

RECRUITING

Related Publications (4)

  • Awana G, Rizvi MR, Sharma A, Aldalaykeh M, Zaidi Z, Makhija S, Sami W, Al-Kuwari NFA. Blood flow restriction training enhances punching force and upper body strength in elite boxers: a randomized trial. Front Physiol. 2025 Oct 17;16:1693271. doi: 10.3389/fphys.2025.1693271. eCollection 2025.

  • Erickson LN, Owen MK, Casadonte KR, Janatova T, Lucas K, Spencer K, Brightwell BD, Graham MC, White MS, Thomas NT, Latham CM, Jacobs CA, Conley CE, Thompson KL, Johnson DL, Hardy PA, Fry CS, Noehren B. The Efficacy of Blood Flow Restriction Training to Improve Quadriceps Muscle Function after Anterior Cruciate Ligament Reconstruction. Med Sci Sports Exerc. 2025 Feb 1;57(2):227-237. doi: 10.1249/MSS.0000000000003573. Epub 2024 Oct 1.

  • Schoenfeld BJ. Potential mechanisms for a role of metabolic stress in hypertrophic adaptations to resistance training. Sports Med. 2013 Mar;43(3):179-94. doi: 10.1007/s40279-013-0017-1.

  • Bridge CA, Ferreira da Silva Santos J, Chaabene H, Pieter W, Franchini E. Physical and physiological profiles of taekwondo athletes. Sports Med. 2014 Jun;44(6):713-33. doi: 10.1007/s40279-014-0159-9.

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Model Details: Participants are randomly assigned to two parallel groups: a low-intensity blood flow restriction training (LI-BFRT) group and a high-intensity resistance training (HIRT) group. Both groups complete a 6-week training intervention, and outcomes are assessed before and after the intervention.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Master's Student

Study Record Dates

First Submitted

April 10, 2026

First Posted

April 20, 2026

Study Start

April 10, 2026

Primary Completion (Estimated)

June 29, 2026

Study Completion (Estimated)

June 29, 2026

Last Updated

April 20, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

data are not publicly available due to ethical restrictions

Locations