Effects of Low-Intensity Blood Flow Restriction Training on Strength and Kicking Performance in Taekwondo Athletes

This study investigates the effects of low-intensity blood flow restriction training (LI-BFRT) on neuromuscular performance in taekwondo athletes. BFRT involves the application of external pressure to the proximal limbs to partially restrict blood flow during exercise, creating a hypoxic and metabolically stressful environment that may enhance muscle activation and promote performance adaptations.

Participants are randomly assigned to either a LI-BFRT group or a high-intensity resistance training (HIRT) group. Both groups complete a 6-week lower-limb resistance training program performed three times per week. The LI-BFRT group performs exercises at low intensity under controlled occlusion, while the HIRT group performs conventional high-load resistance training.

Outcome assessments focus on lower-limb strength, explosive performance, and sport-specific kicking ability. These measures are used to evaluate the effectiveness of LI-BFRT compared with HIRT in improving performance-related outcomes.

This study aims to determine whether LI-BFRT can achieve comparable training effects to traditional high-intensity resistance training while using lower mechanical loads, providing a practical training strategy for taekwondo athletes.

Inclusion criteria

• 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.

Exclusion criteria

• 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.