Blood Flow Restriction Training (BFRT) is a special training technique aimed at limiting blood flow by using cuffs or elastic bands on the limbs to promote muscle growth and improve strength. BFRT was originally designed for rehabilitation injured athletes as it can improve muscle strength while reducing load, helping to avoid further injuries during the rehabilitation process. But as research deepens, it is gradually being applied to a wider range of fitness and training fields. One major advantage of BFRT is that it allows for efficient training under relatively light loads, reducing the burden on joints and tendons, making it suitable for people who find it difficult to withstand high-intensity training due to injuries or other reasons. Meanwhile, BFRT also has the characteristic of achieving muscle growth and strength growth in a short period of time, and it is considered a time-saving training method. BFRT can not only be used for strength training, but also for rehabilitation, i

Instrument Assisted Soft Tissue Mobilization (IASTM) is a physical therapy technique that utilizes specially designed tools (such as metal or plastic scraping boards) to assist in the treatment of soft tissue problems. Mainly used in rehabilitation medicine, sports medicine, and plastic surgery, it is used to handle tension, adhesion, pain, and motor dysfunction of muscles, fascia, and tendons. The edge design of IASTM special tools can loosen adhesions in tissues, improving their elasticity and plasticity. Regulating pathological areas through neural pathways, reducing pain and improving neurological function. And different types of treatment tools improve the accuracy of treatment, promote blood circulation, accelerate the rehabilitation process, improve tissue elasticity, expand joint range of motion, and have lower risks and complications compared to invasive surgery.

Blood Flow Restriction (BFR) training, also known as occlusion training or restricted blood flow training, involves applying external pressure to a limb using inflatable cuffs or elastic bands. This pressure partially restricts arterial blood flow while occluding venous blood flow in the pressured limb. The goal is to increase muscle strength and size by creating metabolic stress and promoting physiological adaptations, such as muscle hypertrophy, with lighter loads than traditional resistance training.

Evaluated the patient's perception of ankle instability, including the frequency, CAIT typically includes a specific range of questions, each of which may have different scores. The total score is usually between 0 and 30 points, with higher scores indicating higher stability intensity, and impact of symptoms

Foot and Ankle Ability Measure (FAAM) is a scale used to evaluate ankle joint function, which includes questions about pain, function, and quality of life, and can be used to assess the overall condition of patients with ankle instability. The functional score includes two types of assessments: the functional level of daily life (FAAM-ADL) and the functional level of physical activity (FAAM-SPORT). The score range is usually from 0 to 100, where 100 represents completely normal ankle joint function, and 0 represents extreme restriction or complete inability to use the ankle joint.

This study used a high-precision joint motion angle measuring ruler to measure the range of motion of different ankle functions in both sitting and supine positions, including measurements of dorsiflexion and plantar flexion of the ankle, as well as measurements of varus and eversion of the foot. The larger the angle, the better the improvement in joint motion.

The experimental strength data was tested using a handheld digital muscle strength tester (model: FM-204M series muscle strength tester). The measurement unit of this muscle strength tester is N, with a measurement unit range of ± 50kgf and a measurement accuracy of ± 0.5% FS (range) ± 1 digital peak. The measured data includes both peak strength and instantaneous strength values. Therefore, this study used a handheld digital muscle strength tester, where participants sat in a suitable position, fixed the bottom of the instrument on the ground, and then applied force in different directions through their ankles. Measure the maximum force in the direction of dorsiflexion and plantarflexion of the ankle joint, abduction and eversion of the foot, and adduction and eversion. The strength test for each different exercise segment needs to be completed three times, and the average of the maximum strength values from the three tests is taken.