The purpose of this clinical trial is to investigate whether IPC can improve aerobic capacity during exercise. The primary question it aims to answer is: Does IPC enhance the aerobic capacity of athletes? The researchers will compare IPC (220 mmHg pressure) with a placebo (20 mmHg pressure) to see if different interventions can enhance aerobic capacity and exercise performance. Participants will: * Undergo a randomized crossover controlled trial, visiting twice, with a one-week interval between each test. * Conduct two assessments at the testing site each time, namely a pre-intervention assessment and a post-intervention assessment. * Record their heart rate, blood pressure, weight, oxygen uptake, Taekwondo-specific performance, and other indicators.
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Oxygen uptake
Timeframe: Participants had their oxygen uptake measured continuously during both visits, extending until six minutes after the completion of the exercise test.
Taekwondo-specific sports performance test
Timeframe: The subjects rested quietly for five minutes before baseline measurements were taken. After this, the collection of metabolic gases commenced. Throughout the experiment, metabolic gases were continuously collected until six minutes after the tests.
Blood lactate
Timeframe: Blood lactate levels were measured at baseline, immediately after the intervention at 3 minutes, and at 3 and 10 minutes post-testing.