Ischemic Preconditioning has been confirmed to prevent long-term ischemic damage to tissues, among which the improvement of autonomic nerve system function may be one of its mechanisms of action. In recent years, IPC has gradually been applied to enhance athletic performance and accelerate postexercise recovery; however, there has been limited research on the effects of IPC on ANS function and competitive condition before and after exercise. This study investigated the effects of IPC on ANS function before and after sport-specific testing in taekwondo athletes. The objectives of our study are (1) to investigate the impact of IPC on two indicators of autonomic nervous function-HRV and HRR-and (2) to reveal the coordinating effect of IPC on the sympathetic and parasympathetic nervous systems during the warm-up phase and after specific testing in taekwondo athletes. The investigators hypothesize that IPC enhances sympathetic drive during the warm-up phase and rapidly activates the parasympathetic nervous system postexercise, which is accompanied by improvements in the athletes' competitive condition.
Age range
18 Years – 22 Years
Sex
MALE
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Taekwondo-specific sports performance test.
Timeframe: Five minutes after the intervention, a standard warm-up lasting 10 minutes is conducted. Following the warm-up, a rest period of 5 minutes is observed. Subsequently, three sets of specialized sports performance tests are administered, with each set lasti
Heart rate variability
Timeframe: The measurement time points were as follows: heart rate variability was assessed in the resting state upon participants' arrival at the testing site, after a warm-up, and following the sport-specific performance test.
Heart rate recovery
Timeframe: The measurement time points were established as follows: heart rate recovery was assessed for 1 minute during the intervals of each test group. Additionally, heart rate recovery was recorded at both 1 minute and 5 minutes following the completion of thre
Blood lactate
Timeframe: Blood lactate measurements were taken at several key time points during the study: upon participants' arrival at the test site while they were in a quiet state; at the 3rd minute following the conclusion of the intervention; prior to the commencement of