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| Name | Class |
|---|---|
| Guangzhou Sport University | OTHER |
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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| IPC Trial | Experimental | 220 mmHg |
|
| SHAM Trial | Placebo Comparator | 20 mmHg |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Ischemic Preconditioning | Procedure | Compression cuff width: 10CM; Compression duration: 5min/5min (ischemia/reperfusion) *4. 220 mmHg |
|
| Measure | Description | Time Frame |
|---|---|---|
| Taekwondo-specific sports performance test. | The specialized athletic ability in Taekwondo is measured by the number of kicks performed during the test. | 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 | Used to measure the autonomic nervous function of taekwondo athletes. | 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 | Used to measure the autonomic nervous function of taekwondo athletes. | 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 | Used to measure the intensity and metabolic adaptations during the testing process of taekwondo athletes. | 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 |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Guangzhou Sport University | Guangzhou | Guangdong | 510500 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 24036256 | Background | Tsutsui H, Tanaka R, Yamagata M, Yukimura T, Ohkita M, Matsumura Y. Protective effect of ischemic preconditioning on ischemia/reperfusion-induced acute kidney injury through sympathetic nervous system in rats. Eur J Pharmacol. 2013 Oct 15;718(1-3):206-12. doi: 10.1016/j.ejphar.2013.08.032. Epub 2013 Sep 12. | |
| 30416451 | Background |
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The data presented in this study are currently unpublished. The corresponding author will provide the relevant research data upon reasonable request after the associated paper has been officially accepted.
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| ID | Term |
|---|---|
| D019194 | Ischemic Preconditioning |
| C005703 | salicylhydroxamic acid |
| ID | Term |
|---|---|
| D013812 | Therapeutics |
| D008919 | Investigative Techniques |
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| Sham (No Treatment) | Procedure | Compression cuff width: 10CM; Compression duration: 5min/5min (compression/relaxation) *4. 20 mmHg |
|
| Lopes TR, Sabino-Carvalho JL, Ferreira THN, Succi JE, Silva AC, Silva BM. Effect of Ischemic Preconditioning on the Recovery of Cardiac Autonomic Control From Repeated Sprint Exercise. Front Physiol. 2018 Oct 26;9:1465. doi: 10.3389/fphys.2018.01465. eCollection 2018. |
| 31500561 | Background | Noronha Osorio D, Viana-Soares R, Marto JP, Mendonca MD, Silva HP, Quaresma C, Viana-Baptista M, Gamboa H, Vieira HLA. Autonomic nervous system response to remote ischemic conditioning: heart rate variability assessment. BMC Cardiovasc Disord. 2019 Sep 9;19(1):211. doi: 10.1186/s12872-019-1181-5. |
| 3769170 | Background | Murry CE, Jennings RB, Reimer KA. Preconditioning with ischemia: a delay of lethal cell injury in ischemic myocardium. Circulation. 1986 Nov;74(5):1124-36. doi: 10.1161/01.cir.74.5.1124. |
| 41680854 | Derived | Ou Z, Yang L, Zhu H, Weng X, Xu G. Ischemic preconditioning enhances autonomic nervous system modulation during frequency speed of kick test in taekwondo athletes: a randomized crossover study. BMC Sports Sci Med Rehabil. 2026 Feb 12;18(1):136. doi: 10.1186/s13102-026-01602-2. |