Aerobic Capacity, Ischemic Preconditioning
Conditions
Keywords
Ischemic preconditioning, Energy metabolism, Sports performance, Oxygen uptake
Brief summary
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.
Interventions
DEVICEIschemic Preconditioning
Compression cuff width: 10CM; Compression duration: 5min/5min (ischemia/reperfusion) \*4. 220 mmHg
DEVICESham
Compression cuff width: 10CM; Compression duration: 5min/5min (compression/relaxation) \*4. 20 mmHg
Sponsors
Ziyue Ou
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
MALE
Age
18 Years to 22 Years
Healthy volunteers
Yes
Inclusion criteria
* adult male athletes aged 18 years or older; * taekwondo athletes classified as national second-class or above (having placed in the top three provincial professional taekwondo championships or the top eight national professional taekwondo championships); * consistent and unified training over the past three months; * no prior ischemic preconditioning; * competitive taekwondo athletes.
Exclusion criteria
* supplementation with creatine; * acute or chronic illnesses, including anxiety, depression, cardiovascular diseases, and metabolic disorders; * engaging in vigorous physical activity within 48 hours prior to the experiment; * consuming alcohol or caffeine within 24 hours before the experiment.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Oxygen uptake | Participants had their oxygen uptake measured continuously during both visits, extending until six minutes after the completion of the exercise test. | To record the oxygen uptake of the subjects and compare the changes in oxygen uptake after the intervention. |
| Taekwondo-specific sports performance test | 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. | The specialized athletic ability in Taekwondo is measured by the number of kicks performed during the test. |
| Blood lactate | Blood lactate levels were measured at baseline, immediately after the intervention at 3 minutes, and at 3 and 10 minutes post-testing. | Used to measure the intensity and metabolic adaptations during the testing process of taekwondo athletes |
Countries
China
Outcome results
None listed