Abstract
This study evaluated the acute effect of ischemic preconditioning (IPC) on a high-intensity intermittent exercise performance and physiological indicators in amateur soccer players. Thirteen players (21.5 ± 2 yrs) attended three trials separated by 3–5 days in a counterbalanced randomized cross-over design: IPC (4 × 5-min occlusion 220 mmHg/reperfusion 0 mmHg) in each thigh; SHAM (similar to the IPC protocol but “occlusion” at 20 mmHg) and control (seated during the same time of IPC). After 6-min of each trial (IPC, SHAM or control), the players performed the YoYo Intermittent Endurance Test level 2 (YoYoIE2). The distance covered in the YoYoIE2 (IPC 867 ± 205 m; SHAM 873 ± 212 m; control 921 ± 206 m) was not different among trials (p = 0.10), furthermore, lactate concentration and rate of perceived exertion did not differ (P > 0.05) among protocols. There were also no significant differences in either mean heart rate (HR) or peak HR (p > 0.05) for both IPC and SHAM compared to control. Therefore, we conclude that acute IPC does not influence high-intensity intermittent exercise performance in amateur soccer players and that rate of perceived exertion, heart rate and lactate do not differ between the intervention IPC, SHAM and control.
Highlights
The technique of ischemic preconditioning (IPC) alternates brief periods of occlusion and re-establishment (e.g., 3–5 min each) of muscle blood flow prior to exercise using a tourniquet applied in the proximal part of a limb (Marocolo et al, 2016a) aiming to improve exercise performance
The distance covered in the YoYo Intermittent Endurance Test level 2 (YoYoIE2) did not differ (P = 0.10; effect size (ES) = 0.16) among the protocols (Fig. 1)
The distance covered in the YoYoIE2 did not differ significantly among the three conditions, showing no influence, as well as no practical relevance (i.e.; trivial effect sizes) of acute IPC on this sort of test and population
Summary
The technique of ischemic preconditioning (IPC) alternates brief periods of occlusion and re-establishment (e.g., 3–5 min each) of muscle blood flow prior to exercise using a tourniquet applied in the proximal part of a limb (e.g., lower limbs) (Marocolo et al, 2016a) aiming to improve exercise performance. IPC has been suggested to improve aerobic and anaerobic performance (Cruz et al, 2015; Incognito, Burr & Millar, 2016) mostly in high-intensity exercise in cyclic modalities (e.g., running, cycling, swimming). Since IPC seems to improve performance in exercise tests of predominantly lactic anaerobic and aerobic capacity (Incognito, Burr & Millar, 2016), the aim of this study was to evaluate the acute effect of IPC on YoYoIE2 performance and some physiological parameters in amateur soccer players. We hypothesized that IPC would increase the distance covered in YoYoIE2, because this test for our specific sample (amateur players) would be suitable to recruit predominantly both the glycolytic and aerobic systems and, meet the ergogenic potential from IPC (Cruz et al, 2015; Incognito, Burr & Millar, 2016)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
