Effect of Ischemic Preconditioning on Endurance Running Performance in the Heat.
Ischemic preconditioning (IPC) is a strategy that may enhances endurance performance in thermoneutral environments. Exercising in the heat increases thermoregulatory and cardiovascular strain, decreasing endurance performance. The current study aimed to determine whether IPC administration improves...
| Publicado en: | Journal of Sports Science & Medicine Vol. 23; no. 4; pp. 799 - 812 |
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| Autores principales: | , |
| Formato: | equations & formulas research tables/charts randomized controlled trial Journal Article |
| Publicado: |
Hakan Gur, Journal of Sports Science & Medicine
Dec2024
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=181561543&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 181561543 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13032968 FYN jtl: Journal of Sports Science & Medicine issn: 13032968 maglogo: N pubinfo: dt: Dec2024 vid: 23 iid: 4 pid: 26030 pub: Hakan Gur, Journal of Sports Science & Medicine artinfo: ui: 181561543 181561543 181561543 10.52082/jssm.2024.799 181561543 ppf: 799 ppct: 13 formats: fmt: @attributes: type: P tig: atl: Effect of Ischemic Preconditioning on Endurance Running Performance in the Heat. aug: au: Anjie Wang Chansol Hurr affil: Department of Physical Education, Anhui Polytechnic University, Wuhu, China sug: subj: Ischemic Preconditioning Running Physical Endurance Athletic Performance Heat Human Randomized Controlled Trials Crossover Design Exercise Intensity Oxygen Consumption Core Body Temperature Stroke Volume Body Temperature Regulation Funding Source Hydration Status ab: Ischemic preconditioning (IPC) is a strategy that may enhances endurance performance in thermoneutral environments. Exercising in the heat increases thermoregulatory and cardiovascular strain, decreasing endurance performance. The current study aimed to determine whether IPC administration improves endurance performance in the heat. In a randomized crossover design, 12 healthy subjects (VO2max: 54.4 ± 8.1 mL⋅kg-1⋅min-1) underwent either IPC administration (220 mmHg) or a sham treatment (20 mmHg), then completed a moderate-intensity 6-min running (EX1) and a high-intensity time-to-exhaustion running test (EX2) in a hot environment (35 °C, 50 % RH). Cardiac function, oxygen consumption (VO2), and core body temperature (TCORE) were measured. During EX2, IPC administration increased the total running time in the heat compared to the sham treatment (IPC: 416.4 ± 61.9 vs. sham 389.3 ± 40.7 s, P = 0.027). IPC administration also increased stroke volume (IPC: 150.4 ± 17.5 vs. sham: 128.2 ± 11.6 ml, P = 0.008) and cardiac output (IPC: 27.4 ± 1.7 vs. sham: 25.1 ± 2.2 ml⋅min-1, P = 0.007) during 100% isotime of EX2. End-exercise VO2 (IPC: 3.72 ± 0.85 vs. sham: 3.54 ± 0.87 L⋅min-1, P = 0.017) and slow phase amplitude (IPC: 0.57 ± 0.17 vs. sham: 0.72 ± 0.22 L⋅min-1, P = 0.016) were improved. When compared with the baseline period, an increase in TCORE was less in the IPC condition during EX1 (IPC: 0.18 ± 0.06 vs. sham: 0.22 ± 0.08 °C, P = 0.005) and EX2 (IPC: 0.87 ± 0.10 vs. sham: 1.03 ± 0.10 °C, P < 0.001). IPC improves high-intensity endurance performance in the heat by 6.9 %. This performance benefit could be associated with improved cardiac and thermoregulatory function engendered by IPC administration. pubtype: Academic Journal doctype: equations & formulas research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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