title: Effects of different levels of compression during sub-maximal and high-intensity exercise on erythrocyte deformability.
abstract: The aim of the study was to test the hypothesis whether different levels of sock compression (0, 10, 20, and 40 mmHg) affect erythrocyte deformability and metabolic parameters during sub-maximal and maximal running. Nine well-trained, male endurance athletes (age 22.2 ± 1.3 years, peak oxygen uptake 57.7 ± 4.5 mL min(-1) kg(-1)) carried out four periods of sub-maximal running at 70% of peak oxygen uptake for 30 min followed by a ramp test until exhaustion with and without compression socks that applied different levels of pressure. Erythrocyte deformability, blood lactate, heart rate and arterial partial pressure of oxygen (pO(2)) were monitored before and during all of these tests. Erythrocyte deformability, heart rate, pO(2) and lactate concentration were unaffected by compression, whereas exercise itself significantly increased erythrocyte deformability. However, the increasing effects of exercise were attenuated when high compression was applied. This first evaluation of the potential effects of increasing levels of compression on erythrocyte deformability and metabolic parameters during (sub-) maximal exercise, revealed no effects whatsoever.
authors.affiliation: Institute of Training Science and Sport Informatics, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany. Wahl@dshs-koeln.de
authors.forename: Patrick
authors.initials: P
authors.lastname: Wahl
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Bloch
authors.forename: Joachim
authors.initials: J
authors.lastname: Mester
authors.forename: Dennis-Peter
authors.initials: DP
authors.lastname: Born
authors.forename: Billy
authors.initials: B
authors.lastname: Sperlich
mesh_terms: D000328:Adult; D004907:Erythrocyte Deformability / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D010100:Oxygen / Q000378:metabolism; D010101:Oxygen Consumption / Q000502:physiology; D010807:Physical Endurance / Q000502:physiology*; D011312:Pressure; D055815:Young Adult
chemical_list: D019344:Lactic Acid; D010100:Oxygen