title: Does upper-body compression improve 3 × 3-min double-poling sprint performance?
abstract: OBJECTIVE
  To evaluate whether upper-body compression affects power output and selected metabolic, cardiorespiratory, hemodynamic, and perceptual responses during three 3-min sessions of double-poling (DP) sprint.
  
  
  METHODS
  Ten well-trained male athletes (25 ± 4 y, 180 ± 4 cm, 74.6 ± 3.2 kg) performed such sprints on a DP ski ergometer with and without a long-sleeved compression garment.
  
  
  RESULTS
  Mean power output was not affected by such compression (216 ± 25 W in both cases; P = 1.00, effect size [ES] = 0.00), although blood lactate concentration was lowered (P < .05, ES = 0.50-1.02). Blood gases (ES = 0.07-0.50), oxygen uptake (ES = 0.04-0.28), production of carbon dioxide (ES = 0.01-0.46), heart rate (ES = 0.00-0.21), stroke volume (ES = 0.33-0.81), and cardiac output (ES = 0.20-0.91) were also all unaffected by upper-body compression (best P = 1.00). This was also the case for changes in the tissue saturation index (ES = 0.45-1.17) and total blood content of hemoglobin (ES = 0.09-0.85), as well as ratings of perceived exertion (ES = 0.15-0.88; best P = .96).
  
  
  CONCLUSIONS
  The authors conclude that the performance of well-trained athletes during 3 × 3-min DP sprints will not be enhanced by upper-body compression.
authors.affiliation: Inst of Sport Science, University of Würzburg, Würzburg, Germany.
authors.forename: Billy
authors.initials: B
authors.lastname: Sperlich
authors.forename: Dennis-Peter
authors.initials: DP
authors.lastname: Born
authors.forename: Christoph
authors.initials: C
authors.lastname: Zinner
authors.forename: Anna
authors.initials: A
authors.lastname: Hauser
authors.forename: Hans-Christer
authors.initials: HC
authors.lastname: Holmberg
mesh_terms: D000328:Adult; D054874:Athletic Performance / Q000502:physiology*; D002245:Carbon Dioxide / Q000032:analysis; D002302:Cardiac Output / Q000502:physiology; D003020:Clothing; D058128:Compression Bandages; D006339:Heart Rate / Q000502:physiology; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology; D012420:Running / Q000502:physiology*; D013318:Stroke Volume / Q000502:physiology; D034941:Upper Extremity / Q000502:physiology*; D055815:Young Adult
chemical_list: D006454:Hemoglobins; D002245:Carbon Dioxide; D019344:Lactic Acid