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Full-Text Articles in Medicine and Health Sciences
Intraocular Pressure And Cerebral Oxygenation During Prolonged Headward Acceleration, Ola Eiken, Michail E. Keramidas, Nigel A.S. Taylor, Mikael Gronkvist
Intraocular Pressure And Cerebral Oxygenation During Prolonged Headward Acceleration, Ola Eiken, Michail E. Keramidas, Nigel A.S. Taylor, Mikael Gronkvist
Faculty of Science, Medicine and Health - Papers: part A
Purpose Supra-tolerance head-to-foot directed gravitoinertial load (+Gz) typically induces a sequence of symptoms/ signs, including loss of: peripheral vision—central vision— consciousness. The risk of unconsciousness is greater when anti-G-garment failure occurs after prolonged rather than brief exposures, presumably because, in the former condition, mental signs are not consistently preceded by impaired vision. The aims were to investigate if prolonged exposure to moderately elevated +Gz reduces intraocular pressure (IOP; i.e., improves provisions for retinal perfusion), or the cerebral anoxia reserve. Methods Subjects were exposed to 4-min +Gz plateaux either at 2 and 3 G (n = 10), or at 4 and …
Knowledge Of Bout Duration Influences Pacing Strategies During Small-Sided Games, John Sampson, Hugh Fullagar, Tim Gabbett
Knowledge Of Bout Duration Influences Pacing Strategies During Small-Sided Games, John Sampson, Hugh Fullagar, Tim Gabbett
Faculty of Science, Medicine and Health - Papers: part A
This investigation examines pacing during intermittent team sports. Sixteen junior Rugby League players participated in eight different small-sided offside touch games. All games were 24 min, but bout durations differed in continuous (1 × 24 min) or repeated (2 × 12, 3 × 8, 4 × 6, 6 × 4, 8 × 3, 12 × 2 or 24 × 1 min) formats. Repeat bouts were interspersed by 2 min of passive rest, and participants were informed of the bout duration immediately prior to the game. Heart rates, ratings of perceived exertion and data gathered from global positioning system devices were …