The impact of 100 hours of exercise and sleep deprivation on cognitive function and physical capacities

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Show simple item record Anson, James en Lucas, SJE en Palmer, CD en Hellemans, IJ en Cotter, JD en 2012-03-15T02:34:34Z en 2009 en
dc.identifier.citation Journal of Sports Sciences 27(7):719-728 2009 en
dc.identifier.issn 0264-0414 en
dc.identifier.uri en
dc.description.abstract In this study, we examined the effect of 96–125 h of competitive exercise on cognitive and physical performance. Cognitive performance was assessed using the Stroop test (n ¼ 9) before, during, and after the 2003 Southern Traverse adventure race. Strength (MVC) and strength endurance (time to failure at 70% current MVC) of the knee extensor and elbow flexor muscles were assessed before and after racing. Changes in vertical jump (n ¼ 24) and 30-s Wingate performance (n ¼ 27) were assessed in a different group of athletes. Complex response times were affected by the race (16% slower), although not significantly so (P ¼ 0.18), and were dependent on exercise intensity (less so at 50% peak power output after racing). Reduction of strength (P50.05) of the legs (17%) and arms (11%) was equivalent (P ¼ 0.17). Reductions in strength endurance were inconsistent (legs 18%, P ¼ 0.09; arms 13%, P ¼ 0.40), but were equivalent between limbs (P ¼ 0.80). Similar reductions were observed in jump height (78+9%, P50.01) and Wingate peak power (77+15%, P ¼ 0.04), mean power (77+11%, P50.01), and end power (710+11%, P50.01). We concluded that: moderate-intensity exercise may help complex decision making during sustained stress; functional performance was modestly impacted, and the upper and lower limbs were affected similarly despite being used disproportionately. en
dc.publisher Taylor & Francis en
dc.relation.ispartofseries Journal of Sports Sciences en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title The impact of 100 hours of exercise and sleep deprivation on cognitive function and physical capacities en
dc.type Journal Article en
dc.identifier.doi 10.1080/02640410902798167 en
pubs.begin-page 719 en
pubs.volume 27 en
dc.rights.holder Copyright: Taylor & Francis en
pubs.end-page 728 en
pubs.publication-status Published en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 195945 en Science en Exercise Sciences en
pubs.record-created-at-source-date 2010-12-12 en

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