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dc.contributor.authorSiegler, J.C.
dc.contributor.authorKeatley, S.
dc.contributor.authorMidgley, A.W.
dc.contributor.authorNevill, Alan M.
dc.contributor.authorMcNaughton, Lars R.
dc.date.accessioned2008-06-25T13:17:49Z
dc.date.available2008-06-25T13:17:49Z
dc.date.issued2008
dc.identifier.citationInternational Journal of Sports Medicine, 29(7): 545-551
dc.identifier.issn0172-4622
dc.identifier.pmid18004683
dc.identifier.doi10.1055/s-2007-989261
dc.identifier.urihttp://hdl.handle.net/2436/30458
dc.description.abstractThe aim of this study was to observe the influence of pre-exercise sodium bicarbonate (NaHCO (3)) ingestion and varying recovery modes on acid-base recovery from a single bout of supramaximal exercise. Nine male subjects completed four separate, randomized cycle ergometer exercise trials to volitional fatigue at 120 % maximum power output, under the following conditions: 0.3 g . kg (-1) BW NaHCO (3) ingestion with passive recovery (BICARB P), 0.3 g . kg (-1) BW NaHCO (3) ingestion with active recovery (BICARB A), placebo ingestion with passive recovery (PLAC P) and placebo ingestion with active recovery (PLAC A). Capillary blood samples were obtained every minute for 15 min during recovery. Significant main effects for pH were observed for time (F = 42.1, p < 0.001), intervention (BICARB and PLAC) (F = 1117.3, p < 0.001) and recovery condition (F = 150.0, p < 0.001), as the BICARB condition reduced acid-base perturbation. Significant interaction effects were observed between conditions (BICARB and PLAC) for active and passive recovery modes (F = 29.1, p < 0.001) as the active recovery facilitated H+ removal better than the passive condition. Pre-exercise alkalosis attenuates blood acid-base perturbations from supramaximal exercise to exhaustion, regardless of whether the recovery mode is active or passive. These findings suggest that individuals may benefit from introducing a pre-exercise alkalotic condition while including passive recovery during high-intensity training protocols.
dc.language.isoen
dc.publisherGeorg Thieme Verlag
dc.relation.urlhttp://www.thieme-connect.de/DOI/DOI?10.1055/s-2007-989261
dc.subjectMale athletes
dc.subjectSports Medicine
dc.subjectSodium bicarbonate
dc.subjectActive recovery
dc.subjectpH recovery
dc.subjectSupramaximal exercise
dc.titlePre-exercise alkalosis and Acid-base recovery.
dc.typeJournal article
dc.identifier.journalInternational Journal of Sports Medicine
html.description.abstractThe aim of this study was to observe the influence of pre-exercise sodium bicarbonate (NaHCO (3)) ingestion and varying recovery modes on acid-base recovery from a single bout of supramaximal exercise. Nine male subjects completed four separate, randomized cycle ergometer exercise trials to volitional fatigue at 120 % maximum power output, under the following conditions: 0.3 g . kg (-1) BW NaHCO (3) ingestion with passive recovery (BICARB P), 0.3 g . kg (-1) BW NaHCO (3) ingestion with active recovery (BICARB A), placebo ingestion with passive recovery (PLAC P) and placebo ingestion with active recovery (PLAC A). Capillary blood samples were obtained every minute for 15 min during recovery. Significant main effects for pH were observed for time (F = 42.1, p < 0.001), intervention (BICARB and PLAC) (F = 1117.3, p < 0.001) and recovery condition (F = 150.0, p < 0.001), as the BICARB condition reduced acid-base perturbation. Significant interaction effects were observed between conditions (BICARB and PLAC) for active and passive recovery modes (F = 29.1, p < 0.001) as the active recovery facilitated H+ removal better than the passive condition. Pre-exercise alkalosis attenuates blood acid-base perturbations from supramaximal exercise to exhaustion, regardless of whether the recovery mode is active or passive. These findings suggest that individuals may benefit from introducing a pre-exercise alkalotic condition while including passive recovery during high-intensity training protocols.


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