Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Your vote was cast
Thank you for your feedback
Thank you for your feedback
MetadataShow full item record
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.
CitationInternational Journal of Sports Medicine, 29(7): 545-551
PublisherGeorg Thieme Verlag
JournalInternational Journal of Sports Medicine
- Metabolic alkalosis, recovery and sprint performance.
- Authors: Siegler JC, McNaughton LR, Midgley AW, Keatley S, Hillman A
- Issue date: 2010 Nov
- Influence of pre-exercise acidosis and alkalosis on the kinetics of acid-base recovery following intense exercise.
- Authors: Robergs R, Hutchinson K, Hendee S, Madden S, Siegler J
- Issue date: 2005 Feb
- Anaerobic work and power output during cycle ergometer exercise: effects of bicarbonate loading.
- Authors: McNaughton L, Curtin R, Goodman G, Perry D, Turner B, Showell C
- Issue date: 1991 Summer
- Sodium bicarbonate ingestion does not alter the slow component of oxygen uptake kinetics in professional cyclists.
- Authors: Santalla A, Pérez M, Montilla M, Vicente L, Davison R, Earnest C, Lucía A
- Issue date: 2003 Jan
- Ingestion of Sodium Bicarbonate (NaHCO<sub>3</sub>) Following a Fatiguing Bout of Exercise Accelerates Postexercise Acid-Base Balance Recovery and Improves Subsequent High-Intensity Cycling Time to Exhaustion.
- Authors: Gough LA, Rimmer S, Osler CJ, Higgins MF
- Issue date: 2017 Oct