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Title: Repeated high intensity bouts with long recovery: Are bicarbonate or carbohydrate supplements an option?
Authors: Stöggl, Thomas
Torres-Peralta, Rafael 
Cetin, Ebru
Nagasaki, Masaru
UNESCO Clasification: 241106 Fisiología del ejercicio
Issue Date: 2014
Publisher: 2356-6140
Journal: The Scientific World Journal 
Abstract: The effects of varying recovery modes and the influence of preexercise sodium bicarbonate and carbohydrate ingestion on repeated high intensity performance, acid-base response, and recovery were analyzed in 12 well-trained males. They completed three repeated high intensity running bouts to exhaustion with intervening recovery periods of 25 min under the following conditions: sodium bicarbonate, active recovery (BIC); carbohydrate ingestion, active recovery (CHO); placebo ingestion, active recovery (ACTIVE); placebo ingestion, passive recovery (PASSIVE). Blood lactate (BLa), blood gases, heart rate, and time to exhaustion were collected. The three high intensity bouts had a duration of , and  s demonstrating a decrease from bout 1 to bout 3. Supplementation strategy had no effect on performance in the first bout, even with differences in pH and bicarbonate (HC). Repeated sprint performance was not affected by supplementation strategy when compared to ACTIVE, while PASSIVE resulted in a more pronounced decrease in performance compared with all other interventions. BIC led to greater BLa, pH, and HC values compared with all other interventions, while for PASSIVE the opposite was found. BLa recovery was lowest in PASSIVE; recovery in pH, and HC was lower in PASSIVE and higher in BIC.
ISSN: 2356-6140
DOI: 10.1155/2014/145747
Source: Scientific World Journal[ISSN 2356-6140],v. 2014 (145747)
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