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Repeated high intensity bouts with long recovery: Are bicarbonate or carbohydrate supplements an option?
Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences. Department of Sport Science and Kinesiology, University of Salzburg, Schlossallee 49, Hallein/Rif, Austria . (NVC)ORCID iD: 0000-0002-6685-1540
Department of Physical Education, University of Las Palmas de Gran Canaria, C/Juan de Quesada, No. 30, Las Palmas de Gran Canaria, Spain .
School of Physical Education and Sports, Gazi University Teknikokullar, Ankara, Turkey .
Department of Health Science, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho Nisshin, Aichi, Japan .
2014 (English)In: Scientific World Journal, ISSN 2356-6140, Art. no. 145747- p.Article in journal (Refereed) Published
Abstract [en]

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 138 ± 9, 124 ± 6, and 121 ± 6 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 O 3 -). 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 O 3 - values compared with all other interventions, while for PASSIVE the opposite was found. BLa recovery was lowest in PASSIVE; recovery in pH, and HC O 3 - was lower in PASSIVE and higher in BIC.

Place, publisher, year, edition, pages
2014. Art. no. 145747- p.
National Category
Sport and Fitness Sciences
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URN: urn:nbn:se:miun:diva-24074DOI: 10.1155/2014/145747ScopusID: 2-s2.0-84912570967OAI: oai:DiVA.org:miun-24074DiVA: diva2:777060
Available from: 2015-01-08 Created: 2015-01-07 Last updated: 2016-10-26Bibliographically approved

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