NDLI: Sodium bicarbonate supplementation improves hypertrophy-type resistance exercise performance

Content Provider	Springer Nature Link
Author	Carr, Benjamin M. Webster, Michael J. Boyd, Joseph C. Hudson, Geoffrey M. Scheett, Timothy P.
Copyright Year	2012
Abstract	The aim of the present study was to examine the effects of sodium bicarbonate (NaHCO3) administration on lower-body, hypertrophy-type resistance exercise (HRE). Using a double-blind randomized counterbalanced design, 12 resistance-trained male participants (mean ± SD; age = 20.3 ± 2 years, mass = 88.3 ± 13.2 kg, height = 1.80 ± 0.07 m) ingested 0.3 g kg−1 of NaHCO3 or placebo 60 min before initiation of an HRE regimen. The protocol employed multiple exercises: squat, leg press, and knee extension, utilizing four sets each, with 10–12 repetition-maximum loads and short rest periods between sets. Exercise performance was determined by total repetitions generated during each exercise, total accumulated repetitions, and a performance test involving a fifth set of knee extensions to failure. Arterialized capillary blood was collected via fingertip puncture at four time points and analyzed for pH, [HCO3 −], base excess (BE), and lactate [Lac−]. NaHCO3 supplementation induced a significant alkaline state (pH: NaHCO3: 7.49 ± 0.02, placebo: 7.42 ± 0.02, P < 0.05; [HCO3 −]: NaHCO3: 31.50 ± 2.59, placebo: 25.38 ± 1.78 mEq L−1, P < 0.05; BE: NaHCO3: 7.92 ± 2.57, placebo: 1.08 ± 2.11 mEq L−1, P < 0.05). NaHCO3 administration resulted in significantly more total repetitions than placebo (NaHCO3: 139.8 ± 13.2, placebo: 134.4 ± 13.5), as well as significantly greater blood [Lac−] after the exercise protocol (NaHCO3: 17.92 ± 2.08, placebo: 15.55 ± 2.50 mM, P < 0.05). These findings demonstrate ergogenic efficacy for NaHCO3 during HRE and warrant further investigation into chronic training applications.
Starting Page	743
Ending Page	752
Page Count	10
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	113
Issue Number	3
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-09-04
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ergogenic aid Weight lifting Acid–base balance Alkalosis Fatigue Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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