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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Siegler, Jason C. Hirscher, Kristian |
| Description | Country affiliation: United kingdom Author Affiliation: Siegler JC ( Department of Sport, Health and Exercise Science, University of Hull, Hull HU6 7RX, UK. j.siegler@hull.ac.uk) |
| Abstract | Boxing is a sport that consists of multiple high-intensity bouts separated by minimal recovery time and may benefit from a pre-exercise alkalotic state. The purpose of this study was to observe the ergogenic potential of sodium bicarbonate (NaHCO3) ingestion on boxing performance. Ten amateur boxers volunteered to participate in 2 competitive sparring bouts. The boxers were prematched for weight and boxing ability and consumed either 0.3 g.kg(-1) body weight (BW) of NaHCO3 (BICARB) or 0.045 g.kg(-1) BW of NaCl placebo (PLAC) mixed in diluted low calorie-flavored cordial. The sparring bouts consisted of four 3-minute rounds, each separated by 1-minute seated recovery. Blood acid-base (pH, bicarbonate [HCO3(-)], base excess [BE]), and performance (rates of perceived exertion [RPE], heart rate [HR] [HR(ave) and HR(max)], total punches landed successfully) profiles were analyzed before (where applicable) and after sparring. The results indicated a significant interaction effect for HCO3(-) (p < or = 0.001) and BE (p < 0.001), but not for pH (p = 0.48). Post hoc analysis revealed higher presparring HCO3(-) and BE for the BICARB condition, but no differences between the BICARB and PLAC conditions postsparring. There was a significant increase in punches landed during the BICARB condition (p < 0.001); however, no significant interaction effects for HRave (p = 0.15), HRmax (p = 0.32), or RPE (p = 0.38). The metabolic alkalosis induced by the NaHCO3 loading elevated before and after sparring blood buffering capacity. In practical application, the findings suggest that a standard NaHCO3 loading dose (0.3 g.kg(-1)) improves punch efficacy during 4 rounds of sparring performance. |
| File Format | HTM / HTML |
| ISSN | 10648011 |
| Issue Number | 1 |
| Volume Number | 24 |
| e-ISSN | 15334287 |
| Journal | Journal of Strength and Conditioning Research |
| Language | English |
| Publisher | Lippincott Williams & Wilkins |
| Publisher Date | 2010-01-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Sport Sciences Athletic Performance Physiology Boxing Sodium Bicarbonate Pharmacology Acid-base Equilibrium Drug Effects Buffers Double-blind Method Humans Male Physical Endurance Young Adult Journal Article Randomized Controlled Trial |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science |
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