The energetics of semicontact 3 x 2-min amateur boxing
Deutscher übersetzter Titel: | Die Energetik eines Semi 3 x 2-Minuten-Amateurboxkampf |
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Autor: | Davis, Philip; Leithäuser, Renate M.; Beneke, Ralph |
Erschienen in: | International journal of sports physiology and performance |
Veröffentlicht: | 9 (2014), 2, S. 233 – 239, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1555-0265, 1555-0273 |
DOI: | 10.1123/IJSPP.2013-0006 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201410009491 |
Quelle: | BISp |
Abstract des Autors
The energy expenditure of amateur boxing is unknown. Purpose: Total metabolic cost (Wtot) as an aggregate of aerobic (Waer), anaerobic lactic (W[lactate]), and anaerobic alactic (WPCr) energy of a 3 × 2-min semicontact amateur boxing bout was analyzed. Methods: Ten boxers (mean ± SD [lower/upper 95% confidence intervals]) age 23.7 ± 4.1 (20.8/26.6) y, height 180.2 ± 7.0 (175.2/185.2) cm, body mass 70.6 ± 5.7 (66.5/74.7) kg performed a semicontact bout against handheld pads created from previously analyzed video footage of competitive bouts. Net metabolic energy was calculated using respiratory gases and blood [lactate]. Results: Waer, 526.0 ± 57.1 (485.1/566.9) kJ, was higher (P < .001) than WPCr, 58.1 ± 13.6 (48.4/67.8) kJ. W[lactate], 26.2 ± 7.1 (21.1/31.3) kJ, was lower (P < .001) than Waer and WPCr. An ~70-kJ fraction of the aerobic energy expenditure reflects rephosphorylation of high-energy phosphates during the breaks between rounds, which elevated Wtot to ~680 kJ with relative contributions of 77% Waer, 19% WPCr, and 4% W[lactate]. Conclusions: The results indicate that the metabolic profile of amateur boxing is predominantly aerobic. They also highlight the importance of a highly developed aerobic capacity as a prerequisite of a high activity rate during rounds and recovery of the high-energy phosphate system during breaks as interrelated requirements of successful boxing. Verf.-Referat