- Title
- Energy system contribution during 200- to 1500-m running in highly trained athletes
- Creator
- Spencer, Matt; Gastin, Paul
- Date
- 2001
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/66553
- Identifier
- vital:834
- Identifier
-
https://doi.org/10.1097/00005768-200101000-00024
- Identifier
- ISSN:0195-9131
- Abstract
- Purpose: The purpose of the present study was to profile the aerobic and anaerobic energy system contribution during high-speed treadmill exercise that simulated 200-, 400-, 800-, and 1500-m track running events. Methods: Twenty highly trained athletes (Australian National Standard) participated in the study, specializing in either the 200-m (N = 3), 400-m (N = 6), 800-m (N = 5), or 1500-m (N = 6) event (mean VO2 peak [mL·kg-l-min-1] ± SD = 56 ± 2, 59 ± 1, 67 ± 1, and 72 ± 2, respectively). The relative aerobic and anaerobic energy system contribution was calculated using the accumulated oxygen deficit (AOD) method. Results: The relative contribution of the aerobic energy system to the 200-, 400-, 800-, and 1500-m events was 29 ± 4, 43 ± 1, 66 ± 2, and 84 ± 1% ± SD, respectively. The size of the AOD increased with event duration during the 200-, 400-, and 800-m events (30.4 ± 2.3, 41.3 ± 1.0, and 48.1 ± 4.5 mL·kg-1, respectively), but no further increase was seen in the 1500-m event (47.1 ± 3.8 mL·kg-1). The crossover to predominantly aerobic energy system supply occurred between 15 and 30 s for the 400-, 800-, and 1500-m events. Conclusions: These results suggest that the relative contribution of the aerobic energy system during track running events is considerable and greater than traditionally thought.
- Publisher
- Lippincott Williams & Wilkins
- Relation
- Medicine and Science in Sports and Exercise Vol. 33, no. 1 (2001), p. 157-162
- Rights
- Copyright Lippincott Williams & Wilkins
- Rights
- This metadata is freely available under a CCO license
- Subject
- 1106 Human Movement and Sports Science; Anaerobic capacity; Maximal accumulated oxygen deficit; Oxygen demand; Submaximal; Supramaximal
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