CREATINE INGESTION INCREASES ANAEROBIC CAPACITY AND MAXIMUM ACCUMULATED OXYGEN DEFICIT

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Authors
  1. Cheung, S.S.
  2. McLellan, T.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The purpose of this study was to test the hypothesis that ingestion of creatine monohydrate increases anaerobic exericse capacity, as reflected by the maximal accumulated oxygen deficit (MAOD). Subjects were assigned, double-blind, to placebo (PL, n = 12) or creatine (CR, n = 14) groups and ingested 5-g doses 4 times daily of artificial sweetener or artifically sweetened creatine monohydrate, respectively, for 5 days. On a separate day subjects exercised to exhaustion at 125% VO2max. After two familiarization trials, MAOD was again determined before treatment, after 5 days of PL or CR treatment, and 7 days later. MAOD increased after CR treatment from 4.4 + or - 0.31 to 4.41 + or - 0.34 L (p < .001) and remained elevated for another 7 days (4.31 + or - 0.33, p < .001). Time to exhaustion also increased in CR from 130 + or - to 141 + or - 7 s (p < .01) and remained increased for another 7 days (139 + or - 8 s, p < .01). These data demonstrate that ingesting creatine monohydrate for 5 days increases the MAOD, and is likely to have an ergogenic effect on supramaximal exercise performance that persists for at least a week after treatment.
Keywords
Ergogenic;Oxygen deficit
Report Number
DCIEM-96-P-11 — Research Paper
Date of publication
17 Jun 1997
Number of Pages
7
DSTKIM No
98-00412
CANDIS No
507333
Format(s):
Hardcopy;Document Image stored on Optical Disk

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