Effect of a liquid multivitamin/mineral supplement on anaerobic exercise performance.
The purpose of this study was to determine if supplementation with a liquid multi-vitamin/mineral would improve anaerobic exercise performance. Fourteen resistance-trained men performed a 30-second cycle sprint and one set of squat exercise on 2 separate days before and following 8 weeks of supplementation with either a liquid multi-vitamin/ mineral or a placebo. Heart rate, perceived exertion, blood lactate, peak and mean power, and rate of fatigue were determined for all tests. No differences were noted for any variable (P > 0.05). When controlling for presupplementation values, however, a decreased rate of fatigue was noted for both exercise tests following the multi-vitamin/mineral supplementation. These data suggest that in resistance trained men consuming a nutritionally sound diet, supplementation with a liquid multi-vitamin/mineral does not favorably impact most anaerobic exercise performances. Such supplementation, however, may result in a minor decreased rate of fatigue. It appears that, in terms of improved short duration anaerobic exercise performance, supplemental micronutrients may not be efficient ergogenic agents for well-trained individuals consuming an adequate diet.
Fry
Andrew C
AC
Human Performance Laboratories, The University of Memphis, Memphis, Tennessee 38152, USA. afry@memphis.edu
Bloomer
Richard J
RJ
Falvo
Michael J
MJ
Moore
Chris A
CA
Schilling
Brian K
BK
Weiss
Lawrence W
LW
D000328:Adult; D004032:Diet; D019587:Dietary Supplements; D004311:Double-Blind Method; D015444:Exercise / Q000502:physiology*; D005221:Fatigue / Q000517:prevention & control; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D014131:Trace Elements / Q000627:therapeutic use*; D014815:Vitamins / Q000627:therapeutic use*; D014891:Weight Lifting / Q000502:physiology
D014131:Trace Elements; D014815:Vitamins; D019344:Lactic Acid