Medicine & Science in Sports & Exercise:
F-31 Free Communication/Poster - Nutritional Interventions: JUNE 4, 2010 1:00 PM - 6:00 PM: ROOM: Hall C
Ryan, Greg A.1; Sloniger, Mark FACSM2; Corbett, Duane B.3
1The University of Alabama, Tuscaloosa, AL. 2Indiana University of Pennsylvania, Indiana, PA. 3Kent State University, Kent, OH.
(No disclosure reported)
The prevalence of multivitamin use has increased in the United States among nearly every population. The CDC estimates that 40-55% of Americans consume either a dietary or multivitamin supplement daily. Previous research has suggested minimal physical performance benefits among individuals following a multivitamin supplementation (MvS) period in several populations. However, no research exists focusing solely on the potential psychological benefits of MvS.
PURPOSE: To determine the potential psychological benefits from a MvS period among an aerobically untrained college aged population.
METHODS: Twenty-four college students (20.9±2.6yrs) were divided into three groups (placebo, multivitamin, control) and asked to perform a six minute bout of moderate (60%VO2max) followed immediately by a two minute bout of high (85%VO2max) intensity exercise on a cycle ergometer. Perceived exertion scores were recorded every two minutes for three sites (legs, chest/breathing, overall) using the OMNI-RPE Scale. Following a daily three week supplementation period, the participants repeated the six minute bout of exercise at 60% and two minute bout 85% VO2max and RPE was again determined at all three sites. Comparisons of RPE values between the three groups were measured using repeated measures one-way ANOVAs.
RESULTS: No significant differences existed between the RPEs of the three groups at: Legs at two (p =.704), four (p =.813), six (p =.903), or eight (p = 1.000) minutes; Chest/Breathing at two (p =.457), four (p =.457), six (p =.438), or eight (p =.286) minutes; Overall at two (p =.222), four (p =.786), six (p =.838), or eight (p =.386) minutes.
CONCLUSION: Neither the multivitamin nor the placebo group perceived the post-supplementation exercise bout to be easier compared to the control group at any RPE site, time, or intensity.