Document Type : Research Paper
Author
Abstract
The aim of present research was to study the amount and kind of dietary supplements consumption in Iranian athletes participating in the London 2012 Olympic Games based on a theory of planned behavior. Iranian athletes (n=42) participating in the 2012 London Olympic game were included in the study. To data collection, two questionnaires (one sports supplements questionnaire with 4 scales and researcher made theory of planned behavior questionnaire) were used. All analyzes were performed by the SPSS16 and AMOS soft wares. To determine the components of the Normal fit index, the chi-square, NFI and RMSEA were used. Main source of supplemental bidder among Iran's Olympic athletes was nutritionist (43%). for main reasons of athletes for supplement consumption, increased speed and agility (48%) and increased strength and power (47%) were reported. The greatest consumed supplement in athletes was order B-complex (92%). However, unlike previous studies, the mental norms was the most strong predictive index (β = 0/91) while the attitudes (β = 0/23) was the second predictive indicator and perceived behavioral control (β = 0/13) was the weakest predictive index. Lack of meaningfulness in perceived behavioral control is consistent with previous studies but this influence in attitudes is ambiguous. Because it is believed that behavioral intentions strongly is controlled by accepting the norm no with attitudes toward supplements. These findings indicate that in Iran Olympic athletes, the mental norms are probably more important in formation of behavioral intentions for dietary supplements consumption.
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