International Journal of Exercise Science 15(5): 341-357, 2022. The Braverman Nature Assessment (BNA) is intended to determine the dominant monoamine neurochemical that drives an individual’s temperament and behavior. The measure has been colloquially praised for the ability to determine the most effective exercise protocols for an individual based on their “dominant nature.” This study seeks to examine the proposed relationship between the Braverman Natures and exercise behavior. Seventy-three adults (57 females) between ages 18-65 (mean = 26 years) completed an online survey consisting of the BNA, Big Five Personality Inventory (BFI), and Aerobics Center Longitudinal Study Physical Activity Questionnaire (ACLSPAQ). All Natures showed significant correlations to unique sets of personality traits (BFI). Dopamine and Serotonin Nature scores (via BNA) showed positive correlations to total physical activity (PA)measures. Serotonin Nature had positive correlation with participation in resistance exercise (r = .36, p < .01) and showed the strongest correlations to PA participation. Dopamine was not associated with Extraversion as predicted; however, showed positive correlations to vigorous intensity exercise (r = .26, p < .05). The Natures demonstrate some low to moderate correlations between neurochemical scores and exercise behaviors such as preference for various exercise modalities. There is preliminary evidence to suggest that the BNA may be a useful tool for exercise prescription based on correlations between personality and exercise behavior found in this study. The results do not support colloquial literature on the use of BNA in exercise prescription.

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