Perceptual characteristics of nutritional supplements determine the expected effectiveness in boosting strength, endurance, and concentration performances

Attila Szabo, Márk Bérdi, Köteles Ferenc, György Bárdos

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The aim of this work was to examine the link between the physical-perceptual characteristics of nutritional supplements and their expected effectiveness in enhancing sport performance. Participants (n = 267) ranked nine images of fictive nutritional supplements, varying in shape, color, and route of administration (e.g., pill, powder, lotion, etc.), in ranked- order of expected effectiveness. They performed the task three times, 1) for strength, 2) endurance, and 3) for concentration. Results have revealed that the perceived effectiveness of the supplements was statistically significantly different for the three types of performances (p v .001). A significant interpersonal variability was observed in the ranking-order of the supplements. The findings reveal that perceptual characteristics of 'believed to be nutritional supplements', aimed at sport performance enhancement, influence their perceived effectiveness. Future inquiries in sport nutrition should examine the relationship between expected and experienced effectiveness of various nutritional supplements in enhancing sport performance.

Original languageEnglish
Pages (from-to)624-628
Number of pages5
JournalInternational Journal of Sport Nutrition and Exercise Metabolism
Volume23
Issue number6
DOIs
Publication statusPublished - Dec 2013

Keywords

  • Baseline
  • Belief
  • Expectancy
  • Placebo
  • Subjective

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Orthopedics and Sports Medicine
  • Nutrition and Dietetics

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