The Placebo Effect of Ergogenic Aids: Sport Performance, Subjective Feelings and Potential Side-Effects

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Sports Nutrition".

Deadline for manuscript submissions: 25 August 2024 | Viewed by 2892

Special Issue Editor


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Guest Editor
Sports Training Laboratory, Faculty of Sports Sciences, University of Castilla La Mancha, 45071 Toledo, Spain
Interests: caffeine; energy drinks; placebo effect; exercise performance; running performance; track and field
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Special Issue Information

Dear Colleagues,

The placebo effect in sports nutrition (the improvement of sport performance derived from the belief of having ingested an ergogenic substance) has been gaining special interest in recent years. The possibility of improving physical performance by administering a harmless substance offers a remarkable opportunity for coaches and sport nutritionists.

Only a few substances have demonstrated solid effects in improving sports performance. Substances such as creatine, bicarbonate or caffeine have been shown to be effective in improving performance in several sports scenarios, while other substances have shown contradictory effects in current research.  However, the intake of some of these substances may present certain adverse effects that interfere with sports performance and/or the health of the athlete, so the suitability of the use of these substances should be assessed on a cost–benefit basis, and the doses and timing of use should be adapted to the individual needs of the athlete. For example, insomnia derived from caffeine ingestion could diminish sport performance in the subsequent training or competitive session.

Several studies have shown that the placebo effect achieves effects of a similar magnitude as the ergogenic substances studied, so the clever use of placebos could be an effective strategy to improve sport performance at different points in the sport season.

As the Guest Editor of the Special Edition ‘The Placebo Effect of Ergogenic Aids: Sport Performance, Subjective Feelings and Potential Side-effects’, I invite you to submit a manuscript to Nutrients, one of the most read and cited research journals in the field of Sports Nutrition. The objective of this Special Issue is to bring together researchers in the fields of sports and exercise nutrition to explore the placebo effect for the enhancement of exercise performance, with a particular focus on sports scenarios. This could include, for example, the influence of the placebo effect on endurance, strength or sprint performance, and/or subjective perceptions (perceived effort, activeness, etc.). Within this Special Issue, experimental research, systematic and meta-analysis and narrative reviews are welcome to advance our knowledge of the placebo effect and its successful use in sports.

Dr. Juan J. Salinero
Guest Editor

Manuscript Submission Information

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Keywords

  • placebo effect
  • ergogenic aids
  • sport performance
  • endurance performance
  • strength performance
  • sprint performance
  • perceived effects
  • side effects

Published Papers (1 paper)

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Research

10 pages, 613 KiB  
Article
Belief That Caffeine Ingestion Improves Performance in a 6-Minute Time Trial Test without Affecting Pacing Strategy
by Fernando Valero, Fernando González-Mohíno and Juan José Salinero
Nutrients 2024, 16(2), 327; https://doi.org/10.3390/nu16020327 - 22 Jan 2024
Cited by 1 | Viewed by 2372
Abstract
This study aimed to analyze the placebo effect associated with caffeine ingestion on running performance. Methods: Thirteen recreationally trained males in long-distance running (age: 38.5 ± 11.9 years, 11.0 ± 8.8 years of running experience) performed a 6 min time trial test in [...] Read more.
This study aimed to analyze the placebo effect associated with caffeine ingestion on running performance. Methods: Thirteen recreationally trained males in long-distance running (age: 38.5 ± 11.9 years, 11.0 ± 8.8 years of running experience) performed a 6 min time trial test in each experimental condition (caffeine-informed/placebo ingested (placebo) and non-ingested (control)) separated by 7 days. The total distance covered was measured, and partial times of each 400 m were used to analyze the pacing strategy. Heart rate and kinematic variables were recorded for each split. In addition, the rate of perceived exertion and prevalence of caffeine side effects was measured using questionnaires. Results: Placebo ingestion improved running performance in the 6 min time trial test (1668 ± 139 m placebo vs. 1642 ± 158 m control, t = 2.49; p = 0.03; moderate ES = 0.69), while pacing, heart rate, RPE, and kinematic variables were similar between conditions (p > 0.05 in all cases). Minor side effects were reported. Conclusions: Beliefs of caffeine ingestion can improve running performance at speeds around maximal aerobic speed in recreationally trained runners without affecting pacing strategy so this “nutritional” strategy could be useful in competition scenarios. As a practical application, recreationally trained runners could improve ≈5 s in 1500 m or mile competitions. Full article
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