ISSN - Conference Call for Poster Presentations

Call for Abstracts (Poster Presentations) at  21st Annual ISSN Conference @ Bonita Springs FL, June 18-20, 2024.  

Location of the Conference: Hyatt Regency Coconut Point Resort and Spa, Bonita Springs FL.

Click here to submit your abstract!

All Abstracts will be published in the Journal of the International Society of Sports Nutrition.  See below for an example of a properly formatted abstract.

You will be notified of acceptance or rejection within 1-2 weeks or less after we receive your Abstract. We accept original investigations only. The topics of the original investigations may be related to sports nutrition, exercise training, PEDs, sports supplements, foods, beverages, muscle fatigue, hydration, body composition, diet, etc.

Poster Size: 4 feet wide x 3 feet high or 1.2 meters wide x 0.9 meters high  (DO NOT EXCEED THIS SIZE). 

ISSN Fellow Sponsor: If you can get an ISSN Fellow to sponsor your Poster, the Abstract will be preferentially reviewed. The FISSN sponsor must be listed as an author on the Poster. 

If you have any conflicts of interest, please denote that in the acknowledgements. See this page for details: 


An acute, single-dose treatment of Caffeine, TeaCrine, and Dynamine improves neurophysiological and performance measures of e-gamers

Casandra Evansa,b, Jose Antoniob, Amani Khanc, Samir Sakariac, Alexandra Vanderkleyc, Maria Berracolesb, Jose Rojasb, Juan Carlos Santanad, Jason Curtise, Joseph Petruzellib, Tony Riccib, and Jaime L. Tartarc

aNutrition/Exercise and Sports Sciences, Rocky Mountain University of Health Professions, Ft. Lauderdale, USA; bNova Southeastern University, Exercise and Sport Science, 3301 College Ave, Ft Lauderdale, FL, USA; cNova Southeastern University, College of Psychology, 3301 College Ave, Ft Lauderdale, FL, USA; dInstitute of Human Performance, Boca Raton, FL, USA; eExercise and Sports Science, Keiser University, West Palm Beach, FL, USA

Corresponding author: [email protected]

Background: The primary aim of this study was to evaluate the effects of a combined Caffeine + TeaCrine® + Dynamine™ on measures of neurophysiological activity, as well as performance, during first-person shooter games in e-gamers.

Methods: Using a randomized double-blinded, crossover design, we assessed the effects of an acute, single-dose treatment of Caffeine (200 mg) vs. Caffeine (200 mg) + TeaCrine (10 mg) + Dynamine (50 mg) (CTD) vs. Placebo (maltodextrin). Each participant was tested under all three conditions 1 week apart. Baseline and post-dose measures were tested 1 hour apart. Participants [n = 49 male (24.4 ± , 4.5 yr)] were amateur e-gamers who played a first-person video game at least 10 hrs/week. Gaming performance was assessed through a series of first-person shooter training games through AIMLAB (State Space Labs, Inc.) These included Reflex Shot (RS) Standard, Speed, and Precision. Neurophysiological activity was captured when participants played three games through a single-channel EEG (Enchanted Wave, LLC) with the electrode positioned at the prefrontal-lobe location (Fp1).

Results: In the RS Standard game, analyses of targets showed that while all conditions increased pre- and post-dose, the CTD condition shot significantly more targets (i.e. had better performance) relative to both caffeine (p = 0.01) and placebo (p = 0.03) post-dose. In the RS Speed game, there was a significantly greater number of targets shot in the post-dose testing compared to the pre-dose testing in Caffeine (p = 0.01) and Placebo (p = 0.02). There were significantly more targets hit post-dose compared to pre-dose in the Caffeine (p = 0.03) and CTD (p = 0.004). Only the Placebo condition had a significant increase in the kills per second post-dose compared to pre-dose (p = 0.04), and the CTD group had significantly fewer total kills post-dose compared to pre-dose (p = 0.02). In the RS Precision game, all conditions significantly improved on the number of targets in the post-dose testing compared to the pre-dose testing (all p-values < 0.05). While the caffeine condition took significantly more shots post-dose compared to pre-dose, only the CTD condition significantly improved the number of kills per second post-dose (p = 0.01). EEG data collected concomitantly with game playing showed that the CTD condition resulted in significantly lower alpha power compared to the Placebo condition (p = 0.02). The CTD group also showed increased theta activity post-dose during game playing compared to both the Placebo (p < 0.001) and Caffeine (p < 0.001) conditions.

Conclusions: CTD appears to improve overall shooting gaming performance and neurophysiological measures of cognitive activity compared to Caffeine and Placebo. Collectively, these findings suggest that CTD assists with speed-accuracy tradeoffs where caffeine-only can lead to erratic play; thus, CTD may be particularly beneficial for shooting precision. The EEG data support this notion since the CTD exhibited lower alpha power, suggesting increased cognitive flexibility and arousal, and higher theta power, suggesting greater cognitive control and decision making under pressure.

Acknowledgments. This research was funded by Compound Solutions (Carlsbad, CA). The funder played no role in data acquisition, data management, nor data interpretation.