Motivational, Affective and Performance Effects of Caffeine Supplementation

Conditions: Caffeine; Affect; Goals Interventions: Dietary Supplement: Caffeine; Dietary Supplement: Placebo; Other: No substance Sponsors: Jagiellonian University; The Jerzy Kukuczka Academy of Physical Education in Katowice; University School of Physical Education, Krakow, Poland Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials