Raúl Domínguez1,2,3, Pablo Veiga-Herreros4, Antonio Jesús Sánchez-Oliver5, Juan José Montoya6, Juan José Ramos-Álvarez6, Francisco Miguel-Tobal6, Ángel Lago-Rodríguez7, Pablo Jodra8. 1. Centro Adscrito a la Universidad de Sevilla, Escuela Universitaria de Osuna, 41640 Osuna, Spain. 2. Departamento de Educación Física y Deporte, Universidad de Sevilla, 41013 Sevilla, Spain. 3. Studies Research Group in Neuromuscular Responses (GEPREN), University of Lavras, 37200-000 Lavras, Brazil. 4. Faculty of Health Sciences, Universidad Alfonso X El Sabio, 28691 Madrid, Spain. 5. Departmento de Motricidad Humana y Rendimiento Deportivo, Universidad de Sevilla, 41013 Sevilla, Spain. 6. Faculty of Medicine, School of Medicine of Physical Education and Sport, Madrid Complutense University, 28040 Madrid, Spain. 7. Faculty of Health Sciences, Universidad Isabel I, 09004 Burgos, Spain. 8. Faculty of Education Sciences, University of Alcalá, 19001 Guadalajara, Spain.
Abstract
OBJECTIVE: The aim of this study was to investigate the effects of caffeine supplementation on: (i) psychological responses of subjective vitality and mood; (ii) performance through a Wingate test; and (iii) rate of perceived exertion (RPE) reported after a Wingate test. METHODS:Fifteen male participants (22.60 ± 2.16 years) ingested 6 mg·kg-1 ofcaffeine or placebo (sucrose) supplementation in two experimental sessions. After 60 min from supplement intake, participants fulfilled two questionnaires, which measured subjective vitality and mood state, respectively. Subsequently, participants' performance was assessed through a Wingate test, which was followed by measurements of RPE at general, muscular, or cardiovascular level. RESULTS:Caffeine supplementation increased some components of mood, as assessed by profile of mood states (POMS) (tension and vigor dimensions) and subjective vitality profiles, which were followed by a greater maximum power, average power, and lower time needed to reach maximum power during the Wingate test. Moreover, lower RPE, both at muscular and general levels were reported by participants after the Wingate test. CONCLUSIONS: These results suggest that caffeine supplementation exerts positive effects both in psychological and physical domains in trained subjects.
RCT Entities:
OBJECTIVE: The aim of this study was to investigate the effects of caffeine supplementation on: (i) psychological responses of subjective vitality and mood; (ii) performance through a Wingate test; and (iii) rate of perceived exertion (RPE) reported after a Wingate test. METHODS: Fifteen male participants (22.60 ± 2.16 years) ingested 6 mg·kg-1 of caffeine or placebo (sucrose) supplementation in two experimental sessions. After 60 min from supplement intake, participants fulfilled two questionnaires, which measured subjective vitality and mood state, respectively. Subsequently, participants' performance was assessed through a Wingate test, which was followed by measurements of RPE at general, muscular, or cardiovascular level. RESULTS:Caffeine supplementation increased some components of mood, as assessed by profile of mood states (POMS) (tension and vigor dimensions) and subjective vitality profiles, which were followed by a greater maximum power, average power, and lower time needed to reach maximum power during the Wingate test. Moreover, lower RPE, both at muscular and general levels were reported by participants after the Wingate test. CONCLUSIONS: These results suggest that caffeine supplementation exerts positive effects both in psychological and physical domains in trained subjects.
Entities:
Keywords:
Wingate test; ergogenic aid; mood; rate of perceived exertion; sport performance; sport supplement; subjective vitality