Do Glucose and Caffeine Nasal Sprays Influence Exercise and/or Cognitive Performance?
| Autor: | Kevin De Pauw, Angelica Valente, Romain Meeusen, Robert B. Lettan, Andres E. Carrillo, Kim Taehee, Bart Roelands, Lieselot Decroix, Jeroen Van Cutsem |
|---|---|
| Přispěvatelé: | Human Physiology and Sports Physiotherapy Research Group, Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physical Therapy, Spine Research Group, Advanced Rehabilitation Technology & Science |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Physical Therapy Sports Therapy and Rehabilitation Performance-Enhancing Substances Athletic Performance Placebo 030226 pharmacology & pharmacy Caffeine/administration & dosage 03 medical and health sciences chemistry.chemical_compound Cognition 0302 clinical medicine Time trial Double-Blind Method Caffeine medicine Cognition/drug effects Humans Orthopedics and Sports Medicine Effects of sleep deprivation on cognitive performance Insufflator Wingate test Wingate 030229 sport sciences Nasal Sprays Athletic Performance/physiology Glucose/administration & dosage Glucose Nasal spray chemistry Performance-Enhancing Substances/administration & dosage Anesthesia Stroop Test Physical therapy Exercise Test young adult Stroop Psychology Stroop effect |
| DOI: | 10.1123/ijspp.2016-0598 |
| Popis: | Introduction:Nasal spray (NAS) containing caffeine (CAF) or glucose (GLUC) activates sensory(motor) cortices. Purpose:To investigate the influence of CAF or GLUC NAS on exercise and cognitive performance. Methods:Eleven male subjects (age 22 ± 2 y) performed a maximal cycle test and 2 familiarization and 3 experimental trials. Each trial included a 30-s Wingate test and a 30-min time-trial (TT) performance test interspersed by 15 min of rest. Before and after each exercise test a Stroop task was conducted. Placebo NAS with or without CAF or GLUC was provided before each exercise session and at each completed 25% of the TT. Exercise-performance, physiological, and cognitive measures were obtained. Magnitude-based inferences determined the likelihood that NAS solutions would be beneficial, trivial, or negative to exercise-performance measures based on the smallest worthwhile effect. Physiological and cognitive measures were analyzed using (non)parametric tests (P < .05). Results:GLUC NAS substantially increased the average power output during the TT (very likely beneficial: 98%). No further worthwhile exercise-performance enhancements were found for both substances. In addition, no significant differences in physiological and cognitive measures were observed. In line with mouth rinsing, GLUC was shown to substantially enhance endurance performance, probably due to the activation of the olfactory pathway and/or extra-oral sweet-taste receptors. Conclusion:GLUC NAS enhances endurance performance, which indicates a novel administration route. The higher activity in sensory brain cortices probably elicited the ergogenic effect. However, no further physiological and cognitive changes occurred, indicating that higher doses of substrates might be required. |
| Databáze: | OpenAIRE |
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