The effects of Guarana (Paullinia cupana) supplementation on the cognitive performance of young healthy adults – a Systematic Review
e | 13 set 2019
INFORMAZIONI SU QUESTO ARTICOLO
Pubblicato online: 13 set 2019
Pagine: 171 - 182
Ricevuto: 17 apr 2019
Accettato: 17 lug 2019
DOI: https://doi.org/10.2478/gp-2019-0015
Parole chiave
© 2019 Fanaras Konstantinos, Dr. Reinhard Heun, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
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PICOS, Duration and Control groups of Individual Studies Used
| REFERENCE | STUDY TYPE | POPULATION | INTERVENTION | COMPARISON | OUTCOME | DURATION | CONTROL |
|---|---|---|---|---|---|---|---|
| Double Blind Randomized Controlled Trial | 30 Healthy participants (mean age 28); 6 males; 24 females | 500mg of guarana | 12.5mg of caffeine; placebo | Guarana’s effects on cognition and mood | 1 familiarization visit and 2 experimental visits conducted with a 24h difference. | 10 participants used caffeine; 10 participants placebo | |
| HASKELL C.F. et al (2007) | Double-Blind, Counterbalanced, Placebo- Controlled Study | 26 Healthy participants (mean age 21.38; 8 males, 18 females) 5 participants excluded | 37.5mg/ 75mg/ 150mg/ 300mg/ guarana capsules | Placebo | Behavioral and Cognitive effects of Guarana supplementation | 1 training session and 5 study days | Each participant was his own control |
| KENNEDY DO et al (2004) | Double-Blind, Counterbalanced, Placebo- Controlled Study | 28 Healthy participants (mean age 21.4; 9 males, 19 females) | 75mg of Guarana; 200mg of Ginseng; 75mg guarana/ 200mg ginseng | Placebo | Cognitive and Mood effects of guarana supplementation. | 1 familiarization day; 4 experimental days all 7 days apart | Each participant was his own control |
| KENNEDY DO et al (2008) | Double-Blind, Randomized, Placebo-Controlled, Parallel Groups Study | participants 130 Healthy (mean age 20.98; 60 males, 70 females) 3 participants were later excluded from the study. | Vitamin/Mineral/ Guarana (222.2mg) capsules | Placebo | The acute effects of guarana on cognition. | 1 familiarization day and 14 days later, 1 experimental day | 64 participants on placebo |
| POMPORTES L et al (2014) | Randomized, Double-Blind Crossover Design | 56 Healthy participants (mean age of males 27.7; mean age of females 29.5; 32 males, 24 females) | Vitamin/Mineral/ Guarana (300mg) /Ginseng (100mg) supplement | Caffeine supplement; Placebo | Cognitive performance after guarana supplementation. | 3 separate sessions with at least 48h difference. | Each participant was his own control |
| POMPORTES L et al (2017) | Randomized Controlled Counterbalanced Cross-over Study | 24 Physically active participants (mean age 26; 16 males, 8 females) | Guarana complex (37.5 mg of guarana+ 12.5 mg ginseng +22.5 mg Vitamin C | Carbohydrate complex/ 67mg Caffeine/ Placebo | Cognitive performance during a 40-min submaximal exercise | 1 preliminary session; 1 training session; 4 experiment-al sessions (2 per week) | Each participant was his own control |
| SCHOLEY A et al (2013) | Double-Blind, Placebo- Controlled, Randomized, Balanced Crossover Design | 20 Healthy participants (mean age 28.35; 8 males, 12 females) + 5 Healthy participants (mean age 28.4) in fMRI testing | Multivitamin supplement with 222.2mg of guarana | Multivitamin supplement without guarana; placebo | Effects of multivitamin/ guarana preparation on cognitive performance and fMRI imaging. | 1 practice visit and 3 study days | Each participant was his own control |
| Placebo- Controlled, Double-Blind, Randomized, Balanced Cross- Over Study | 40 Healthy participants (Age: 21.4 ± 3.0 years; 40males, 0 females) | Multivitamin and mineral complex with guarana (222.2 mg) | Placebo | Effect of multivitamin preparation with guarana on the cognition and mental fatigue after fasted exercise | Visit 1; (at least after 48h) Visit 2; (at least after 48h) Visit 3; (at least after 7 days) Visit 4. | Each participant was his own control | |
| WHITE DJ et al (2017) | Double-Blind, Placebo-Controlled, Randomized, Balanced Crossover Design Study | 20 Healthy participants (mean age 28.35) of which 2 were excluded from SSVEP | Multivitamin supplement with guarana (222.2 mg) | Multivitamin supplement without guarana; placebo | Cognitive effects of multivitamins with/ without guarana and fMRI imaging | 1 familiarization visit and 3 testing visits. | Each participant was his own control |