Acute Effect of Caffeine-Based Multi-Ingredient Supplement on Reactive Agility and Jump Height in Recreational Handball Players.
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
Pre-exercise caffeine and guarana-based multi-ingredient supplement (MS) consumption | increase | physical performance | - | - | may be more effective for physical performance improvement | #1 |
caffeine and guarana alone | increase | physical performance | - | - | may be less effective for physical performance improvement | #2 |
multi-ingredient supplements | neutral | - | - | - | synergistic effect | #3 |
MS | neutral | reactive agility and jump performance | recreational handball male players | - | acute effect | #4 |
None of the supplements | no change | countermovement jump height | twenty-four male handball players | - | improved | #5 |
Pre-exercise caffeine and guarana-based multi-ingredient supplement (MS) consumption may be more effective for physical performance improvement than caffeine and guarana alone due to the synergistic effect of biologically active ingredients in multi-ingredient supplements. This study aimed to examine the acute effect of MS on the reactive agility and jump performance in recreational handball male players. A randomized, double-blind, crossover study involved twenty-four male handball players (body mass 74.6 ± 8.8 kg; body height 179 ± 7 cm; age 23.8 ± 1.4 years). Participants were tested under three conditions: placebo, caffeine + guarana (CAF + GUA), or MS ingestion 45 min before exercise tests. Participants performed a reactive agility test (Y-shaped test) and countermovement jump (CMJ). None of the supplements improved countermovement jump height (