Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Purpose: investigators explored the effect of 3 mg/kg of caffeine supplementation on the cognitive ability and shooting performance of trained e-sports players. Methods: investigators recruited nine e-sports players who had received professional training in e-sports and had won at least eighth place in national-level e-sports shooting competitions. After performing three to five familiarization tests, investigators employed a randomized crossover design to divide participants into a caffeine trial (CAF) and a placebo trial (PL). The CAF group took capsules with 3 mg/kg of caffeine, whereas the PL group took a placebo capsule. After a 1-h rest, the Stroop task, visual search ability test, and the shooting ability test were conducted.
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| caffeine | Experimental | capsules with 3 mg/kg of caffeine |
|
| placebo | Placebo Comparator | The placebo capsule contained flour |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| caffeine | Behavioral | we employed a randomized crossover design to divide participants into a caffeine trial (CAF) and a placebo trial (PL). The CAF group took capsules with 3 mg/kg of caffeine, whereas the PL group took a placebo capsule. After a 1-h rest, the Stroop task, visual search ability test, and the shooting ability test were conducted. |
| Measure | Description | Time Frame |
|---|---|---|
| Stroop task | The color-word Stroop task and visual search test were conducted using Psych/Lab for Windows. The reaction time (millisecond) were recorded. | 1 hour after intervention |
| visual search test | A total of 80 search displays were presented in 5 minutes. In each display, 5, 10, 15, or 20 -Tests were presented. The reaction time (millisecond) were recorded. | 1 hour after intervention |
| Measure | Description | Time Frame |
|---|---|---|
| aim trainer | Participants used the mouse to shoot the electronic targets on the computer screen. The completed time (second) were recorded. | 1 hour after intervention |
Not provided
Inclusion Criteria:
Exclusion Criteria:
male subjects
Not provided
Not provided
Not provided
Not provided
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| National Taiwan University of Sport | Taichung | 404 | Taiwan |
Not provided
| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot | Yes | No | No | Study Protocol | Aug 22, 2022 | Aug 24, 2022 | Prot_000.pdf |
Not provided
| ID | Term |
|---|---|
| D002110 | Caffeine |
| ID | Term |
|---|---|
| D014970 | Xanthines |
| D000470 | Alkaloids |
| D006571 | Heterocyclic Compounds |
| D011688 | Purinones |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
|
| D011687 |
| Purines |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |