Eligibility Module
The Eligibility Module contains detailed information about who can participate in the clinical trial. This includes eligibility criteria, age restrictions, gender requirements, healthy volunteer status, and study population descriptions, helping researchers understand who is eligible to participate in the study.
Eligibility Module path is as follows:
Study -> Protocol Section -> Eligibility Module
Eligibility Module
Ignite Creation Date:
2025-12-24 @ 9:45 PM
Ignite Modification Date:
2025-12-24 @ 9:45 PM
NCT ID:
NCT04641832
Eligibility Criteria:
Inclusion Criteria:
For Chronic THC User Group
1. being between 18 to 26 years of age
2. self-reported chronic THC use (average use once per week but not dependent)3) at least 3 years of soccer heading experience.
For Non-User Cohort
1. being between 18 to 26 years of age
2. self-reported non cannabis use in the past 6 months
3. at least 3 years of soccer heading experience
Exclusion Criteria:
1. any head, neck, or face injury in the 1 year prior to the study (e.g., concussion, eye injury);
2. history of vestibular, ocular, or vision dysfunction (e.g., macular degeneration)
3. currently taking any medications affecting balance (e.g., antibiotics)
4. pregnancy
5. HIV
6. any neurological disorders (e.g., seizure disorders, closed head injuries with loss of consciousness greater than 15 minutes, CNS neoplasm, spinal cord injury/surgery, history of stroke)
7. hypertension, cardiac arrhythmia, or pulmonary disease
8. lower extremity injury that would prohibit performing soccer headings
9. metal implants in the head
Session-specific exclusion criteria will include:
10. used cannabis within the last 72 hours (verified by saliva cannabis test before intervention)
11. slept less than 4 hours before the 1st and 2nd test day (verified by screening questionnaire)
12. drank any alcoholic drinks or used recreational drugs 72 hours before the 1st test day and during the study period.
13. drank more than 3 cups of coffee before any test sessions
14. glasses are prohibited (contact lenses are okay) for safety purpose for the heading intervention
Healthy Volunteers:
True
Sex:
ALL
Minimum Age:
18 Years
Maximum Age:
26 Years
Study:
NCT04641832
Study Brief:
Protocol Section:
NCT04641832