Hand Reaction Speed and Manual Dexterity & Caffeine Dependence

Saglik Bilimleri Universitesi

Status: Enrolling

Conditions: Healthy

Treatments: Other: Low Caffeine Consumption; Other: High Caffeine Consumption

Study type: Observational

Funder types: Other

Identifiers

NCT07032454

Caffeine_1

Details and patient eligibility

About

This study aims to evaluate the effects of caffeine dependence on hand reaction time and fine motor skills in university students. By comparing individuals with high and low daily caffeine intake, the research will assess whether excessive caffeine consumption is associated with impaired upper extremity performance. Reaction speed will be measured using the Nelson Hand Reaction Time Test, and manual dexterity will be assessed with the Purdue Pegboard Test.

Full description

This observational study investigates the effects of caffeine dependence on hand reaction time and manual dexterity in young adults. Caffeine is a widely consumed psychoactive substance, and its excessive intake may influence motor and cognitive performance. University students aged 18 to 30 are recruited and divided into two groups based on daily caffeine consumption and diagnostic criteria from DSM-5/ICD-10: a high caffeine group (≥300 mg/day) and a low caffeine group (20-200 mg/day). Data are collected using the Caffeine Consumption Frequency Questionnaire and behavioral assessments conducted in a controlled laboratory environment. Hand reaction speed is measured with the Nelson Hand Reaction Time Test, while manual dexterity is assessed using the Purdue Pegboard Test. Sociodemographic data and caffeine consumption are gathered via online forms. The aim is to determine whether excessive caffeine intake is associated with changes in reaction time and fine motor skills. Statistical analyses include normality testing, group comparisons, and correlation analyses, with significance set at p<0.05. This study may provide new insights into the neuromotor effects of caffeine consumption in a university population.

Enrollment: 47 estimated patients

Sex: All

Ages: 18 to 30 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age 18 to 30 years
• Currently enrolled university students

Exclusion criteria

• Neurological, vascular, orthopedic, acute or chronic conditions affecting hand function
• History of wrist surgery or visible hand deformity

Trial design

47 participants in 2 patient groups

High Caffeine Group (≥300 mg/day)

Description:

Individuals consuming 300 mg or more of caffeine daily, meeting DSM-5/ICD-10 criteria for caffeine dependence.

Treatment:

Other: High Caffeine Consumption

Low Caffeine Group (≤200 mg/day)

Description:

Individuals consuming caffeine within recommended levels (20-200 mg/day).

Treatment:

Other: Low Caffeine Consumption