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NCT Number: NCT07540559

The Effect of Coffee Consumption on Balance

This study aims to investigate the effects of daily coffee consumption on balance performance in healthy university students. Caffeine is a widely consumed psychoactive substance that may influence neuromuscular control, reaction time, and postural stability. Participants will be categorized based on their habitual caffeine intake levels, and balance performance will be assessed using standardized clinical tests. The results are expected to contribute to the understanding of the relationship between caffeine consumption and balance performance.

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Key information

Conditions

Balanced Coffee Consumption Postural; Defect

Age range

18 year–25 year

Sex eligibility

All sexes

Study type

Observational

About this study

Caffeine is one of the most commonly consumed psychoactive substances worldwide, primarily ingested through coffee. It acts as a central nervous system stimulant and has been shown to affect alertness, reaction time, and muscular performance. These effects may also influence postural control and balance mechanisms.Balance is a complex function that depends on the integration of visual, vestibular, and proprioceptive systems. Any factor that affects these systems may alter both static and dynamic balance performance. Therefore, examining the effects of daily caffeine consumption on balance is important for both clinical practice and daily life activities.The aim of this study is to evaluate whether different levels of habitual coffee consumption have a significant effect on balance performance in healthy individuals. Participants will be grouped into low, moderate, and high caffeine consumption categories based on their daily intake.Balance performance will be evaluated using standardized assessment tools, including the Y Balance Test, Tandem Walking Test, Timed Up and Go (TUG) Test, and Single Leg Stance Test. The findings of this study are expected to provide evidence regarding the effects of caffeine on neuromuscular control and postural stability.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy adult
  • Between 18-25 years of age
  • University students
  • Body Mass Index (BMI) < 25 kg/m²
  • Voluntary participation in the study

Exclusion criteria

  • Smoking
  • Presence of any systemic, orthopedic, or cardiopulmonary condition that may prevent participation in exercise tests
  • Diagnosed respiratory, vascular, or cardiovascular disease

Treatment and study plan

Daily coffee consumption (self-reported exposure)

Other

Habitual coffee consumption is recorded using a questionnaire and participants are classified into exposure groups (low, moderate, high); no active intervention is performed.

Primary outcomes

  1. Single Leg Stance Test

    Time frame: Single assessment at baseline

    The Single Leg Stance Test will be used to evaluate static balance. Participants will be asked to stand on one leg for as long as possible without support. The duration will be recorded in seconds.

  2. Y Balance Test

    Time frame: Single assessment at baseline

    The Y Balance Test will be used to evaluate dynamic balance. Participants will reach in anterior, posteromedial, and posterolateral directions while maintaining single-leg stance. Reach distances will be measured in centimeters.ere measured in centimeters.

  3. Timed Up and Go (TUG) Test

    Time frame: Single assessment at baseline

    The Timed Up and Go (TUG) test will be used to assess functional mobility and dynamic balance. Participants will be instructed to stand up from a chair, walk 3 meters, turn around, walk back, and sit down. The total time to complete the task will be recorded in seconds.

  4. Tandem Walking Test

    Time frame: Single assessment at baseline

    The Tandem Walking Test will be used to assess dynamic balance. Participants will be instructed to walk in a heel-to-toe manner along a straight line. Performance will be recorded based on time and/or number of errors.

Secondary outcomes

  1. Borg Rating of Perceived Exertion (RPE) Scale

    Time frame: Single assessment at baseline

    The Borg Rating of Perceived Exertion (RPE) Scale will be used to assess the participant's perceived level of exertion during testing. Participants will rate their effort on a scale ranging from 6 (no exertion) to 20 (maximal exertion).

Study contacts

Contact information is provided by the study sponsor or research team.

Esra Pehlivan, PhD

CONTACT

[email protected]

+902167778777

Tugba Ceren Yamak

CONTACT

[email protected]

Sponsors and collaborators

Lead sponsor

Saglik Bilimleri Universitesi

Other

Registry information

Important dates

Study start
2026
Primary completion
2027
Study completion
2027
First posted
Apr 20, 2026
Registry last updated
Apr 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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