Effects of caffeine on muscle twitching in healthy adults

Fasciculations in Healthy Adults After Consumption of Caffeine: an Ultrasound Study

Not applicable Interventional Zurich Regional Health Center · NCT05977920

This study is testing how caffeine affects involuntary muscle twitches in healthy adults aged 20-35 and 35-50.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years to 50 Years
SexAll
SponsorZurich Regional Health Center Academic / other
Locations1 site (Wetzikon, Zürich)
Trial IDNCT05977920 on ClinicalTrials.gov

What this trial studies

This study investigates the occurrence of muscle fasciculations, which are involuntary muscle contractions, in healthy adults after consuming caffeine. It aims to compare the frequency of these fasciculations in the muscles of the arms and legs across two age groups: 20-35 years and 35-50 years. A total of 52 participants will be recruited, with 26 individuals in each age group, to assess the differences in fasciculation occurrence using ultrasound techniques. The study will utilize a Fisher's exact test to analyze the data with a significance level of 0.05.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy adults aged 20 to 50 years without any clinical neurological symptoms or other significant health issues.

Not a fit: Patients with existing neurological disorders or other serious health conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of muscle responses to caffeine, potentially informing dietary recommendations for athletes and individuals with neuromuscular concerns.

How similar studies have performed: While there have been studies on fasciculations in healthy adults, this specific investigation into the effects of caffeine on muscle twitching is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion criteria:

* Healthy subjects (male/female)
* age 20-50 years old

Exclusion criteria:

* Clinical neurological symptoms
* Clinical signs for Neuropathy
* Clinical signs for Myopathy
* Clinical signs for Vasculitis
* Clinical signs for heart disease
* Clinical signs for gastric or duodenal ulcera
* Any medicine

Where this trial is running

Wetzikon, Zürich

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Neurologic Symptoms
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.