The Relationship Between Upper Extremity Anthropometric Measurements and Reaction Time

Our study aimed to examine the relationship between upper extremity anthropometric measurements and reaction time in healthy individuals. Also, we aimed to investigate whether there are differences between dominant and non-dominant upper extremity anthropometric measurements and reaction time.

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Key information

Conditions

Healthy Persons

Age range

18 year–30 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Kütahya Health Sciences University

Kütahya, Turkey (Türkiye)

About this study

Reaction time is the time between the presentation of a stimulus and the generation of a response. It consists of various processes including sensory processing, information processing, decision-making, and motor response. Reaction time is also affected by various factors such as task complexity, attention level, and the individual's condition. Muscle strength has been shown to affect reaction time in different age groups. Studies in the literature have determined that reaction time is a factor affecting performance in athletes, individuals with orthopedic diseases, and the elderly. Therefore, identifying the factors affecting reaction time is important. We aimed to investigate the relationship between upper extremity anthropometric measurements and reaction time in healthy individuals.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

Being between 18-30 years old
Not having undergone any surgery on the upper or lower extremities

Exclusion criteria

Treatment and study plan

Primary outcomes

Upper Extremity Anthropometric Measurements

Time frame: Baseline

Upper extremity length measurements were performed twice and the average score was recorded. Total upper extremity, arm and forearm length measurements were taken with a Harpenden anthropometer. Hand, palmar (palm), thumb, index finger, middle finger, ring finger, little finger, hand width and hand opening length measurements were taken with a digital caliper (Dasqua, Italy).

Secondary outcomes

Reaction time measurement

Time frame: Baseline

Reaction time was assessed using the Blazepod device (Blazepod 1.0). A four-LED evaluation panel was used for measurement. Individuals were asked to turn off the LEDs as quickly as possible while in a seated position. The average time between the LEDs turning on and the individuals touching and turning them off the illuminated sensors was recorded by the device in milliseconds for each hand separately. A one-minute rest period was given between tests. The test was conducted twice, and the best score was recorded. The dominant and non-dominant upper extremities were evaluated, respectively

Sponsors and collaborators

Lead sponsor

Kutahya Health Sciences University

Other

Registry information

Important dates

Study start: 2025
Primary completion: 2025
Study completion: 2026
First posted: Jan 21, 2026
Registry last updated: Jan 21, 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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Completed