Healthy
Conditions
Brief summary
In this study, upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time will be examined in healthy young adults. A total of 46 healthy individuals aged between 18 and 25 years, with no history of systemic disease or upper extremity injury affecting functional performance, will be included. Upper extremity anthropometric measurements, including arm, forearm, and hand lengths and circumferential measurements, will be obtained using standardized procedures. Functional upper extremity skills will be assessed using the Purdue Pegboard Test, and reaction time will be evaluated using the Nelson Hand Reaction Test. Correlation analyses will be performed to examine the relationships between upper extremity anthropometric characteristics, functional upper extremity skills, and reaction time.
Interventions
OTHERNo Interventions
This study is observational in nature and does not include any therapeutic intervention. Participants will undergo anthropometric measurements and assessments of upper extremity function and reaction time for research purposes only.
Sponsors
Istinye University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 25 Years
Healthy volunteers
Yes
Inclusion criteria
* Aged between 18 and 25 years * No medical condition requiring regular medical supervision * No history of upper extremity injury resulting in sequelae or any upper extremity injury within the past year * Ability to communicate verbally and in writing in Turkish or English
Exclusion criteria
* Presence of postural abnormalities, movement restrictions, or pain affecting grasping or upper extremity function, as determined by inspection * Adhesions, muscle shortening, or restricted joint range of motion affecting the neck muscles * History of cervical canal stenosis or cervical disc herniation * Significant impairment of balance system function * Visual or sensory function disorders * Upper extremity muscle tone disorders, including essential tremor
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Upper Extremity Anthropometric Measurements | Baseline | Arm, forearm, and hand length and circumference measurements (cm). |
| Functional Upper Extremity Skills (Purdue Pegboard Test) | Baseline | Functional upper extremity skills will be evaluated using the Purdue Pegboard Test. Performance will be measured as the number of pegs placed within 30 seconds for the dominant hand, non-dominant hand, and both-hands conditions, as well as the total number of components assembled within one minute during the assembly subtest. Higher scores will indicate better functional upper extremity performance. |
| Reaction Time (Nelson Hand Reaction Test) | Baseline | Reaction time will be assessed using the Nelson Hand Reaction Test. Reaction time performance will be quantified based on the distance (cm) the ruler falls before being caught, with values converted to reaction time in milliseconds. The average of the best three trials will be used for analysis, with lower values indicating faster reaction time. |
Countries
Turkey (Türkiye)
Contacts
STUDY_CHAIRGül Deniz YILMAZ YELVAR
Istinye University
Outcome results
None listed