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DEVELOPMENT AND PSYCHOMETRIC EVALUATION OF THE NEUROCOGNITIVE UPPER EXTREMITY TESTS: A RELIABILITY AND VALIDITY STUDY

5 mei 2026 bijgewerkt door: Elif Turgut, Hacettepe University

The goal of this observational study is to develop an upper extremity neurocognitive performance test battery, determine its reliability and validity, and investigate the effect of neurocognitive load on test performance in athletes and healthy volunteers aged 18-40.

The main questions it aims to answer are:

Are the developed upper extremity neurocognitive tests reliable and valid tool for assessment?

Does the addition of neurocognitive load significantly affect upper extremity physical performance scores?

Are the neurocognitive performance test results related to shoulder rotator cuff muscle strength, rate of force development, and shoulder function?

Researchers will compare the neurocognitive performance of athletes to healthy non-athlete individuals to see if the test battery can effectively differentiate between these two groups (discriminative validity).

Participants will:

Complete demographic forms and questionnaires regarding activity level and shoulder function.

Undergo shoulder range of motion and isometric strength/rate of force development assessments.

Perform a battery of 4 neurocognitive tests integrated with a light-based reaction system.

Perform the same functional tests without neurocognitive load to serve as a baseline for comparison.

(Athletes only) Attend additional sessions to evaluate the feasibility of the tests and to assess test-retest reliability with a one-week interval.

Studie Overzicht

Gedetailleerde beschrijving

This study focuses on the integration of physical and cognitive components to assess athletic performance through the development of a specific Upper Extremity Neurocognitive Performance Tests. While traditional functional tests often focus on pre-planned motor tasks, this research aims to simulate real-world sports environments by incorporating reactive and cognitive demands. Study Methodology and Testing Protocol The research is conducted at the Hacettepe University, Department of Sports Physiotherapy and Rehabilitation.

The evaluation involves several specialized assessments:

Neurocognitive Performance Test Battery: Utilizing a light-based reaction system, four specific tests have been developed to measure reactive agility and decision-making under load:

Neurocognitive Closed Kinetic Chain Upper Quarter Stability Test (N-CKCUQST): Participants perform hand transfer tasks in a plank position while responding to specific target colors.

Neurocognitive Open Kinetic Chain 90-90 Wall Throw Test (N-OKCWTT): Participants perform rhythmic wall throws while reacting to light stimuli. Neurocognitive 90-90 Medicine Ball Drop Test (N-MBDT): Assesses reactive catching control and hand-eye coordination under cognitive load. Neurocognitive Upper Quarter Y-Balance Test (N-UQYBT): A modified version of the traditional Y-Balance test that incorporates a visual-motor response at 80% of the participant's maximum reach.

Physical Performance Comparisons: To isolate the impact of cognitive load, participants also perform traditional versions of these tests without the light-based reaction stimuli.

Strength and Power Metrics: Isometric strength and the Rate of Force Development (RFD) for the shoulder internal and external rotators are measured using the ForceFrame dynamometer. Additionally, the Athletic Shoulder (ASH) Test is utilized on a force platform to evaluate bilateral functional strength in the I, Y, and T positions.

Session Structure Athlete Group: Participation consists of three separate sessions. The first session focuses on feasibility and familiarization. The second session involves comprehensive evaluation and validity analysis. The third session, conducted one week later, is dedicated to test-retest reliability.

Control Group: Healthy, non-athlete volunteers participate in a single evaluation session to establish the discriminative validity of the test battery.

Safety and Data Integrity: All assessments are non-invasive and conducted by experienced physiotherapists. To ensure the accuracy of the performance evaluation, video recordings are taken during the neurocognitive tests, which are stored in encrypted digital environments and deleted five years after the study's completion. All participants are required to avoid high-intensity physical activity for 48 hours prior to testing.

Studietype

Observationeel

Inschrijving (Geschat)

30

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

      • Ankara, Turkije (Türkiye)
        • Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Department of Sports Physiotherapy and Rehabilitation
        • Contact:
          • Volga Bayrakcı Tunay, PT, PhD, Professsor
          • Telefoonnummer: +905323547626
          • E-mail: volgamel@yahoo.com

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Volwassen

Accepteert gezonde vrijwilligers

Ja

Bemonsteringsmethode

Niet-waarschijnlijkheidssteekproef

Studie Bevolking

Participants are selected based on their availability and meeting specific inclusion criteria from targeted environments (sports clubs and clinics) rather than random selection from the general population.

Primary Location: The study is conducted at the Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Department of Sports Physiotherapy and Rehabilitation in Ankara, Turkey.

Athlete Cohort: Participants are recruited from local sports clubs operating in Ankara and individuals who have applied to the same university.

Control Cohort: Healthy, non-athlete individuals are recruited from those applying to the same university who meet the specific activity-level requirements for the control group.

Geographic Context: The population is primarily composed of individuals residing in or around the Ankara who can visit the clinic for assessment.

Setting: All evaluations take place in a specialized clinical biomechanics and sports rehabilitation laboratory environment.

Beschrijving

Inclusion Criteria

General Inclusion Criteria (Both Groups):

  • Individuals between the ages of 18 and 40
  • No passive range of motion limitations in the shoulder joint
  • Classified as healthy with no history of injury in the past year according to the Extended Nordic Musculoskeletal Questionnaire
  • Volunteered to participate in the study[cite: 1].

Athlete Group Specific Criteria:

  • Physically active individuals
  • Currently active in sports clubs in Ankara and/or applied to the Hacettepe University Department of Sports Physiotherapy and Rehabilitation
  • History of training or physical activity at least three times a week for the past year
  • Participation in recreational or competitive above or below shoulder height sports

Control Group Specific Criteria:

  • Healthy individuals who have applied to the Hacettepe University Department of Sports Physiotherapy and Rehabilitation Unit
  • Does not engage in regular physical activity
  • History of training or physical activity fewer than three times a week over the past year
  • No participation in recreational or competitive sports

Exclusion Criteria

  • Presence of symptomatic upper extremity pathology
  • History of upper extremity and/or trunk injury or surgery in the last 12 months
  • History of ongoing neck pain, neurological symptoms in any extremity, or back, hip, or knee pain in the last 12 months
  • Presence of a health condition that could cause a decrease in shoulder strength, such as inflammatory arthritis or neurological disorders
  • Presence of any systemic disease
  • Presence of visual or hearing impairments

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

Cohorten en interventies

Groep / Cohort
Athlete Group
This group consists healthy, physically active individuals aged 18-40 who are currently active in sports clubs in Ankara or have applied to the Hacettepe University, Department of Sports Physiotherapy and Rehabilitation. Participants must have been training at least three times a week for the past year and have no history of upper extremity injury or surgery in the last 12 months. This cohort will participate in three separate sessions to assess the feasibility, validity, and test-retest reliability of the neurocognitive test battery.
Non-Athlete Group
This group consists healthy individuals aged 18-40 who meet the general inclusion criteria but do not engage in regular physical activity (defined as exercising fewer than three times a week over the past year). These participants are recruited from healthy individuals applying to the Hacettepe University Sports Physiotherapy and Rehabilitation Unit. This cohort will undergo a single evaluation session to determine the discriminative validity of the test battery by comparing their results to the athlete group.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Test-Retest Reliability of the Neurocognitive Test Battery
Tijdsspanne: Baseline (Session 2) and 1 week later (Session 3)
Evaluated using the Intraclass Correlation Coefficient (ICC) to determine the consistency of scores obtained from the four neurocognitive tests when administered one week apart to the athlete group.
Baseline (Session 2) and 1 week later (Session 3)
Concurrent Validity
Tijdsspanne: During the second evaluation session (approx. 60 minutes).
Measured by analyzing the correlation (Pearson or Spearman coefficients) between the neurocognitive performance test results and physical parameters, including shoulder rotator cuff isometric strength and Rate of Force Development (RFD).
During the second evaluation session (approx. 60 minutes).
Discriminative Validity
Tijdsspanne: Single evaluation session (approx. 60 minutes).
Measured by comparing the neurocognitive performance scores between the athlete group and the healthy control group to determine if the battery can distinguish between different activity levels.
Single evaluation session (approx. 60 minutes).

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Dual-Task Interference
Tijdsspanne: During the second evaluation session (approx. 60 minutes)
Comparison of performance scores (number of touches or tosses) between tasks performed with neurocognitive load (reactive lights) and traditional versions of the same tests without cognitive load.
During the second evaluation session (approx. 60 minutes)

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Geschat)

5 mei 2026

Primaire voltooiing (Geschat)

5 juli 2026

Studie voltooiing (Geschat)

5 juli 2026

Studieregistratiedata

Eerst ingediend

5 mei 2026

Eerst ingediend dat voldeed aan de QC-criteria

5 mei 2026

Eerst geplaatst (Werkelijk)

12 mei 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

12 mei 2026

Laatste update ingediend die voldeed aan QC-criteria

5 mei 2026

Laatst geverifieerd

1 mei 2026

Meer informatie

Termen gerelateerd aan deze studie

Andere studie-ID-nummers

  • FTREK26/25

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

ONBESLIST

Beschrijving IPD-plan

The research team has not yet established a definitive plan for sharing individual participant data (IPD). The decision will be finalized upon the completion of the study, following the analysis of the results and ensuring full compliance with the institutional policies of Hacettepe University and the specific conditions set by the Ethics Committee. Any potential data sharing will strictly involve de-identified data to ensure participant confidentiality and will be subject to a formal data use agreement.

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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