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Not yet recruitingNCT07416877Updated Feb 18, 2026

The Effects of Dual-Task Exercises on Parameters After Total Knee Arthroplasty

An interventional study of Home Exercises and Dual Task Exercises in Total Knee Arthroplasty and Dual Task Exercises, sponsored by Yuzuncu Yil University. Not yet recruiting. Open to participants aged 50 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-02-18.

Primary conditionMotor Activity(the registry's first term)UnverifiedIs this wrong?Motor Activity is a broad heading, used only when no more specific condition is named. No better condition is named, so the registry's term is kept.

Sponsored by Yuzuncu Yil University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jul 2026, 3 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
50 Years to 65 Years
Sex
All
01

Study summary

Introduction: Total knee arthroplasty (TKA) is a widely used surgical treatment method worldwide for advanced pain and functional loss resulting from osteoarthritis and other degenerative knee pathologies. The aim of TKA is to reduce pain, restore joint function, and improve quality of life. Although many patients experience a significant reduction in pain after surgery, balance problems, risk of falls, and functional limitations may persist in the postoperative period.In addition, loss of performance may occur in daily tasks requiring motor-cognitive interaction (e.g., talking while walking, changing direction while carrying objects).The dual-task paradigm describes exercises and assessments that require the simultaneous execution of both motor and cognitive tasks; in rehabilitation, it aims to improve daily living functions by targeting the simultaneous functioning of motor and cognitive systems.In the literature, studies on dual-task assessment and training in individuals with knee osteoarthritis and TKA are limited, and the findings are heterogeneous. Studies in elderly and osteoarthritic populations have reported that both single-task and dual-task training improve balance performance, but dual-task training does not always show a clear superiority compared to single-task training. These studies have generally focused on balance and gait parameters; evidence on how other clinically important variables such as pain, reaction time, and fear of movement (kinesiophobia) change with dual-task interventions is insufficient and inconsistent.

Method: The effect size of the WOMAC Osteoarthritis Index assessment parameter in the reference article is 1.02. It was calculated that a minimum of 20 individuals in total, 10 in each group, were required for a study with 80% power, using a type I error of α=0.05 and a type II error of β=0.20.After obtaining informed consent from all participants, their sociodemographic information will be recorded. Subsequently, their cognitive status will be assessed using the Mini Mental State Test (MMSE).Pain will be assessed using the Numerical Pain Rating Scale (NPRS). Functional mobility will be assessed using the Timed Up and Go (TUG). Dynamic balance will be assessed using the Functional Reach Test. Static balance will be assessed using the Berg Balance Scale (BBS). Functionality will be assessed using the WOMAC Osteoarthritis Index. Kinesiophobia will be assessed using the Tampa Kinesiophobia Scale (TKS). Lower extremity reaction time will be assessed using the Fitlight Trainer (FITLIGHT Sports Corp., Ontario, Canada), a wireless system consisting of 8 sensors.Interventions: After participants were randomly divided into two groups, those in the control group would perform a physiotherapy program consisting of strengthening and balance exercises at home, provided by us, and would not participate in any other exercise program during the study period. Exercises would be taught to the control group in person by a physiotherapist at the time of the initial assessment, and follow-up sessions would be video-recorded. The intervention group's program would be a dual-task exercise program, in addition to the exercises provided in the home exercise program. Interventions would last for 8 weeks, 2 days a week, and the program would be updated weekly.

02

Conditions studied

  • Total Knee Arthroplasty
  • Dual Task Exercises

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Keywords

  • Total knee arthroplasty
  • dual task exercises
  • exercise
  • reaction time
  • functionality
  • kinesiophobia
03

In context

Motor Activity Unverified

9,798 studies on the registry are indexed under Motor Activity; 1,910 are open to participants now.

This study's planned enrollment of 40 is below the median of 60 across 8,388 interventional studies indexed under Motor Activity.

Browse Motor Activity studies →

Lead sponsor

Yuzuncu Yil University is the lead sponsor of 78 studies on the registry; 20 are open to participants now.

Compared within Motor Activity, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →

04

Who can participate

Ages eligible
50 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Mini Mental State Test score ≥24; ability to provide signed and voluntary agreement to participate in the study.
  • Underwent primary unilateral total knee replacement surgery.
  • Being between 50 and 65 years old

Exclusion criteria

Exclusion Criteria:

  • Having undergone revision or bilateral knee replacement surgery,
  • Having experienced postoperative complications,
  • Having undergone lower extremity surgery,
  • Having a neurological disease.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Active comparator
    Home Exercise Group: Control Group

    Other: Home Exercises

  • Experimental
    Dual Task Exercises: Physiotherapy Group

    Dual Task Exercises

    Other: Home Exercises · Other: Dual Task Exercises

Interventions

  • OtherHome Exercises

    Home exercises consisting of strengthening and balance exercises at home and will not engage in any other exercise programs during the study period.The interventions will last for 8 weeks, 2 days a week, and the program will be updated each week.

  • OtherDual Task Exercises

    In addition to the home exercise program, a dual-task exercise program will be implemented.The interventions will last for 8 weeks, 2 days a week, and the program will be updated each week.

06

What researchers measure

Primary outcomes

  1. Reaction time

    The total time and average time until the light turns off were recorded.

    Time frame: 8 weeks

  2. WOMAC Osteoarthritis Index

    This is a 24-item self-report scale used to assess functional status after osteoarthritis and TKA (Total Knee Arthroplasty). It has three sub-dimensions: pain (5 items), stiffness (2 items), and physical function (17 items). Each item is scored between 0 and 4. A higher score indicates a worse functional level.

    Time frame: 8 weeks

  3. Kinesiophobia

    The Tampa Kinesiophobia Scale (TKS) will be used for assessment. The TKS is a 17-item scale that measures fear of movement and re-injury. Each item is scored from 1 to 4; the total score ranges from 17 to 68. A higher score indicates a greater fear of movement.

    Time frame: 8 weeks

  4. Functional Mobility

    The TUG test measures the time, in seconds, for an individual to stand up from a chair, walk 3 meters, turn around, and sit back down. It comprehensively evaluates functional mobility, balance, walking speed, and lower extremity strength.

    Time frame: 8 weeks

  5. Static Balance

    The Berg Balance Scale (BDS) will be used for assessment. The BDS is a 14-item scale that evaluates an individual's static and dynamic balance skills. Each item is scored between 0 and 4; the total score ranges from 0 to 56.

    Time frame: 8 weeks

Secondary outcomes

  1. Pain Intensity

    Pain will be assessed using the Numerical Pain Rating Scale (NPRS). Pain intensity is evaluated on a numerical scale of 0-10; 0 = no pain, 10 = unbearable pain.

    Time frame: 8 weeks

  2. Dynamic balance

    The functional reach test will be used in the dynamic balance assessment.

    Time frame: 8 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No — Study Protocol and Statistical Analysis Plan

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Feb 2026; primary completion for Jul 2026, 5 months later.

Of 5,147 non-industry interventional studies with no phase under Motor Activity, half reached primary completion within 17 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 36. This study's planned 5 months is below that.

Counting every sponsor, half of 5,207 studies reached it within 17 months; a quarter within 7 and three quarters within 36.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 11, 2026
First posted
Feb 18, 2026
StartEst.
Feb 15, 2026
Primary completionEst.
Jul 15, 2026
CompletionEst.
Sep 15, 2026
Last update
Feb 18, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07416877
Lead sponsor
Yuzuncu Yil University
Responsible party
Necati Muhammed TAT (Assistant Professor, Yuzuncu Yil University) — Principal investigator
First posted
Feb 18, 2026
Start date
Feb 15, 2026 (estimated)
Primary completion
Jul 15, 2026 (estimated)
Completion
Sep 15, 2026 (estimated)
Last update
Feb 18, 2026

Study contacts

Necati Muhammed Tat, Asst.Prof
Contact
necatimuhammedtat@yyu.edu.tr
+905075083347
Anıl Sensever, Physiotherapist
Contact
anilsensever82@gmail.com
+905308926718
Necati Muhammed Tat, Asst.Prof.
study chair · Van Yuzuncu Yil University, Faculty of Health Science
Anıl Şensever
principal investigator
Mehmet Ata Gökalp, Prof.Dr.
study chair · Van Yuzuncu Yil University, Faculty of Medicine
Şilan Kaplan
principal investigator

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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