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RecruitingNCT07883824Updated Oct 20, 2026

Aquatic Exercise in Patients With Knee Osteoarthritis

An interventional study of Standard physical therapy and Hydrotherapy in Central Sensitization, Knee Osteoarthristis and Aquatic, sponsored by Kirsehir Ahi Evran Universitesi. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 40 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-10-20.

Sponsored by Kirsehir Ahi Evran Universitesi · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Jun 2026, registered Oct 2026).
  • Started Jun 2026; still recruiting 4 months later.
Updated Oct 20, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
40 Years to 65 Years
Sex
All
01

Study summary

The effect of aquatic exercise on central sensitization in patients with knee osteoarthritis are not fully known in the studies conducted to date. The aim of this study is to examine the effect of aquatic exercise on central sensitization and functional parameters in patients with knee osteoarthritis.

02

Conditions studied

  • Central Sensitization
  • Knee Osteoarthristis
  • Aquatic

Keywords

  • balance
  • quality of life
  • depression
  • central sensitization
  • knee osteoarthritis
  • aquatic exercise
03

In context

Depression

8,240 studies on the registry are indexed under Depression; 1,641 are open to participants now.

This study's planned enrollment of 60 is below the median of 84 across 6,869 interventional studies indexed under Depression.

Browse Depression studies →

Lead sponsor

Kirsehir Ahi Evran Universitesi is the lead sponsor of 136 studies on the registry; 56 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 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

  1. Adults aged 40-65
  2. Individuals diagnosed with knee osteoarthritis
  3. Individuals with no cognitive impairments
  4. Volunteers for the study

Exclusion criteria

Exclusion Criteria:

  1. Individuals who have undergone knee surgery
  2. Individuals presenting with signs such as fracture, malignancy, or infection
  3. Pregnancy
  4. Individuals with cognitive impairments who are unable to express themselves.
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Active comparator
    Control group

    Participants receive standard physical therapy sessions for knee osteoarthritis.

    Other: Standard physical therapy

  • Experimental
    Experimental Group

    • Participants receive standard physical therapy sessions combined with hydrotherapy (pool therapy) sessions for knee osteoarthritis.

    Other: Standard physical therapy · Other: Hydrotherapy

Interventions

  • OtherStandard physical therapy

    Standard physical conventional therapy exercises for knee osteoarthritis.

  • OtherHydrotherapy

    Hydrotherapy (pool therapy) sessions tailored to standard physiotherapy for knee osteoarthritis.

06

What researchers measure

Primary outcomes

  1. Central Sensitization

    The Central Sensitization Inventory is a valid tool for assessing psychological and sensory factors associated with central pain sensitivity in patients with knee osteoarthritis. The Central Sensitization Inventory demonstrates moderate reliability in patients who have developed central sensitization due to knee osteoarthritis. Part A consists of 25 items that assess an individual's symptoms of central sensitization; it is scored using a 4-point Likert scale. Part B assesses whether the patient has received a diagnosis of another condition within the family of central sensitization syndromes from a physician. A high score indicates severe central sensitization.

    Time frame: 8 weeks

Secondary outcomes

  1. Visual Analog Scale

    Participants' pain intensity will be assessed. Pain intensity is indicated on a 10 cm straight line with anchor points representing "no pain" and "worst pain imaginable." The distance between the starting point and the point marked by the patient is measured in centimeters. An increase in this distance signifies an increase in pain intensity.

    Time frame: 8 weeks

  2. Knee Injury and Osteoarthritis Outcome Score

    Knee-related quality of life scales for patients with knee osteoarthritis are tools used to assess pain, function, and activities of daily living. They comprise 42 items across five distinct subscales.

    Time frame: 8 weeks

  3. Algometer

    Central sensitization is assessed by measuring the Pressure Pain Threshold (PPT). Pressure will be applied to the quadriceps muscle using an algometer until the patient perceives pain. The procedure will be performed three times at 20-second intervals, and the average value will be calculated. Subsequently, the patient will immerse their foot and ankle in cold water (1-4°C) for 60-120 seconds. Following this, the PPT will be measured again at the same point on the quadriceps muscle using the algometer, and the total score will be calculated.

    Time frame: 8 weeks

  4. SF-36 Quality of Life Scale

    It measures an individual's quality of life. The questionnaire consists of 36 items and 8 sub-parameters (physical functioning, bodily pain, limitations due to physical problems, emotional well-being, social functioning, energy/fatigue, and general health perception).

    Time frame: 8 weeks

  5. Biodex Balance Scale

    Patients' static balance will be measured using the Biodex Balance System®. Patients will be asked to maintain a balanced standing position on the static platform. The anteroposterior index, mediolateral index, and overall index will be evaluated with eyes open and eyes closed. Each position will be tested three times, and the average value will be recorded. For dynamic balance, level two of the 8-level resistance scale (1 = least stable, 8 = most stable) will be used.

    Time frame: 8 weeks

  6. Beck Depression Inventory

    It is widely used to assess the severity of depression in patients. It is a questionnaire consisting of 21 items. A high total score indicates a high level of depression severity.

    Time frame: 8 weeks

  7. Mini-Mental State Examination

    The Mini-Mental test, which measures cognitive functions quickly and in a standardized manner, will be administered in the clinical setting; memory, attention, language, and visuospatial skills are assessed. The total score for the 11 items across these five domains ranges from 0 to 30.

    Time frame: 8 weeks

07

Study locations

1 of 1 sites recruiting
  • Kirsehir Ahi Evran University, Kırşehir, Merkez 40100
    Kırşehir, Merkez 40000, Turkey (Türkiye)
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update 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

Started Jun 2026 (actual). Primary completion is estimated for Dec 2026, 6 months after the start.

Of 3,016 non-industry interventional studies with no phase under Depression, half reached primary completion within 22 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 43. This study's planned 6 months is below that.

Counting every sponsor, half of 3,112 studies reached it within 22 months; a quarter within 10 and three quarters within 43.

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

Registered
Oct 13, 2026
First posted
Oct 20, 2026
StartActual
Jun 1, 2026
Primary completionEst.
Dec 1, 2026
CompletionEst.
Feb 1, 2027
Last update
Oct 20, 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.
Registered
First appeared on the registry. No changes since
Oct 20, 2026
Show all 1 update
  1. Oct 20, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07883824
Responsible party
Mensure Aslan (Physical Therapist, Kirsehir Ahi Evran Universitesi) — Principal investigator
First posted
Oct 20, 2026
Start date
Jun 1, 2026
Primary completion
Dec 1, 2026 (estimated)
Completion
Feb 1, 2027 (estimated)
Last update
Oct 20, 2026

Study contacts

Mensure Aslan
Contact
mensure.aa@outlook.com
90 386 280 50 31

Oversight

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

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