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Hip OsteoarthritisNCT06783452

Clinical Pilates in Hip Osteoarthritis: A Randomised Controlled Trial

A study testing Exercise in people with Hip Osteoarthritis, run by Izmir Katip Celebi University at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to investigate the effect of a clinical Pilates exercise program on reducing symptoms in individuals with hip osteoarthritis. The main questions it aims to answer are: Does a clinical Pilates exercise program have an effect on pain, range of motion, physical function, performance, spinal… Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Hip Osteoarthritis
What is being tested?
Exercise
Could I receive a placebo?
No, everyone receives an active treatment
How many people
52 participants
Where
1 siteTurkey (Türkiye)
Study dates
30 Nov 2024to 1 Jun 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age above 18 years
  • Diagnosis of hip osteoarthritis (OA) according to the American College of Rheumatology
  • Not on the waiting list for hip replacement surgery
  • Willingness to participate in the exercise program

Who cannot join

  • Symptomatic OA in the knee or big toe
  • Presence of other types of arthritis
  • History of hip and/or knee prosthesis or fracture
  • Use of walking aids
  • Regular exercise habit of two or more sessions per week
  • Corticosteroid injection into the hip within the past 12 months
  • Participation in a physical therapy program for hip pain within the past 3 months
  • Severe cardiovascular disorders or other comorbidities that significantly limit daily physical capacity or contraindicate physical exertion

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Atatürk Training and Research Hospital

    Izmir, 35360

Other trials in Turkey (Türkiye)

About this study

Official title: Investigation of the Effectiveness of Clinical Pilates in Hip Osteoarthritis: A Randomised Controlled Trial

The aim of this study is to investigate the effect of a clinical Pilates exercise program on reducing symptoms in individuals with hip osteoarthritis. The main questions it aims to answer are:

  • Does a clinical Pilates exercise program have an effect on pain, range of motion, physical function, performance, spinal mobility, postural control, disability, self-efficacy, and quality of life in individuals with hip osteoarthritis?
  • Does a conventional therapeutic exercise program have an effect on pain, range of motion, physical function, performance, spinal mobility, postural control, disability, self-efficacy, and quality of life in individuals with hip osteoarthritis? Researchers will compare clinical pilates program to conventional therapeutic exercise program to see if exercise works to reducing hip osteoarthritis symptoms.
Read more

Participants will:

  • Take clinical pilates or Conventional Therapeutic Exercise twice a week for 12 weeks
  • The patients will be assessed by a blind evaluator both before and after the treatment.
Read the detailed description

The clinical Pilates group will perform 45-minute exercise sessions under the supervision of a physiotherapist twice a week for 12 weeks, focusing on fundamental spinal alignments and Pilates principles. The program will include exercises that engage all body segments and combine movement with breathing. Participants will progress to more advanced levels as long as they can maintain proper alignment. Clinical Pilates exercises are structured into three levels of difficulty, and participants who complete the current level without compromising alignment will advance to the next level. The Conventional Therapeutic Exercise group will participate in an exercise program under the supervision of a physiotherapist twice a week for 12 weeks. The program, consisting of stretching and strengthening exercises, will last approximately 45 minutes. Resistance bands will be used to facilitate progression. Based on the individual's perceived difficulty level, resistance bands will be introduced or adjusted by changing their color to increase or decrease resistance.

Being tested
Exercise
Keywords
pilates, exercise, pain, osteoarthritis
Medical subject headings
Osteoarthritis, Hip, Motor Activity, Pain, Osteoarthritis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ExerciseOther

    Clinical Pilates Session:

    Each clinical Pilates movement will have three difficulty levels: beginner, intermediate, and advanced. The progression criteria for increasing difficulty will be determined by the prevention of compensatory movements, the ability to activate target muscles, achieving more controlled movements during exercise, and maintaining a more stable posture. This program will include standard hip-focused as well as full-body clinical Pilates movements.

  • ExerciseOther

    Conventional Therapeutic Exercise Program:

    The Conventional Therapeutic Physiotherapy Exercise Program will consist of strengthening exercises for the hip flexors, extensors, abductors, and adductors, as well as the knee flexors and extensors. Additionally, stretching exercises for the hip flexors, extensors, abductors, and adductors, as well as the knee flexors and extensors, will be included. Stretching exercises will be performed at a pain-free point where tension is felt, holding for 10-30 seconds to achieve a total duration of 60 seconds per muscle group. These exercises will represent standard hip-targeted exercises.

    During the exercises, patients will be asked to rate their perceived exertion using the BORG scale (0-10). When the difficulty level reaches 5-6 points, progression will first be achieved by increasing the number of sets, followed by the use of resistance bands.

Study groups in NCT06783452
Study groupRoleWhat they receive
Clinical Pilates GroupExperimentalThe patients participated in a Clinical Pilates program under the supervision of a physiotherapist twice a week for a duration of 12 weeks.
Receives: Other: Exercise
Conventional Therapeutic Exercise ProgramExperimentalThe patients participated in a Conventional Therapeutic Exercise program under the supervision of a physiotherapist twice a week for a duration of 12 weeks.
Receives: Other: Exercise

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain Intensity

    Pain intensity will be evaluated using the Visual Analog Scale (VAS). During the assessment, patients will be asked to mark the degree of pain they feel on a 100-mm horizontal line. The distance from the starting point to the marked point will be measured with a ruler, and the pain intensity will be recorded in millimeters.

    The VAS, developed by Vas Price et al. (1983), is a validated and reliable tool for determining the perceived intensity of pain. It is simple to administer and widely used in clinical practice.

    Measured: From enrollment to the end of treatment at 12 weeks

  2. Lumbopelvic Stabilization

    Lumbopelvic stabilization will be assessed using the "Stabilizer Pressure Biofeedback Unit". Prior to the measurement, each participant will be instructed in the corset technique for contracting the Transversus Abdominis muscle while lying in a supine position. Participants will be asked to lie on their back with their knees bent (hook-lying position), maintaining a neutral and relaxed spinal alignment.

    A pressure cell, inflated with air and connected to a stabilizer, will be placed under the lumbar spine. The manometer's baseline pressure will be inflated to 40 mmHg. Participants will then be instructed to contract their Transversus Abdominis muscle using the abdominal corset technique without moving the spine or pelvis and without holding their breath. They will be required to maintain this contraction for 5 seconds.

    After three practice trials to ensure learning, participants will rest for 30 seconds. The actual measurement will consist of three repetitions of 10 seconds each.

    Measured: From enrollment to the end of treatment at 12 weeks

Secondary outcomes (10)
  1. Postural Control:

    Static balance assessment was performed using a proprioceptive-stabilometric assessment machine (ProKin 252; TecnoBody, Prokin, Italy). The device consists of a force platform with a 55 cm diameter surface, a sampling rate of 20 Hz, and a sensitivity of 0.1.

    For all participants, anterior-posterior stability, medial-lateral stability index, and total stability index were measured under two conditions: with eyes open and eyes closed. Participants were instructed to stand motionless on the fixed platform surface for 30 seconds with their eyes open. During this time, the minimal postural sway of the body was recorded by the device, and a report was generated. The same measurement was then repeated with eyes closed.

    Higher scores indicate impaired postural stability, while lower scores represent normal postural stability

    Measured: From enrollment to the end of treatment at 12 weeks

  2. The Active Normal Range of Motion

    The Active Normal Range of Motion (ANROM) of the participants will be evaluated in appropriate positions. If necessary, measurements will be taken using a universal goniometer, and the degree of limitation will be recorded.

    In the supine position, hip flexion, abduction, and adduction ANROM will be assessed, while hip extension ANROM will be evaluated in the prone position.

    Measured: From enrollment to the end of treatment at 12 weeks

  3. Physical Function

    The physical function levels of the participants will be measured using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). This assessment tool consists of three subscales: Section A evaluates pain severity, Section B assesses joint stiffness, and Section C measures physical function.

    The scale includes 5 questions for pain, 2 questions for joint stiffness, and 17 questions for physical function. Each question is scored on a scale from 1 to 5, where:

    1. = None
    2. = Mild
    3. = Moderate
    4. = Severe
    5. = Very Severe

    Each subscale generates a total score independently. A lower score indicates better health status, while a higher score reflects worse health status. The scoring ranges are as follows:

    Section A (pain): 5-25 Section B (joint stiffness): 2-10 Section C (physical function): 17-85

    Measured: From enrollment to the end of treatment at 12 weeks

  4. Disability

    The disability levels of participants will be assessed using the Hip Disability and Osteoarthritis Outcome Score-Physical Function Short Form (HOOS-PS). HOOS-PS is a 5-item scale designed to evaluate symptoms and functional status related to hip osteoarthritis. This questionnaire was developed by OMERACT/OARSI.

    Each question is scored on a scale of 0 to 4 based on the degree of difficulty, with a maximum possible score of 20. However, the scores are normalized to a range of 0-100, where 0 indicates the best functional status.

    Measured: From enrollment to the end of treatment at 12 weeks

  5. Self-Efficacy

    The self-efficacy levels of participants will be assessed using the Arthritis Self-Efficacy Scale. This scale consists of 20 items evaluated on a 10-point visual scale and includes three subdimensions: self-efficacy for pain, self-efficacy for function, and self-efficacy for other symptoms.

    Self-efficacy for pain involves the perception of the ability to reduce pain and maintain it at a low level. The first 5 items of the scale belong to this subdimension.

    Self-efficacy for function measures the ability to perform functions affected by arthritis, particularly in the hand and foot joints. The next 9 items following the first 5 are included in this subdimension.

    Self-efficacy for other symptoms evaluates the ability of individuals with arthritis to cope with existing symptoms. The final 6 items fall under this subdimension.

    Each item is scored on a 10-point scale, ranging from "Not at all confident = 1" to "Very confident = 10." The total score can range from 20 (minimu

    Measured: From enrollment to the end of treatment at 12 weeks

  6. Quality of Life Index

    The quality of life levels of the participants will be evaluated with SF-12. SF-12 consists of 8 sub-dimensions and 12 items including physical functioning (2 items), physical role (2 items), body pain (1 item), general health (1 item), energy (1 item), social functioning (1 item), emotional role (2 items) and mental health (2 items). The items related to physical and emotional role are answered as 'yes or no', while the other items have Likert-type options ranging between 3 and 6. Physical component summary (PCS)-12 score is obtained from general health, physical functioning, physical role and body pain sub-dimensions, while mental component summary (MCS)-12 score is obtained from social functioning, emotional role, mental health and energy sub-dimensions. Both FCI-12 and MCI-12 scores ranged from 0 to 100, with higher scores representing better health.

    Measured: From enrollment to the end of treatment at 12 weeks

  7. 30-Second Chair Stand Test

    The participant is asked to sit upright on a standard 43 cm high chair with their arms crossed over their shoulders. They are then instructed to stand up and sit down as many times as possible in 30 seconds, at the fastest pace they can. They are told that they can rest if they get tired. The number of stand-ups is recorded.

    Measured: From enrollment to the end of treatment at 12 weeks

  8. 40-Meter Fast Walk Test

    The participant is asked to walk as fast as they can, but not run, for a distance of 40 meters. The time taken to complete the test is recorded.

    Measured: From enrollment to the end of treatment at 12 weeks

  9. Stair Climbing Test

    The participant is asked to climb up a 9-step stair, turn around, and climb back down. The time taken is recorded, and their ability to perform the functional task is observed.

    Measured: From enrollment to the end of treatment at 12 weeks

  10. Timed Up and Go Test

    The participant is asked to stand up from a chair, walk 3 meters, turn around, walk back to the chair, and sit down. The time taken to complete the test is recorded.

    Measured: From enrollment to the end of treatment at 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jan 2025
  2. Study start30 Nov 2024
  3. Primary completion1 Jun 2025
  4. Study completion1 Jun 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06783452
Sponsor's protocol ID
KatipCelebiUniversityIzmır
Status last verified
Mar 2026
First submitted
7 Jan 2025
Last updated
25 Mar 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Rego TAM, Ferreira APL, Villela DW, Shirahige L, Xavier AB, Braz RRS, Guerino MR, Araujo MDGR. Effects of mat Pilates on older adult women with knee osteoarthritis: A randomized controlled trial. J Bodyw Mov Ther. 2023 Jan;33:136-141. doi: 10.1016/j.jbmt.2022.02.007. Epub 2022 Apr 15.

    PubMed 36775508
  • Patti A, Zangla D, Sahin FN, Cataldi S, Lavanco G, Palma A, Fischietti F. Physical exercise and prevention of falls. Effects of a Pilates training method compared with a general physical activity program: A randomized controlled trial. Medicine (Baltimore). 2021 Apr 2;100(13):e25289. doi: 10.1097/MD.0000000000025289.

    PubMed 33787615
  • Gebhart JJ, Weinberg DS, Bohl MS, Liu RW. Relationship between pelvic incidence and osteoarthritis of the hip. Bone Joint Res. 2016 Feb;5(2):66-72. doi: 10.1302/2046-3758.52.2000552.

    PubMed 26912384
  • Bannuru RR, Osani MC, Vaysbrot EE, Arden NK, Bennell K, Bierma-Zeinstra SMA, Kraus VB, Lohmander LS, Abbott JH, Bhandari M, Blanco FJ, Espinosa R, Haugen IK, Lin J, Mandl LA, Moilanen E, Nakamura N, Snyder-Mackler L, Trojian T, Underwood M, McAlindon TE. OARSI guidelines for the non-surgical management of knee, hip, and polyarticular osteoarthritis. Osteoarthritis Cartilage. 2019 Nov;27(11):1578-1589. doi: 10.1016/j.joca.2019.06.011. Epub 2019 Jul 3.

    PubMed 31278997

Questions about this trial

What is this clinical trial studying?

A study testing Exercise in people with Hip Osteoarthritis, run by Izmir Katip Celebi University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain Intensity (time frame: From enrollment to the end of treatment at 12 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06783452, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Mar 2026.

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