UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059543
Receipt number R000068110
Scientific Title The Effect of Eight Weeks of Knee-Specific and Whole-Body Aquatic Exercise on Strength, Balance, and Knee Proprioception in People with Knee Osteoarthritis
Date of disclosure of the study information 2025/10/27
Last modified on 2025/10/27 04:25:16

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Basic information

Public title

The Effect of Eight Weeks of Knee-Specific and Whole-Body Aquatic Exercise on Strength, Balance, and Knee Proprioception in People with Knee Osteoarthritis

Acronym

The Effect of Aquatic Exercise on Strength, Balance, and Knee Proprioception in People with Knee Osteoarthritis

Scientific Title

The Effect of Eight Weeks of Knee-Specific and Whole-Body Aquatic Exercise on Strength, Balance, and Knee Proprioception in People with Knee Osteoarthritis

Scientific Title:Acronym

The Effect of Aquatic Exercise on Strength, Balance, and Knee Proprioception in People with Knee Osteoarthritis

Region

Asia(except Japan)


Condition

Condition

knee osteoarthritis

Classification by specialty

Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

1. To survey the effect of aquatic exercise on performance

Basic objectives2

Others

Basic objectives -Others

1. To survey the effect of aquatic exercise on performance

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1. To survey the effect of aquatic exercise on performance

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Self control

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

3

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

45 years-old <=

Age-upper limit

60 years-old >=

Gender

Male and Female

Key inclusion criteria

1- A score of at least 39 on the WOMAC questionnaire (Bellamy, 2008), 2- Age between 45 and 60 years, 3- Ability to perform exercises in water, 4- No joint injection or surgery in the past 6 months, 5- No use of oral anti-inflammatory drugs in the past 1 week (before starting the exercise protocol)

Key exclusion criteria

The exclusion criteria were: 1- fear of water, 2- excessive absence (absence of 2 consecutive sessions and 3 non-consecutive sessions), and 3- unwillingness to continue participating in the study.

Target sample size

45


Research contact person

Name of lead principal investigator

1st name Seyed Hossein
Middle name
Last name Hosseinimehr

Organization

University of Kurdistan

Division name

Department of Physical Education and Sport Sciences

Zip code

6617715175

Address

pasdaran

TEL

989173034237

Email

s.h.hosseinimehr@uok.ac.ir


Public contact

Name of contact person

1st name Seyed Hossein
Middle name
Last name Hosseinimehr

Organization

University of Kurdistan

Division name

Department of Physical Education and Sport Sciences

Zip code

6617715175

Address

pasdaran

TEL

989173034237

Homepage URL


Email

s.h.hosseinimehr@uok.ac.ir


Sponsor or person

Institute

University of Kurdistan

Institute

Department

Personal name



Funding Source

Organization

University of Kurdistan

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

University of Kurdistan

Address

pasdaran

Tel

989173034237

Email

s.h.hosseinimehr@uok.ac.ir


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 27 Day


Related information

URL releasing protocol

ok

Publication of results

Unpublished


Result

URL related to results and publications

https://research.uok.ac.ir/~hosseinimehr/

Number of participants that the trial has enrolled

45

Results

The results indicated that both experimental groups (whole-body and knee-specific) demonstrated significant improvements in all dependent variables, including muscle strength, static balance, dynamic balance, and proprioception, after the hydrotherapy period (p<0.001).

Results date posted

2025 Year 10 Month 27 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

The results indicated that both experimental groups (whole-body and knee-specific) demonstrated significant improvements in all dependent variables, including muscle strength, static balance, dynamic balance, and proprioception, after the hydrotherapy period (p<0.001).

Participant flow

Screening stage
At this stage, participants were selected based on inclusion and exclusion criteria and completed the WOMAC questionnaire to diagnose KOA. Anthropometric characteristics (such as age, height, mass, and body mass index) were recorded.
Pre-tests
In the pre-test, strength, balance (static and dynamic), and knee proprioception were measured and the results were recorded.
Exercise protocols
Participants in the experimental groups participated in a total of 24 training sessions (three times a week for two months). The training process was designed based on the principle of overload.
Tests during the training protocol
During the training period, the subjects underwent the same pre-test tests again after 4 weeks, and the results were recorded and analyzed.
Post-tests
Also, at the end of the training period, the subjects were again subjected to the same pre-test tests, and the results were recorded and analyzed.

Adverse events

fear of water

Outcome measures

Isometric strength of the quadriceps, hamstrings, hip adductors, hip abductors, dorsiflexors, and plantar flexors was measured using a Manual Muscle Tester according to validated protocols. Before the start of the assessment, subjects completed a familiarization session with the test procedure and a five-minute general warm-up to reduce learning effects and risk of injury. Each effort was performed in isometric conditions with three consecutive repetitions, and the average was recorded as the final result.

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Enrolling by invitation

Date of protocol fixation

2024 Year 04 Month 04 Day

Date of IRB

2025 Year 10 Month 27 Day

Anticipated trial start date

2024 Year 04 Month 05 Day

Last follow-up date

2024 Year 05 Month 05 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 10 Month 27 Day

Last modified on

2025 Year 10 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068110