UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000061521 |
|---|---|
| Receipt number | R000070399 |
| Scientific Title | Effects of Moderate-Intensity Underwater Recumbent Ergometer Exercise at Different Water Temperatures on Renal Hemodynamics |
| Date of disclosure of the study information | 2026/05/11 |
| Last modified on | 2026/05/11 13:12:50 |
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Basic information
Public title
Effects of Moderate-Intensity Underwater Recumbent Ergometer Exercise at Different Water Temperatures on Renal Hemodynamics
Acronym
The WT-URE-RH Study
Scientific Title
Effects of Moderate-Intensity Underwater Recumbent Ergometer Exercise at Different Water Temperatures on Renal Hemodynamics
Scientific Title:Acronym
The WT-URE-RH Study
Region
| Japan |
Condition
Condition
healthy adults
Classification by specialty
| Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
This study aims to determine the effects of moderate-intensity continuous underwater recumbent ergometer exercise at different water temperatures on renal hemodynamics in healthy young adults.
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Renal artery maximum blood flow velocity (MnV)
Key secondary outcomes
Heart rate; Cardiac parasympathetic nervous activity (LnHF); Blood pressure; Rating of perceived exertion (RPE); Oxygen uptake (VO2); Urine volume.
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
Active
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment
Intervention
No. of arms
3
Purpose of intervention
Educational,Counseling,Training
Type of intervention
| Other |
Interventions/Control_1
15 minutes of underwater recumbent ergometer exercise at 26 degrees Celsius water temperature
Interventions/Control_2
15 minutes of underwater recumbent ergometer exercise at 36 degrees Celsius water temperature
Interventions/Control_3
15 minutes of underwater recumbent ergometer exercise at 31 degrees Celsius water temperature (Control condition)
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
| 18 | years-old | <= |
Age-upper limit
| 30 | years-old | > |
Gender
Male
Key inclusion criteria
1. No abnormalities in electrocardiographic findings or renal function as confirmed by a health checkup.
2. Agreement to participate in this study after receiving an explanation of its purpose.
Key exclusion criteria
1. Musculoskeletal disorders of the lower limbs that may interfere with pedaling exercise.
2. Current smoking.
3. Allergy to zinc, acrylic materials, or alcohol used in the measurement procedures.
4. Presence of an accessory renal artery with a vessel diameter comparable to that of the main renal artery.
Target sample size
19
Research contact person
Name of lead principal investigator
| 1st name | Kumiko |
| Middle name | |
| Last name | ONO |
Organization
Kobe University
Division name
Graduate School of Health Sciences
Zip code
654-0142
Address
7-10-2 Tomogaoka, Suma, Kobe, Hyogo, JAPAN
TEL
0787922555
onoku@tiger.kobe-u.ac.jp
Public contact
Name of contact person
| 1st name | Kumiko |
| Middle name | |
| Last name | ONO |
Organization
Kobe University
Division name
Graduate School of Health Sciences
Zip code
6540142
Address
7-10-2 Tomogaoka, Suma, Kobe, Hyogo, JAPAN
TEL
078-792-2555
Homepage URL
onoku@tiger.kobe-u.ac.jp
Sponsor or person
Institute
Kobe University
Institute
Department
Personal name
Funding Source
Organization
Self funding
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
Kobe University Graduate School of Health Sciences, Health Sciences Ethics Committee
Address
7-10-2 Tomogaoka, Suma, Kobe, Hyogo, JAPAN
Tel
0787964502
syomu2@ams.kobe-u.ac.jp
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
| 2026 | Year | 05 | Month | 11 | Day |
Related information
URL releasing protocol
Publication of results
Unpublished
Result
URL related to results and publications
Number of participants that the trial has enrolled
Results
Results date posted
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Participant flow
Adverse events
Outcome measures
Plan to share IPD
IPD sharing Plan description
Progress
Recruitment status
Enrolling by invitation
Date of protocol fixation
| 2026 | Year | 01 | Month | 07 | Day |
Date of IRB
| 2026 | Year | 01 | Month | 28 | Day |
Anticipated trial start date
| 2026 | Year | 02 | Month | 25 | Day |
Last follow-up date
| 2027 | Year | 03 | Month | 31 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
Management information
Registered date
| 2026 | Year | 05 | Month | 11 | Day |
Last modified on
| 2026 | Year | 05 | Month | 11 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000070399
