UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000059793
Receipt number R000068362
Scientific Title Acute Effects of Normobaric Hypoxia on Skeletal Muscle Microvascular Function
Date of disclosure of the study information 2025/11/17
Last modified on 2025/11/16 11:52:00

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Basic information

Public title

Acute Effects of Normobaric Hypoxia on Skeletal Muscle Microvascular Function

Acronym

Acute Effects of Normobaric Hypoxia on Skeletal Muscle Microvascular Function

Scientific Title

Acute Effects of Normobaric Hypoxia on Skeletal Muscle Microvascular Function

Scientific Title:Acronym

Acute Effects of Normobaric Hypoxia on Skeletal Muscle Microvascular Function

Region

Japan


Condition

Condition

Sleep Apnea Syndrome

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To elucidate the acute effects of hypoxic exposure on skeletal muscle microvascular function, thereby contributing to understanding the impact of hypoxic exposure on vascular function in modern society.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Microvascular Function of the Gastrocnemius Muscle Before and After Exposure to 15% Oxygen Concentration

Key secondary outcomes

Heart rate, stroke volume, cardiac output, mean arterial pressure, and SpO2 before and after a 10-minute exposure intervention at 15% inspired oxygen concentration, and during the intervention


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

YES

Dynamic allocation

NO

Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

Attach a mask to a balloon filled with air containing 15% oxygen concentration and inhale the air from the balloon for 10 minutes.

Interventions/Control_2

Do not connect to the balloon; inhale room air for 10 minutes.

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

18 years-old <

Age-upper limit

30 years-old >

Gender

Male and Female

Key inclusion criteria

Participants must be between 18 and 30 years of age at the time consent is obtained.
Participants must have received a thorough explanation regarding this research and provided written consent of their own free will after demonstrating sufficient understanding.

Key exclusion criteria

Individuals aged 31 years or older
Individuals with a history of cardiovascular disease or currently receiving medication for such conditions
Individuals currently taking medication or supplements
Individuals with a regular exercise routine (performing at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week)
Individuals with a history of smoking
Other individuals deemed unsuitable for the study by the principal investigator

Target sample size

16


Research contact person

Name of lead principal investigator

1st name Takuro
Middle name
Last name Yoshino

Organization

Niigata University of Health and Welfare

Division name

Graduate School of Health and Welfare Studies Department of Health Sciences Division of Physical Therapy

Zip code

950-3198

Address

1398 Shimamicho, Kita-ku, Niigata City, Niigata Prefecture

TEL

090-6795-4327

Email

hpm25022@nuhw.ac.jp


Public contact

Name of contact person

1st name Yoshino
Middle name
Last name Takuro

Organization

Niigata University of Health and Welfare

Division name

Graduate School of Medical and Welfare Sciences, Department of Health Sciences, Physical Therapy

Zip code

950-3198

Address

1398 Shimami-cho, Kita Ward, Niigata City, Niigata Prefecture

TEL

090-6795-4327

Homepage URL


Email

hpm25022@nuhw.ac.jp


Sponsor or person

Institute

Niigata University of Health and Welfare

Institute

Department

Personal name



Funding Source

Organization

Ministry of Education, Culture, Sports, Science and Technology

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Niigata University of Health and Welfare

Address

1398 Shimamicho, Kita-ku, Niigata City, Niigata Prefecture

Tel

025-257-4455

Email

info@nihw.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

2025 Year 11 Month 17 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

Preinitiation

Date of protocol fixation

2025 Year 10 Month 16 Day

Date of IRB


Anticipated trial start date

2025 Year 11 Month 11 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

2025 Year 11 Month 16 Day

Last modified on

2025 Year 11 Month 16 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068362