A validation study of ambulatory measurement of biological rhythms.

A validation study of ambulatory measurement of biological rhythms. - A validation study of ambulatory measurement of biological rhythms.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000020178

Enrollment

Registered

2015-12-13

Start date

2015-11-10

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

We will conduct measurement at a climate chamber with standardized environment (22 degree C, 30lux) at the initial night from 8PM to 7AM. In addition, we will measure bed time and rising time at home

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Male and female with eligible age (>=20, <60 years old).

Exclusion criteria

Exclusion criteria: Sever insomnia and depression.

Design outcomes

Primary

Measure	Time frame
Based on the measurement data of bed time/rising time for 7 days using two methods such as ambulatory posture sensor and self-reported sleep diary, we will assess the agreement between the two methods in terms of mean difference and correlation. Of whole session for 7 days, the measurement at the first night from 8 PM to 7 AM was conducted at climate chamber with standardized environment (22 degree C, <30lux). For the rest of session, the measurement was continued at real life situation at natural home settings.	—

Measure

Time frame

Based on the measurement data of bed time/rising time for 7 days using two methods such as ambulatory posture sensor and self-reported sleep diary, we will assess the agreement between the two methods in terms of mean difference and correlation. Of whole session for 7 days, the measurement at the first night from 8 PM to 7 AM was conducted at climate chamber with standardized environment (22 degree C, <30lux). For the rest of session, the measurement was continued at real life situation at natural home settings.

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Secondary

Measure	Time frame
Based on the measurement data of sleep parameters for 7 nights using two methods such as actigraph and EEG, we will assess the agreement between the two methods in terms of mean difference and correlation. Based on the measurement data of daytime BP, nighttime BP, dipping, and morning BP surge for 3 days using two methods such as tonometric ABPM and conventional ABPM, we will assess the agreement between the two methods in terms of mean difference and correlation.	—

Measure

Time frame

Based on the measurement data of sleep parameters for 7 nights using two methods such as actigraph and EEG, we will assess the agreement between the two methods in terms of mean difference and correlation. Based on the measurement data of daytime BP, nighttime BP, dipping, and morning BP surge for 3 days using two methods such as tonometric ABPM and conventional ABPM, we will assess the agreement between the two methods in terms of mean difference and correlation.

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Countries

Japan

Contacts

Public ContactKeigo Saeki

Nara Medical University School of Medicine Department of community health and epidemiology

saekik@naramed-u.ac.jp0744-22-3051(2244)

Outcome results