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Distribution of heart rate variability in the upper grades of elementary school who can attend school

Distribution of heart rate variability in the upper grades of elementary school where school can be attended - NHRV test

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000041941
Enrollment
28
Registered
2020-12-20
Start date
2020-09-14
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

Elementary school seniors who can attend school

Interventions

None listed

Sponsors

Ikeya Clinic
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Elementary school children who can attend school and take regular classes

Exclusion criteria

Exclusion criteria: Children who are unable to take regular classes and are only in the infirmary

Design outcomes

Primary

MeasureTime frame
HRV is measured for elementary school seniors, CVRR obtained from SDNN and Mean from the time series analysis, VLF, LF, HF, Total Power, etc. from the frequency analysis by AR-Power Spectrum (Non-Detrend), naturally converted numerical values are added, and the average value and standard deviation are obtained.—

Secondary

MeasureTime frame
Using the results of frequency analysis, we confirm the conditions for obtaining a normal distribution for raw data and natural random conversion values.—

Countries

Japan

Contacts

Public ContactMitsuru Ikeya

Ikeya Clinic Dean

ikeya-25@fancy.ocn.ne.jp0537-22-0433

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026