Comparison of Heart Rate Variability Analysis Durations and Their Relationship With Blood Pressure

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Conditions studied: Heart Rate Variability

In brief

This observational study aims to compare heart rate variability (HRV) parameters obtained from different analysis durations in healthy adults and to examine how these parameters relate to resting blood pressure values. HRV is a noninvasive measure commonly used to assess autonomic nervous system activity. Standard short-term HRV analysis is typically based on 5-minute recordings, but shorter and longer analysis durations are also used in research and practice. This study will evaluate whether HRV values derived from 1-minute, 5-minute, 10-minute, and 20-minute analysis windows differ from one another and whether their relationships with systolic blood pressure, diastolic blood pressure, and mean arterial pressure change according to analysis duration. Participants will attend a single study visit. After a rest period, resting blood pressure and pulse will be measured, and a continuous HRV recording will be obtained using a chest strap device. The study is designed to provide methodological information on the comparability of different HRV analysis durations under the same physiological conditions.

Key facts

Study ID

NCT07531992

Run by

Sinop University

People needed

40

Starts

2026-05-01

Expected to finish

2026-09-15

Last updated by the study team

2026-04-15

Who can join

Age: 18 and older, up to 40. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy adults aged 18 to 40 years
• Willing and able to provide informed consent
• Able to comply with pre-assessment instructions, including restrictions related to caffeine intake and strenuous physical activity
• No condition preventing heart rate variability and blood pressure measurements

You may not qualify if…

• History of diagnosed cardiovascular, neurological, or autonomic nervous system disease
• Known arrhythmia or pacemaker use
• Regular use of medications that may affect heart rate variability, such as beta blockers or antiarrhythmic drugs
• Acute infection, fever, or any condition affecting general health status on the day of assessment
• Severe motion artifact during measurement or technically unusable recordings

Where it is running

• Artvin Coruh University, Artvin Vocational School, Disabled Care and Rehabilitation Laboratory, Artvin, — Artvin, Turkey (Türkiye)

Full record on ClinicalTrials.gov

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