Reliability of Heart Rate Variability Measurements
Author Information
Author(s): Schumann Andy, Lukas Franziska, Rieger Katrin, Gupta Yubraj, Bär Karl-Jürgen
Primary Institution: Jena University Hospital
Hypothesis
How stable are resting heart rate variability measurements in healthy individuals over a one-week period?
Conclusion
The study found good test-retest agreement for standard heart rate variability features, indicating reliable measurements.
Supporting Evidence
- Mean heart rate showed high stability with an ICC of 0.81.
- RMSSD had lower concordance with an ICC of 0.75.
- Participants were tested in a controlled environment to ensure data quality.
Takeaway
This study shows that measuring heart rate variability is reliable if done correctly, which is important for understanding heart health.
Methodology
Participants underwent two lab sessions within a week where their heart rate and respiration were recorded at rest.
Limitations
The study only included healthy individuals, which may limit the generalizability of the findings to other populations.
Participant Demographics
51 healthy volunteers (35 women, 16 men, average age 38 years)
Statistical Information
P-Value
0.81 for heart rate, 0.75 for RMSSD
Confidence Interval
[0.71; 0.88] for heart rate, [0.63; 0.84] for RMSSD
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website