Acceso Abierto
Validity and Reliability of Short-Term Heart Rate Variability Parameters in Older People in Response to Physical Exercise
- 1
- 2Universidad Católica del Maule
- 3Universidad de Santiago de Chile
- 4Universidad Santo Tomas, Santiago
- 5Universidad de Antofagasta
- 6Universidad de Cundinamarca
- 7
Revista
international journal of environmental research and public health
ISSN
1660-4601
1661-7827
Acceso abierto
gold
Volumen
20
Background: Currently, and to the best of our knowledge, there is no standardized protocol to measure the effect of low- to moderate-intensity physical exercise on autonomic modulation focused in older people. Aim: Validate a test–retest short-term exercise protocol for measuring the autonomic response through HRV in older people. Methods: A test–retest study design was used. The participants were selected through intentional non-probabilistic sampling. A total of 105 older people (male: 21.9%; female: 78.1%) were recruited from a local community. The assessment protocol evaluated HRV before and immediately after the 2-min step test. It was performed twice on the same day, considering a time of three chronological hours between the two measurements. Results: The posterior distribution of estimated responses in the Bayesian framework suggests moderate to strong evidence favoring a null effect between measurements. In addition, there was moderate to robust agreement between heart rate variability (HRV) indices and assessments, except for low frequency and very low frequency, which showed weak agreement. Conclusions: Our results provide moderate to strong evidence for using HRV to measure cardiac autonomic response to moderate exercise, suggesting that it is sufficiently reliable to show similar results to those shown in this test–retest protocol.