Why the study?
The positive association between heart rate variability and cardiorespiratory fitness in youth is unclear, and the influence of heart rate on data analysis remains unestablished.
This short communication highlights the need to account for heart rate when analyzing the relationship between heart rate variability and cardiorespiratory fitness in youth.
Answers are grounded in this paper and cite their sources.
Adjusting for heart rate may clarify inconsistent youth HRV-CRF links; leaves open whether positive associations persist after correction.
The positive association between heart rate variability and cardiorespiratory fitness in youth populations is unclear. In this regard, several methodological aspects related to heart rate variability analysis could partially explain the disagreement between studies. To the best of the authors' knowledge, the influence of the heart rate on data analysis is unclear. In the present short communication, we discuss the impact of the heart rate on the associations between heart rate variability and cardiorespiratory fitness in youth. In addition, we proposed some aspects that should be considered for statistical analyses when the relationship between heart rate variability and cardiorespiratory fitness is studied. Finally, we should acknowledge that these recommendations may be applicable for other health-related outcomes different than cardiorespiratory fitness (e.g., inflammatory markers, cognition, cardiovascular disease status).
No takes yet. Share an insight, caveat, or question.
Plaza‐Florido et al. (2023) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: