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Heart Rate Variability and Erectile Function in Younger Men: A Pilot Study

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Abstract

Erectile dysfunction (ED) in younger men is an increasing concern. In middle aged and older men, ED was related to lower resting heart rate variability (HRV), but research in younger men is lacking. The present study examined, in a nonclinical sample of 105 men between 18 and 39 years, the association of ED with several parameters of resting HRV. Scores of the 5-item version of the International Index of Erectile Function (IIEF-5) below 22 were considered as indicating ED. Eighteen men (17.1%) reported ED (mild in 16, mild to moderate in 2). Welch's tests revealed that ED was associated with lower low-frequency power (LF), lower high-frequency power (HF), lower standard deviation of interbeat intervals, and lower standard deviation of the heart rate, which is influenced by both sympathetic and parasympathetic activity. After removing outliers, ED was unrelated to HF. In younger men, erections might be facilitated by a combination of higher parasympathetic tone and relatively higher sympathetic tone in the heart, as indicated by LF and greater standard deviation of the heart rate, a largely overlooked parameter in HRV research.

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Acknowledgements

This work was supported by Fundação para a Ciência e Tecnologia (FCT) (Grant Numbers FRH/BPD/76130/2011 and UID/PSI/04810/2013) and by Fundação BIAL (Grant Number 103/12).

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Correspondence to Rui Miguel Costa.

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Costa, R.M., Mangia, P., Pestana, J. et al. Heart Rate Variability and Erectile Function in Younger Men: A Pilot Study. Appl Psychophysiol Biofeedback 46, 235–242 (2021). https://doi.org/10.1007/s10484-020-09499-4

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  • DOI: https://doi.org/10.1007/s10484-020-09499-4

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