Self-recorded heart rate variability profiles are associated with health and lifestyle markers in young adults

Grosicki, Gregory J.; Culver, Meral N.; McMillan, Nathan K.; Cross, Brett L.; Montoye, Alexander H.K.; Riemann, Bryan L.; Flatt, Andrew A.

doi:10.1007/s10286-022-00884-z

Cited by 6 publications

(7 citation statements)

References 55 publications

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“…As previously described [ 64 , 70 ], we placed a brachial cuff on the participant's right arm to acquire HR, brachial BP, and central BP using a SphygmoCor XCEL device (AtCor Medical, Naperville, IL, USA). Next, central arterial stiffness was assessed via cf-PWV, as previously described [ 71 ].…”

Section: Methodsmentioning

confidence: 99%

Acute beetroot juice reduces blood pressure in young Black and White males but not females

Grosicki¹,

Flatt²,

Cross³

et al. 2023

Redox Biology

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Section: Methodsmentioning

confidence: 99%

Acute beetroot juice reduces blood pressure in young Black and White males but not females

Grosicki¹,

Flatt²,

Cross³

et al. 2023

Redox Biology

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“…This may be relevant because lack of diurnal variation in HRV seems to be involved in the attenuation of nocturnal blood pressure dipping [ 8 ], which unfavorably affects long-term risk for cardiac events [ 42 ]. Moreover, reduced HRV parameters are associated with increased blood pressure and aortic stiffness in young adults [ 21 ], and are independent risk factors for cardiovascular diseases and cardiovascular and all-cause mortality [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

“…Time-domain parameters included the mean RR interval (reflects resting heart rate), standard deviation of normal-to-normal RR intervals (SDNN, reflects global variability), and root mean square of successive differences in RR intervals (RMSSD, reflects cardio-vagal control) [ 9 ]. These parameters were selected due to growing use in the field via portable and wearable devices [ 21 , 28 ]. Moreover, time-domain parameters are less confounded by respiration rate than spectral indices [ 29 ].…”

Section: Methodsmentioning

confidence: 99%

“…Diseases contribute to a diurnal cardio-autonomic profile in which little difference exists between HRV during morning and evening hours. Moreover, lower morning HRV has been associated with inferior cardiovascular and metabolic biomarkers in healthy young adults [ 21 ], and lifestyle factors such as sleep- [ 22 ] and meal timing [ 23 ] may influence morning HRV. However, whether morning HRV predicts the magnitude of its circadian variation in the absence of disease or is influenced by chronotype is unclear.…”

Section: Introductionmentioning

confidence: 99%

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Heart Rate Variability and Chronotype in Young Adult Men

et al. 2022

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Whether morning heart rate variability (HRV) predicts the magnitude of its circadian variation in the absence of disease or is influenced by chronotype is unclear. We aimed to quantify associations between (1) morning HRV and its diurnal change, and (2) morning HRV and a Morningness–Eveningness Questionnaire (MEQ)-derived chronotype. Resting electrocardiograms were obtained in the morning and evening on separate days in a counterbalanced order to determine the mean RR interval, root mean square of successive differences (RMSSD), and standard deviation of normal-to-normal RR intervals (SDNN) in 23 healthy men (24.6 ± 3.4 yrs; body mass index: 25.3 ± 2.8 kg/m2). The MEQ was completed during the first laboratory visit. Morning RMSSD and SDNN were significantly higher (Ps < 0.05) than evening values. Morning RMSSD and SDNN were associated with their absolute (Ps < 0.0001), and relative diurnal changes (Ps < 0.01). No associations were observed between HRV parameters and the MEQ chronotypes (Ps > 0.09). Morning HRV was a stronger determinant of its evening change than chronotype. Greater diurnal variation in HRV was dependent on higher morning values. Strategies to improve basal HRV may therefore support healthier cardio-autonomic circadian profiles in healthy young men.

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“…Increased PNS, or vagal activity, decreases HR and increases variability in the inter-beat intervals, i.e., increased heart rate variability (HRV). Higher HRV is associated with greater physiological flexibility, adaptability, and self-regulation [3] and superior health and lifestyle indicators [4]. Conversely, lower HRV is common in older adults [5] and is associated with smoking [6], physical inactivity [7], and diabetes [8].…”

Section: Introductionmentioning

confidence: 99%

Validity and Efficacy of the Elite HRV Smartphone Application during Slow-Paced Breathing

Vondrasek,

Riemann,

Grosicki

et al. 2023

Sensors

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Slow-paced breathing is a clinical intervention used to increase heart rate variability (HRV). The practice is made more accessible via cost-free smartphone applications like Elite HRV. We investigated whether Elite HRV can accurately measure and augment HRV via its slow-paced breathing feature. Twenty young adults completed one counterbalanced cross-over protocol involving 10 min each of supine spontaneous (SPONT) and paced (PACED; 6 breaths·min−1) breathing while RR intervals were simultaneously recorded via a Polar H10 paired with Elite HRV and reference electrocardiography (ECG). Individual differences in HRV between devices were predominately skewed, reflecting a tendency for Elite HRV to underestimate ECG-derived values. Skewness was typically driven by a limited number of outliers as median bias values were ≤1.3 ms and relative agreement was ≥very large for time-domain parameters. Despite no significant bias and ≥large relative agreement for frequency-domain parameters, limits of agreement (LOAs) were excessively wide and tended to be wider during PACED for all HRV parameters. PACED significantly increased low-frequency power (LF) for Elite HRV and ECG, and between-condition differences showed very large relative agreement. Elite HRV-guided slow-paced breathing effectively increased LF values, but it demonstrated greater precision during SPONT and in computing time-domain HRV.

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Self-recorded heart rate variability profiles are associated with health and lifestyle markers in young adults

Cited by 6 publications

References 55 publications

Acute beetroot juice reduces blood pressure in young Black and White males but not females

Acute beetroot juice reduces blood pressure in young Black and White males but not females

Heart Rate Variability and Chronotype in Young Adult Men

Validity and Efficacy of the Elite HRV Smartphone Application during Slow-Paced Breathing

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