Long-Term Follow-up of the Circadian Rhythm of Heart Rate and Heart Rate Variability in Healthy Elderly Patients

Tasaki, Hirofumi; Serita, Takumi; Ueyama, Chiaki; Kitano, Kouei; Seto, Shinji; Yano, Katsusuke

doi:10.1253/circj.70.889

Cited by 17 publications

(17 citation statements)

References 34 publications

(30 reference statements)

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“…However, SDRR, S and n indexes show a little increase in the oldest group. This effect is not casual; it has also been described by other authors with a larger population [23,38] and will be discussed in the next topic.…”

Section: Resultssupporting

confidence: 74%

Heart Rate Variability Complexity in the Aging Process

Tejera

Plain

Portelinha³

et al. 2007

Computational and Mathematical Methods in Medicine

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In the present work, we propose a discrete model to the characterization of heart rate variability (HRV) complexity in the aging process of healthy subjects. We apply the Shannon entropy on the basis of an alternative way to probability calculation and to define a new index taking into consideration the transition probability that is related to the physiological complexity of the system. Our results suggest that in the aging process the capability response decreases according to the reduction of the physiological complexity. In the oldest group, an alternative mechanism emerges to compensate for this lack of capability; however, this effect does not increase the physiological complexity. Concomitantly, we provide some physiological explanation for our results.

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Section: Resultssupporting

confidence: 74%

Heart Rate Variability Complexity in the Aging Process

Tejera

Plain

Portelinha³

et al. 2007

Computational and Mathematical Methods in Medicine

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“…Although, we cannot exclude that the HRV spectrum analysis could be less reliable in the postmenopausal group (considering also the influence of female hormones on autonomic nerve function), the HRV is widely used as valid index of autonomic asset also in elderly persons (de Resende et al 2006;Dietrich et al 2006;Tasaki et al 2006). Although different autonomic functional analyzes should be utilized to confirm our findings, the methods of this experiment are rigorous so that we can reasonably exclude errors of evaluations.…”

Section: Discussionmentioning

confidence: 77%

Activity of autonomic nervous system is related to body weight in pre-menopausal, but not in post-menopausal women

Monda

Messina

Vicidomini

et al. 2006

Nutritional Neuroscience

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This study analyzed vegetative modulation, expressed as heart rate variability (HRV) power spectral analysis, in lean and obese women at pre-menopausal or post-menopausal age to reveal possible differences in menopause-related autonomic activity in lean and obese subjects. Sedentary women (n = 40) were divided in four groups: pre-menopausal lean and obese women, post-menopausal lean and obese subjects. The HRV-power spectrum was evaluated on a 5-min long ECG recording. The absolute values of the spectrum were summed in the following frequencies: a low-frequency (0.04-0.15 Hz; LF) and high-frequency (0.15-0.40; HF) range. LF and HF were values used to estimate the sympathetic and parasympathetic activity. LF and HF values of pre-menopausal obese women are lower than values of lean women. The menopause induced a same decrease in LF and HF values in lean and obese subjects, so that no difference was found in post-menopausal groups. This experiment indicates that modifications of autonomic modulation can be included among factors related to obesity in pre-menopausal, but not post-menopausal women.

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“…However, the increases in HRs with age in the daytime have been shown to be comparable to those in the nighttime, as our previous study on the same subject showed. 16,17) Accordingly, the cause of the increases in HRs in this study might be a factor, such as metabolism, which is not affected by daily activities, but is affected by aging to the same extent in the daytime as in the nighttime.…”

Section: Discussionmentioning

confidence: 78%

Longitudinal Age-Related Changes in 24-Hour Total Heart Beats and Premature Beats and Their Relationship in Healthy Elderly Subjects

et al. 2006

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SUMMARYThe aim of this study was to conduct a longitudinal follow-up on age-related changes in 24-hour total heart beats (THBs) and total premature beats and their correlations in healthy elderly subjects. In 15 healthy elderly subjects (mean age, 70.0 ± 4.1, age range at 1st recording, 64 to 80 years, 10 females, 5 males), we conducted Holter monitoring twice at an interval of 15 years and analysed age-related changes in THBs, atrial premature beats (APBs), and ventricular premature beats (VPBs), as well as their correlations.The results indicated that THBs, APBs, and VPBs all significantly increased with age in the healthy elderly subjects at a mean age of 70.0 ± 4.1 (THB: 91074.1 ± 11515.3 versus 99457.5 ± 12131.0; P = 0.0004, APB:119.2 ± 97.8 versus 884.4 ± 1193.8; P = 0.0008, VPB: 15.2 ± 53.6 versus 140.7 ± 228.9; P = 0.0328). Moreover, we divided the subjects into increase and nonincrease groups based on the age-related changes in APB and VPB for 15 years ([n]; Inc-APB: Noninc-APB = 6 : 9, Inc-VPB: Noninc-VPB = 5 : 10). In the increase groups, premature beats tended to increase in proportion to changes in THBs with age (APB: Y = 207.488 + 0.136 * X, r = 0.848, P = 0.0303; VPB: Y = -27.594 + 0.028 * X, r = 0.727, P = 0.1921).In conclusion, this 15-year follow-up of Holter recordings in healthy elderly subjects revealed that THBs, APBs, and VPBs increased with age, and that the increases in premature beats, especially APBs, were in proportion to those in THBs. (Int Heart J 2006; 47: 549-563) Key words: 24-hour total heart beat, Atrial premature beat, Ventricular premature beat, Healthy elderly subject, Age-related change IN general, in healthy adults younger than 70 years old, maximum heart rate (HR) on exercise, maximum and mean HR during Holter monitoring, and intrinsic HR after pharmacological autonomic block are known to decrease with age.

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Long-Term Follow-up of the Circadian Rhythm of Heart Rate and Heart Rate Variability in Healthy Elderly Patients

Cited by 17 publications

References 34 publications

Heart Rate Variability Complexity in the Aging Process

Heart Rate Variability Complexity in the Aging Process

Activity of autonomic nervous system is related to body weight in pre-menopausal, but not in post-menopausal women

Longitudinal Age-Related Changes in 24-Hour Total Heart Beats and Premature Beats and Their Relationship in Healthy Elderly Subjects

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