Comparison of Linear and Nonlinear HRV Dynamics Across Exercise Intensities After Menopause

2020 ◽  
Vol 28 (1) ◽  
pp. 149-154
Author(s):  
Julia C. Orri ◽  
Elizabeth M. Hughes ◽  
Deepa G. Mistry ◽  
Antone Scala
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Postmenopausal Women ◽  
Maximal Exercise ◽  
Exercise Recovery ◽  
Active Recovery ◽  
Vigorous Exercise ◽  
Main Effect ◽  
Linear And Nonlinear

The authors compared the linear and nonlinear heart rate variability dynamics from rest through maximal exercise in postmenopausal women who trained at either moderate or high intensities. The outcome variables included the RR triangular index, TINN, SD1, SD2, SD1/SD2, DFA α1, DFA α2, and α1/α2. Maximal exercise reduced SD1, SD2, DFA α1, DFA α2, α1/α2, RRTri, and TINN in both groups and increased SD1/SD2 (p < .05). Two minutes of active recovery produced significant increases in SD1, SD2, DFA α1, and TINN, compared with exercise in both groups (p < .0001). There was also a significant main effect between groups for RRTri during exercise recovery, with the moderate group achieving higher levels (p < .04). The authors have shown that both moderate and vigorous exercise training can lead to a healthy response to maximal exercise and recovery, with the moderate group having a slightly improved recovery in the triangular index.

Eight weeks of moderate-intensity exercise training increases heart rate variability in sedentary postmenopausal women

2004 ◽  
Vol 147 (5) ◽  
pp. e8-e15 ◽  
Author(s):  
Radim Jurca ◽  
Timothy S Church ◽  
Gina M Morss ◽  
Alexander N Jordan ◽  
Conrad P Earnest
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Postmenopausal Women ◽  
Moderate Intensity ◽  
Moderate Intensity Exercise

Assessment of Heart Rate Variability After Maximal Exercise in Trained Postmenopausal Women

2017 ◽  
Vol 49 (5S) ◽  
pp. 900
Author(s):  
Julia C. Orri ◽  
Elizabeth M. Hughes ◽  
Deepa G. Mistry ◽  
Antone H. Scala
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Postmenopausal Women ◽  
Maximal Exercise

scholarly journals Heart Rate Variability Characteristics in Sedentary Postmenopausal Women Following Six Months of Exercise Training: The DREW Study

PLoS ONE ◽  
2008 ◽  
Vol 3 (6) ◽  
pp. e2288 ◽  
Author(s):  
Conrad P. Earnest ◽  
Carl J. Lavie ◽  
Steven N. Blair ◽  
Timothy S. Church
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Postmenopausal Women

Isoflavone does not promote additional effects on heart rate variability of postmenopausal women performing combined exercise training: a clinical, controlled, randomized, double-blind study

2020 ◽  
Vol 45 (4) ◽  
pp. 362-367
Author(s):  
Igor Moraes Mariano ◽  
Victor Hugo de Freitas ◽  
Juliene Gonçalves Costa Dechichi ◽  
Jaqueline Pontes Batista ◽  
Tállita Cristina Ferreira de Souza ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Standard Deviation ◽  
Exercise Training ◽  
Postmenopausal Women ◽  
High Frequency ◽  
Baseline Characteristic ◽  
Time Effects ◽  
Combined Exercise ◽  
Combined Exercise Training

The aim of the study was to investigate the effects of ingesting isoflavones associated with combined aerobic and resistance exercise training on heart rate variability (HRV) indices in postmenopausal women. Twenty-eight healthy postmenopausal women performed 10 weeks of combined exercise training associated with isoflavone (n = 16) or placebo (n = 12) supplementation. The RR intervals (RRi) were collected for 20 min using a heart rate monitor. Analysis of HRV was performed in time (mean squared difference of successive RRi (RMSSD), standard deviation of all normal RRi (SDNN), and percentage of adjacent RRi differing by more than 50 ms (pNN50)), frequency (low-frequency percentage (LF%), high-frequency percentage (HF%), and low-/high-frequency ratio (LF/HF)), and nonlinear domains (standard deviation of the instantaneous variability of the beat-to-beat interval (SD1), long-term variability of the continuous RRi (SD2), and their ratio (SD2/SD1)). Student’s t test did not show differences between groups in any general baseline characteristic variables. The results of the generalized estimating equation tests did not demonstrate interaction or group effects for any HRV indices. However, the results reported time effects for mean RR (p < 0.001), RMSSD (p = 0.044), and SD1 (p = 0.044), with increases in these indices in response to exercise training. There were no time effects for LF%, HF%, LF/HF, SDNN, pNN50, SD2, or SD2/SD1. In conclusion, isoflavone supplementation did not promote additional effects on HRV indices of postmenopausal women subjected to 10 weeks of combined exercise training. Novelty Combined training improves heart rate variability in postmenopausal women. Isoflavone supplementation did not promote additional effects on heart rate variability in postmenopausal women.

scholarly journals Assessment of HRV After Maximal Exercise in Trained Postmenopausal Women

2018 ◽  
pp. 703-709
Author(s):  
J. C. ORRI ◽  
E. M. HUGHES ◽  
D. G. MISTRY ◽  
A. SCALA
Keyword(s):  
Postmenopausal Women ◽  
Older Women ◽  
Repeated Measures ◽  
Maximal Exercise ◽  
Low Frequency ◽  
Active Recovery ◽  
Vigorous Exercise ◽  
Factorial Anova ◽  
Vo2max Test ◽  
Time Periods

Increased parasympathetic tone achieved with endurance training may provide cardioprotection after menopause. To compare heart rate variability (HRV) from rest through maximal exercise and recovery in trained postmenopausal women. Thirty-six postmenopausal women who self-reported training at either moderate (MOD; 3-5.9 METS; 58.9±4.4 year) or vigorous (VIG; >6 METS; 59.7±5.2 year) intensities participated. HRV was measured for 5 min in the supine position, in the last minute of the VO2max test and after 2 min of active recovery. HRV in MOD and VIG was compared using a factorial ANOVA with repeated measures on time. MOD and VIG responded similarly over the three time periods for root mean square of sequential deviations (rMSSD), and high (HF) and low frequency (LF) power (p>0.05). Maximal exercise lowered rMSSD (3.3±0.08 vs. 1.2±0.06) and lnLF (4.1±0.05 vs. 3.3±0.13) and increased lnHF (3.3±0.14 vs. 4.0±0.10; p<0.01) from resting. However, active recovery restored lnHF (3.3±0.11) and lnLF (4.1±0.08) from maximal values (p<0.01). Our findings suggest that moderate and vigorous exercise training may enhance HRV recovery following one bout of maximal exercise in older women.

Reproducibility of Heart Rate Variability Indices at Post-maximal Exercise

2020 ◽  
Vol 41 (08) ◽  
pp. 512-519 ◽  
Author(s):  
Jaqueline Alves Araújo ◽  
Tiago Peçanha ◽  
Fabiula Isoton Novelli ◽  
César Siqueira Aleixes Mello ◽  
Daniel Moreira-Gonçalves ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Coefficient Of Variation ◽  
Maximal Exercise ◽  
High Reliability ◽  
Active Recovery ◽  
Coefficient Corrélation ◽  
Agreement Coefficient ◽  
The Time Domain ◽  
Good Agreement

AbstractTo analyze whether heart rate variability is reproducible after maximal exercise, 11 men (22.1±3.2 years) performed four incremental exercise tests followed by passive or active recovery. There was high reliability (intraclass coefficient correlation: 0.72–0.96) and fair-to-excellent agreement (coefficient of variation: 7.81–22.09%) in passive recovery, as well as moderate-to-high reliability (intraclass coefficient correlation: 0.50–0.87) and good agreement (coefficient of variation: 11.08–20.89%) in active recovery for LnRMSSD index. There was moderate-to-high reliability (intraclass coefficient correlation: 0.51–0.81) and good agreement (coefficient of variation: 10.41–18.87%) in most of the analyzed time points, in both recovery types for LnSDNN. In both types of recovery, the time domain heart rate variability 5–10 min indices (passive: intraclass coefficient correlation : 0.87–0.88; coefficient of variation: 7.67–13.44%; active: intraclass coefficient correlation 0.59–0.80; coefficient of variation: 14.62–16.26%) presented higher intraclass coefficient correlation and lower coefficient of variation than the spectral heart rate variability indices (passive: intraclass coefficient correlation: 0.71–0.87; coefficient of variation: 12.33–34.21%; active: intraclass coefficient correlation: 0.46–0.77; coefficient of variation: 24.41–105.12%). The LnRMSSD and LnSDNN indices analyzed in 30 s segments and the heart rate variability 5–10 min indices after maximal exercise in untrained healthy men showed satisfactory reproducibility, regardless of the type of recovery, with the time-domain indices showing higher reproducibility than the frequency-domain indices.

Obesity does not Impair Ambulatory Cardiovascular and Autonomic Responses Post-exercise

2021 ◽  
Author(s):  
Gabriel Kolesny Tricot ◽  
Fabiula Isoton Isoton Novelli ◽  
Lucieli Teresa Cambri
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Diastolic Blood Pressure ◽  
Maximal Exercise ◽  
Young Men ◽  
Autonomic Modulation ◽  
Incremental Test ◽  
Post Exercise ◽  
Cardiac Autonomic Modulation ◽  
Main Effect

AbstractThis study aimed to assess whether obesity and/or maximal exercise can change 24 h cardiac autonomic modulation and blood pressure in young men. Thirty-nine men (n: 20; 21.9±1.8 kg·m−2, and n: 19; 32.9±2.4 kg·m−2) were randomly assigned to perform a control (non-exercise) and an experimental day exercise (after maximal incremental test). Cardiac autonomic modulation was evaluated through frequency domain heart rate variability (HRV). Obesity did not impair the ambulatory HRV (p>0.05), however higher diastolic blood pressure during asleep time (p=0.02; group main effect) was observed. The 24 h and awake heart rate was higher on the experimental day (p<0.05; day main effect), regardless of obesity. Hypotension on the experimental day, compared to control day, was observed (p<0.05). Obesity indicators were significantly correlated with heart rate during asleep time (Rho=0.34 to 0.36) and with ambulatory blood pressure(r/Rho=0.32 to 0.53). Furthermore, the HRV threshold workload was significantly correlated with ambulatory heart rate (r/Rho=− 0.38 to−0.52). Finally, ambulatory HRV in obese young men was preserved; however, diastolic blood pressure was increased during asleep time. Maximal exercise caused heart rate increase and 24h hypotension, with decreased cardiac autonomic modulation in the first hour, regardless of obesity.

Effect of exercise training on heart rate variability in healthy older adults

1999 ◽  
Vol 138 (3) ◽  
pp. 567-576 ◽  
Author(s):  
Phyllis K. Stein ◽  
Ali A. Ehsani ◽  
Peter P. Domitrovich ◽  
Robert E. Kleiger ◽  
Jeffrey N. Rottman
Keyword(s):  
Older Adults ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Healthy Older Adults
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