Heart rate variability and aerobic fitness

1993 ◽  
Vol 125 (3) ◽  
pp. 726-731 ◽  
Author(s):  
Ronald Edmond De Meersman
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Aerobic Fitness

Heart Rate Variability May Mediate the Association Between Aerobic Fitness and State Anxiety in Military Men

2007 ◽  
Vol 39 (Supplement) ◽  
pp. S451
Author(s):  
Amanda Miller ◽  
Jared P. Reis ◽  
Hyung Kim ◽  
Deborah L. Taylor ◽  
Marcus K. Taylor
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Aerobic Fitness ◽  
State Anxiety

Differences in heart rate variability between Asian and Caucasian children living in the same Canadian community

2006 ◽  
Vol 31 (3) ◽  
pp. 277-282 ◽  
Author(s):  
Katharine E Reed ◽  
Darren E.R Warburton ◽  
Crystal L Whitney ◽  
Heather A McKay
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Aerobic Fitness ◽  
Time Domain ◽  
High Frequency ◽  
Analysis Of Covariance ◽  
Fitness Testing ◽  
High Frequency Power ◽  
Asian Children ◽  
Frequency Power

Heart rate variability (HRV) is an umbrella term for a variety of measures that assess autonomic influence on the heart. Reduced beat-to-beat variability is found in individuals with a variety of cardiac abnormalities. A reduced HRV positively correlates with obesity, poor aerobic fitness, and increasing age. Racial (black-white) differences are apparent in adults and adolescents. We aimed to evaluate (i) Asian-Caucasian differences in HRV and (ii) differences in HRV between girls and boys. Sixty-two children (30 male (15 Caucasian, 15 Asian) and 32 female (15 Caucasian, 17 Asians)) with a mean age of 10.3 ± 0.6 y underwent 5 min resting HRV recording, fitness testing (Leger's 20 m shuttle), and self-assessed maturity. Outcome HRV measures were a ratio of low to high frequency power (LF:HF), standard deviation of R-R intervals (SDRR) and root mean square of successive R-R intervals (RMSSD). Data were compared between groups using analysis of covariance (ANCOVA). There were no race or sex differences for time domain variables, mean R-R, body mass index, or blood pressure. Compared with Caucasian children, Asian children displayed a higher adjusted (fitness, R-R interval) LF:HF ratio (72.9 ± 59.4 vs. 120.6 ± 85.3, p < 0.05). Girls demonstrated a higher adjusted LF:HF power than boys (117.2 ± 85.1 vs. 76.6 ± 62.4, p = < 0.05). In conclusion, Asian and Caucasian children display different frequency domain components of heart rate variability.Key words: autonomic nervous system, sympathetic, vagal, race, aerobic fitness, sex.

scholarly journals EVALUATION OF THE EFFICACY OF CARDAMOM AROMATHERAPY ON AEROBIC FITNESS & AUTONOMIC FUNCTIONS AMONG STUDENTS.

2011 ◽  
Vol 01 (01/03) ◽  
pp. 23-29
Author(s):  
Shrikant L. Patil ◽  
E. Sreekumaran ◽  
A.P. Krishna
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Aerobic Fitness ◽  
Minute Ventilation ◽  
Well Being ◽  
Physiological Effect ◽  
Exercise Group ◽  
Supporting Evidence ◽  
Elettaria Cardamomum ◽  
Significant Difference

Abstract Introduction: Aromatherapy is categorized as a form of complementary and alternative medicine (CAM), and has been steadily gaining popularity in today's society. Aromatherapy is considered by many to promote comfort, well-being and invigorating. However there appears to be insufficient supporting evidence to validate physiological changes that may reflect invigoration. Objectives: This study examined the physiological effects of cardamom (Elettaria cardamomum) aromatherapy as indicated by heart rate variability. Aerobic fitness is one of the non invasive and simplest parameters which help in accessing one's fitness. In this present study we have also evaluated the efficacy of aromatherapy on the individual's physical fitness. Methods: Total thirty healthy college students were selected as a subject who has attended four sessions in random order involving only exercise, aromatherapy and exercise combined. Each intervention lasted 15 minutes. Heart rate data were recorded for all sessions, and heart rate variability was analyzed. Aerobic fitness parameters also evaluated with the help of standard methods. Results: There was statistically significant difference in LF/HF between the two intervention studies. During this aromatherapy, physiological responses such as oxygen consumption, respiratory exchange ratio and minute ventilation were significantly altered among different groups. Aerobic fitness was observed higher in aromatherapy combined exercise group against the only exercise group. Conclusion: These results suggest significant physiological effect of cardamom (Elettaria cardamomum) aromatherapy interventions occurs in the autonomic nervous system as indicated by heart rate variability. The present study demonstrates that good estimated aerobic fitness was independently associated with aromatherapy and exercise.

Physical Activity and Aerobic Fitness are Positively Associated With Heart Rate Variability in Obese Adults

2014 ◽  
Vol 11 (8) ◽  
pp. 1614-1621 ◽  
Author(s):  
Kaisu Marjut Kaikkonen ◽  
Raija irmeli Korpelainen ◽  
Mikko P. Tulppo ◽  
Hannu Sakari Kaikkonen ◽  
Marja Liisa Vanhala ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Health Risks ◽  
Aerobic Fitness ◽  
High Frequency ◽  
Low Frequency ◽  
Aerobic Performance ◽  
Obese Adults ◽  
Frequency Power

Background:Autonomic nervous system (ANS) dysfunction and obesity are intrinsically related to each other. In normal-weight subjects physical activity (PA) and fitness are related to cardiovascular autonomic regulation, providing evidence that aerobic training may improve ANS functioning measured by heart rate variability (HRV). The goal of this study was to investigate the association between lifetime PA, aerobic fitness and HRV in obese adults.Methods:Participants included 107 (87 females) volunteers (mean age 44.5 years, median BMI 35.7) who completed health and lifestyle questionnaires and measurements of maximal aerobic performance, anthropometry and 24 h HRV.Results:In the multivariate linear regression analyses, lifetime physical activity explained 40% of the variance in normal R-R intervals (SDNN). Each 1-category increase in the activity index increased SDNN by 15.4 (P = .009) and 24% of the variance in natural logarithmic value of ultra-low frequency power (P = .050). High measured VO2max explained 45% of the variance in natural logarithmic value of high-frequency power (P = .009) and 25% of the variance in low frequency/high frequency ratio (P < .001).Conclusions:Lifetime physical activity and aerobic fitness may reduce obesity-related health risks by improving the cardiac autonomic function measured by HRV in obese workingage subjects. This research supports the role of lifetime physical activity in weight management strategies and interventions to reduce obesity-related health risks.

scholarly journals Association of Body Composition and Aerobic Fitness on Heart Rate Variability and Recovery in Young-Adult Black Men

2013 ◽  
Vol 04 (12) ◽  
pp. 532-538
Author(s):  
Michael R. Esco ◽  
Robert L. Herron ◽  
Stephen J. Carter ◽  
Andrew A. Flatt
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Body Composition ◽  
Young Adult ◽  
Black Men ◽  
Aerobic Fitness

scholarly journals Influence of aerobic fitness on the correspondence between heart rate variability and ventilatory threshold

2020 ◽  
Vol 34 (4) ◽  
pp. 555-566
Author(s):  
Lúcio Flávio Soares-Caldeira ◽  
Carla Cristiane da Silva ◽  
Priscila Chierotti ◽  
Nicolle de Souza Dias ◽  
Fábio Yuzo Nakamura
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cardiorespiratory Fitness ◽  
Aerobic Fitness ◽  
Visual Inspection ◽  
Ventilatory Threshold ◽  
Vagal Modulation ◽  
Maximum Workload ◽  
Progressive Exercise ◽  
The Relationship

The aims of this study were to verify the correspondence between heart rate variability (HRV) and ventilatory thresholds during a progressive exercise test and the relationship with low and high aerobic fitness levels. Twenty male volunteers (29.5±6.2 years; 75.9±13.0 kg; 175.0±7.4 cm) were recruited. The subjects were allocated to two groups according to their VO2max <48.8 ml•kg−1•min−1 (low cardiorespiratory fitness group) (n=10) and >48.81 ml•kg−1•min−1 (high cardiorespiratory fitness group) (n=10). A progressive test was performed, consisting of 3-min stages beginning at 25 watts and increasing by 25 watts every 3-min. The HRV threshold (HRVT) and ventilatory threshold (VT) analyses were performed through visual inspection. The comparisons with RMSSD values in percentage of maximum workload resulted in a higher effect size (ES) than the SDNN values. The VO2 in the high cardiorespiratory fitness group at VT (+32%), HRVTRMSSD (+27%), and HRVTSDNN (+31%) was signifi cantly higher compared to the group with low cardiorespiratory fitness. Higher values were observed for relative load (W•kg-1) at VT and HRVTSDNN in the high cardiorespiratory fitness group in comparison with the low cardiorespiratory fitness group (P<0.05), but no difference for VT and HRVTRMSSD. Signifi cant correlations between at VT and HRVTSDNN (r=0.77) were found only in the low cardiorespiratory fitness group. Cardiorespiratory fitness should be regarded as a factor for HRVT evaluation. The HRVTSDNN was closer to the VT in the low cardiorespiratory fitness group than the HRVTRMSSD, however, the use of vagal modulation assessed using the HRV parameter was more sensitive to observe possible differences regarding cardiorespiratory fitness.

scholarly journals Heart Rate Variability-Guided Training for Enhancing Cardiac-Vagal Modulation, Aerobic Fitness, and Endurance Performance: A Methodological Systematic Review with Meta-Analysis

2021 ◽  
Vol 18 (19) ◽  
pp. 10299
Author(s):  
Agustín Manresa-Rocamora ◽  
José Manuel Sarabia ◽  
Alejandro Javaloyes ◽  
Andrew A. Flatt ◽  
Manuel Moya-Ramón
Keyword(s):  
Systematic Review ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Aerobic Capacity ◽  
Aerobic Fitness ◽  
Ventilatory Threshold ◽  
Meta Analysis ◽  
Endurance Performance ◽  
Performance Outcomes ◽  
Vagal Modulation

Purpose: This systematic review with meta-analysis was conducted to establish whether heart rate variability (HRV)-guided training enhances cardiac-vagal modulation, aerobic fitness, or endurance performance to a greater extent than predefined training while accounting for methodological factors. Methods: We searched Web of Science Core Collection, Pubmed, and Embase databases up to October 2020. A random-effects model of standardized mean difference (SMD) was estimated for each outcome measure. Chi-square and the I2 index were used to evaluate the degree of homogeneity. Results: Accounting for methodological factors, HRV-guided training was superior for enhancing vagal-related HRV indices (SMD+ = 0.50 (95% confidence interval (CI) = 0.09, 0.91)), but not resting HR (SMD+ = 0.04 (95% CI = −0.34, 0.43)). Consistently small but non-significant (p > 0.05) SMDs in favor of HRV-guided training were observed for enhancing maximal aerobic capacity (SMD+ = 0.20 (95% CI = −0.07, 0.47)), aerobic capacity at second ventilatory threshold (SMD+ = 0.26 (95% CI = −0.05, 0.57)), and endurance performance (SMD+ = 0.20 (95% CI = −0.09, 0.48)), versus predefined training. No heterogeneity was found for any of the analyzed aerobic fitness and endurance performance outcomes. Conclusion: Best methodological practices pertaining to HRV index selection, recording position, and approaches for establishing baseline reference values and daily changes (i.e., fixed or rolling HRV averages) require further study. HRV-guided training may be more effective than predefined training for maintaining and improving vagal-mediated HRV, with less likelihood of negative responses. However, if HRV-guided training is superior to predefined training for producing group-level improvements in fitness and performance, current data suggest it is only by a small margin.

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