Heart rate variability associated with acute exercise challenge in children with sickle cell anaemia

2021 ◽  
Author(s):  
Stephan L. Kienzle ◽  
Mark Rodeghier ◽  
Robert I. Liem
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Sickle Cell ◽  
Acute Exercise ◽  
Sickle Cell Anaemia ◽  
Exercise Challenge

Impact of Moderate Exercise Training on Heart Rate Variability in Obese Adults

2021 ◽  
Vol 10 (1) ◽  
pp. 12-19
Author(s):  
Breanna L. Davidson ◽  
Kristen A. Byrne ◽  
Brittany L. Rood ◽  
Elizabeth S. Edwards ◽  
Jeremy D. Akers ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
High Frequency ◽  
Acute Exercise ◽  
Frequency Component ◽  
Aerobic Exercise Training ◽  
Moderate Intensity ◽  
Obese Adults ◽  
Postexercise Recovery

ABSTRACT Background: Exercise has been shown to improve heart rate variability (HRV) at rest in healthy subjects. HRV response during and immediately after acute exercise in obese individuals following aerobic exercise training has not been evaluated. The purpose of this study was to examine the effect of 12 weeks of moderate intensity aerobic exercise training on HRV during acute exercise and active postexercise recovery in obese individuals. Methods: Eleven obese individuals (5 men, 6 women; body mass index = 39.2 ± 6.3 kg·m−2] underwent 12 weeks of exercise training at 60% of predicted VO2max, determined via a submaximal treadmill test. Body composition was assessed with dual-energy x-ray absorptiometry. HRV was measured during the final minute in each exercise stage and in recovery and analyzed with Kubios HRV software. Results: Predicted VO2max (baseline: 28.2 ± 3.5 mL·kg−1·min−1 and posttraining: 27.4 mL·kg−1·min−1, P > 0.05) was unchanged and body fat % decreased (46.2% ± 2.2 vs 45.5% ± 7.2, respectively). Initial stage heart rate and postexercise recovery heart rate was lower after training. The high frequency component was greater during the initial exercise stage after training. The low frequency component and the standard deviation of instantaneous beat-to-beat variability were greater during the final exercise stage after training. During cooldown, the root-mean-square of differences between adjacent RR intervals and high frequency normalized units were greater after training. Conclusion: HRV markers were improved during acute exercise stage and active recovery in obese individuals following 12 weeks of moderate intensity exercise training. These results suggest improvements in autonomic function can be seen with reductions in adiposity, independent of cardiorespiratory fitness changes in obese adults.

Heart Rate Variability In Children With Sickle Cell Disease

2011 ◽  
Author(s):  
Harish Rao ◽  
Hiren Muzumdar ◽  
Sanghun Sin ◽  
Gregory Gates ◽  
Joel Traylor ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Sickle Cell Disease ◽  
Sickle Cell ◽  
Cell Disease

scholarly journals Decreased Heart Rate Variability in Sickle Cell Anemia as Effect of Pulmonary Arterial Hypertension

Kardiologiia ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 39-44 ◽  
Author(s):  
F. Akgul ◽  
T. A. Batyraliev ◽  
D. V. Fettser ◽  
E. Seyfeli ◽  
A. G. Arystan ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Pulmonary Arterial Hypertension ◽  
Arterial Hypertension ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Mortality Risk ◽  
Healthy Subjects ◽  
Pulmonary Arterial ◽  
Frequency Power

Decreased heart rate variability (HRV) is associated with increased mortality risk in various diseases. Theobjective of this investigation:to study HRV in patients with sickle cell anemia (SCA) and to assess the effect of pulmonary arterial hypertension (PAH) on HRV in these patients.Materials and methods. HRV registration and Doppler echocardiographic assessment of systolic pulmonary arterial pressure (PAP) was carried out in 61 stable patients with SCA and 24 healthy subjects.Results. Low frequency power (LFP) and high frequency power (HFP) were decreased in SCA patients compared to healthy subjects. Among SCA patients, PAH patients had lower  LFP and HFP than patients without PAH. In SCA patients, systolic PAP showed significant negative correlation with LFP and HFP. Conclusion.HRV is significantly decreased in SCA patients, especially in those with PAH. HRV may be particularly useful in early detection of PAH patients who may have worse prognosis and higher mortality risk.

Acute Exercise Effects On Heart Rate Variability And Heart Rate Recovery In Type 1 Diabetes

2009 ◽  
Vol 41 ◽  
pp. 68
Author(s):  
María Elena Sarabia Cachadiña ◽  
Johan Wadén ◽  
Arja Uusitalo ◽  
Juha E. Peltonen ◽  
Milla Rosengård-Bärlund ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Type 1 Diabetes ◽  
Acute Exercise ◽  
Heart Rate Recovery

Heart Rate Variability Responses To Acute Exercise In 12-Hr Abstinent Smokers And Nonsmokers

2007 ◽  
Vol 39 (Supplement) ◽  
pp. S240
Author(s):  
Filippe R. Scerbo ◽  
Scott G. Thomas ◽  
Guy Faulkner
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Acute Exercise

scholarly journals Heart Rate Variability in Adults with Sickle Cell Anemia During a Multitasking Field Test

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Rafael Alexandre de Oliveira Deucher ◽  
Arthur de Sá Ferreira ◽  
Leila Paula Alves da Silva Nascimento ◽  
Mariana Soares da Cal ◽  
Jannis Vasileios Papathanasiou ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Sickle Cell ◽  
Sickle Cell Anemia ◽  
Parasympathetic Activity ◽  
High Frequency Component ◽  
Healthy Controls ◽  
Peripheral Muscle ◽  
Sympathovagal Imbalance ◽  
Activity Indices

Background: The integrity of the autonomic nervous system (ANS) is essential for keeping physiological processes stable, even under stress. Since there is growing interest in heart rate variability (HRV) analysis for the noninvasive assessment of the ANS in sickle cell anemia (SCA) patients, we studied the behavior of the ANS in the presence of a stressor that simulates daily-life multitasking, the Glittre ADL test (GA-T). Objectives: To evaluate the involvement of the ANS using HRV in adults with SCA during the GA-T and to quantify the strength of the correlation of HRV with lung and muscle functions. Methods: In this cross-sectional study, 16 adults with SCA and 12 healthy controls without sickle cell disease underwent HRV assessment during the GA-T, pulmonary function tests (spirometry, diffusing capacity for carbon monoxide (DLCO), and respiratory muscle testing). Peripheral muscle function [handgrip strength (HGS) and quadriceps strength (QS)] were also measured. Results: Compared to the healthy controls, adults with SCA showed lower HRV, with worse parasympathetic modulation due to reductions in the following indices: the root-mean-square difference of successive normal iRRs (iRR) (RMSSD); the percentage of pairs of consecutive iRRs whose difference is > 50 m (pNN50); the high-frequency component of heart rate variability (HF); and the standard deviation of instantaneous beat-to-beat variability (SD1) (P < 0.001 for all). Compared to healthy controls, individuals with SCA showed greater sympathovagal imbalance (higher ratio between low-frequency and HF components) and lower complexity of the ANS (lower approximate entropy). The GA-T time was correlated with parasympathetic activity indices: RMSSD (rs = -0.650, P < 0.01); pNN50 (rs = -0.932, P < 0.0001), HF (rs = -0.579, P < 0.01), and SD1 (rs = -0.814, P < 0.0001). Correlations between parasympathetic activity indices and DLCO, HGS, and QS measures were also significant. Conclusions: Adults with SCA have low HRV, with low parasympathetic activity, sympathovagal imbalance, and abnormal ANS complexity. In addition, lower HRV is associated with longer GA-T time, greater impairment of pulmonary diffusion, and greater muscle strength dysfunction.

scholarly journals Resting Heart Rate Variability at Sea Level Predicts Arterial Desaturation during Acute Exercise in Hypoxia

2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Kelsey Jean Short ◽  
Margaret C. Roarty ◽  
Jessika Amaya ◽  
Sruthi Kodali ◽  
Zachary J. Nylund ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Sea Level ◽  
Acute Exercise ◽  
Resting Heart Rate ◽  
Arterial Desaturation ◽  
Resting Heart Rate Variability

scholarly journals Changes in Heart Rate Variability and Post Exercise Blood Pressure from Manipulating Load Intensities of Resistance-Training

2020 ◽  
Vol 8 (2) ◽  
pp. 40
Author(s):  
Behzad Alemi ◽  
Lian-Yee Kok ◽  
Hui-Yin Ler ◽  
Chen-Soon Chee
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Resistance Training ◽  
Acute Exercise ◽  
Training Load ◽  
Exercise Session ◽  
Experimental Session ◽  
Physically Active ◽  
Training Programmes

Background: The isolated effect of resistance training (RT) on heart rate variability (HRV) and blood pressure (BP) is crucial when prescribing suitable training programmes for healthy individuals. Objective: The purpose of this study was to compare BP and HRV responses in physically active men after an acute RT session with loads of 5-, 10- or 15-repetition maximums (5RM, 10RM and 15RM). Method: Eighty-one men (age: 21.6±1.1yr; body mass: 74.1±5.8 kg; height: 175.3 ±7.1cm) who performed moderate to vigorous physical activities for at least 30 min a day on most days of the week participated in this study. After the of 5RM loads for the bent-over row (BR), bench press (BEP), Dead-lift (DL) and squats (SQ), participants were divided into three training load groups (15RM = GrpL, 10RM = GrpM or 5RM = GrpH). During the experimental session, each group (n=27) performed 3 sets for each of the four exercise, with 2-min rest intervals between sets and exercises with their assigned training load. BP and HRV were measured prior to, immediately after, and at 15-min intervals until two hours post-experiment. Results: All three groups attained improved BP (p = .001) reductions and longer HRV (p = .0001) changes after an acute exercise session but the GrpM (10RM) and and GrpL (15RM) performed better than GrpH (5RM). Conclusion: Strength and conditioning professionals may prescribe exercises with 10-15RM loads if the aim is to obtain an acute reduction in BP after an RT session.

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