Effects of Exercise Training on Heart-Rate-Variability Indices in Individuals With Down Syndrome

2010 ◽  
Vol 19 (2) ◽  
pp. 173-183 ◽  
Author(s):  
Fani Giagkoudaki ◽  
Eleftherios Dimitros ◽  
Evangelia Kouidi ◽  
Asterios Deligiannis
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Down Syndrome ◽  
Exercise Training ◽  
Training Program ◽  
Frequency Domain ◽  
Sympathovagal Balance ◽  
Exercise Training Program ◽  
Group A ◽  
Group B

Objective:To investigate the effects of an exercise-training program on heart-rate-variability (HRV) indices in individuals with Down syndrome (DS).Design:Controlled clinical trial.Participants:10 people with DS, age 24.2 ± 5.1 y (group A), and 10 age-matched healthy sedentary individuals (group B).Method:At baseline all subjects underwent a clinical examination and an ambulatory 24-h Holter monitoring for the evaluation of cardiac autonomic-nervous-system (ANS) activity by time- and frequency-domain analysis.Intervention:After initial evaluation, group A followed a 6-mo exercise-training program and thereafter underwent the same HRV analysis.Results:At the beginning of the study, group A showed a higher LF:HF ratio than group B, indicating impaired sympathovagal balance, likely because of lesser vagal modulation. Moreover, both time- and frequency-domain indices in group A were significantly lower than in group B. At the end of the study, exercise training was found to improve the sympathovagal balance, mainly by increasing vagal activity, in group A.Conclusion:The results indicate that individuals with DS have ANS dysfunction that can be improved by exercise’s increasing the parasympathetic modulation.

scholarly journals EFFECT OF YOGA THERAPY ON FREQUENCY DOMAIN PARAMETERS OF HEART RATE VARIABILITY IN PREDIABETICS

2020 ◽  
Vol 8 (11) ◽  
pp. 1118-1124
Author(s):  
Neha Saboo ◽  
◽  
Sudhanshu Kacker
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Frequency Domain ◽  
Low Frequency ◽  
Yoga Therapy ◽  
Yoga Intervention ◽  
Type 2 Diabetic Mellitus ◽  
Group A ◽  
Group B ◽  
Post Hoc

Introduction: Prediabetes is the budding stage of type 2 diabetic mellitus and imposes the elevated risk for cardiovascular diseases (CVDs) with significant morbidity and mortality. Non pharmacological strategies such as yoga therapy have marked impact in the mitigation of prediabetes. In this backdrop, the present study was conducted to study the effect of six months yoga intervention on heart rate variability in patients diagnosed with prediabetes. Further, it has been used as tool for the maintenance of autonomic nervous system and to reduce the progression of diabetes. Material and Method: The study was conducted on 250 prediabetic adults aged ranging from 30-50 years attending the OPD of Jaipuria Hospital and from different yoga centers. Then the effect of yoga intervention on frequency domain parameters of heart rate variability such as Low frequency (LF),High frequency (HF), Ratio of LFto HF. The patients were divided into two groups as follows, Group A (n=125) were subjected to intervention with yoga exercises and Group B (n=125) were not advised for any yoga exercises. Data analysis was done by Oneway ANOVA for comparison between the groups and significance was analysed post hoc analysis followed by Tukeys and Schaffes tests. Results : In group A, yoga intervention leads to significant (p <0.001) decrease in LF component with an substantial elevation in HF component and the LF/HFratio shifted towards the parasympathetic dominance as compared to group Bat baseline, 3 and6 months. Conclusion: Thus the study reveals that yoga intervention for six months significantly shifted ANS system towards the parasympathetic dominance in prediabetic patients. Thus, routine yoga session could alleviate the cardiometabolic risk factors in individuals affected with prediabetes.

The Pattern of Sympathovagal Balance Explored in the Frequency Domain

Physiology ◽  
1999 ◽  
Vol 14 (3) ◽  
pp. 111-117 ◽  
Author(s):  
Alberto Malliani
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Frequency Domain ◽  
High Frequency ◽  
Low Frequency ◽  
Sympathovagal Balance ◽  
Heart Period ◽  
Reciprocal Regulation ◽  
Physiological Conditions

In most physiological conditions, sympathetic and vagal activities modulating heart period undergo a reciprocal regulation, leading to the concept of sympathovagal balance. This pattern can be indirectly quantified by computing the spectral powers of the oscillatory components corresponding to respiratory acts (high frequency) and to vasomotor waves (low frequency) present in heart rate variability.

scholarly journals Variabilidade da Frequência Cardíaca em Universitários Saudáveis Após Ingesta de Bebida Energética / Heart Rate Variability in Healthy College Students After Energy Drink Intake

2016 ◽  
Vol 6 (4) ◽  
pp. 28-41
Author(s):  
Daniel Cesar Shirane ◽  
Fernanda Pereira Maiolini ◽  
Dalmo Antônio Ribeiro Moreira
Keyword(s):  
College Students ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Energy Drinks ◽  
Energy Drink ◽  
Vagal Activity ◽  
Before And After ◽  
Group A ◽  
Group B ◽  
Red Bull

Objetivo: O objetivo é analisar a variabilidade da frequência cardíaca em universitários saudáveis, após ingestão de bebida energética. Materiais e Métodos: Estudo prospectivo, uni-cego que incluiu indivíduos de coração normal. Todos submeteram-se à monitorização eletrocardiográfica por 5 minutos, antes da ingestão de 250 ml do energético Red Bull® (grupo A – GA) ou de placebo (grupo B – GB), numa relação 3:1, num período de 10 minutos. Após 45 minutos, um outro ECG foi realizado. Os indivíduos dos GA e GB permaneceram em repouso, sentados. Foi obtida a VFC antes e após a administração das substâncias, nos domínios do tempo (DT) e da frequência (DF). Foram excluídos consumidores de energéticos, aqueles que tivessem ingerido álcool ou cafeína nas 24 h antes da investigação. Resultados: Foram incluídos 30 indivíduos no grupo A (16H, 14M, média de idade 22±3a, variando entre 17 e 36 a) e 10 no grupo B (6H, 4M, média de idade 20±5a).  Não se observou variação da frequência cardíaca antes e após nos GA e GB (70±10 vs 71±8 no GA [p=0,941] e, 69±8 vs. 70±9 no GB[p=0,881]). Houve incremento significativo da atividade vagal no GA, em comparação ao GB, tanto no DT (SDNN e RMSSD), como no DF (HF). O Red Bull® interferiu pouco no sistema simpático e na relação LF/HF nos GA e GB. Conclusões: O Red Bull® na dose empregada, aumentou a VFC por incremento do tônus parassimpáticos; não causou alteração no equilíbrio autonômico (relação LF/HF); esses achados confirmam os efeitos da cafeína sobre a VFC demonstrado em outros estudos.Palavras-chave: Variabilidade da Frequência Cardíaca; Bebida Energética; ArritmiasABSTRACTObjective: The objective is to analyze the heart rate variability in college students after energy drink intake. Materials and Methods. Prospective study, uni-blind which included normal individuals. All the students underwent electrocardiographic monitoring for 5 minutes before ingestion of 250 ml of Red Bull® (group A - GA) or placebo (Group B - GB) in a 3: 1 ratio, in a 10-minute period. After 45 minutes, another ECG was performed. Individuals at GA and GB remained at rest, sitting. HRV was obtained before and after administration of the substances in the time domain (TD) and frequency domain (FD). Those students categorized as frequent consumers of energy drinks and those who have been drinking alcohol or caffeine in the 24 hours prior to investigation were excluded from the study.Results: Thirty  subjects were included in group A (16M, 14F, mean age 22 ± 3a, ranging between 17 and 36 a) and 10 in group B (6 H, 4M, mean age 20 ± 5a). There was no change in heart rate before and after ingestions in  GA and GB (70 ± 10 vs 71 ± 8 in GA [p = 0.941] and 69 ± 8 vs. 70 ± 9 in GB [p = 0.881]). There was a significant increase in vagal activity in GA compared to GB, both in TD (SDNN and RMSSD) as well as in the FD (HF). The Red bull® little interfered with the sympathetic system and the LF / HF ratio in GA and GB. Conclusions: The Red Bull increased HRV by increase in parasympathetic tone; caused no change in autonomic balance (LF / HF ratio); these findings confirm the effects of caffeine on HRV shown in other studies.Keywords: Heart Rate Variability; Energy Drinks; Arrhythmias

scholarly journals Long-Term Effect of an Exercise Training Program on Physical Functioning and Quality of Life in Pulmonary Hypertension: A Randomized Controlled Trial

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Olga Kagioglou ◽  
Sophia-Anastasia Mouratoglou ◽  
George Giannakoulas ◽  
Dorothea Kapoukranidou ◽  
Maria Anifanti ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Exercise Training ◽  
Training Program ◽  
Psychological Aspects ◽  
Exercise Training Program ◽  
Sf 36 ◽  
Related Quality ◽  
Health Related ◽  
Group A

The aim of this study was to evaluate the effects of a 6-month combined aerobic and strength exercise training program on functional and psychological aspects and health-related quality of life in patients with PH and to evaluate its longer-term impact. In total, 22 stable patients (mean age 53.9 ± 13.8 , 13 female) with pulmonary hypertension of World Health Organization (WHO) class I-III participated in a nine-month study. They were randomly assigned into two groups: Group A participated in a 6-month combined aerobic and strength exercise training program, whereas Group B remained untrained. All patients underwent physical and psychological assessment at baseline and at month 6 (after completing the exercise program) and physical assessment after 9 months (3 months posttraining). After the 6-month exercise training program, patients of Group A significantly improved their physical (6MWD, STS 10 rep, STS 20 rep, TUG, lower limb strength, cardiopulmonary exercise time, METs, peak VO2, VCO2, and VE/VCO2 slope) and psychological aspects (SF-36, STAI, and BDI). Between the two groups, differences were observed at the 6MWD (95% CI: 36.2-64.6, η 2 = 0.72 ), STS 10 rep (95% CI: 6.6-2.2, η 2 = 0.4 ), STS 20 rep (95% CI: 10.8-2.4, η 2 = 0.34 ), lower limb strength (95% CI: 7.2-3.6, η 2 = 0.38 ), cardiopulmonary exercise time (95% CI: 0.1-3.3, η 2 = 0 . 2 ), and VCO2 (95% CI: 0.1-0.5, η 2 = 0 . 2 ). Additionally, psychological changes were noted at SF-36, PCS (95% CI: 3.6-14.8, η 2 = 0.35 ), MCS (95% CI: 1.3-16.1, η 2 = 0.22 ), TCS (95% CI: 1.3-16.1, η 2 = 0.22 ), and STAI (95% CI: 1.8-28.2, η 2 = 0.18 ). The favorable results of exercise were maintained at the 3-month posttraining follow-up assessment. No exercise-induced complications were observed throughout the study. In conclusion, a long-term exercise training program is a safe and effective intervention to improve functional status, psychological aspects, and health-related quality of life in patients with PH.

scholarly journals Acupuncture Point Laterality: Investigation of Acute Effects of Quchi (LI11) in Patients with Hypertension Using Heart Rate Variability

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Gerhard Litscher ◽  
Wei-Ping Cheng ◽  
Guang-Yu Cheng ◽  
Lu Wang ◽  
Jian Zhao ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Antihypertensive Drugs ◽  
Acupuncture Point ◽  
Acute Effects ◽  
Group A ◽  
Left And Right ◽  
Group B ◽  
The Right ◽  
Nonpharmacological Treatments

Hypertension is one of the major risk factors for cardiovascular disease worldwide. Over 70% of the patients use antihypertensive drugs, so nonpharmacological treatments in addition to the medication are important. Our goal was to investigate acupuncture treatment on the Quchi acupoint using heart rate (HR) and heart rate variability (HRV) and to find out whether there is a laterality in acute effects. Sixty hypertensive patients (36 female, 24 male; mean age ± SD 55.8 ± 9.7 years) were randomly assigned to two manual needle acupuncture groups (group A: left Quchi (LI11) acupoint, group B: right Quchi acupoint). There was a significant (P<0.05) decrease in HR immediately after inserting and stimulating the needle at the left and the right Quchi acupuncture point. In contrast, total HRV increased immediately after inserting the needle, but this increase was significant only towards the end of the stimulation phase and after removing the needle. There were some differences between stimulation of the left and right Quchi acupoint, but they remained insignificant. This study provides evidence that there is a beneficial effect on heart rate variability in patients with hypertension and that there are some effects of laterality of the acupoint Quchi.

scholarly journals AN ANALYSIS OF THE EFFECT OF AEROBIC EXERCISE VERSUS YOGA IN YOUNG ADULTS ON PARAMETERS OF HEART RATE VARIABILITY (HRV)

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Dimple Arora
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Aerobic Exercise ◽  
High Frequency ◽  
Low Frequency ◽  
Exercise Group ◽  
Yoga Group ◽  
Group A ◽  
Neural Factors ◽  
Group B

Background: Neural factors such as temperature, hormones, etc. are regulated by cardiovascular functions, in which neural factors mainly affect the autonomic-nervous system (ANS), which plays a major role in the maintenance & regulation of cardiac functions. Aims & Objectives: To analyze of the effect of aerobic exercise versus yoga in young adults on parameters of heart rate variability (HRV) Methodology: This was a cross-sectional study carried out in a physiology department of a medical college over the six month span in which male & female adults with written & informed consent were involved in the study, so 70 volunteers were enrolled in the Yoga Group (Group A) & 70 volunteers in the Aerobic Exercise Group (Group B) during the six months period. Both of them have been regularly trained & adequately exercised for a span of 24 weeks by a yoga instructor & physical trainer. They noticed all the base line parameters. The study of HRV was derived from an ECG unit. The parameters were compared at baseline (by paired t-test) in both groups before & after 24 weeks in Group B & Group A by unpaired t-test & were determined with latest SPSS version software. Results: The male-female ratio was comparable in both the groups as 2.5 : 1 & 1.9 : 1 groups (p>0.05). There was a substantial difference in changes over 12 weeks (p>0.05). The high-frequency HRV increased in the yoga community, where the reduction in the exercise group was statistically significant (p <0.05) & the decrease in the low frequency HRV & LF/HF ration was statistically significant (p <0.05) after 12 weeks of intervention. Conclusion: From our research, it can be inferred that the Yoga group substantially raises the high frequency HRV & reduces the low frequency HRV, so that the parasympathetic activity is more determined in the Yoga group compared to the aerobic exercise group. Keyword: HRV, Parasympathetic activity, Yoga, Aerobic exercise, ECG

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