scholarly journals Effects of Posteroanterior Thoracic Mobilization on Heart Rate Variability and Pain in Women with Fibromyalgia

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Michel Silva Reis ◽  
João Luiz Quagliotti Durigan ◽  
Ross Arena ◽  
Bruno Rafael Orsini Rossi ◽  
Renata Gonçalves Mendes ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Controlled Trial ◽  
Premenopausal Women ◽  
Pain Scale ◽  
Vagal Activity ◽  
Autonomic Modulation ◽  
Autonomic Tone ◽  
Before And After ◽  
Numeric Pain Scale

Fibromyalgia (FM) has been associated with cardiac autonomic abnormalities and pain. Heart rate variability (HRV) is reduced in FM with autonomic tone dominated by sympathetic activity. The purpose of this study was to evaluate the effects of one session of a posteroanterior glide technique on both autonomic modulation and pain in woman with FM. This was a controlled trial with immediate followup; twenty premenopausal women were allocated into 2 groups: (i) women diagnosed with FM(n=10)and (ii) healthy women(n=10). Both groups received one session of Maitland mobilization grade III posteroanterior central pressure glide, at 2 Hz for 60 s at each vertebral segment. Autonomic modulation was assessed by HRV and pain by a numeric pain scale before and after the intervention. For HRV analyses, heart rate and RR intervals were recorded for 10 minutes. FM subjects demonstrated reduced HRV compared to controls. Although the mobilization technique did not significantly reduce pain, it was able to improve HRV quantified by an increase in rMSSD and SD1 indices, reflecting an improved autonomic profile through increased vagal activity. In conclusion, women with FM presented with impaired cardiac autonomic modulation. One session of Maitland spine mobilization was able to acutely improve HRV.

scholarly journals Improvement of Circadian Rhythm of Heart Rate Variability by Eurythmy Therapy Training

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Georg Seifert ◽  
Jenny-Lena Kanitz ◽  
Kim Pretzer ◽  
Günter Henze ◽  
Katharina Witt ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Circadian Rhythm ◽  
Negative Impact ◽  
Vagal Activity ◽  
Nonlinear Parameters ◽  
Low Frequencies ◽  
Before And After ◽  
Time Domains

Background. Impairment of circadian rhythm is associated with various clinical problems. It not only has a negative impact on quality of life but can also be associated with a significantly poorer prognosis. Eurythmy therapy (EYT) is an anthroposophic movement therapy aimed at reducing fatigue symptoms and stress levels.Objective. This analysis of healthy subjects was conducted to examine whether the improvement in fatigue symptoms was accompanied by improvements in the circadian rhythm of heart rate variability (HRV).Design. Twenty-three women performed 10 hours of EYT over six weeks. Electrocardiograms (ECGs) were recorded before and after the EYT trial. HRV was quantified by parameters of the frequency and time domains and the nonlinear parameters of symbolic dynamics.Results. The day-night contrast with predominance of vagal activity at night becomes more pronounced after the EYT training, and with decreased Ultralow and very low frequencies, the HRV shows evidence of calmer sleep. During the night, the complexity of the HRV is significantly increased indicated by nonlinear parameters.Conclusion. The analysis of the circadian patterns of cardiophysiological parameters before and after EYT shows significant improvements in HRV in terms of greater day-night contrast caused by an increase of vagal activity and calmer and more complex HRV patterns during sleep.

scholarly journals Reduction of depressive symptoms during inpatient treatment is not associated with changes in heart rate variability

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248686
Author(s):  
Sabrina Neyer ◽  
Michael Witthöft ◽  
Mark Cropley ◽  
Markus Pawelzik ◽  
Ricardo Gregorio Lugo ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Depressive Symptoms ◽  
Rating Scale ◽  
Psychiatric Treatment ◽  
Self Report ◽  
Future Research ◽  
Symptom Improvement ◽  
Vagal Activity ◽  
Before And After

Vagally mediated heart rate variability (HRV) is a psychophysiological indicator of mental and physical health. Limited research suggests there is reduced vagal activity and resulting lower HRV in patients with Major Depressive Disorder (MDD); however little is actually known about the association between HRV and symptoms of depression and whether the association mirrors symptom improvement following psychotherapy. The aim of this study was to investigate the association between antidepressant therapy, symptom change and HRV in 50 inpatients (68% females; 17–68 years) with a diagnosis of MDD. Severity of depressive symptoms was assessed by self-report (Beck Depression Inventory II) and the Hamilton Rating Scale of Depression. Measures of vagally mediated HRV (root mean square of successive differences and high-frequency) were assessed at multiple measurement points before and after inpatient psychotherapeutic and psychiatric treatment. Results showed an expected negative correlation between HRV and depressive symptoms at intake. Depressive symptoms improved (d = 0.84) without corresponding change in HRV, demonstrating a de-coupling between this psychophysiological indicator and symptom severity. To our knowledge, this study is the first to examine an association between HRV and depressive symptoms before and after psychotherapy. The observed de-coupling of depression and HRV, and its methodological implications for future research are discussed.

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 Resistance training and cardiovascular autonomic modulation in humans: a systematic review and meta-analysis

2020 ◽  
pp. 1-8
Author(s):  
Amanda V Sardeli ◽  
Marcelo V Heeren ◽  
Lucia S Magalhães ◽  
Bruno Rodrigues ◽  
Cláudia R Cavaglieri ◽  
...  
Keyword(s):  
Systematic Review ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Resistance Training ◽  
Meta Analysis ◽  
Sympathovagal Balance ◽  
Autonomic Modulation ◽  
Frequency Domains ◽  
Before And After ◽  
Standard Difference

Background. Studies investigating resistance training (RT) effects on cardiovascular autonomic modulation (CAM) have shown controversial results. Objective. To address the effect of RT on CAM in humans, in healthy and unhealthy individuals by analysing the findings of previous studies. Methods. An updated search (MEDLINE on January 18, 2016) found 19 studies testing the basal heart rate variability (HRV) before and after a RT intervention in humans. Results. Although, some individual studies showed significant effects from RT on HRV in both directions, the overall effect (standard difference in means) was not significantly on all HRV parameters analysed (time and frequency domains). No RT subgroup (samples and protocols features) presented significant effect on sympathovagal balance, limiting the comprehension about these variations. Conclusion. We conclude RT does not change humans CAM.

High-Intensity Intermittent Exercise and Autonomic Modulation: Effects of Different Volume Sessions

2017 ◽  
Vol 38 (06) ◽  
pp. 468-472 ◽  
Author(s):  
Carlos Iván Mesa Castrillón ◽  
Rodolfo Augusto Travagin Miranda ◽  
Carolina Cabral-Santos ◽  
Lais Manata Vanzella ◽  
Bruno Rodrigues ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Intensity ◽  
Intermittent Exercise ◽  
Recovery Period ◽  
Autonomic Modulation ◽  
Physically Active ◽  
Maximal Aerobic Speed ◽  
Lower Volume ◽  
Before And After

AbstractThe aim of this study was to compare heart rate variability (HRV) recovery after 2 sessions of high-intensity intermittent exercise at different volumes (1.25 km [HIIE1.25] and 2.5 km [HIIE2.5]). 13 participants determined their maximal aerobic speed (MAS) and completed 2 HIIE (1:1 at 100% MAS) trials. The heart rate was recorded before and after each session. HRV indicators were calculated according to time (RMSSD and SDNN) and frequency (LF, HF and LF/HF ratio) domains. SDNN and RMSSD presented effect of test (F=20.97; p<0.01 and F=21.00; p<0.01, respectively) and moment (F=6.76; p<0.01 and F=12.30; p<0.01, respectively), without interaction. Even though we did not find an interaction effect for any HRV variables, the HIIE2.5 presented a delay of only 5 min in HRV recovery, when compared to HIIE1.25. However, the effects of the test (SDNN, RMSSD, LF-log, and HF-log) indicate higher autonomic stress during the entire recovery period. These findings may indicate that exercise volume interferes with HRV recovery. If so, physically active subjects may choose a lower volume exercise (i. e., HIIE1.25) in order to promote similar physical fitness adaptations with lower loading on autonomic modulation.

scholarly journals Impact of Vitamin D supplementation on Heart Rate Variability in Vitamin D deficient Asthma COPD Overlap Syndrome patients: A Randomized Controlled Trial

2020 ◽  
Vol 15 (2) ◽  
pp. 98-107
Author(s):  
Salsa Bill Nahar ◽  
Sultana Ferdousi ◽  
Shamima Sultana ◽  
Kazi Saifuddin Bennoor ◽  
Mustafijur Rahman ◽  
...  
Keyword(s):  
Heart Rate ◽  
Vitamin D ◽  
Heart Rate Variability ◽  
Vitamin D3 ◽  
Time Domain ◽  
Controlled Trial ◽  
Serum Vitamin ◽  
Vitamin D Supplementation ◽  
Overlap Syndrome ◽  
Before And After

Background:Vitamin D3 deficiency is common in Asthma COPD overlap syndrome (ACO) and administration of vitamin D3 increased heart rate variability in healthy subjects. Objective: This randomized clinical trial aimed to investigate the therapeutic effect of vitamin D3administration on time domain measures of heart rate variability in 51 male vitamin D3(<30- 10ng/ml) deficient ACO patients. Methods: Patients were given either vitaminD3 capsule or placebo per week orally for 3 months and serum vitamin D3 level and time domain parameters of heart rate variability were assessed before and after the intervention. For statistical analysis, independent and paired sample t test was used. Results: Before intervention, vitamin D3 level and time domain parameters of heart rate variability were similar in all patients but these outcome measures significantly increased in vitamin D3 treated but not in placebo treated patients after 3 months. Conclusion:In conclusion, vitaminD3therapy is effective to improve heart rate variability in vitamin D3 deficient Asthma COPD overlap syndrome. J Bangladesh Soc Physiol. 2020, December; 15(2): 98-107

scholarly journals The effects of six-week slow, controlled breathing exercises on heart rate variability in physically active, healthy individuals

2021 ◽  
Vol 25 (1) ◽  
pp. 4-9
Author(s):  
Cihan Erdem Sürücü ◽  
Sarp Güner ◽  
Caner Cüce ◽  
Dicle Aras ◽  
Fırat Akça ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Parasympathetic Activity ◽  
Control Group ◽  
Vagal Activity ◽  
Physically Active ◽  
Breathing Exercises ◽  
Physical Exercises ◽  
Before And After ◽  
Controlled Breathing

Background and Study Aim: Heart rate variability (HRV) provides information about sympathetic-parasympathetic balance. The effects of different types of physical exercises on HRV have been investigated so far. The purpose of the current study was to evaluate the chronic effects of six-week slow and controlled breathing exercise on HRV in physically active, healthy adults. Material and Methods: A total of 22 individuals (11 female, 11 male) participated in the study voluntarily. The experimental group (EG) attended to the breathing exercises for 15 minutes per day, three days a week for six weeks. Neither the EG nor the control group (CG) did join in any regular physical activity program during the study. Both groups participated in the HRV measurements before and after the six-week of process. Results: Only the EG showed statistically significant changes in some HRV parameters. The alterations observed in LF:HF ratio, HFnu, and LFnu parameters were to reflect the increase in parasympathetic activity. Although the changes in the other parameters of HRV such as SDNN, SDSD, RMSSD, TP, HF, LF, and VLF were also related to increased vagal activity, these alterations were not significant. However, no significant change was found in the CG. Conclusions: These results show that only the slow, controlled breathing exercises for six weeks could be used to improve parasympathetic activity in physically active individuals. A study could be designed where the duration is kept over 8 weeks, and the effects of physical exercises only, breathing exercises only, and physical + breathing exercises together on HRV are examined.

scholarly journals Chromogranin A and the Autonomic System: Decomposition of Heart Rate Variability and Rescue by Its Catestatin Fragment

Endocrinology ◽  
2010 ◽  
Vol 151 (6) ◽  
pp. 2760-2768 ◽  
Author(s):  
Nagendu B. Dev ◽  
Jiaur R. Gayen ◽  
Daniel T. O'Connor ◽  
Sushil K. Mahata
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Chromogranin A ◽  
Baroreflex Sensitivity ◽  
Total Power ◽  
Systemic Hypertension ◽  
Autonomic Tone ◽  
Blood Pressure Elevation ◽  
System Decomposition ◽  
Before And After

Chromogranin A (CHGA/Chga) has been implicated in the genesis of systemic hypertension and consequent cardiac abnormalities. Catestatin (CST) (human CHGA352-372) replacement reduces blood pressure elevation and increases baroreflex sensitivity in Chga knockout (KO) mice. Because of the dampened baroreflex sensitivity, we reasoned that KO mice would display altered heart rate variability (HRV). Thus, we evaluated beat-to-beat measurements in HRV in wild-type (WT) and KO mice, before and after CST replacement. HR dynamics were evaluated by bipolar Einthoven electrocardiogram, with deconvolution into time and frequency domains, as well as Lorenz nonlinear return analyses. At baseline, HR was higher [444 ± 24 beats per minute (bpm)] in KO compared with WT (330 ± 18 bpm) mice. The total power in the HRV spectra was substantially diminished in KO animals. CST increased total power but only in KO mice. Each time-domain parameter was substantially lower in KO compared with WT mice, and the CST in the KO group could reverse the differences. Lorenz analysis revealed reductions in S1 (short axis perpendicular to the line of identity in the ellipse) and S2 (long axis along the line of identity in the ellipse) in KO animals, indicating that regulation of HRV is diminished in the parasympathetic and sympathetic domains. CST replacement caused restoration of both S1 and S2, in the KO group. These data suggest that Chga has a profound effect on autonomic tone to the heart and that its CST fragment is responsible for such actions. The results suggest future strategies for intervention in cardiovascular disorders accompanied by adverse HRV profiles.

scholarly journals The effects of six-week slow, controlled breathing exercises on heart rate variability in physically active, healthy individuals

2021 ◽  
Vol 25 (1) ◽  
pp. 4-9
Author(s):  
Cihan Erdem Sürücü ◽  
Sarp Güner ◽  
Caner Cüce ◽  
Dicle Aras ◽  
Fırat Akça ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Parasympathetic Activity ◽  
Control Group ◽  
Vagal Activity ◽  
Physically Active ◽  
Breathing Exercises ◽  
Physical Exercises ◽  
Before And After ◽  
Controlled Breathing

Background and Study Aim: Heart rate variability (HRV) provides information about sympathetic-parasympathetic balance. The effects of different types of physical exercises on HRV have been investigated so far. The purpose of the current study was to evaluate the chronic effects of six-week slow and controlled breathing exercise on HRV in physically active, healthy adults. Material and Methods: A total of 22 individuals (11 female, 11 male) participated in the study voluntarily. The experimental group (EG) attended to the breathing exercises for 15 minutes per day, three days a week for six weeks. Neither the EG nor the control group (CG) did join in any regular physical activity program during the study. Both groups participated in the HRV measurements before and after the six-week of process. Results: Only the EG showed statistically significant changes in some HRV parameters. The alterations observed in LF:HF ratio, HFnu, and LFnu parameters were to reflect the increase in parasympathetic activity. Although the changes in the other parameters of HRV such as SDNN, SDSD, RMSSD, TP, HF, LF, and VLF were also related to increased vagal activity, these alterations were not significant. However, no significant change was found in the CG. Conclusions: These results show that only the slow, controlled breathing exercises for six weeks could be used to improve parasympathetic activity in physically active individuals. A study could be designed where the duration is kept over 8 weeks, and the effects of physical exercises only, breathing exercises only, and physical + breathing exercises together on HRV are examined.

Effects of endurance exercise training on heart rate variability and susceptibility to sudden cardiac death: protection is not due to enhanced cardiac vagal regulation

2006 ◽  
Vol 100 (3) ◽  
pp. 896-906 ◽  
Author(s):  
George E. Billman ◽  
Monica Kukielka
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Training ◽  
Control Period ◽  
Exercise Program ◽  
Submaximal Exercise ◽  
Myocardial Infarctions ◽  
Vagal Activity ◽  
Similar Response ◽  
Before And After

Low heart rate variability (HRV) is associated with an increased susceptibility to ventricular fibrillation (VF). Exercise training can increase HRV (an index of cardiac vagal regulation) and could, thereby, decrease the risk for VF. To test this hypothesis, a 2-min coronary occlusion was made during the last min of a 18-min submaximal exercise test in dogs with healed myocardial infarctions; 20 had VF (susceptible), and 13 did not (resistant). The dogs then received either a 10-wk exercise program (susceptible, n = 9; resistant, n = 8) or an equivalent sedentary period (susceptible, n = 11; resistant, n = 5). HRV was evaluated at rest, during exercise, and during a 2-min occlusion at rest and before and after the 10-wk period. Pretraining, the occlusion provoked significantly ( P < 0.01) greater increases in HR (susceptible, 54.9 ± 8.3 vs. resistant, 25.0 ± 6.1 beats/min) and greater reductions in HRV (susceptible, −6.3 ± 0.3 vs. resistant, −2.8 ± 0.8 ln ms2) in the susceptible dogs compared with the resistant animals. Similar response differences between susceptible and resistant dogs were noted during submaximal exercise. Training significantly reduced the HR and HRV responses to the occlusion (HR, 17.9 ± 11.5 beats/min; HRV, −1.2 ± 0.8, ln ms2) in the susceptible dogs; similar response reductions were noted during exercise. In contrast, these variables were not altered in the sedentary susceptible dogs. Posttraining, VF could no longer be induced in the susceptible dogs, whereas four sedentary susceptible dogs died during the 10-wk control period, and the remaining seven animals still had VF when tested. Atropine decreased HRV but only induced VF in one of eight trained susceptible dogs. Thus exercise training increased cardiac vagal activity, which was not solely responsible for the training-induced VF protection.

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