scholarly journals Manipulation based on Fryette’s Laws increases heart rate variability and muscle flexibility in subjects with headache

2020 ◽  
pp. 1-6
Author(s):  
Fabiana Forti Sakabe ◽  
Daniel Iwai Sakabe ◽  
Gabriel Abreu Gonçalves ◽  
Paloma Bernardelli dos Santos
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Cervical Spine ◽  
Signs And Symptoms ◽  
Lower Limbs ◽  
Bench Test ◽  
Chain Flexibility ◽  
Before And After ◽  
Cervical Ganglia ◽  
The Time Domain

Background: The sympathetic nervous system has a direct connection with the cervical spine, through the cervical ganglia, in the superior cervical ganglion; therefore the manipulation of the superior cervical spine could result on modifications of the heart rate variability (HRV). Objective: To evaluate the immediate effect of the manipulation based on the Fryette’s laws of the superior cervical spinal (SCS) on HRV and posterior chain flexibility (PCF) in subjects with headache. Methods/Design: Twelve volunteers of both genders (23.8 ± 2.8 years), who had complaints of headache, participated in the study. Before and immediately after the HRV assessment, PCF was measured with the assistance of Wells and Dillon’s Bench test. For this the volunteer remained seated with the spine erect, lower limbs extended and feet resting on the bench. Then it was requested maximum flexion of the trunk and measured with a ruler the achieved distance. The HRV was obtained by the cardiofrequencymeter Polar RS800cx and captured for continuous fifteen minutes with the volunteer resting in supine position. At five minutes of collection, with the volunteer in the same position, the SCS manipulation technique (Fryette’s Laws) was performed bilaterally. The HRV assessment was performed in the time domain by the RMSSD index of RR intervals (Matlab For Windows version 6.1) in two different moments: before and after the manipulation. Statistical analysis consisted of the Kolmogorov-Smirnov test and paired t-test for comparison of pre and post manipulation variables (p<0.05). Results: There was a significant increase (p = 0.004) in the RMSSD index after the manipulation (from 42.58 ± 24.52 ms before the manipulation to 51.25 ± 27.55 ms ten minutes after manipulation). The PCF also increased significantly (p = 0.03) after the SCS manipulation (from 17.65 ± 11.9 cm to 21.40 ± 13.8 cm). Conclusions: The manipulation of SCS increased the HRV through the increase of the RMSSD index indicating a predominance of parasympathetic activity, and improved the PCF of the studied volunteers, also reduced signs and symptoms of headache.

scholarly journals Heart Rate Variability Predicts Treatment Efficacy in Patients with Chronic Migraine: An Exploratory Study

2021 ◽  
Author(s):  
Chun-Hsiang Chuang ◽  
Kuan-Lin Lai ◽  
Jhe-Yu Li ◽  
Jung-Tai King ◽  
Wei-Ta Chen ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Chronic Migraine ◽  
Preventive Treatment ◽  
Headache Disorder ◽  
Episodic Migraine ◽  
Before And After ◽  
Headache Diary ◽  
And Gender ◽  
The Time Domain

Abstract Background : Chronic migraine (CM) is a disabling headache disorder. Autonomic nervous system (ANS) disturbance, as evidenced from heart rate variability (HRV) studies, has been documented in patients with episodic migraine and other pain disorders but not specifically in patients with CM. This study aimed to explore whether the HRV in patients with CM was impaired and whether it could be used to predict treatment outcomes.Methods : Patients with CM were recruited, along with age- and gender-matched healthy controls (CTLs). The time-domain, frequency-domain, and nonlinear metrics of HRV were calculated to evaluate the sympathetic and parasympathetic aspects of ANS function in patients with CM before and after 3-month (12 weeks) treatment with flunarizine as well as in CTLs. The patients were asked to keep a headache diary throughout the study period to determine the treatment efficacy.Results : A total of 81 patients with CM and 58 CTLs completed the study. Most HRV values in patients with CM were significantly lower than those in CTLs, suggesting decreased overall autonomic modulation and parasympathetic hypofunction but not sympathetic dysfunction. By unsupervised clustering analysis, patients with CM were divided into two cluster groups with high and low HRV at baseline. Patients with high baseline HRV, which was comparable to that of CTLs, showed significantly higher absolute and relative reductions in averaged monthly headache days across a 3-month preventive treatment compared with patients with low baseline HRV (-9.1 days vs. -6.4 days or -43.2% vs. -30.1%, both p < 0.05). The HRV increased after preventive treatment in the low-HRV group but not in the high-HRV group.Conclusions : HRV could distinguish patients with CM from CTLs, indicating the involvement of ANS dysfunction. Moreover, patients with CM having a near-normal baseline HRV, indicating a preserved parasympathetic function and overall ANS modulation reservoir, predicted a better outcome to preventive treatment with flunarizine than those with low HRV.Trial registration: Neurologic Signatures of Chronic Pain Disorders, NCT02747940.Registered 22 April 2016, https://clinicaltrials.gov/ct2/show/NCT02747940

840 – Heart rate variability in panic disorder patients before and after the therapy

2013 ◽  
Vol 28 ◽  
pp. 1 ◽  
Author(s):  
T. Diveky ◽  
J. Prasko ◽  
M. Cerna ◽  
D. Kamaradova ◽  
A. Grambal ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Panic Disorder ◽  
Before And After

scholarly journals Heart rate variability: Analysis of time-domain indices in patients with chronic Chagas disease before and after an exercise program

2013 ◽  
Vol 32 (3) ◽  
pp. 219-227 ◽  
Author(s):  
Marcus Vinicius Amaral da Silva Souza ◽  
Carla Cristiane Santos Soares ◽  
Juliana Rega de Oliveira ◽  
Cláudia Rosa de Oliveira ◽  
Paloma Hargreaves Fialho ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Chagas Disease ◽  
Time Domain ◽  
Exercise Program ◽  
Heart Rate Variability Analysis ◽  
Variability Analysis ◽  
Before And After ◽  
Chronic Chagas Disease

Comparative study on effect of neutral spinal bath and neutral spinal spray on blood pressure, heart rate and heart rate variability in healthy volunteers

2018 ◽  
Vol 16 (2) ◽  
Author(s):  
Arundhati Goley ◽  
A. Mooventhan ◽  
NK. Manjunath
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Healthy Volunteers ◽  
Group Analysis ◽  
Low Frequency ◽  
Single Session ◽  
Arterial Blood ◽  
Before And After ◽  
Instantaneous Heart Rate

Abstract Background Hydrotherapeutic applications to the head and spine have shown to improve cardiovascular and autonomic functions. There is lack of study reporting the effect of either neutral spinal bath (NSB) or neutral spinal spray (NSS). Hence, the present study was conducted to evaluate and compare the effects of both NSB and NSS in healthy volunteers. Methods Thirty healthy subjects were recruited and randomized into either neutral spinal bath group (NSBG) or neutral spinal spray group (NSSG). A single session of NSB, NSS was given for 15 min to the NSBG and NSSG, respectively. Assessments were taken before and after the interventions. Results Results of this study showed a significant reduction in low-frequency (LF) to high-frequency (HF) (LF/HF) ratio of heart rate variability (HRV) spectrum in NSBG compared with NSSG (p=0.026). Within-group analysis of both NSBG and NSSG showed a significant increase in the mean of the intervals between adjacent QRS complexes or the instantaneous heart rate (HR) (RRI) (p=0.002; p=0.009, respectively), along with a significant reduction in HR (p=0.002; p=0.004, respectively). But, a significant reduction in systolic blood pressure (SBP) (p=0.037) and pulse pressure (PP) (p=0.017) was observed in NSSG, while a significant reduction in diastolic blood pressure (DBP) (p=0.008), mean arterial blood pressure (MAP) (p=0.008) and LF/HF ratio (p=0.041) was observed in NSBG. Conclusion Results of the study suggest that 15 min of both NSB and NSS might be effective in reducing HR and improving HRV. However, NSS is particularly effective in reducing SBP and PP, while NSB is particularly effective in reducing DBP and MAP along with improving sympathovagal balance in healthy volunteers.

scholarly journals Analysis of heart rate variability in corn snakes (Pantherophis guttatus)

2021 ◽  
Vol 10 (11) ◽  
pp. e294101119781
Author(s):  
Antonio Gomes da Silva Neto ◽  
Daniel Souza Ferreira Magalhães ◽  
Raduan Hage ◽  
Laurita dos Santos ◽  
José Carlos Cogo
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Low Frequency ◽  
Autonomic Nervous ◽  
Rr Interval ◽  
Diagnosis And Prognosis ◽  
Frequency Domains ◽  
The Time Domain

The assessment of heart rate variability (HRV) by linear methods in conjunction with Poincaré plots can be useful for evaluating cardiac regulation by the autonomic nervous system and for the diagnosis and prognosis of heart disease in snakes. In this report, we describe an analysis of HRV in conscious adult corn snakes Pantherophis guttatus (P. guttatus).  The electrocardiogram (ECG) parameters were determined in adult corn snakes (8 females, 13 males) and used for HRV analysis, and the RR interval was analyzed by linear methods in the time and frequency domains. There was no sex-related difference in heart rate. However, significant differences were seen in the duration of the P, PR, and T waves and QRS complex; there was no difference in the QT interval. The values for the RR interval varied by 15.3% and 18.8% in male and female snakes, respectively, and there was considerable variation in the values for the high and low frequency domains. The changes in the time domain were attributed to regulation by the parasympathetic branch of the autonomic nervous system, in agreement with variations in the high and low frequency domains. The values for standard deviations 1 and 2 in Poincaré plots, as well as the values of the frequency domain, provide useful parameters for future studies of cardiac function in P. guttatus.

scholarly journals Quantitative assessment of the relationship between behavioral and autonomic dynamics during propofol-induced unconsciousness

2020 ◽  
Author(s):  
Sandya Subramanian ◽  
Patrick L. Purdon ◽  
Riccardo Barbieri ◽  
Emery N. Brown
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Prediction Models ◽  
Electrodermal Activity ◽  
Strong Relationship ◽  
Pulse Amplitude ◽  
Physiological Data ◽  
Statistical Tool ◽  
Autonomic Changes ◽  
Before And After

ABSTRACTDuring general anesthesia, both behavioral and autonomic changes are caused by the administration of anesthetics such as propofol. Propofol produces unconsciousness by creating highly structured oscillations in brain circuits. The anesthetic also has autonomic effects due to its actions as a vasodilator and myocardial depressant. Understanding how autonomic dynamics change in relation to propofol-induced unconsciousness is an important scientific and clinical question since anesthesiologists often infer changes in level of unconsciousness from changes in autonomic dynamics. Therefore, we present a framework combining physiology-based statistical models that have been developed specifically for heart rate variability and electrodermal activity with a robust statistical tool to compare behavioral and multimodal autonomic changes before, during, and after propofol-induced unconsciousness. We tested this framework on physiological data recorded from nine healthy volunteers during computer-controlled administration of propofol. We studied how autonomic dynamics related to behavioral markers of unconsciousness: 1) overall, 2) during the transitions of loss and recovery of consciousness, and 3) before and after anesthesia as a whole. Our results show a strong relationship between behavioral state of consciousness and autonomic dynamics. All of our prediction models showed areas under the curve greater than 0.75 despite the presence of non-monotonic relationships among the variables during the transition periods. Our analysis highlighted the specific roles played by fast versus slow changes, parasympathetic vs sympathetic activity, heart rate variability vs electrodermal activity, and even pulse rate vs pulse amplitude information within electrodermal activity. Further advancement upon this work can quantify the complex and subject-specific relationship between behavioral changes and autonomic dynamics before, during, and after anesthesia. However, this work demonstrates the potential of a multimodal, physiologically-informed, statistical approach to characterize autonomic dynamics.

Effect of sleep restriction on orthostatic cardiovascular control in humans

2000 ◽  
Vol 88 (3) ◽  
pp. 966-972 ◽  
Author(s):  
N. K. Muenter ◽  
D. E. Watenpaugh ◽  
W. L. Wasmund ◽  
S. L. Wasmund ◽  
S. A. Maxwell ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Lower Body Negative Pressure ◽  
Systolic Pressure ◽  
Cardiovascular Responses ◽  
Sleep Restriction ◽  
Orthostatic Tolerance ◽  
Arterial Baroreflex ◽  
Finger Arterial Pressure ◽  
Before And After

We hypothesized that sleep restriction (4 consecutive nights, 4 h sleep/night) attenuates orthostatic tolerance. The effect of sleep restriction on cardiovascular responses to simulated orthostasis, arterial baroreflex gain, and heart rate variability was evaluated in 10 healthy volunteers. Arterial baroreflex gain was determined from heart rate responses to nitroprusside-phenylephrine injections, and orthostatic tolerance was tested via lower body negative pressure (LBNP). A Finapres device measured finger arterial pressure. No difference in baroreflex function, heart rate variability, or LBNP tolerance was observed with sleep restriction ( P > 0.3). Systolic pressure was greater at −60 mmHg LBNP after sleep restriction than before sleep restriction (110 ± 6 and 124 ± 3 mmHg before and after sleep restriction, respectively, P = 0.038), whereas heart rate decreased (108 ± 8 and 99 ± 8 beats/min before and after sleep restriction, respectively, P = 0.028). These data demonstrate that sleep restriction produces subtle changes in cardiovascular responses to simulated orthostasis, but these changes do not compromise orthostatic tolerance.

Heart Rate Variability before and after Knee Surgery in Amateur Soccer Players

2007 ◽  
Vol 16 (4) ◽  
pp. 336-342
Author(s):  
Nicolas Olivier ◽  
Renaud Legrand ◽  
Jacques Rogez ◽  
FX Gamelin ◽  
Serge Berthoin ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Nervous System ◽  
Autonomic Nervous System ◽  
Knee Surgery ◽  
Soccer Players ◽  
Total Power ◽  
Autonomic Nervous ◽  
Hospitalization Period ◽  
Before And After

Objective:To analyze the consequences on heart rate variability (HRV) of a hospitalization period due to surgery of the knee in sportsmen.Patients:Ten soccer players who had undergone knee surgery took part in this study.Design:HRV was measured before and after hospitalization within a 7-day interval.Results:After the hospitalization phase, heart rate at rest increased significantly (3 beats/minute). A significant decrease of 7% in the cardiac inter beat interval (R-R interval), P < 0.05 and a 66% decrease in total power spectral density: −66%, P < 0.05 were observed. The disturbance of the autonomic nervous system could be due to a variation in cardiac vagal activity resulting in a 64% decrease in the high frequencies (P < 0.05). This variation was not associated with a modification in normalized markers (LFn.u., HFn.u.) and LF/HF ratio (P > 0.05).Conclusion:In sportsmen, a hospitalization period led to an increase in resting heart rate and was associated with a disturbance of the autonomic nervous system.

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