scholarly journals Autonomic Nerve Responses in a Psychological Stress Task and Subsequent Slow Breathing

2012 ◽  
Vol 24 (3) ◽  
pp. 257-259 ◽  
Author(s):  
Satoru Kai ◽  
Manami Koga
Keyword(s):  
Psychological Stress ◽  
Autonomic Nerve ◽  
Stress Task ◽  
Slow Breathing

scholarly journals Impact of Slow breathing exercise on heart rate variability in male Type 2 diabetes mellitus

2020 ◽  
Vol 14 (2) ◽  
pp. 63-68
Author(s):  
Jenefer Yesmin ◽  
Noorzahan Begum ◽  
Sultana Ferdousi
Keyword(s):  
Diabetes Mellitus ◽  
Low Frequency ◽  
Power Spectral Analysis ◽  
Autonomic Nerve ◽  
Nerve Function ◽  
Breathing Exercise ◽  
Autonomic Nerve Function ◽  
Power Spectral ◽  
Slow Breathing

Background: Reduced heart rate variability (HRV) with cardiac autonomic nerve dysfunction has been found in Type 2 Diabetes Mellitus (T2DM) patients. Yoga based slow breathing exercise (SBE) improved this autonomic functions in healthy subjects. Objectives: To assess the effect of SBE on cardiac autonomic nerve function(CANF) by power spectral analysis of HRV in patients with T2DM. Methods: This prospective interventional study was carried on 30 male diagnosed T2DM patients aged 45-55 years with disease duration 5-10 years enrolled from Out Patient Department of Endocrinology, Bangabandhu Sheikh Mujib Medical University, Dhaka. They performed SBE for 30 minutes twice daily for 3 months. Thirty apparently healthy age, BMI matched male who did not undergo any type of exercise were included as control. To assess the cardiac autonomic nerve function, power spectral analysis of HRV of all patients were done before and after 3 months of SBE. HRV data were recorded by polyrite D (RMS India). For statistical analysis, independent sample and paired sample t-test were used. Results: The preintervention values of Low frequency (LF) normalized unit(nu) and Low frequency/High frequency( LF/HF) ratio were significantly (p<0.001) higher and the values of LF power, HF power, HF normalized unit (HF nu) were significantly (p<0.001) lower in all diabetic patients compared to control. The postintervention values of LF power, HF power, HF nu increased significantly (p<0.001) and the LF nu, LF/HF ratio decreased significantly (p<0.001)compared to their pre-intervention values in T2DM. There were no significant differences between the post intervention values of LF nu, HF nu and LF/HF ratio in T2DM and the control. Conclusion: Impaired cardiac autonomic nerve function was significantly improved by SBE in T2DM. J Bangladesh Soc Physiol. 2019, December; 14(2): 63-68

scholarly journals Effect of slow breathing exercise on non linear Heart rate variability in transfusion dependent thalassemic patients

2019 ◽  
Vol 14 (1) ◽  
pp. 26-32
Author(s):  
Kamol Chandra Das ◽  
Sultana Ferdousi
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Conventional Treatment ◽  
Autonomic Nerve ◽  
Nerve Function ◽  
Breathing Exercise ◽  
Autonomic Nerve Function ◽  
Non Linear ◽  
Healthy Control ◽  
Slow Breathing

Background: Nonlinear measure of heart rate variability (HRV) is an emerging tool to detect changes in cardiac autonomic nerve function (CANF) in transfusion dependent thalassemic (TDT) patients. Slow breathing exercise (SBE) can significantly improve HRV in health and various diseases. Objective: To observe the effect of slow breathing exercise (SBE) on non linear measures of HRV in TDT patients. Methods: This prospective interventional study was done in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka in 2018 on 60 male TDT patients aged 15-30 years. Thirty patients received conventional treatment and 30 patients performed slow breathing exercise along with the conventional treatment for 3 months. Age and sex matched 30 healthy control were enrolled. All subjects were followed up at baseline and after 3 months. Non linear (Poincare) HRV parameters were recorded by Power Lab 8/35 AD Instrument, Australia. For statistical analysis paired sample ‘ t’ test and independent sample ‘t’ test were used. Result: SD1, SD2 and SD1/SD2 were found significantly lower in TDT patients compared to healthy control at baseline. After 3 months of slow breathing exercise, significant increment of these parameters occurred with trend of improvement in cardiac autonomic nerve function in this group of patients. Conclusion: Slow breathing exercise may improve cardiac autonomic nerve function and sympathovagal balance in transfusion dependent thalassemic patients. J Bangladesh Soc Physiol. 2019, June; 14(1): 26-32

Titanium-treated surroundings attenuate psychological stress associated with autonomic nerve regulation in office workers with daily emotional stress

2012 ◽  
Vol 108 ◽  
pp. 13-18 ◽  
Author(s):  
Wataru Aoi ◽  
Tohru Kamata ◽  
Yasuo Ishiura ◽  
Masakazu Tomaru ◽  
Yoshihiko Satoh ◽  
...  
Keyword(s):  
Psychological Stress ◽  
Emotional Stress ◽  
Office Workers ◽  
Autonomic Nerve ◽  
Nerve Regulation

scholarly journals Mastery Imagery Ability Is Associated With Positive Anxiety and Performance During Psychological Stress

2021 ◽  
Vol 12 ◽  
Author(s):  
Sarah E. Williams ◽  
Mary L. Quinton ◽  
Jet J. C. S. Veldhuijzen van Zanten ◽  
Jack Davies ◽  
Clara Möller ◽  
...  
Keyword(s):  
Psychological Stress ◽  
Stressful Event ◽  
Imagery Ability ◽  
Somatic Anxiety ◽  
Self Confidence ◽  
Path Analyses ◽  
Stress Task ◽  
And Performance ◽  
Acute Psychological Stress ◽  
The Relationship

Mastery imagery (i.e., images of being in control and coping in difficult situations) is used to regulate anxiety. The ability to image this content is associated with trait confidence and anxiety, but research examining mastery imagery ability's association with confidence and anxiety in response to a stressful event is scant. The present study examined whether trait mastery imagery ability mediated the relationship between confidence and anxiety, and the subsequent associations on performance in response to an acute psychological stress. Participants (N = 130; 55% male; Mage = 19.94 years; SD = 1.07 years) completed assessments of mastery imagery ability and engaged in a standardized acute psychological stress task. Immediately prior to the task, confidence, cognitive and somatic anxiety intensity, and interpretation of anxiety symptoms regarding the task were assessed. Path analyses supported a model whereby mastery imagery ability mediated the relationship between confidence and cognitive and somatic anxiety interpretation. Greater mastery imagery ability and confidence were both directly associated with better performance on the stress task. Mastery imagery ability may help individuals experience more facilitative anxiety and perform better during stressful tasks. Improving mastery imagery ability by enhancing self-confidence may help individuals successfully cope with anxiety elicited during stressful situations.

Complement Cascade Activation After an Acute Psychological Stress Task

2008 ◽  
Vol 70 (4) ◽  
pp. 387-396 ◽  
Author(s):  
Victoria E. Burns ◽  
Kate M. Edwards ◽  
Christopher Ring ◽  
Mark Drayson ◽  
Douglas Carroll
Keyword(s):  
Psychological Stress ◽  
Complement Cascade ◽  
Stress Task ◽  
Acute Psychological Stress

Brain connectivity in patients with schizophrenia related to psychological stress

2017 ◽  
Vol 41 (S1) ◽  
pp. S344-S344
Author(s):  
M. Castro ◽  
L. Drucaroff ◽  
E. Costanzo ◽  
A. Wainsztein ◽  
S. Guinjoan ◽  
...  
Keyword(s):  
Psychological Stress ◽  
Resting State ◽  
Mental Arithmetic ◽  
Brain Connectivity ◽  
Block Design ◽  
Autonomic Response ◽  
Psychotic Symptoms ◽  
Temporal Connectivity ◽  
Stress Task ◽  
Competing Interest

IntroductionIt is commonly accepted that in most patients with schizophrenia external factors act on genetic predisposition to produce active psychotic symptoms. In fact, we showed that patients with schizophrenia have an abnormal brain activation and peripheral autonomic response to psychological stress. We sought to characterize the brain connectivity networks of such response in schizophrenia.MethodsWe studied the pattern of brain connectivity in relation to mental arithmetic stress paradigm in 21 patients and 21 healthy subjects aged 18 to 50 years, using 3T-fMRI. A period of 6 minutes of resting state acquisition (PRE) were followed by a block design with three 1-minute CONTROL task (one digit sum), 1-minute STRESS task (two digit subtraction) and 1-minute rest after task (POST). Pairwise Pearson correlations were calculated between 90 regions of interest. Data were analyzed with MATLAB and SPSS software.ResultsPatients with schizophrenia showed a lower connectivity network between fronto-temporal limbic areas compared with control subjects during control and stress task. Moreover, we observed a great variability of link density during resting state in patients but not in controls, and it diminishes in response to task.ConclusionsPatients present abnormalities in networks related to stress response showing an alteration in fronto-temporal connectivity, and a poor and random modulation of these networks at rest. Current and previous findings suggest abnormal fronto-temporal connectivity that ultimately would lead to psychotic symptoms emergency in response to an environmental stressor and, even, could be related to hypervigilance and misattribution feeding into the paranoid cognition characteristic of patients with schizophrenia.Disclosure of interestThe authors have not supplied their declaration of competing interest.

scholarly journals Association between sleep bruxism and stress sensitivity in an experimental psychological stress task

2011 ◽  
Vol 32 (6) ◽  
pp. 395-399 ◽  
Author(s):  
Hitoshi Abekura ◽  
Masahiro Tsuboi ◽  
Tomohisa Okura ◽  
Kazuko Kagawa ◽  
Shinsuke Sadamori ◽  
...  
Keyword(s):  
Psychological Stress ◽  
Sleep Bruxism ◽  
Stress Sensitivity ◽  
Stress Task

scholarly journals Effect on Time Domain Parameters of HRV after Slow Breathing Exercise in Type 2 Diabetes Mellitus

2017 ◽  
Vol 12 (1) ◽  
pp. 15-20
Author(s):  
Jenefer Yesmin ◽  
Noorzahan Begum ◽  
Sultana Ferdousi
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Heart Rate ◽  
Type 2 Diabetes Mellitus ◽  
Autonomic Nerve ◽  
Diabetic Patients ◽  
Breathing Exercise ◽  
Autonomic Nerve Function ◽  
Slow Breathing

Background: Cardiac autonomic nerve dysfunction has been associated with Type 2 Diabetes Mellitus (T2DM) with reduced Heart Rate Variability (HRV). Regular practice of slow breathing exercise (SBE) improves cardiac autonomic nerve function.Objective: To assess the effects of slow breathing exercise on cardiac autonomic nerve function by analysis of HRV in patients with Type 2 Diabetes Mellitus (T2DM).Methods: This prospective interventional study was carried out in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University in 2015. For this, total 30 male diagnosed T2DM patients from the Out Patient Department of Endocrinology, BSMMU aged 45-55 years with diseases duration of 5-10 years were included in the study group. All the patients underwent slow breathing exercise (SBE -30 mins twice daily) for 3 months along with medical treatment. Mean heart rate (HR), mean R-R interval, standard deviation of the NN intervals (SDNN), Square root of mean squared differences of successive N-N intervals (RMSSD) of HRV parameters were recorded at the beginning of 3 months and also at the end of 3 months of study period. Thirty age, BMI matched healthy subject also included as control. For statistical analysis paired and unpaired sample t-test were done as applicable.Results: In this study, Pre-exercise value of mean HR was significantly higher (p< 0.001) and Pre-exercise values of mean R-R interval, SDNN and RMSSD were significantly lower (p< 0.001) in diabetic patients in comparison to control. After 3 months of performing SBE, post exercise values of all parameters were improved significantly (p< 0.001).Conclusion: The results of this study revealed that SBE has some beneficial effects on cardiac autonomic balance in T2DM patients.Bangladesh Soc Physiol. 2017, June; 12(1): 15-20

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