scholarly journals Effects of COVID-19 lockdown on heart rate variability

2020 ◽  
Author(s):  
Nicolas Bourdillon ◽  
Sasan Yazdani ◽  
Laurent Schmitt ◽  
Gregoire P Millet
Keyword(s):  
Heart Rate ◽  
High Frequency ◽  
Well Being ◽  
Standing Position ◽  
Subjective Well Being ◽  
French Population ◽  
Health States ◽  
Non Invasive ◽  
Monitoring Well ◽  
Vas Score

Introduction: Strict lockdown rules were imposed to the French population from 17 March to 11 May 2020, which may result in limited possibilities of physical activity, modified psychological and health states. This report is focused on HRV parameters kinetics before, during and after this lockdown period. Methods: 95 participants were included in this study, who underwent regular orthostatic tests (a 5-minute supine followed by a 5-minute standing recording of heart rate (HR)) on a regular basis before, during and after the lockdown (BSL, CFN and RCV, respectively). HR, power in low- and high-frequency bands (LF, HF, respectively) and root mean square of the successive differences (RMSSD) were computed for each orthostatic test, and for each positions. Subjective well-being was assessed on a 0-10 visual analogic scale (VAS). Results: Out of the 95 participants, 19 (WB+) reported an improved well-being (i.e., increase >2 in VAS score) during CFN, contradictory to the 76 other participants (WB-). There was an increase in HR and a decrease in RMSSD when measured supine in CFN and RCV, compared to BSL in WB-, whilst opposite results were found in WB+ (i.e. decrease in HR and increase in RMSSD in CFN and RCV; increase in LF and HF in RCV). There was a moderate significant correlation between VAS and HR, RMSSD, HF, respectively, in the supine position; the higher the VAS score (i.e., subjective well-being), the higher the RMSSD and HF and the lower the HR. In standing position, HRV parameters were not modified during CFN. Conclusion: The strict COVID-19 lockdown likely had opposite effects on French population as 20% of participants improved parasympathetic activation (RMSSD, HF) and rated positively this period, whilst 80% showed altered responses and deteriorated well-being. The changes in HRV parameters during and after the lockdown period were in line with subjective well-being responses. These results confirmed the usefulness of HRV as a non-invasive means for monitoring well-being and health in the general population.

scholarly journals Effects of COVID-19 lockdown on heart rate variability

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242303
Author(s):  
Nicolas Bourdillon ◽  
Sasan Yazdani ◽  
Laurent Schmitt ◽  
Grégoire P. Millet
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
High Frequency ◽  
Well Being ◽  
Standing Position ◽  
Subjective Well Being ◽  
French Population ◽  
Health States ◽  
Non Invasive ◽  
Vas Score

Introduction Strict lockdown rules were imposed to the French population from 17 March to 11 May 2020, which may result in limited possibilities of physical activity, modified psychological and health states. This report is focused on HRV parameters kinetics before, during and after this lockdown period. Methods 95 participants were included in this study (27 women, 68 men, 37 ± 11 years, 176 ± 8 cm, 71 ± 12 kg), who underwent regular orthostatic tests (a 5-minute supine followed by a 5-minute standing recording of heart rate (HR)) on a regular basis before (BSL), during (CFN) and after (RCV) the lockdown. HR, power in low- and high-frequency bands (LF, HF, respectively) and root mean square of the successive differences (RMSSD) were computed for each orthostatic test, and for each position. Subjective well-being was assessed on a 0–10 visual analogic scale (VAS). The participants were split in two groups, those who reported an improved well-being (WB+, increase >2 in VAS score) and those who did not (WB-) during CFN. Results Out of the 95 participants, 19 were classified WB+ and 76 WB-. There was an increase in HR and a decrease in RMSSD when measured supine in CFN and RCV, compared to BSL in WB-, whilst opposite results were found in WB+ (i.e. decrease in HR and increase in RMSSD in CFN and RCV; increase in LF and HF in RCV). When pooling data of the three phases, there were significant correlations between VAS and HR, RMSSD, HF, respectively, in the supine position; the higher the VAS score (i.e., subjective well-being), the higher the RMSSD and HF and the lower the HR. In standing position, HRV parameters were not modified during CFN but RMSSD was correlated to VAS. Conclusion Our results suggest that the strict COVID-19 lockdown likely had opposite effects on French population as 20% of participants improved parasympathetic activation (RMSSD, HF) and rated positively this period, whilst 80% showed altered responses and deteriorated well-being. The changes in HRV parameters during and after the lockdown period were in line with subjective well-being responses. The observed recordings may reflect a large variety of responses (anxiety, anticipatory stress, change on physical activity…) beyond the scope of the present study. However, these results confirmed the usefulness of HRV as a non-invasive means for monitoring well-being and health in this population.

Increased high-frequency heart rate variability during insulin-induced hypoglycaemia in healthy humans

2004 ◽  
Vol 106 (6) ◽  
pp. 583-588 ◽  
Author(s):  
Hartmut SCHÄCHINGER ◽  
Johannes PORT ◽  
Stuart BRODY ◽  
Lilly LINDER ◽  
Frank H. WILHELM ◽  
...  
Keyword(s):  
Heart Rate ◽  
High Frequency ◽  
Concomitant Increase ◽  
Plasma Adrenaline ◽  
Non Invasive ◽  
Hyperinsulinaemic Clamp ◽  
Healthy Humans ◽  
Plasma Insulin Levels ◽  
Single Blind ◽  
Cardiac Autonomic Activity

Despite causing sympathetic activation, prolonged hypoglycaemia produces little change in HR (heart rate) in healthy young adults. One explanation could be concurrent parasympathetic activation, resulting in unchanged net effects of autonomic influences. In the present study, hypoglycaemic (2.7 mmol/l) and normoglycaemic (4.7 mmol/l) hyperinsulinaemic clamp studies were performed after normoglycaemic baseline clamp periods with 15 healthy volunteers (seven male; mean age, 27 years) on two occasions in a randomized single-blind cross-over design. Non-invasive indices of cardiac autonomic activity and hormones were measured at baseline and 1 h after the beginning of hypoglycaemia or control normoglycaemia. Plasma insulin levels and mean HR were similar during both conditions. During hypoglycaemia, there was a 485% increase in plasma adrenaline (epinephrine). A shortening of the pre-ejection period by 45% suggested strong sympathetic cardiac activation. High-frequency (0.15–0.45 Hz) HRV (HR variability) increased, indicating a concomitant increase in parasympathetic tone. Thus, during hypoglycaemia-induced sympathetic cardiac activation in healthy adults, parasympathetic mechanisms are involved in stabilizing mean HR.

scholarly journals Health and Subjective Well-Being in Later Adulthood: Different Health States-Different Needs?

2009 ◽  
Vol 1 (1) ◽  
pp. 23-45 ◽  
Author(s):  
Benjamin Schüz ◽  
Susanne Wurm ◽  
Lisa M. Warner ◽  
Clemens Tesch-Römer
Keyword(s):  
Well Being ◽  
Subjective Well Being ◽  
Health States

Make the Patient the True Customer for Health Care

2016 ◽  
Author(s):  
Mark D. Sullivan
Keyword(s):  
Health Care ◽  
Health Insurance ◽  
Health Services ◽  
Affordable Care Act ◽  
Well Being ◽  
The United States ◽  
Subjective Well Being ◽  
Health States ◽  
Care Health ◽  
Care Costs

Despite accelerating expenditures on health care, the United States is falling behind peer countries in population health. The mismatch between dollars spent on health care and health achieved raises the question of the value of health services. How should we value these? The Affordable Care act expands access to care but does not question expert valuation of health states and health services. Rather than beginning with health insurance, a more productive path for our thinking proceeds from the nature of health to the nature of health care to the nature of health insurance. If we are to keep health care costs from rising no faster than GDP, we must make the patient the true customer for health care. Health policy should not aim to minimize objective disease or maximize subjective well-being, but to foster health capability. This encompasses the ability to enjoy health and to pursue it.

scholarly journals To compare intrapartum cardiotocographic (CTG) recording with conventional intermittent fetal heart auscultation during labor

2014 ◽  
Vol 2 (03) ◽  
pp. 76-79
Author(s):  
Isha Bansal ◽  
Richa Kansal ◽  
R. Mahendru ◽  
Sunita Siwach ◽  
Deepak Singla ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Blood Gas Analysis ◽  
Well Being ◽  
Gas Analysis ◽  
Non Invasive ◽  
Fetal Ecg ◽  
Invasive Techniques ◽  
Heart Auscultation

Standard evaluation of fetal well-being during labor includes the periodic assessment of the fetal heart rate (FHR), its pattern and response to intrapartum stimuli and events. Effective methods of evaluation and meaningful interpretation of FHR data range from non-invasive techniques like Intermittent Auscultation, continuous electronic fetal heart rate (FHR) monitoring to invasive techniques of fetal blood gas analysis and fetal ECG.

Monitoring the Heart Rate Variability Responses to Training Loads in Competitive Swimmers Using a Smartphone Application and the Banister Impulse-Response Model

2020 ◽  
pp. 1-9
Author(s):  
Eva Piatrikova ◽  
Nicholas J. Willsmer ◽  
Marco Altini ◽  
Mladen Jovanović ◽  
Lachlan J.G. Mitchell ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Impulse Response ◽  
Coefficient Of Variation ◽  
Seasonal Changes ◽  
Well Being ◽  
Smartphone Application ◽  
Response Model ◽  
Subjective Well Being ◽  
Competitive Swimmers

Purpose: First, to examine whether heart rate variability (HRV) responses can be modeled effectively via the Banister impulse-response model when the session rating of perceived exertion (sRPE) alone, and in combination with subjective well-being measures, are utilized. Second, to describe seasonal HRV responses and their associations with changes in critical speed (CS) in competitive swimmers. Methods: A total of 10 highly trained swimmers collected daily 1-minute HRV recordings, sRPE training load, and subjective well-being scores via a novel smartphone application for 15 weeks. The impulse-response model was used to describe chronic root mean square of the successive differences (rMSSD) responses to training, with sRPE and subjective well-being measures used as systems inputs. Changes in CS were obtained from a 3-minute all-out test completed in weeks 1 and 14. Results: The level of agreement between predicted and actual HRV data was R2 = .66 (.25) when sRPE alone was used. Model fits improved in the range of 4% to 21% when different subjective well-being measures were combined with sRPE, representing trivial-to-moderate improvements. There were no significant differences in weekly group averages of log-transformed (Ln) rMSSD (P = .34) or HRV coefficient of variation of Ln rMSSD (P = .12); however, small-to-large changes (d = 0.21–1.46) were observed in these parameters throughout the season. Large correlations were observed between seasonal changes in HRV measures and CS (changes in averages of Ln rMSSD: r = .51, P = .13; changes in coefficient of variation of Ln rMSSD: r = −.68, P = .03). Conclusion: The impulse-response model and data collected via a novel smartphone application can be used to model HRV responses to swimming training and nontraining-related stressors. Large relationships between seasonal changes in measured HRV parameters and CS provide further evidence for incorporating a HRV-guided training approach.

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