Orthostatic Circulatory Control in the Elderly Evaluated by Non-Invasive Continuous Blood Pressure Measurement

1990 ◽  
Vol 79 (1) ◽  
pp. 73-79 ◽  
Author(s):  
B. P. M. Imholz ◽  
J. H. A. Dambrink ◽  
J. M. Karemaker ◽  
W. Wieling
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Time Course ◽  
Blood Pressure Measurement ◽  
Elderly Subjects ◽  
Postural Changes ◽  
Significant Difference ◽  
Head Up Tilt ◽  
Blood Pressures

1. Continuous orthostatic responses of blood pressure and heart rate were measured in 40 healthy and active elderly subjects over 70 years of age in order to assess the time course and rapidity of orthostatic cardiovascular adaptation in old age. 2. During the first 30 s (initial phase) the effects of active standing and passive head-up tilt closely resembled those observed earlier in younger age groups. Standing up was accompanied by a drop (mean ± SD) in systolic and diastolic blood pressures of 26 ± 13 mmHg and 12 ± 18 mmHg, respectively, at around 10 s, and a subsequent rise up to 11 ± 17 mmHg and 8 ± 6 mmHg above supine values at around 20 s. The drop in blood pressure upon standing was accompanied by a transient increase in heart rate with a maximum of 13 beats/min, followed by a gradual decrease to 7 beats/min above supine levels. These characteristic transient changes were absent upon a passive head-up tilt. 3. After 1–2 min of standing (early steady-state phase) diastolic blood pressure and heart rate increased significantly after active and passive postural changes. On average, for all subjects systolic blood pressure tended to increase from control during 5–10 min standing, reaching a significant difference at 10 min. During standing, the largest increases in systolic blood pressure were found in subjects with the lowest supine blood pressures. 4. In conclusion, for the investigation of orthostatic circulatory responses in elderly subjects the following factors have to be taken into account: active versus passive changes in posture, the timing of the blood pressure reading, and the level of supine blood pressure.

Circulatory adaptation to orthostatic stress in healthy 10–14-year-old children investigated in a general practice

1991 ◽  
Vol 81 (1) ◽  
pp. 51-58 ◽  
Author(s):  
J. H. A. Dambrink ◽  
B. P. M. Imholz ◽  
J. M. Karemaker ◽  
W. Wieling
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Steady State ◽  
Initial Phase ◽  
Time Course ◽  
Free Standing ◽  
Postural Tachycardia ◽  
Circulatory Control ◽  
Head Up Tilt ◽  
Blood Pressures

1. The magnitude and time course of circulatory adaptation to active standing were investigated in healthy premenarchic girls and boys (n = 24; 10–14 years old) by non-invasive measurement of heart rate and continuous finger blood pressure (Finapres). 2. Four subjects (two girls, two boys) showed presyncopal symptoms after 4–9 min of free standing. 3. In the 20 non-fainting subjects, changes in blood pressure and heart rate upon standing did not differ between girls (n = 10) and boys (n = 10). In the initial phase of standing (first 30 s) systolic and diastolic blood pressures dropped by 22 ± 14 (mean ± sd) and 16 ± 7 mmHg, respectively, at 8 ± 2 s. Blood pressure subsequently recovered and showed an overshoot in all subjects. The transient drop in blood pressure was accompanied by an increase in heart rate of 40 ± 7 beats/min. These characteristic transient changes were not observed with passive head-up tilt. During the early steady-state phase (2 min), systolic blood pressure was similar to the supine value and diastolic blood pressure rose by 11 ± 5 mmHg. Heart rate increased by 25 ± 11 beats/min. In six of the subjects (three girls, three boys) the increase in heart rate exceeded 30 beats/min (postural tachycardia). Little further changes were observed during prolonged (10 min) standing. 4. Typical findings in the four near-fainting subjects were higher supine heart rates, no blood pressure overshoot in the initial phase (in three out of four subjects), postural tachycardia in the early steady-state phase and progressive decreases in blood pressure and heart rate afterwards. 5. In conclusion, for investigation of orthostatic circulatory adaptation in childhood it is important to pay attention to the dynamics of the circulatory response. No important differences appear to exist in orthostatic circulatory control between premenarchic girls and boys: orthostatic tachycardia and fainting appear to be common in both.

scholarly journals Dental anxiety in patients undergoing oral surgery and its effects on blood pressure and heart rate

2020 ◽  
Vol 9 (8) ◽  
pp. e316985536
Author(s):  
Jaqueline Oliveira Barreto ◽  
Julliana Cariry Palhano Freire ◽  
Arthur Willian de Lima Brasil ◽  
Cristian Statkievicz ◽  
Francisley Ávila Souza ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Oral Surgery ◽  
Dental Anxiety ◽  
Waiting Room ◽  
Demographic Questionnaire ◽  
Significant Difference ◽  
Before And After ◽  
Evaluation Anxiety

Objective: To assess dental anxiety in patients undergoing oral surgery, as well as its impact on blood pressure and heart rate. Material and Methods: A total of 233 patients answered a socio-demographic questionnaire and another one based on the Corah dental anxiety scale. Blood pressure and heart rate were assessed at three moments while: patients were in the waiting room, immediately before and after the procedure. Results: This study revealed a prevalence of anxiety of 77.3%. There was a statistically significant difference in mean systolic blood pressure and heart rate at the three moments of the evaluation. Anxiety was prevalent in the sample and was observed from the time in the waiting room until the time when local anesthesia was performed, causing variations in systolic blood pressure and heart rate, anxiety levels decreased after the end of the service. In conclusion, we observed that oral surgery is directly related to increased anxiety, and anxiety is mainly related to the change in heart rate.

scholarly journals Acute Hemodynamic Changes Associated with Zumba and ZOCA Dance Exercises among Females of Selected Gyms in Lusaka, Zambia

2020 ◽  
Vol 2 (1) ◽  
pp. 84-91
Author(s):  
Chanda Grace Chisunka ◽  
◽  
Gibson Sijumbila ◽  
Fastone Goma ◽  
◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Hemodynamic Changes ◽  
Aerobic Dance ◽  
Arterial Blood ◽  
Effective Dynamic ◽  
Blood Pressure Monitors ◽  
Blood Pressures

Background: Dynamic exercises are known to elicit hemodynamic changes such as an increase in arterial blood pressure and heart rate. Zumba and ZOCA are part of a fast growing group of dance fitness programmes designed to provide a cardiovascular dynamic workout. Despite their growing popularity, very few studies have been done to provide knowledge regarding the hemodynamic changes associated with these exercises. Methods: Case study in which 27 females took part in either a Zumba or ZOCA class. Using digital blood pressure monitors, recordings of blood pressure and heart rate were taken, firstly, before commencement of the exercise, secondly, after 30 minutes after exercise and thirdly, at the end of the class.Results: Mean baseline blood pressures were 118 (SD = 14) mmHg and 77 (SD = 7) mmHg, systolic and diastolic blood pressures, respectively. After 30 minutes of dancing, mean systolic blood pressure increased to 130 (SD = 19) mmHg (p˂ 0.05) while diastolic blood pressureonly rose to an average of 80 (SD = 8) mmHg (p˃ 0.05). At the end of the class (after the cool down phase) mean systolic blood pressure reduced to 109 (SD = 13) mmHg (p˂0.05) while diastolic blood pressure reduced to 74(SD = 12) mmHg (p˂ 0.05). Conclusions: Zumba and ZOCA elicited significant hemodynamic changes that can be attributed to these exercises stimulating the cardiovascular regulatory mechanisms (e.g central command and exercise-pressor) sufficiently and hence resulting in autonomic adjustmentsthat were concurrent with effective dynamic exercise. Keywords: Blood Pressure, Heart Rate, Aerobic, Dance Exercise

scholarly journals Relation of body mass index (BMI) with cardiovascular response to head up tilt in healthy subjects

2020 ◽  
Vol 15 (1) ◽  
pp. 6-10
Author(s):  
Sadia Afrin Rimi ◽  
Shamima Sultana ◽  
Iffat Rezwana ◽  
Sultana Ferdousi
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Healthy Subjects ◽  
Cardiovascular Response ◽  
Tilt Test ◽  
Tilt Table ◽  
Chi Square ◽  
Female Head ◽  
Head Up Tilt

Background: Tilt table test is used for the last few decades to detect cause in unexplained syncope. The response to tilting may vary physiologically with obesity. Objective: To assess the relationship of BMI to cardiovascular response to tilting. Methods: This experimental study was conducted from March 2019 to Feb 2020 on 90 healthy subjects with different BMI. Fifty one subjects of both gender with BMI 18.5-24.9 kg/m2 were included in the non-obese group and 39 subjects of both gender with BMI of 25-29.9 kg/m2 were included in overweight group and they were further subdivided into male and female. Head up tilting was done for 10 minutes at 600 by using a motorized tilt table. Systolic blood pressure (SBP), diastolic blood pressure (DBP) were recorded by an automatic sphygmomanometer. Heart rate (HR) and peripheral capillary oxygen saturation (SpO2) were measured by a pulse oximeter. For statistical analysis, Independent sample ‘t’ test, Pearson’s correlation test and Chi square tests were applied. Results: Significantly smaller rise of heart rate was observed in overweight males and greater fall of systolic blood pressure was observed in overweight females. Conclusion: This study concluded that over weight is associated with reduced orthostatic tolerance to head up tilt test in both genders. J Bangladesh Soc Physiol. 2020, June; 15(1): 6-10

A comparison of CAT Doppler and oscillometric Memoprint machines for non-invasive blood pressure measurement in conscious cats

2005 ◽  
Vol 7 (3) ◽  
pp. 147-152 ◽  
Author(s):  
Rosanne E. Jepson ◽  
Vivien Hartley ◽  
Michael Mendl ◽  
Sarah ME Caney ◽  
David J Gould
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Blood Pressure Measurement ◽  
Systemic Hypertension ◽  
Pressure Measurements ◽  
Non Invasive ◽  
Measuring Devices ◽  
Oscillometric Device ◽  
Significant Difference

Indirect blood pressure measurements were compared in 28 conscious cats using Doppler and oscillometric blood pressure-measuring devices. Ten cats were used to compare Doppler measurements between two examiners and 18 cats were used to compare Doppler and oscillometric measurements. The Doppler machine obtained systolic and diastolic blood pressure readings in 100% and 51% of attempts, respectively. With the oscillometric machine, systolic and diastolic blood pressure readings were obtained in 52% of the attempts. With the Doppler, measures of mean systolic blood pressure between two examiners were positively correlated, but there was no correlation for diastolic blood pressure measures. When comparing the results obtained by Doppler and oscillometric machines there was no significant difference between mean systolic blood pressure readings, but the oscillometric machine produced significantly higher estimates of diastolic blood pressure. In both cases, the standard deviations for the oscillometric machine were considerably larger than those for the Doppler machine. The first reading of systolic blood pressure obtained with the Doppler machine was an excellent predictor of the mean of five readings, but this was not so for the oscillometric machine. It took less than 5 min to obtain five readings in 37.5% of cases with the Doppler machine but this was true for only 5% of cases with the oscillometric machine. Two cats with ophthalmological lesions consistent with systemic hypertension were identified. In these two patients, systolic blood pressure measurements were between 200 and 225 mmHg when measured by Doppler, and between 140 and 150 mmHg when measured by the oscillometric machine. This suggests that a lower reference range for normal systolic blood pressure values should be used for the oscillometric device.

Accuracy of the London School of Hygiene and Remler M2000 sphygmomanometers

1981 ◽  
Vol 61 (s7) ◽  
pp. 399s-401s ◽  
Author(s):  
D. J. Fitzgerald ◽  
W. G. O'Callaghan ◽  
K. O'Malley ◽  
E. T. O'Brien
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Calibration Error ◽  
London School ◽  
Lower Blood ◽  
Significant Difference ◽  
Blood Pressures ◽  
The Mean ◽  
Selection Of

1. The accuracy of the Remler M2000, a semiautomatic portable blood pressure recorder, was assessed with the London School of Hygiene (LSH) and Hawkesley random-zero sphygmomanometers used as reference standards. 2. The Remler gave higher recordings than the LSH sphygmomanometer, the mean systolic and diastolic differences being 5.9 mmHg (P < 0.001) and 4.7 mmHg (P < 0.001) respectively. No significant difference was demonstrated between paired Remler and Hawkesley recordings. 3. When simultaneous paired LSH and Hawkesley sphygmomanometer recordings were compared, the LSH gave lower blood pressures: 7.1 mmHg (P < 0.001) for systolic and 3.6 mmHg (P < 0.001) for diastolic recordings. 4. The LSH sphygmomanometer underestimates blood pressure, partly due to a calibration error but also because the selection of end points for this device differs from other methods of blood pressure measurement.

scholarly journals Pregnant Supports on Hemodynamics Responses during Postural Changes and Daily Physical Activities: a randomized control trial

2021 ◽  
Author(s):  
Kunanya Masodsai ◽  
Sasipa Buranapuntulug ◽  
Parunchaya Jamkrajang ◽  
Pei-Ni Chen ◽  
Rungchai Chaunchaiyakul
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Pregnant Women ◽  
Blood Perfusion ◽  
Physical Activities ◽  
Lower Limbs ◽  
Blood Flows ◽  
Postural Changes ◽  
Significant Difference ◽  
Daily Physical Activities

Abstract BackgroundPregnant supports have been designed to prevent structural deviations but may impair blood circulation of the lower limbs, in particular during the last trimester. In this study, we evaluate the effect of different pregnant supports on hemodynamics responses during postural changes and daily physical activities.MethodsTwelve last-trimester healthy pregnant women participated in this study. With randomized supports of casual wear (CW), pelvic band (PB), and pregnant pants (PP), subjects performed postural changes (standing and side lying using sitting as control), daily physical activities (climbing up and down stairs, lifting, sit-to-stand, and 10 min walking), and routine pregnant exercises. Hemodynamic responses including heart rate, blood pressure, stroke volume, cardiac output, local blood flow, and perfusion around the ankle were measured at the end of the 1st and 3rd minute after wearing pregnant supports.ResultsStanding position in CW group showed hemodynamic compensations via increasing diastolic blood pressure (DBP, 1st minute) and heart rate (HR, 3rd minute), whereas there were no significant changes in the PB and PP groups. Side lying position lowered cardiac responses in all groups, with higher blood perfusion in CW and PB, but not in PP. Cardiac variables, blood flows, and perfusions showed no significant difference among pregnant supports during daily physical activities, and routine pregnant exercises. The satisfaction evaluation on daily activities and routine exercises showed no difference among pregnant supports but the preferential pregnant support is PB.ConclusionIt can be concluded that PB offers similar hemodynamic adjustments during postural changes as casual wear. PB support is recommended for pregnant women for daily physical activities, as well as routine exercises. Trial registration: The trial is retrospectively registered in http://www.clinicaltrials.in.th (01/02/2021) with trial no: TCTR20210201003.

scholarly journals Effects of Lower Body Positive Pressure on Cardiovascular Responses During Walking in Elderly Women

2013 ◽  
pp. 653-662 ◽  
Author(s):  
T. SOTA ◽  
S. MATSUO ◽  
Y. UCHIDA ◽  
H. HAGINO ◽  
Y. KAWAI
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Elderly Women ◽  
Cardiovascular Responses ◽  
Elderly Subjects ◽  
Positive Pressure ◽  
Lower Body ◽  
Lower Body Positive Pressure ◽  
Body Positive

This study was undertaken to investigate the effects of lower body positive pressure (LBPP) on cardiovascular responses during a 15-min walking trial in young (22.1±0.4 years) and elderly women (67.8±1.1 years). The application of 20 mm Hg LBPP reduced ground reaction forces by 31.2±0.5 kgw in both groups. We hypothesized that cardiovascular responses to LBPP during walking were different between the young and elderly subjects. Applying 20 mm Hg of LBPP increased diastolic and mean blood pressure but not systolic blood pressure in both groups. LBPP-induced reduction in heart rate (HR) occurred more quickly in the young group compared to the elderly group (p<0.05). Applying LBPP also decreased double product (systolic blood pressure x HR) in both groups, suggesting that LBPP reduces myocardial oxygen consumption during exercise. These results suggest that heart rate responses to LBPP during exercise vary with increasing age.

scholarly journals Effects of Different Neck Manual Lymphatic Drainage Maneuvers on the Nervous, Cardiovascular, Respiratory and Musculoskeletal Systems in Healthy Students

2020 ◽  
Vol 9 (12) ◽  
pp. 4062
Author(s):  
Ángela Río-González ◽  
Ester Cerezo-Téllez ◽  
Cristina Gala-Guirao ◽  
Laura González-Fernández ◽  
Raquel Díaz-Meco Conde ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Respiratory Rate ◽  
Pain Threshold ◽  
Pressure Pain Threshold ◽  
Control Group ◽  
Pressure Pain ◽  
Significant Difference ◽  
Healthy Participants

The aim of this study is to describe the short-term effects of manual lymph drainage (MLD) isolated in supraclavicular area in healthy subjects. A 4-week cross-sectional, double-blinded randomized clinical trial was conducted. Participants: 24 healthy participants between 18 and 30 years old were recruited from Universidad Europea de Madrid from December 2018 to September 2019. A total of four groups were studied: control, placebo, Vodder, and Godoy. The order of the interventions was randomized. Resting Heart Rate and Oxygen Saturation, blood pressure, pressure pain threshold of trapezius muscle, respiratory rate, range of active cervical movements were measured before and after every intervention. All the participants fulfilled four different interventions with a one-week-wash-out period. No statistically significant differences were found between groups in descriptive data; neither in saturation of oxygen, diastolic blood pressure and cervical range of motion. Significant differences were found in favor of Vodder (p = 0.026) in heart rate diminution and in cardiac-rate-reduction. A significant difference in respiratory rate diminution is found in favor of the Godoy group in comparison with the control group (p = 0.020). A significant difference is found in favor of the Godoy group in systolic blood pressure decrease (p = 0.015) even in pressure pain threshold (p < 0.05). MLD decreases systolic blood pressure in healthy participants. However, it does not produce any changes in other physiologic outcomes maintaining physiologic values, which may suggest the safety of the technique in patients suffering from other pathologies.

A Prospective Multicenter Clinical Trial of Chinese Herbal Formula JZQG (Jiangzhuoqinggan) for Hypertension

2013 ◽  
Vol 41 (01) ◽  
pp. 33-42 ◽  
Author(s):  
Xiao-Lin Tong ◽  
Feng-Mei Lian ◽  
Qiang Zhou ◽  
Li-Peng Xu ◽  
Hang-Yu Ji ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Clinical Trial ◽  
Waist Circumference ◽  
Ambulatory Blood Pressure ◽  
Blood Pressure Measurement ◽  
Multicenter Clinical Trial ◽  
Beneficial Effects ◽  
Chinese Herbal ◽  
Significant Difference ◽  
Blood Pressures

A prospective multicenter clinical trial was conducted to compare the beneficial effects of a Chinese herbal medicine formula Jiangzhuoqinggan (JZQG) and western antihypertension drug irbesartan. JZQG is mainly composed of rhubarb, coptis, cassia, and uncaria. A total of 240 patients with mild to moderate hypertension were enrolled in the trial. Patients were assigned into two groups after screening: JZQG group and the irbesartan group. After four weeks of treatment, we compared the changes in routine blood pressure, 24 h ambulatory blood pressure, and waist circumference. There was a significant reduction in systolic blood pressure and diastolic blood pressure in the JZQG group (both p < 0.01). There were no significant differences between the reduction of systolic and diastolic blood pressures in the two treatment groups. From the 24 h ambulatory blood pressure measurement, the JZQG group showed a greater reduction in both systolic and diastolic blood pressures (in both daytime and nighttime) than the irbesartan group. Furthermore, there was a significant difference in waist circumference in the JZQG group (1.51 cm reduction; P < 0.05) but not the irbesartan group (0.42 cm). Thus, the JZQG formula may have therapeutic value in patients with both hypertension and metabolic syndrome.

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