scholarly journals Development of a Novel Contactless Mechanocardiograph Device

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Kouhyar Tavakolian ◽  
Faranak M. Zadeh ◽  
Yindar Chuo ◽  
Ali Vaseghi ◽  
Bozena Kaminska

A novel method of detecting mechanical movement of the heart, Mechanocardiography (MCG), with no connection to the subject's body is presented. This measurement is based on radar technology and it has been proven through this research work that the acquired signal is highly correlated to the phonocardiograph signal and acceleration-based ballistocardiograph signal (BCG) recorded directly from the sternum. The heart rate and respiration rate have been extracted from the acquired signal as two possible physiological monitoring applications of the radar-based MCG device.

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 453
Author(s):  
Mette Uldahl ◽  
Janne W. Christensen ◽  
Hilary M. Clayton

Riders need core stability to follow and guide the horse’s movements and avoid giving unintended or conflicting signals. This study evaluated the rider’s performance of exercises on a gymnastic ball with on-horse performance and indicators of stress in the horse. Twenty experienced riders were scored performing three exercises on a gymnastic ball and for quality and harmony when riding based on evaluation of video recordings in which conflict behaviours were evident. The horse’s heart rate and number of conflict behaviors during the riding test and cortisol levels after completion of the test were measured. The rider’s ability to roll the pelvis from side-to-side on a gymnastic ball was highly correlated with ability to circle the pelvis on the ball and with quality and harmony during riding. However, pelvic roll and riding quality and harmony showed a trend toward a negative correlation with balancing skills on the ball. It appears that the ability to actively move the pelvis is more relevant to equestrian performance than static balancing skill. Horses ridden by riders with better pelvic mobility and control showed significantly fewer conflict behaviors. On the contrary, high scores for balancing on the gymnastic ball were negatively correlated with the horses’ working heart rates, suggesting a less energetic performance. Pelvic control and mobility may be predictive for equestrian skills and riding harmony.


Author(s):  
I.G. Eskesen ◽  
J. Teilmann ◽  
B.M. Geertsen ◽  
G. Desportes ◽  
F. Riget ◽  
...  

During satellite tagging of harbour porpoises (Phocoena phocoena), heart rate, respiration rate and cortisol value were measured to evaluate stress effects during handling and tagging. Respiration rates were obtained using video recordings, heart rates were recorded and serum cortisol levels were analysed from blood samples. Differences in heart rates, respiration rates and cortisol levels before and during the tagging events were investigated. An overall significant decrease of 31.5% in respiration rate was found during the tagging event period, while mature porpoises respired significantly more often than immature individuals. Though significant differences in heart rates were found for some individuals, no general significant change for all animals was detected. We found no correlation between cortisol concentration and either heart rate or respiration rate, nor did we find any relationships between cortisol and month of year, sex and body length. As high individual variations occurred in response to tagging of harbour porpoises, it is not possible to give general advice based on the factors investigated, on how to reduce stress during handling. However, pouring water over the animal and lowering it into the water seem to stabilize a stressed animal. Therefore, general precaution and individual judgement based on experience is essential when handling wild harbour porpoises.


2020 ◽  
Vol 8 (B) ◽  
pp. 1036-1040
Author(s):  
Alwiyah Mukaddas ◽  
Tatat Rahmita Utami ◽  
Amelia Rumi

BACKGROUND: Treatment therapy with antibiotics is one of the factors supporting success in the treatment of sepsis. AIM: This study aims to evaluate the use of antibiotics in patients with sepsis using parameters of the day of decline in body temperature, heart rate, respiration rate, changes in consciousness status, and comorbid factors. MATERIALS AND METHODS: The design of this study is pilot study with a retrospective approach on sample of 14 sepsis patients who met the inclusion criteria. Descriptive analysis using the univariate method for see changes in levels of body temperature, length of stay, respiration rate, heart rate, comorbid factors, and changes in the consciousness status. RESULTS: The results showed an average value for decline of body temperature after using antibiotics with a baseline of 38.47°C–37.87°C, heart rate shows the average value from baseline heart rate after using antibiotics from baseline of 110.8 bpm to 88.4 bpm, the respiration rate shows the average value for the respiration rate after using antibiotics from baseline of 30.8 x/min to 22.1 x/min, Glasgow Coma Scale (GCS) score showed an average value after using antibiotics from baseline 9 to 7, on comorbid factors showing six patients with one comorbid and eight patients with more than 1 comorbid factor. CONCLUSION: The study concluded that body temperature is still in the category of fever, heart rate, and respiration rate which are the normal category, patient consciousness is still at the level of somnolence even though patient’s GCS score has decreased, and patients with one factor of comorbidities are faster in death because they have a fatal type of comorbid such as acute of hepatitis, coma hepaticum, and acute kidney injury.


2021 ◽  
Vol 9 (18) ◽  
pp. 77-90
Author(s):  
Ricardo Luna Santos ◽  
Aldo Hernández Luna ◽  
Jacinto Torres Jiménez ◽  
Manuel Cruz Luna

In this research work, the development of an electronic device that allows reading the temperature, heart rate, and location of a person, and send this data by a text message to a smartphone using a mobile network is proposed. The proposed monitoring device uses sensors that help us detect different types of signals which are translated into human language using microcontrollers, electronics, and various types of programming processes to develop functions to obtain data. As a result, the device will send a text message only if the readings return a parameter different from the normal ranges or when the wearer of the device presses a help button. This will send text messages to the phone number linked to a patient or a patient's relative.


2021 ◽  
Vol 3 ◽  
Author(s):  
Rongjian Zhao ◽  
Lidong Du ◽  
Zhan Zhao ◽  
Xianxiang Chen ◽  
Jie Sun ◽  
...  

The aim of this work is to present a method for accurately estimating heart and respiration rates under different actual conditions based on a mattress which was integrated with an optical fiber sensor. During the estimation, a ballistocardiogram (BCG) signal, which was obtained from the optical fiber sensor, was used for extracting the heart rate and the respiration rate. However, due to the detrimental effects of the differential detector, self-interference, and variation of installation status of the sensor, the ballistocardiogram (BCG) signal was difficult to detect. In order to resolve the potential concerns of individual differences and body interferences, adaptive regulations and statistical classifications spectrum analysis were used in this paper. Experiments were carried out to quantify heart and respiration rates of healthy volunteers under different breathing and posture conditions. From the experimental results, it could be concluded that (1) the heart rates of 40–150 beats per minute (bpm) and respiration rates of 10–20 breaths per minute (bpm) were measured for individual differences; (2) for the same individuals under four different posture contacts, the mean errors of heart rates were separately 1.60 ± 0.98 bpm, 1.94 ± 0.83 bpm, 1.24 ± 0.59 bpm, and 1.06 ± 0.62 bpm, in contrast, the mean errors of the polar beat device were 1.09 ± 0.96 bpm, 1.44 ± 0.99 bpm, and 1.78 ± 0.94 bpm. Furthermore, the experimental results were validated by conventional counterparts which used skin-contacting electrodes as their measurements. It was reported that the heart rate was 0.26 ± 2.80 bpm in 95% confidence intervals (± 1.96SD) in comparison with Philips sure-signs VM6 medical monitor, and the respiration rate was 0.41 ± 1.49 bpm in 95% confidence intervals (± 1.96SD) in comparison with ECG-derived respiratory (EDR) measurements for respiration rates. It was indicated that the developed system using adaptive regulations and statistical classifications spectrum analysis performed better and could easily be used under complex environments.


2015 ◽  
Vol 39 (2) ◽  
pp. 116
Author(s):  
Dewi Apri Astuti ◽  
Asep Sudarman

<p>This study was aimed to evaluate the physiological status, blood profiles and body composition of sheep fed with Ca-saponified lemuru oil coated by herbs. Twenty fat-tailed sheep (av. BW 23±1.2 kg) were used in this experiment by using Completely Randomized Design with five treatments ration and four replications of each. Sheep fed with concentrate containing 3% Ca-saponified lemuru oil and king grass (1:1) ad libitum. Treatments were control diet without herbs (R1); Ca-saponified lemuru oil coated by curcumae domestica (R2); coated by Zingiber officinale Rosc (R3); coated by Eugenia polyantha (R4) and coated by Pluchea indica Less (R5). Data of physiological parameters were measured three times a day, in the morning, at noon and afternoon. Blood samples were collected at the end of the experiment through jugular vein, together with zero sample for Urea Space measurement. The variables observed were physiological data (heart rate, respiration rate, and rectal temperature), blood profiles (erythrocyte, hemoglobin, packed cell volume (PCV), leucocytes) and body composition (water, protein and fat) measured using Urea Space technique. Results of the study showed that sheep fed with Ca-saponified lemuru oil coated by herbs was not significantly different on heart rate, respiration rate and rectal temperature among treatments. Meanwhile, total leucocytes, neutrophil cell, and lymphocytes significantly increased (P&lt;0.05) by the treatment. Body composition percentage (water, protein and fat) were same in all treatments, except the total body fat and energy retained. In conclusion, supplementation of 3% Ca-saponified lemuru oil coated by Curcumae domestica, Zingiber officinale Rosc, Eugenia polyantha and Pluchea indica Less in fat-tailed sheep had no effect on physiological parameters, but improved the leucocyte and neutrophil cells. Total body fat and energy retained lower compared to control treatment.</p><p>(Key words: Body composition, Ca-saponified, Herbs, Lemuru oil, Urea space)</p>


PLoS ONE ◽  
2013 ◽  
Vol 8 (5) ◽  
pp. e62628 ◽  
Author(s):  
Christoph M. Zehendner ◽  
Heiko J. Luhmann ◽  
Jenq-Wei Yang
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document