Effects of pentobarbital on temperature and heart rate of rats subjected to cold

1962 ◽  
Vol 203 (4) ◽  
pp. 758-761 ◽  
Author(s):  
C. L. Gemmill ◽  
K. M. Browning
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Standard Dose ◽  
The Body ◽  
Sodium Pentobarbital ◽  
Previous Exposure ◽  
Exposure To Cold ◽  
Before And After

A study at 5 C was made of body temperature and heart rate after a standard dose of sodium pentobarbital in normal, thyroidectomized, and hypermetabolic rats before and after subjection to 5 C for 46 hr. It was found that after subjection to cold in the normal rats, the body temperature and heart rate in some animals had more ability to recover after the barbiturate than in rats without previous exposure to cold. There was no ability to recover in the thyroidectomized animals either before or after subjection to cold. Most of the normal and thyroidectomized rats either with or without previous exposure to cold given sodium 3,3',5-l-triiodothyronine (T-3) had recoveries after the barbiturate. Some rats given T-3 and subjected to cold had a primary fall in temperature and heart rate that was followed by recovery and then a secondary fall.

Oxygen Consumption, Body Temperature and Heart Rate of Woodchucks Entering Hibernation

1958 ◽  
Vol 194 (1) ◽  
pp. 83-91 ◽  
Author(s):  
Charles P. Lyman
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Body Temperature ◽  
Blocking Agent ◽  
The Body ◽  
Sodium Pentobarbital ◽  
Temperature Dependent ◽  
Anterior Portion ◽  
Total Period ◽  
Ganglionic Blocking

Oxygen consumption, heart rate and temperatures from various parts of the body were measured in woodchucks ( Marmota monax) entering hibernation. Comparisons were made with the chilling of woodchucks anesthetized with sodium pentobarbital, with and without the ganglionic blocking agent bis(trimethylammonium)hexane dibromide. Heart rate and oxygen consumption began to decline before any drop in body temperature as animals entered hibernation. The process was usually not continuous, for periodically the heart speeded, oxygen consumption and muscle action potentials increased and, shortly thereafter, the temperature rose transiently with the anterior portion of the body warming faster than the posterior. These partial rewarmings were less and less frequent as the total period of hibernation became longer. As hibernators chilled, the heart was the warmest area, with the thorax warmer than the abdomen. Dead woodchucks curled in the hibernating position chilled faster than the hibernators with the central portion of the abdomen chilling the slowest. In the supine, anesthetized animal, with or without the ganglionic blocking agent, the flow of blood altered the chilling so that the area near the heart remained slightly warmer than the abdomen. If curled in the hibernating position, the heart region remained much warmer than the abdomen because blood flow was curtailed by the restricted position. Chilling of the hibernator was identical to the curled, anesthetized animal except that the thoracic region of the former remained warmer due to periodic rewarmings, and also shivering in this well-muscled area. It is concluded that entrance into hibernation is not strictly temperature-dependent and that the animal is vasodilated during this process.

The influence of osteopathic correction on the rate of various rhythms of the body

2019 ◽  
pp. 64-71 ◽  
Author(s):  
A. E. Chernikova ◽  
Yu. P. Potekhina
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Age Groups ◽  
Biomechanical Properties ◽  
Dispersion Analysis ◽  
The Body ◽  
Body Tissues ◽  
Age Related ◽  
Significant Difference ◽  
Before And After

Introduction. An osteopathic examination determines the rate, the amplitude and the strength of the main rhythms (cardiac, respiratory and cranial). However, there are relatively few studies in the available literature dedicated to the influence of osteopathic correction (OC) on the characteristics of these rhythms.Goal of research — to study the influence of OC on the rate characteristics of various rhythms of the human body.Materials and methods. 88 adult osteopathic patients aged from 18 to 81 years were examined, among them 30 men and 58 women. All patients received general osteopathic examination. The rate of the cranial rhythm (RCR), respiratory rate (RR) heart rate (HR), the mobility of the nervous processes (MNP) and the connective tissue mobility (CTM) were assessed before and after the OC session.Results. Since age varied greatly in the examined group, a correlation analysis of age-related changes of the assessed rhythms was carried out. Only the CTM correlated with age (r=–0,28; p<0,05) in a statistically significant way. The rank dispersion analysis of Kruskal–Wallis also showed statistically significant difference in this indicator in different age groups (p=0,043). With the increase of years, the CTM decreases gradually. After the OC, the CTM, increased in a statistically significant way (p<0,0001). The RCR varied from 5 to 12 cycles/min in the examined group, which corresponded to the norm. After the OC, the RCR has increased in a statistically significant way (p<0,0001), the MNP has also increased (p<0,0001). The initial heart rate in the subjects varied from 56 to 94 beats/min, and in 15 % it exceeded the norm. After the OC the heart rate corresponded to the norm in all patients. The heart rate and the respiratory rate significantly decreased after the OC (р<0,0001).Conclusion. The described biorhythm changes after the OC session may be indicative of the improvement of the nervous regulation, of the normalization of the autonomic balance, of the improvement of the biomechanical properties of body tissues and of the increase of their mobility. The assessed parameters can be measured quickly without any additional equipment and can be used in order to study the results of the OC.

scholarly journals IDENTIFYING THE MENTAL STATUS OF BEDRIDDEN ELDERLY BY THE BODY TEMPERATURE, HEART RATE, AND SKIN CONDUCTIVITY USING AN ARDUINO SENSOR MODULE

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
W.B.P.N. Herath ◽  
R.A.K.I. Ranasinghe ◽  
M.P.C. Sandaru ◽  
I.A.S. Lakmali ◽  
A.G.N.K. Aluthgama ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Galvanic Skin Response ◽  
Emotional State ◽  
The Body ◽  
Blood Capillary ◽  
Sensor Module ◽  
Skin Response ◽  
Skin Conductivity ◽  
The Relationship

Addressing the emotional and mental health of the bedridden elderly is necessary as they are more likely to be depressed being isolated and dependent on a caregiver for a prolonged time. Several studies have been carried out to identify the mental stress of patients through their skin conductivity. The variations in the sympathetic nervous system reflect the emotional state of a person. This is demonstrated by the Galvanic Skin Response and thus can be used as a denotation of psychological or physiological arousal. Such arousal causes the blood capillary dilation, increment of sweat gland activities making the skin further conductive to electricity. In this study we develop a sensor module composed of a Galvanic Skin Response sensor for the bed ridden elderly and identify the relationship between body temperature, heart rate and GSR of them. The experiment is conducted upon 10 bed ridden elderly aged from 60 – 80 years of the Mihinthale region. The observations demonstrate a correlation between the heart rate, body temperature, skin conductivity and the human physiological states.

scholarly journals Measurement of Heart Rate, and Body Temperature Based on Android Platform

2020 ◽  
Vol 2 (1) ◽  
pp. 26-33
Author(s):  
Musyahadah Arum Pertiwi ◽  
I Dewa Gede Hari Wisana ◽  
Triwiyanto Triwiyanto ◽  
Sasivimon Sukaphat
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Temperature Sensor ◽  
Liquid Crystal Display ◽  
Vital Signs ◽  
Health Condition ◽  
The Body ◽  
Digital Data ◽  
Mental Condition ◽  
Measurement Results

Heart rate and body temperature can be used to determine the vital signs of humans. Heart rate and body temperature are two important parameters used by paramedics to determine the physical health condition and mental condition of a person. Because if your heart rate or body temperature is not normal then you need to make further efforts to avoid things that are not desirable. The purpose of this study is to design a heart rate and body temperature. In this study, the heart rate is detected using a finger sensor which placed on the finger. This sensor detects the heart rate pulses through infrared absorption of blood hemoglobin, and measure the body temperature using a DS18B20 temperature sensor which is placed axially. DS18B20 sensor works by converting temperature into digital data. The measurement results will be displayed on liquid crystal display (LCD) 2 x 16 and the data will be sent to android mobile phone via Bluetooth.  After the comparision beetwen the desain and the standart, the error is 0.46% for beats per minutes (BPM) parameters and 0.31 degrees Celsius for temperature parameters.

scholarly journals PRE AND POSTPRANDIAL THERMOGRAPHIC PROFILE OF GREEN IGUANAS (IGUANA IGUANA)

2016 ◽  
Vol 73 (2) ◽  
pp. 425
Author(s):  
Simona Rusu ◽  
Zdenek Knotek ◽  
Radu Lacatus ◽  
Ionel Papuc
Keyword(s):  
Heat Transfer ◽  
Body Temperature ◽  
Temperature Difference ◽  
The Body ◽  
Significant Difference ◽  
Before And After ◽  
Significant Temperature ◽  
Green Iguanas ◽  
The Right ◽  
Head Temperature

Abstract The body temperature of 10 clinically healthy green iguanas (Iguana iguana) was measured using a thermographic camera (FLIR E6, Flir Systems Sweden) before and after the food was offered. For each animal there were performed a total of 6 measurements (3 before feeding and 3 after the food was offered). The purpose of this experiment was to observe the thermographic pattern of the body before and after the feeding, since herbivore reptiles tend to bask after the feeding to increase the body temperature that will help them afterwards digest the food. The animals were housed in individual vivariums with every animal having a basking spot available. The pictures were taken outside the vivarium in an adjacent room. The animals were handled with gloves and transported in a cardboard box in order to avoid heat transfer between the handler and the iguana that would have produced thermal artefacts. Each individual was placed on a table on a styrofoam slate, again, to avoid the heat transfer between the table and the animal`s body. For each animal a total of 4 pictures were taken (up, front, left and right). The pictures were analysed with the FLIR Tools program that is provided by the manufacturer and 3 temperatures were taken into consideration (the head temperature, body temperature on the right side and body temperature on the left side). The temperatures were compared between them and with the temperature of the vivariums that consisted of the average between the temperature in 3 different spots (basking spot, the feeding bowl site and the coldest spot) measured with an infrared thermometer GM300 (Benetech, China). The temperature of the body was dependent on the vivarium temperature and it was a significant temperature difference between the measurements before the feeding and after the feeding. Also we discovered a significant difference between the head temperature and the body temperature on the left side before the feeding that disappeared after the animals ate. There was also a significant difference between the temperature on right side and on left side of the animals both before and after the feeding. No significant temperature difference was observed between the head and the right side of the body neither before nor after the feeding.

A Patch-Type Flexible Physiological Monitor on a Non-Woven Material

2006 ◽  
Vol 969 ◽  
Author(s):  
Wen-Yang Chang ◽  
Jin-Sheng Chang ◽  
Chun-Hsun Chu ◽  
Tzong-Che Ho ◽  
Yu-Cheng Lin
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
The Body ◽  
Hot Press ◽  
Postural Change ◽  
Good Adhesion ◽  
Patch Type ◽  
Speed Up ◽  
Trace Line ◽  
Hot Press Process

AbstractThe study reported is about an integrated wireless physiological monitor module of the flexible patch type, used on a non-woven material to package this module by a hot press process. The module can monitor the body temperature and heart rate. Experimental results showed that the specification and accuracy should be 25-40 °C ± 0.5 °C and 50-200 bpm ± 2 bpm. The main advantage of the module is that the postural change can be monitored. At the same time, it has also a good adhesion between substrate and components, without crack of conductor trace line after bending the module repeatedly. Thickness is about 2 mm. The aim of this study is to speed up the physiological technology and to create more efficiency by miniaturization. In addition, the acceptance level of wearing it is increased by the small and ergonomic design.

Heart rate and body temperature during free diving of Weddell seals

1987 ◽  
Vol 253 (2) ◽  
pp. R344-R351 ◽  
Author(s):  
R. D. Hill ◽  
R. C. Schneider ◽  
G. C. Liggins ◽  
A. H. Schuette ◽  
R. L. Elliott ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Adult Male ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Weddell Seal ◽  
The Body ◽  
Weddell Seals ◽  
The Mean ◽  
Slow Onset

We have developed and successfully used the first microprocessor-controlled monitors for collection of data on depth, heart rate, and body temperature of one fetal and five adult male freely swimming Weddell seals. Adult seals almost invariably experienced a prompt bradycardia at the start of each dive, and the mean heart rate during diving was significantly lower for dives greater than 20 min (P greater than 0.999). The heart rate was also significantly greater during the ascent portion of dives when compared with the descent portion (P greater than 0.95). The fetal seal experienced a slow onset of bradycardia when its mother dived; during diving the fetal heart rate decreased by an average of 1.1 beats/min for each minute of the dive. The fetal heart rate generally took approximately 10 min to recover to predive levels after its mother resurfaced to breathe. The body temperature of one adult male Weddell seal showed a decrease of greater than 1.5 degrees C from resting levels before dives of greater than 15 min were initiated and a drop of over 2 degrees C before dives of greater than 30 min duration.

scholarly journals Heart rate reveals torpor at high body temperatures in lowland tropical free-tailed bats

2017 ◽  
Vol 4 (12) ◽  
pp. 171359 ◽  
Author(s):  
M. Teague O'Mara ◽  
Sebastian Rikker ◽  
Martin Wikelski ◽  
Andries Ter Maat ◽  
Henry S. Pollock ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Metabolic Rate ◽  
Ambient Temperature ◽  
The Body ◽  
Metabolic Rates ◽  
Body Temperatures ◽  
Wide Range ◽  
Save Energy ◽  
Molossus Molossus

Reduction in metabolic rate and body temperature is a common strategy for small endotherms to save energy. The daily reduction in metabolic rate and heterothermy, or torpor, is particularly pronounced in regions with a large variation in daily ambient temperature. This applies most strongly in temperate bat species (order Chiroptera), but it is less clear how tropical bats save energy if ambient temperatures remain high. However, many subtropical and tropical species use some daily heterothermy on cool days. We recorded the heart rate and the body temperature of free-ranging Pallas' mastiff bats ( Molossus molossus ) in Gamboa, Panamá, and showed that these individuals have low field metabolic rates across a wide range of body temperatures that conform to high ambient temperature. Importantly, low metabolic rates in controlled respirometry trials were best predicted by heart rate, and not body temperature . Molossus molossus enter torpor-like states characterized by low metabolic rate and heart rates at body temperatures of 32°C, and thermoconform across a range of temperatures. Flexible metabolic strategies may be far more common in tropical endotherms than currently known.

scholarly journals THE EFFECT OF PHYSICAL LOAD ON PSYCHOPHYSIOLOGICAL ADAPTATION AND THE FUNCTIONAL STATUS OF THE CARDIOVASCULAR SYSTEM IN BADMINTON PLAYERS

2019 ◽  
Vol 19 (3) ◽  
pp. 14-19
Author(s):  
T Vorobieva ◽  
L Kharchenko ◽  
E Shamshualeeva
Keyword(s):  
Heart Rate ◽  
Functional Status ◽  
Cardiovascular System ◽  
Anaerobic Capacity ◽  
Rapid Test ◽  
Well Being ◽  
The Body ◽  
Physical Load ◽  
State University ◽  
Before And After

Aim. The article deals with studying the features of psychophysiological adaptation to physical load and the functional status of the cardiovascular system in badminton players. Materials and methods. The study was conducted in the premises of Dostoevsky Omsk State University during badminton training activities as a part of Omsk Higher Educational Establishments Spartakiadpreparation in September 2016 – May 2018. Fifteen students aged 18–19 years participated in the study on a voluntary basis. The study was conducted using the electronic surveys placed onhttps://onlinetestpad.com: the Spielberger state-trait anxiety inventory and the Well-Being, Activity, Mood test. To establish the maximum anaerobic capacity of the body, the Margaria testwas used. A Zeugner’s polychromatic rapid test was used for establishing the emotional background. Results. The analysis of the results obtained revealed that the highest heart rate values were registered during a long badminton rally and reached 190 bpm. During pauses heart rate decreased to 160 bpm. A badminton rally of 4–6 seconds allowed maintaining the heart rate at 160 bpm.If followed by pauses heart rate decreased to 130 bpm. Assessing the mechanisms of psychophysiological adaptation and studying the subjective characteristics of situational and personal anxiety, well-being, performance and emotional background before and after training allow identifying athletes with different adaptation capacities and increasing their physical performance. Conclusion. The analysis of the results obtained demonstrated changes in psychophysiological adaptation and the functional status of the cardiovascular system. It was also revealed that physical load provoked stress in the mechanisms of psychophysiological adaptation.

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