scholarly journals THE INFLUENCE OF UNIQUE MELODIES OF PRASHASTHI AND KAMATH SONGS IN SRI LANKAN FOLK MUSIC ON HEART RATE

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Isuru Dehideniya
Keyword(s):  
Heart Rate ◽  
Folk Music ◽  
The Other ◽  
Sri Lankan ◽  
Spiritual Wellbeing ◽  
Heart Rates ◽  
The Mean ◽  
Music Genre

Music plays an important role in our day to day life as a source of entertainment. More importantly music can also affect the other aspects of physical, mental, social and spiritual wellbeing of a person. According to Western and Eastern literature, heart rate correlates with certain musical aspects including tempo, melody, and music genre. The present research studied the variation of heart rate while listening to sedative and excitative Sri Lankan folk melodies. Prashasthi and Kamath folk musical creations have been selected for this experiment. Forty-five men between the ages of 25-30 who had never studied music were used as samples in this research. The mean heart rates of the subjects have increased significantly while listening to the prashasthi song. The mean heart of the subjects three minutes after stopping the prashasthi song remained significantly increased compared to their baseline (p < 0.01). Listening to Kamath songs did not significantly change the mean heart rates of the subjects.

scholarly journals Heart rates and abdominal temperatures of free-ranging South Georgian shags, Phalacrocorax georgianus

1997 ◽  
Vol 200 (4) ◽  
pp. 661-675 ◽  
Author(s):  
R M Bevan ◽  
I L Boyd ◽  
P J Butler ◽  
K Reid ◽  
A J Woakes ◽  
...  
Keyword(s):  
Heart Rate ◽  
Dive Depth ◽  
Dive Duration ◽  
Diving Behaviour ◽  
The South ◽  
Data Logger ◽  
Heart Rates ◽  
The Mean ◽  
Free Ranging ◽  
Mean Heart Rate

The South Georgian shag (Phalacrocorax georgianus) shows a remarkable diving ability comparable to that of penguins, yet nothing is known of the physiology of these birds. In this study, heart rates and abdominal temperatures were recorded continuously in four free-ranging South Georgian shags using an implanted data-logger. A time&shy;depth recorder was also attached to the back of the implanted birds to record their diving behaviour. The diving behaviour of the birds was essentially similar to that reported in other studies, with maximum dive durations for individual birds ranging between 140 and 287 s, and maximum depths between 35 and 101 m. The birds, while at the nest, had a heart rate of 104.0&plusmn;13.1 beats min-1 (mean &plusmn; s.e.m.) and an abdominal temperature of 39.1&plusmn;0.2 &deg;C. During flights of 221&plusmn;29 s, heart rate and abdominal temperature rose to 309.5&plusmn;18.0 beats min-1 and 40.1&plusmn;0.3 &deg;C, respectively. The mean heart rate during diving, at 103.7&plusmn;13.7 beats min-1, was not significantly different from the resting values, but the minimum heart rate during a dive was significantly lower at 64.8&plusmn;5.8 beats min-1. The minimum heart rate during a dive was negatively correlated with both dive duration and dive depth. Abdominal temperature fell progressively during a diving bout, with a mean temperature at the end of a bout of 35.1&plusmn;1.7 &deg;C. The minimum heart rate during diving is at a sub-resting level, which suggests that the South Georgian shag responds to submersion with the 'classic' dive response of bradycardia and the associated peripheral vasoconstriction and utilisation of anaerobic metabolism. However, the reduction in abdominal temperature may reflect a reduction in the overall metabolic rate of the animal such that the bird can remain aerobic while submerged.

scholarly journals Use of a Smart Watch for Early Detection of Paroxysmal Atrial Fibrillation: Validation Study

JMIR Cardio ◽  
10.2196/14857 ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. e14857 ◽  
Author(s):  
Tomohiko Inui ◽  
Hiroki Kohno ◽  
Yohei Kawasaki ◽  
Kaoru Matsuura ◽  
Hideki Ueda ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Pulse Rate ◽  
Validation Study ◽  
Paroxysmal Atrial Fibrillation ◽  
Wearable Devices ◽  
Coefficient Of Determination ◽  
Rate Data ◽  
Heart Rates ◽  
The Mean

Background Wearable devices with photoplethysmography (PPG) technology can be useful for detecting paroxysmal atrial fibrillation (AF), which often goes uncaptured despite being a leading cause of stroke. Objective This study is the first part of a 2-phase study that aimed at developing a method for immediate detection of paroxysmal AF using PPG-integrated wearable devices. In this study, the diagnostic performance of 2 major smart watches, Apple Watch Series 3 and Fitbit (FBT) Charge HR Wireless Activity Wristband, each equipped with a PPG sensor, was compared, and the pulse rate data outputted from those devices were analyzed for precision and accuracy in reference to the heart rate data from electrocardiography (ECG) during AF. Methods A total of 40 subjects from patients who underwent cardiac surgery at a single center between September 2017 and March 2018 were monitored for postoperative AF using telemetric ECG and PPG devices. AF was diagnosed using a 12-lead ECG by qualified physicians. Each subject was given a pair of smart watches, Apple Watch and FBT, for simultaneous pulse rate monitoring. The heart rate of all subjects was also recorded on the telemetry system. Time series pulse rate trends and heart rate trends were created and analyzed for trend pattern similarities. Those trend data were then used to determine the accuracy of PPG-based pulse rate measurements in reference to ECG-based heart rate measurements during AF. Results Of the 20 AF events in group FBT, 6 (30%) showed a moderate or higher correlation (cross-correlation function>0.40) between pulse rate trend patterns and heart rate trend patterns. Of the 16 AF events in group Apple Watch (workout [W] mode), 12 (75%) showed a moderate or higher correlation between the 2 trend patterns. Linear regression analyses also showed a significant correlation between the pulse rates and the heart rates during AF in the subjects with Apple Watch. This correlation was not observed with FBT. The regression formula for Apple Watch W mode and FBT was X=14.203 + 0.841Y and X=58.225 + 0.228Y, respectively (where X denotes the mean of all average pulse rates during AF and Y denotes the mean of all corresponding average heart rates during AF), and the coefficient of determination (R2) was 0.685 and 0.057, respectively (P<.001 and .29, respectively). Conclusions In this validation study, the detection precision of AF and measurement accuracy during AF were both better with Apple Watch W mode than with FBT.

Use of the cardiopulmonary flow index to evaluate cardiac function in Thoroughbred horses

1991 ◽  
Vol 62 (2) ◽  
pp. 43-47 ◽  
Author(s):  
A. J. Guthrie ◽  
Valerie M. Killeen ◽  
Maria S.G. Mülders ◽  
J. F.W. Grosskopf
Keyword(s):  
Heart Rate ◽  
Cardiac Output ◽  
Cardiac Function ◽  
Cardiac Disease ◽  
Clinical Signs ◽  
Simultaneous Recording ◽  
Flow Index ◽  
Heart Rates ◽  
Thoroughbred Horses ◽  
The Mean

The ratio of the cardiopulmonary blood volume to stroke volume is called the cardiopulmonary flow index (CPFI). The CPFI can be determined indirectly from the simultaneous recording of a radio cardiogram and an electrocardiogram. The CPFI and cardiac output were measured simultaneously in horses (n = 10) that were diagnosed as having cardiac disease. The diseased subjects were probably all exposed to feed contaminated with the ionophore, salinomycin, and all showed clinical signs indicative of chronic toxic myocarditis. The results obtained from these subjects were compared with those from control animals and significant differences (P 0,05) were found between the mean CPFI of the control horses and those with macroscopically visible myocardial fibrosis on post mortem examination. No significant differences were found between the means of the cardiac output measured in either of the groups of horses. The effect of pharmacological acceleration of the heart rate on the CPFI was also studied. Significant differences (P 0,05) were found between the mean CPFI and the slopes of the regression lines of CPFI on heart rate of the control and principal groups of horses. These differences were greatest at heart rates near to the resting heart rates of the individuals. The CPFI was found to be a more sensitive measure of cardiac function than cardiac output, in the horses.

Monitoring Work Intensity during Occupational Therapy

1983 ◽  
Vol 50 (2) ◽  
pp. 49-51
Author(s):  
Marte Bachynski ◽  
G.R. Cumming
Keyword(s):  
Heart Rate ◽  
Low Back Pain ◽  
Back Pain ◽  
Occupational Therapy ◽  
Low Back ◽  
Work Intensity ◽  
Heart Rates ◽  
Mean Values ◽  
Cardiac Reserve ◽  
The Mean

Patients with physical disability due to leg amputation, stroke, or low back pain performed a graded exercise test on a bicycle or armcrank ergometer. Their voluntary maximum and pre-exercise heart rates were determined and used to calculate their heart rate or cardiac reserve. Patients were subsequently monitored by ambulatory electrocardiography during the occupational therapy activities which made up their respective treatment programs. The peak heart rates for each activity were determined and expressed as a percentage of the patient's cardiac reserve. The means and ranges of working intensity were calculated for patients grouped by disability. The mean values of 24% and 27% of cardiac reserve for the older amputees and hemiplegic patients respectively were low compared to the mean values of 55% found for both the traumatic amputees and patients with low back pain. Wide ranges in values were found, particularly for hemiplegic patients, and may reflect the disimilar degree of disability among patients with the same diagnosis as well as the presence of factors affecting heart rate via the sympathetic nervous system.

scholarly journals Electrocardiogram of Clinically Healthy Mithun (Bos frontalis): Variation among Strains

2010 ◽  
Vol 2010 ◽  
pp. 1-8 ◽  
Author(s):  
Sagar Sanyal ◽  
Pradip Kumar Das ◽  
Probal Ranjan Ghosh ◽  
Kinsuk Das ◽  
Kezha V. Vupru ◽  
...  
Keyword(s):  
Heart Rate ◽  
Respiration Rate ◽  
Rectal Temperature ◽  
The Other ◽  
P Wave ◽  
Qrs Complex ◽  
T Wave ◽  
Genetic Strains ◽  
The Mean ◽  
Bovine Species

A study was conducted to establish the normal electrocardiogram in four different genetic strains of mithun (Bos frontalis). Electrocardiography, cardiac electrical axis, heart rate, rectal temperature and respiration rate were recorded in a total of 32 adult male mithun of four strains ( each). It was found that the respiration and heart rates were higher () in Manipur than other three strains. Amplitude () and duration of P wave and QRS complex differed () among the strains. Mizoram strain had the highest amplitude and duration of P wave and QRS complex. On the other hand, higher () amplitude and duration of T wave were recorded in Arunachalee and Mizoram strains. The mean electrical axis of QRS complex that were recorded for Arunachalee and Manipur strains were similar to that reported for other bovine species; whereas the electrical axis of QRS for Nagamese and Mizoram strains were more close to feline and caprine species, respectively. In conclusion, electrocardiogram of mithun revealed that the amplitude and duration of P wave, QRS complex and T wave were different among four different genetic strains of mithun and the electrical axis of QRS complex for Nagamese and Mizoram mithuns are dissimilar to bovine species.

scholarly journals Structure, Intensity and Player Duels in Under-13 Football Training in Switzerland

2020 ◽  
Vol 17 (22) ◽  
pp. 8351
Author(s):  
Jonas Uebersax ◽  
Ralf Roth ◽  
Tobias Bächle ◽  
Oliver Faude
Keyword(s):  
Heart Rate ◽  
Learning Environment ◽  
Training Session ◽  
The Other ◽  
Heart Rates ◽  
Inactivity Time ◽  
Rate Sensor ◽  
Football Training ◽  
Anterior Direction

We evaluated the structure (i.e., the different training parts), contents (i.e., the various activities used), intensity and occurrence of contact situations and headers during training sessions in under-13 football in Switzerland. A total of 242 players from 20 different teams on average aged 11.4 (SD 0.7) years participated. The participants were filmed during a typical training session while they were equipped with a heart rate sensor. The sessions were systematically recorded to allow for detailed analyses. Furthermore, a preliminary and explorative analysis of the influence of the level of play on these results was conducted. The overall findings indicated that training included 33.4% playing forms, 29.5% training forms, 28.4% inactivity time and 8.7% athletics. The highest heart rates were achieved in the playing forms (166 min−1, 83% HRmax) compared to the other two activities (training forms 154 min−1, 77% HRmax; athletics 150 min−1, 75% HRmax). Each player had 12.8 duels and 0.6 headers per training. Overall, most duels were conducted from the anterior direction. Playing forms induce higher cardio-circulatory load as well as a better learning environment. Potentially dangerous situations like contact with other players or headers occurred in a single player on average every six min during a training session.

A Physiological Approach to the Study of Attachment: The Mother's Attention and Her infant's Heart Rate

1974 ◽  
Vol 8 (1) ◽  
pp. 3-7 ◽  
Author(s):  
Russell Meares ◽  
Thomas Horvath
Keyword(s):  
Heart Rate ◽  
Breast Feeding ◽  
The Other ◽  
Habituation Rate ◽  
Heart Rates ◽  
Other Hand ◽  
Physiological Approach ◽  
And Control ◽  
External Stimuli ◽  
Attachment Behaviour

Mothers and their neonatal babies were studied during breast-feeding and control periods. Those mothers whose attention to external stimuli diminished during feeding, when this was inferred from habituation rate, had babies whose heart rates significantly increased during feeding. On the other hand, mothers who did not show the expected relative inattention to external stimuli during feeding had babies whose heart rate did not significantly increase when they were fed. The possible relevance of these findings to the study of attachment behaviour is considered.

scholarly journals Heart rates and swim speeds of emperor penguins diving under sea ice

1992 ◽  
Vol 165 (1) ◽  
pp. 161-180 ◽  
Author(s):  
G. L. Kooyman ◽  
P. J. Ponganis ◽  
M. A. Castellini ◽  
E. P. Ponganis ◽  
K. V. Ponganis ◽  
...  
Keyword(s):  
Heart Rate ◽  
Cardiac Output ◽  
Stroke Volume ◽  
Sea Ice ◽  
Body Mass ◽  
Anaerobic Glycolysis ◽  
Energy Contribution ◽  
Heart Rates ◽  
Emperor Penguins ◽  
The Mean

Heart rate during overnight rest and while diving were recorded from five emperor penguins with a microprocessor-controlled submersible recorder. Heart rate, cardiac output and stroke volume were also measured in two resting emperor penguins using standard electrocardiography and thermodilution measurements. Swim velocities from eight birds were obtained with the submersible recorder. The resting average of the mean heart rates was 72 beats min-1. Diving heart rates were about 15% lower than resting rates. Cardiac outputs of 1.9-2.9 ml kg-1 s-1 and stroke volumes of 1.6-2.7 ml kg-1 were similar to values recorded from mammals of the same body mass. Swim velocities averaged 3 m s-1. The swim speeds and heart rates suggest that muscle O2 depletion must occur frequently: therefore, many dives require a significant energy contribution from anaerobic glycolysis.

Heart rates and diving behavior of leatherback sea turtles in the eastern pacific ocean

1999 ◽  
Vol 202 (9) ◽  
pp. 1115-1125 ◽  
Author(s):  
A.L. Southwood ◽  
R.D. Andrews ◽  
M.E. Lutcavage ◽  
F.V. Paladino ◽  
N.H. West ◽  
...  
Keyword(s):  
Heart Rate ◽  
Sea Turtles ◽  
Dive Depth ◽  
Dive Duration ◽  
Diving Behavior ◽  
Leatherback Turtles ◽  
Heart Rates ◽  
The Mean ◽  
Leatherback Sea Turtles ◽  
Mean Heart Rate

Heart rates and diving behavior of leatherback sea turtles (Dermochelys coriacea) were monitored at sea during the internesting interval. Instruments that recorded the electrocardiogram and the depth and duration of dives were deployed on six female leatherback turtles as they laid eggs at Playa Grande, Costa Rica. Turtles dived continually for the majority of the internesting interval and spent 57–68 % of the time at sea submerged. Mean dive depth was 19+/−1 m (mean +/− s.d.) and the mean dive duration was 7.4+/−0.6 min. Heart rate declined immediately upon submergence and continued to fall during descent. All turtles showed an increase in heart rate before surfacing. The mean heart rate during dives of 17.4+/−0.9 beats min-1 (mean +/− s.d.) was significantly lower than the mean heart rate at the surface of 24.9+/−1.3 beats min-1 (P&lt;0.05). Instantaneous heart rates as low as 1.05 beats min-1 were recorded during a 34 min dive. The mean heart rate over the entire dive cycle (dive + succeeding surface interval; 19.4+/−1.3 beats min-1) was more similar to the heart rate during diving than to the heart rate at the surface. Although dive and surface heart rates were significantly different from each other, heart rates during diving were 70 % of heart rates at the surface, showing that leatherback turtles do not experience a dramatic bradycardia during routine diving.

scholarly journals Use of a Smart Watch for Early Detection of Paroxysmal Atrial Fibrillation: Validation Study (Preprint)

2019 ◽  
Author(s):  
Tomohiko Inui ◽  
Hiroki Kohno ◽  
Yohei Kawasaki ◽  
Kaoru Matsuura ◽  
Hideki Ueda ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Heart Rate ◽  
Pulse Rate ◽  
Validation Study ◽  
Paroxysmal Atrial Fibrillation ◽  
Wearable Devices ◽  
Coefficient Of Determination ◽  
Rate Data ◽  
Heart Rates ◽  
The Mean

BACKGROUND Wearable devices with photoplethysmography (PPG) technology can be useful for detecting paroxysmal atrial fibrillation (AF), which often goes uncaptured despite being a leading cause of stroke. OBJECTIVE This study is the first part of a 2-phase study that aimed at developing a method for immediate detection of paroxysmal AF using PPG-integrated wearable devices. In this study, the diagnostic performance of 2 major smart watches, Apple Watch Series 3 and Fitbit (FBT) Charge HR Wireless Activity Wristband, each equipped with a PPG sensor, was compared, and the pulse rate data outputted from those devices were analyzed for precision and accuracy in reference to the heart rate data from electrocardiography (ECG) during AF. METHODS A total of 40 subjects from patients who underwent cardiac surgery at a single center between September 2017 and March 2018 were monitored for postoperative AF using telemetric ECG and PPG devices. AF was diagnosed using a 12-lead ECG by qualified physicians. Each subject was given a pair of smart watches, Apple Watch and FBT, for simultaneous pulse rate monitoring. The heart rate of all subjects was also recorded on the telemetry system. Time series pulse rate trends and heart rate trends were created and analyzed for trend pattern similarities. Those trend data were then used to determine the accuracy of PPG-based pulse rate measurements in reference to ECG-based heart rate measurements during AF. RESULTS Of the 20 AF events in group FBT, 6 (30%) showed a moderate or higher correlation (cross-correlation function&gt;0.40) between pulse rate trend patterns and heart rate trend patterns. Of the 16 AF events in group Apple Watch (workout [W] mode), 12 (75%) showed a moderate or higher correlation between the 2 trend patterns. Linear regression analyses also showed a significant correlation between the pulse rates and the heart rates during AF in the subjects with Apple Watch. This correlation was not observed with FBT. The regression formula for Apple Watch W mode and FBT was X=14.203 + 0.841Y and X=58.225 + 0.228Y, respectively (where X denotes the mean of all average pulse rates during AF and Y denotes the mean of all corresponding average heart rates during AF), and the coefficient of determination (<i>R</i><sup>2</sup>) was 0.685 and 0.057, respectively (<i>P</i>&lt;.001 and .29, respectively). CONCLUSIONS In this validation study, the detection precision of AF and measurement accuracy during AF were both better with Apple Watch W mode than with FBT.

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