The ergoscope. A device for the video display of heart rate by telemetry (L'Ergoscope, Dispositif d'Affichage sur Ecran de Television de la Frequence Cardiaque Recue par Telemetrie). (In French)

1986 ◽  
Vol 17 (4) ◽  
pp. 321
Keyword(s):  
Heart Rate ◽  
Video Display ◽  
Fréquence Cardiaque

Nocturnal headache: systemic arterial pressure and heart rate during sleep

Cephalalgia ◽  
1983 ◽  
Vol 3 (1_suppl) ◽  
pp. 54-57 ◽  
Author(s):  
Fabio Cirignotta ◽  
Giorgio Coccagna ◽  
Tommaso Sacquegna ◽  
Emiliana Sforza ◽  
Giuseppe Lamontanara ◽  
...  
Keyword(s):  
Heart Rate ◽  
Arterial Pressure ◽  
Rem Sleep ◽  
Continuous Monitoring ◽  
Systemic Arterial Pressure ◽  
Fréquence Cardiaque ◽  
The Awakening ◽  
Sono Stati ◽  
Autonomic Instability ◽  
Polygraphic Recording

In order to evaluate autonomic nervous system changes occurring before nocturnal headache attacks, we studied three subjects (one male, two females) suffering from chronic migraine. All three patients underwent a nocturnal polygraphic recording including continuous monitoring of systemic arterial pressure and heart rate. Two subjects showed increases and irregularities of arterial pressure before awakening with headache. These changes began during N–REM sleep and lasted during REM sleep preceding the awakening with headache. Heart rate did not change before the attacks. These findings do not support the hypothesis that autonomic instability during REM sleep represents the precipitating factor of the attacks. On a étudié avec des méthodes polygrafiques trois sujets (1 homme et deux femmes) souffrant d'hémicranie chronique avec des crises nocturnes. Chez deux malades les crises étaient précédées d'augmentation et d'irrégularité de la tension artérielle. Ces modifications commençaient pendant le sommeil N-REM et contineaient pendant le sommeil REM qui précédait le réveil avec hémicranie. La fréquence cardiaque n'a pas subi de modification avant les crises. Les résultats obtenus ne confirment l'hypothèse selon laquelle le facteur causant les crises est l'instabilité anticronique à la fase REM. Sono stati studiati con metodiche poligrafiche 3 soggetti (1 maschio e 2 femmine) affetti da emicrania cronica con attacchi notturni. In 2 di essi gli attacchi erano preceduti da incrementi ed irregolarità della pressione arteriosa. Tali modificazioni iniziavano durante il sonno N-REM e perduravano nel corso del sonno REM che precedeva il risveglio con cefalea. La frequenza cardiaca non si modificava prima dell'attacco. I risultati ottenuti non confermano l'ipotesi che il fattore precipitante gli attacchi emicranici sia l'instabilità anticronica della fase REM.

scholarly journals Effects of VDT tasks with a bright display at night on melatonin, core temperature, heart rate, and sleepiness

2003 ◽  
Vol 94 (5) ◽  
pp. 1773-1776 ◽  
Author(s):  
Shigekazu Higuchi ◽  
Yutaka Motohashi ◽  
Yang Liu ◽  
Mio Ahara ◽  
Yoshihiro Kaneko
Keyword(s):  
Heart Rate ◽  
Core Temperature ◽  
Rectal Temperature ◽  
Biological Clocks ◽  
Video Display ◽  
Healthy Male ◽  
Melatonin Concentration ◽  
Physiological Indicators ◽  
Nocturnal Increase ◽  
Salivary Melatonin

The effects of performing video display terminal (VDT) tasks with a bright display (BD) at night on nocturnal salivary melatonin concentration, rectal temperature, heart rate, and sleepiness were examined. Seven healthy male adults performed exciting VDT tasks with a BD and a dark display (DD) and boring VDT tasks with a BD and a DD from 2300 to 0200. The light intensities of the BD and DD were 45 and 15 lx at each subject's eye level, respectively. The exciting VDT task with both BD and DD significantly suppressed the nocturnal decrease in rectal temperature and heart rate and the nocturnal increase in sleepiness. The BD significantly suppressed the nocturnal decrease in rectal temperature during both exciting and boring VDT tasks. The nocturnal salivary melatonin concentration was significantly suppressed by the combination of the exciting task and BD. The results suggest that performing an exciting VDT task with a BD suppresses the nocturnal changes in melatonin concentration and other physiological indicators of human biological clocks.

Gender Differences in Psychophysiological Responses to Music Listening

2016 ◽  
Vol 8 (1) ◽  
pp. 53 ◽  
Author(s):  
Uma Gupta ◽  
B. S. Gupta
Keyword(s):  
Blood Pressure ◽  
Gender Differences ◽  
Heart Rate ◽  
Negative Affect ◽  
Positive Affect ◽  
Music Listening ◽  
Psychophysiological Responses ◽  
Fréquence Cardiaque ◽  
Pression Artérielle ◽  
Males And Females

AbstractThis study presents a comparative account of psychophysiological responses to music listening in healthy males and females. The stimulus material was a slow-paced taped rāga Desi-Todi on a flute. The participants listened to music for 30 minutes a day, for 20 days. Pre- and post-treatment procedure was adopted for assessments on psychophysiological measures. The study supports the following conclusions: (1) music listening produced significant decreases in the blood pressure (both systolic and diastolic) and heart rate of females, but had no significant effect in males; (2) music listening reduced stress, anxiety and depression, enhanced life satisfaction, optimism and hope, and was perceived as making life more meaningful in males and females; (3) the effects of music listening, that is, reduction in negative affect, enhancement of positive affect (except the ‘hope’ scores), and decrease in blood pressure and heart rate, were more intense in females than males.Keywords: music listening, gender differences, psychophysiological responses, negative affect, positive affect, blood pressure, heart rateFrenchDifférences en fonction du sexe des réactions psycho- physiologiques à l’écoute musicaleCette études présente un compte-rendu comparatif des réactions psycho- physiologiques à l’écoute musicale par des hommes et des femmes sains. Le matériel sonore de stimulation était l’enregistement d’un motif lent joué à la flute dans le style Raga (Desi-Todi). Les participants ont écouté cette musique à raison de 30 mn par jour pendant 20 jours. Une procédure a été adoptée pour évaluer les mesures psycho-physiologiques en pré et post-traitement. L’étude soutient les conclusions suivantes : (1) l’écoute musicale a produit une baisse significative de la pression artérielle (diastolique et systolique) et de la fréquence cardiaque chez les femmes, mais n’a pas eu d’effet significatif chez les hommes; (2) l’écoute musicale a réduit le stress, l’anxiété et la dépression, amélioré le sentiment de satisfaction, d’optimisme et d’espérance, et a été perçue comme rendant la vie plus riche de sens chez l’homme et la femme; (3) les effets de l’écoute musicale, c’est-à-dire la réduction des effects négatifs, l’amélioration des effets positifs (à l’exception des résultats concernant l’espérance), et la diminution de la pression sanguine et de la fréquence cardiaque étaient plus intenses chez les femmes que chez les hommes.Mots clés :écoute musicale, différence sexuelle, réactions psycho-physiologiques, effet négatif, effet positif, pression artérielle, fréquence cardiaque

Self Management of Rest Breaks by VDT Users

1994 ◽  
Vol 38 (12) ◽  
pp. 754-758 ◽  
Author(s):  
Robert A. Henning ◽  
Anna M. Ortega ◽  
Eric A. Callaghan ◽  
George V. Kissel
Keyword(s):  
Heart Rate ◽  
Performance Feedback ◽  
Well Being ◽  
Self Management ◽  
Video Display ◽  
Musculoskeletal Discomfort ◽  
Correction Rate ◽  
Rest Break ◽  
Before And After ◽  
Rest Breaks

Video display terminal (VDT) users can benefit from frequent, short rest breaks in terms of improved productivity and well-being. However, VDT users report that scheduled breaks can seriously disrupt some tasks. This laboratory study tested if performance feedback would promote better self management of discretionary rest breaks. Undergraduate typists (N=31) entered lines of randomized words for 65 min. A mandatory rest break was administered whenever discretionary rest breaks did not total 30 s every 10 min. Typists in the experimental condition received feedback indicating how their discretionary breaks compared to a criterion. Typists in the control condition received no such feedback. Mood and musculoskeletal discomfort were assessed before and after the work period, followed by a questionnaire about the break system. Performance measures included keystroke rate, error rate, and correction rate (backspace use). Measures of heart rate and heart rate variability were also collected. Both the number of full-length mandatory breaks and correction rate were lower in the feedback condition. No significant differences in mood, musculoskeletal discomfort, physiological response, nor acceptance of the break system were found. These results suggest that self management of discretionary breaks as well as keystroke performance are improved by feedback, with no untoward effects on well-being.

scholarly journals Assessment of changes in physiological parameters and immune marker levels in cattle presented for slaughter at Ikpa Nsukka slaughter abattoir

2021 ◽  
Vol 48 (3) ◽  
pp. 204-209
Author(s):  
K. C. Ogbanya ◽  
C. A. Eze ◽  
N. H. Okereke ◽  
C. K. Chukwu
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Rectal Temperature ◽  
Leucocyte Count ◽  
Physiological Parameters ◽  
Mean Values ◽  
Fréquence Cardiaque ◽  
Neutrophil Lymphocyte Ratio ◽  
Immune Marker ◽  
Female Cattle

There is dearth of information on the use of physiological parameters and immune marker levels as indices of stress in cattle presented for slaughter. The objectives of the study were to determine the changes in physiological parameters such as heart rate, pulse rate, respiratory rate, rectal temperature and to assess the changes in immune marker levels like total leucocyte count, differential leucocyte count and neutrophil/lymphocyte ratio as indices of stress in cattle presented for slaughter at Ikpa slaughter slab. The heart and pulse rates were determined using stethoscope and first and second fingertips count respectively. The rectal temperature (oC) was determined using digital thermometer while the respiratory rate (breaths/minutes) was determined by counting the number of breaths per minute. Blood was collected from 40 cattle at two stages: 1) pre-slaughter and 2) during slaughter. The pre- slaughter and post-slaughter mean values of heart rates in the male cattle were 80.00±7.48a and 112.50±2.87b respectively. The pre-slaughter and post-slaughter mean values of heart rates in the female cattle were 51.33±1.76a and 64.00±2.31a respectively. The pre-slaughter and post-slaughter mean values of respiratory rates in the male cattle were 79.00±6.61a and 33.00±2.52a and 47.00±1.00b respectively. The pre-slaughter and post-slaughter mean values of respiratory rates in the female cattle were 30.67±1.33a and 41.33±3.53b respectively. The pre-slaughter and post-slaughter mean values of rectal temperature in the male cattle were 37.55±0.09a and 38.48±0.13b and 47.00±1.00b respectively. The pre-slaughter and post- slaughter mean values of rectal temperature in the female cattle were 38.63±0.18a and 38.60±0.06a respectively. A slight non-significant increase in the neutrophil/lymphocyte ratio in the different sex groups at pre-slaughter and slaughter were observed. In conclusion, changes in heart rate, pulse rate and respiratory rate are more indicative of acute stress which is associated with slaughter processes in Ikpa abattoir.     Il n y a guerre d'information sur l'utilisation des paramètres physiologiques et des niveaux de marqueur immunitaire comme indices de stress chez les bovins présentés pour l'abattage. Les objectifs de l'étude étaient de déterminer les changements dans les paramètres physiologiques tels que la fréquence cardiaque, le pouls, la fréquence respiratoire, la température rectale et d'évaluer les changements dans les niveaux de marqueur immunitaire comme le nombre total de leucocytes, le nombre différentiel de leucocytes et le rapport neutrophile/lymphocyte comme indices de stress chez les bovins présentés pour l'abattage à la dalle d'abattage Ikpa. Les fréquences cardiaques ont été déterminées à l'aide du   Assessment of changes in physiological parameters and immune marker levels in cattle         stéthoscope et le premier et le deuxième doigts comptent respectivement. La température rectale (le 'OC') a été déterminée à l'aide d'un thermomètre numérique, tandis que la fréquence respiratoire (respirations/minutes) a été déterminée en comptant le nombre d'respirations par minute. Le sang a été prélevé sur 40 bovins à deux étapes : 1) avant l'abattage et 2) pendant l'abattage. Les valeurs moyennes des fréquences cardiaques chez les bovins mâles avant l'abattage et après l'abattage étaient respectivement de 80.00 ±7.48a et 112.50±2.87 milliards. Les valeurs moyennes des fréquences cardiaques chez les bovins femelles avant l'abattage et après l'abattage étaient respectivement de 51.33 ±1.76a et 64.00±2.31a. Les valeurs moyennes des taux respiratoires chez les bovins mâles avant l'abattage et après l'abattage étaient respectivement de 79.00±6.61a et 33.00±2.52a et 47.00±1.00b. Les valeurs moyennes des taux respiratoires chez les bovins femelles avant l'abattage et après l'abattage étaient de 30.67 ±1.33a et 41.33±3.53 milliards respectivement. Les valeurs moyennes de température rectale avant l'abattage et après l'abattage chez les bovins mâles étaient respectivement de 37.55±0.09a et 38.48±0.13b et 47.00±1.00b. Les valeurs moyennes de la température rectale avant l'abattage et après l'abattage chez les bovins femelles étaient respectivement de 38.63±0.18a et 38.60±0.06a. Une légère augmentation non significative du rapport neutrophile/lymphocyte dans les différents groupes sexuels au pré-abattage et à l'abattage a été observée. En conclusion, les changements de la fréquence cardiaque, de la fréquence cardiaque et de la fréquence respiratoire sont plus révélateurs du stress aigu associé aux processus d'abattage à l'abattoir Ikpa.

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