scholarly journals Physiological Responses and Mechanical Efficiency during Different Types of Ergometric Exercise

2000 ◽  
Vol 12 (1) ◽  
pp. 67-73 ◽  
Author(s):  
Taizo Shiomi ◽  
Maruyama ◽  
Akihiko Saito ◽  
Mamoru Umemura
Keyword(s):  
Physiological Responses ◽  
Mechanical Efficiency ◽  
Different Types ◽  
Ergometric Exercise

scholarly journals Link between Lipid Second Messengers and Osmotic Stress in Plants

2021 ◽  
Vol 22 (5) ◽  
pp. 2658
Author(s):  
Beatriz A. Rodas-Junco ◽  
Graciela E. Racagni-Di-Palma ◽  
Michel Canul-Chan ◽  
Javier Usorach ◽  
S. M. Teresa Hernández-Sotomayor
Keyword(s):  
Osmotic Stress ◽  
Protein Conformation ◽  
Membrane Lipids ◽  
Second Messengers ◽  
Physiological Responses ◽  
Plant Cells ◽  
Transient Molecules ◽  
Molecular Approaches ◽  
Extracellular Signal ◽  
Different Types

Plants are subject to different types of stress, which consequently affect their growth and development. They have developed mechanisms for recognizing and processing an extracellular signal. Second messengers are transient molecules that modulate the physiological responses in plant cells under stress conditions. In this sense, it has been shown in various plant models that membrane lipids are substrates for the generation of second lipid messengers such as phosphoinositide, phosphatidic acid, sphingolipids, and lysophospholipids. In recent years, research on lipid second messengers has been moving toward using genetic and molecular approaches to reveal the molecular setting in which these molecules act in response to osmotic stress. In this sense, these studies have established that second messengers can transiently recruit target proteins to the membrane and, therefore, affect protein conformation, activity, and gene expression. This review summarizes recent advances in responses related to the link between lipid second messengers and osmotic stress in plant cells.

scholarly journals PROGNOSTIC FACTORS IN SEVERE HEAD INJURY "A CLINICO RADIOLOGICAL STUDY"

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Dr. I. D. Chaurasia ◽  
Dr. Avais Ahmed Khan ◽  
Dr. Neeraj Mane ◽  
Dr. Prateek Malpani ◽  
Dr. M. C. Songara
Keyword(s):  
Heart Rate ◽  
Stress Responses ◽  
Severe Head Injury ◽  
Physiological Responses ◽  
Vital Signs ◽  
Behavioral Responses ◽  
Auditory Stimulation ◽  
Energy Demands ◽  
Significant Difference ◽  
Different Types

Overview:  Infants experience stressors. Stress responses in infants include physiological responses (HR and oxygen saturation) and behavioral responses (behavioral state, motor activity, and signs of behavioral distress). Modulation of the stress response in infants may reduce energy demands and enhance recovery. The characteristics of auditory stimulation provided by music differ from those of other types of auditory stimulation. The infants respond differently to music than to other random noises. This study was carried out to examine the effects of different types of music on vital signs of infants. Methodology: Thirty infants were included in the study. They were divided into two groups. Low and High pitched music was used with for two individual groups. The immediate effect was assessed through pre and post recordings for Heart rate, Reapiratory rate and O2 saturation level. Results: There was statistically significant change in Heart Rate, Respiratory Rate and O2 saturation individually. While comparing post data, except Heart Rate there was no significant difference found with both types of music. Conclusion: Low pitched music has better immediate effect than high pitched music Key words: High pitched music, Low pitched music, Infants

Psychophysiological Stress Indicators In College Athletes: Comparison Of Physiological Responses With Different Types Of Stressors

2019 ◽  
Vol 51 (Supplement) ◽  
pp. 734-735
Author(s):  
Sara Ramirez-Hernandez ◽  
Victor Hugo Montejo-Lambaren ◽  
Alejandro Gaytan-Gonzalez ◽  
Juan R. Lopez-Taylor
Keyword(s):  
College Athletes ◽  
Physiological Responses ◽  
Stress Indicators ◽  
Psychophysiological Stress ◽  
Different Types

scholarly journals The Relationship between Different Types of Alarm Sounds and Children’s Perceived Risk Based on Their Physiological Responses

2019 ◽  
Vol 16 (24) ◽  
pp. 5091
Author(s):  
Jiaxu Zhou ◽  
Xiaohu Jia ◽  
Guoqiang Xu ◽  
Junhan Jia ◽  
Rihan Hai ◽  
...  
Keyword(s):  
Skin Conductance ◽  
Perceived Risk ◽  
Electrodermal Activity ◽  
Physiological Responses ◽  
Skin Conductance Level ◽  
Kindergarten Children ◽  
Physiological Data ◽  
Adult Males ◽  
Different Types ◽  
Alarm Sounds

Due to differences in cognitive ability and physiological development, the evacuation characteristics of children are different from those of adults. This study proposes a novel method of using wearable sensors to collect data (e.g., electrodermal activity, EDA; heart rate variability, HRV) on children’s physiological responses, and to continuously and quantitatively evaluate the effects of different types of alarm sounds during the evacuation of children. In order to determine the optimum alarm for children, an on-site experiment was conducted in a kindergarten to collect physiological data for responses to different types of alarm sounds during the evacuation of 42 children of different ages. The results showed that: (1) The alarm sounds led to changes in physiological indicators of children aged 3–6 years, and the effects of different types of alarm sounds on EDA and HRV activities were significantly different (p < 0.05). Skin conductance (SC), skin conductance tonic (SCT) and skin conductance level (SCL) can be used as the main indicators for analysing EDA of children in this experiment (p < 0.05), and the indicators of ultralow frequency (ULF) and very low frequency (VLF) for HRV were not affected by the type of alarm sounds (p > 0.05). (2) Unlike adults, kindergarten children were more susceptible to the warning siren. The combined voice and warning alarm had optimal effects in stimulating children to perceive risk. (3) For children aged 3–6 years, gender had a significant impact on children’s reception to evacuation sound signals (p < 0.05): Girls are more sensitive than boys in receiving evacuation sound signals, similar to findings of studies of risk perception of adult males and females. In addition, the higher the age, the greater the sensitivity to evacuation sound signals, which accords with results of previous studies on the evacuation dynamics of children.

Self-Reported Psychological States and Physiological Responses to Different Types of Motivational General Imagery

2007 ◽  
Vol 29 (5) ◽  
pp. 629-644 ◽  
Author(s):  
Jennifer Cumming ◽  
Tom Olphin ◽  
Michelle Law
Keyword(s):  
Heart Rate ◽  
State Anxiety ◽  
Physiological Responses ◽  
Heart Rate Monitor ◽  
Psychological States ◽  
Self Confidence ◽  
Competitive Athletes ◽  
Different Types ◽  
Imagery Scripts ◽  
And Coping

The aim of the present study was to examine self-reported psychological states and physiological responses (heart rate) experienced during different motivational general imagery scenarios. Forty competitive athletes wore a standard heart rate monitor and imaged five scripts (mastery, coping, anxiety, psyching up, and relaxation). Following each script, they reported their state anxiety and self-confidence. A significant increase in heart rate from baseline to imagery was found for the anxiety, psyching-up, and coping imagery scripts. Furthermore, the intensity of cognitive and somatic anxiety was greater and perceived as being more debilitative following the anxiety imagery script. The findings support Lang’s (1977, 1979) proposal that images containing response propositions will produce a physiological response (i.e., increase heart rate). Moreover, coping imagery enabled the athletes to simultaneously experience elevated levels of anxiety intensity and thoughts and feelings they perceived as helpful.

Comparison of behavioral and physiological responses of dogs wearing two different types of collars

1998 ◽  
Vol 61 (2) ◽  
pp. 133-142 ◽  
Author(s):  
Philip Ogburn ◽  
Stephanie Crouse ◽  
Frank Martin ◽  
Katherine Houpt
Keyword(s):  
Physiological Responses ◽  
Different Types

Blood flow and oxygen uptake increase with total power during five different knee-extension contraction rates

2002 ◽  
Vol 93 (5) ◽  
pp. 1676-1684 ◽  
Author(s):  
Gisela Sjøgaard ◽  
Ernst A. Hansen ◽  
Takuya Osada
Keyword(s):  
Blood Flow ◽  
Oxygen Uptake ◽  
Physiological Responses ◽  
Kinematic Model ◽  
Mechanical Efficiency ◽  
Knee Extension ◽  
Total Power ◽  
The Novel ◽  
Contraction Rate ◽  
External Power

Controversies exist regarding quantification of internal power (IP) generated by the muscles to overcome energy changes of moving body segments when external power (EP) is performed. The aim was to 1) use a kinematic model for estimation of IP during knee extension, 2) validate the model by independent calculation of IP from metabolic variables (IPmet), and 3) analyze the relationship between total power (TP = EP + IP) and physiological responses. IP increased in a curvilinear manner (5, 7, 13, 21, and 34 W) with contraction rate (45, 60, 75, 90, and 105 contrations/min), but it was independent of EP. Correspondingly, IPmet was 5, 7, 10, 19, and 28 W, supporting the kinematic model. Heart rate, pulmonary oxygen uptake, and leg blood flow plotted vs. TP fell on the same line independent of contraction rate, and muscular mechanical efficiency as well as delta efficiency remained remarkably constant across contraction rates. It is concluded that the novel metabolic validation of the kinematic model supports the model assumptions, and physiological responses proved to be closely related to TP, supporting the legitimacy of IP estimates.

scholarly journals EEG-based quantitative analysis of aesthetic emotion in clothing design

2019 ◽  
Vol 10 (1) ◽  
pp. 44-49 ◽  
Author(s):  
Jingjing Wang
Keyword(s):  
Quantitative Analysis ◽  
Physiological Responses ◽  
Physiological Indicators ◽  
Clothing Design ◽  
Different Types ◽  
Quantitative Analysis Method ◽  
Aesthetic Field ◽  
The Aesthetic ◽  
Electrical Activities ◽  
The Brain

Abstract This paper combines the perceptual aesthetic sentiments with the objective physiological responses of the human brain. By analysing the characteristics of the brain electrical activities in processing of different types of sentiments, this paper uses the specific physiological indicators of the brain to quantify the aesthetic sentiments about clothing. The purpose is to introduce the EEG quantitative analysis method for sentiment perception into the aesthetic field of clothing, and establish a theory of quantifying aesthetic sentiments towards clothing design through the brain electrical physiological responses.

scholarly journals Swimming Stroke Mechanical Efficiency and Physiological Responses of 100-m Backstroke with and without the use of paddles

2014 ◽  
Vol 40 (1) ◽  
pp. 171-180 ◽  
Author(s):  
Spilios Messinis ◽  
Nikos Beidaris ◽  
Spyros Messinis ◽  
Helen Soultanakis ◽  
Petros Botonis ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Physiological Responses ◽  
National Level ◽  
Lactate Concentration ◽  
Mechanical Efficiency ◽  
Rating Of Perceived Exertion ◽  
Specific Power ◽  
Maximum Speed ◽  
Stroke Length ◽  
Swimming Efficiency

Abstract The use of swimming aids during training contributes to greater swimming efficiency by the improvement of the swimming specific power of the athlete. The purpose of this study was to compare the swimming stroke technical characteristics and the physiological responses of swimming 100-m backstroke, with and without the use of paddles at maximum and sub-maximum intensities at the same swimming speed. Eight swimmers competing at the national level participated in this study. The measurements took place at 4 different sessions. At every session, each participant swam individually one 100-m backstroke swimming trial with or without paddles at the same speed and two levels of intensity (100% and 85% of maximum speed). The results revealed lower stroke length, greater stroke number and gliding length without the use of swimming paddles at both intensities. Βlood lactate concentration (10.03±2.96 vs. 5.85±2.23 mmol/l) and Rating of Perceived Exertion (17.43±2.07 vs. 12±2.82) were greater without the use of swimming paddles only at 100% of maximum speed. Thus, swimming backstroke with paddles compared to unaided swimming, at a similar speed, showed a greater efficiency at maximal but not at sub-maximal intensity.

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