Global ETD Search

1	Psykofysiologisk utvärdering av strategiträning och stresshantering inom golfputtning Frid, Sebastian January 2015 (has links) I föreliggande uppsats var syftet att i en mixad design med kontroll- och behandlingsgrupp, undersöka om psykofysiologisk strategiträning kan hjälpa individer att hantera stress samt förbättra sin prestationsförmåga i pressade situationer inom golfputtning. Strategiträningen innefattade en kombination av andning-, rörelse och kognitivt beteende. Resultatparametrar var a) fingertemperatur som indikerar förändringar i det sympatiska nervsystemet och b) ett protokoll som mätte prestationsdata. Data har analyserats med hjälp av ANOVA ”repeated measures” i SPSS.Huvudresultatet visar signifikant fingertemperaturskillnad mellan behandlings- och kontrollgruppen. Slutsatsen i denna studie är att denna intränade strategi sannolikt kan användas för att reducera risken att bli stressad i en pressad situation och därmed öka prestationseffektiviteten. / In the present study the aim was to investigate, in a mixed treatment- and control design, effects of a behavioral strategy on coping with stress in stressful situations and particularly golf putting. The behavioral strategy contented integrated breathing-, movement and cognitive behaviors. The outcome parameters were a) finger temperature indicating changes in the lymphatic nervous system and b) a protocol measuring performance results. Data was analyzed with help of ANOVA”repeated measures” in a SPSS-program. The main results showed significant differences in finger temperature between the treatment and the control groups. The conclusion was that training of the strategy used in this study probably can be used to increase efficacy in golf putting. Psychophysiology golf putting finger temperature strategy training Psykofysiologi golfputtning fingertemperatur strategiträning
2	Exercising - Breathing - Performing : Ilse Middendorf's breathing exercises in context of stage fright Gaube, Annika January 2021 (has links) This master project addresses the problem of stage fright in a musical performance context. To meet my personal, uncomfortable feelings of stage fright, I decided to “prepare” my body for such situations by doing breathing exercises developed by Ilse Middendorf (The Perceptible Breath). With help and support of the Berliner Centrum für Musikermedizin at the Charité the project became a pilot study about how Ilse Middendorf's breathing exercises could minimize bodily stress of a non-wind instrument player in a stress situation. Following method was applied. I did breathing exercises over a period of six weeks. I made three recordings of the same cello piece that I know well (Josef Haydn’s Cello Concerto in D-major, 1. movement, exposition): before the six-week period, in the middle of it and at the end. The recordings represent the stress situations. The impact of breathing exercises on my cello practice and recordings were evaluated in three ways. I documented my subjective perceptions of my personal development with a questionnaire and a report. The objective results were then documented in two ways. The three recordings were sent out to professional audience members who did not know in which order recordings were done. They listened and rated them in order of their quality. Finally, I measured a series of body parameters which indicate the level of stage fright (e.g. heart rate, finger temperature, blood pressure) before and after the recordings. The results of my project are quite encouraging. On the subjective level, I felt less stress, more musicality and a new body awareness. The recordings were rated by audience members in exactly the order in which I recorded them which indicates a musical quality improvement. The body measurements showed that breathing exercises lead to a decrease in bodily stress symptoms (blood pressure and heart rate). Stage fright performance anxiety stress breathing Ilse Middendorf cello blood pressure finger temperature Music Musik
3	Cold exposure and thermal comfort among patients in prehospital emergency care : innovation research in nursing Aléx, Jonas January 2015 (has links) Background Patients’ cold exposure is a neglected problem in prehospital emergency care. Cold stress increases pain and anxiety and contributes to fear and an overall sense of dissatisfaction. When left untreated, cold stress disturbs vital body functions until ultimately reaches hypothermia. Aim The overall aim was to investigate patients’ experiences of thermal comfort and reactions to cold exposure in prehospital emergency care and to evaluate the effects of an intervention using active warming from underneath. Method Study I: Persons (n=20) injured in a cold environment in the north of Sweden were interviewed. Active heat was given to 13 of them. Study II: In wintertime, 62 patients were observed during prehospital emergency care. The field study was based on observations, questions about thermal discomfort, vital signs, and temperature measurements. Study III: Healthy young persons (n=23) participated in two trials each. Data were collected inside and outside a cold chamber. In one trial, the participants were lying on a regular ambulance stretcher and in a second trial on a stretcher supplied with a heated mattress. Outcomes were the Cold Discomfort Scale (CDS), back, finger, and core body temperature, four statements from the State-TraitAnxiety-Inventory (STAI), vital signs, and short notes about their experiences of the two stretchers. Study IV: A quantitative intervention study was conducted in prehospital emergency care in the north of Sweden. The patients (n=30) in the intervention group were transported in an ambulance supplemented with a heated mattress on the stretcher, whereas only a regular stretcher was used in the ambulance for the patients (n=30) in the control group. Outcomes were the CDS, finger, core body, and air temperature, and questions about cold experiences. Results Study I: Patients suffered more because of the cold than from the pain of their injuries. The patients were in a desperate need of heat. Study II: Patients are exposed to cold stress due to cold environments. There was a significant decrease from the first measurement in finger temperature of patients who were indoors when the ambulance arrived, compared to the measurement taken in the ambulance. In the patient compartment of the ambulance, 85% of the patients had a finger temperature below the comfort zone and almost half of them experienced the patient compartment in the ambulance to be cold. The regular mattress surface temperature at the ambulance ranged from -22.3 to 8.4 ºC. Study III: A statistical increase of the participants’ back temperature was found between those lying on the heated mattress compared to those lying on the regular mattress. The heated mattress was experienced as warm, comfortable, providing security, and easy to relax on. Study IV: Thermal comfort increased for the patients in the intervention group and decreased in the control group. A significant higher proportion of the participants rated the stretcher as cold to lie on in the control group compared to the intervention group. Conclusion The ambulance milieu is too cold to provide thermal comfort. Heat supply from underneath increased comfort and might prevent cold stress and hypothermia thermal comfort thermal discomfort cold exposure cold stress hypothermia patients’ experiences active warming prehospital emergency care finger temperature back temperature
4	Enhanching the Human-Team Awareness of a Robot Wåhlin, Peter January 2012 (has links) The use of autonomous robots in our society is increasing every day and a robot is no longer seen as a tool but as a team member. The robots are now working side by side with us and provide assistance during dangerous operations where humans otherwise are at risk. This development has in turn increased the need of robots with more human-awareness. Therefore, this master thesis aims at contributing to the enhancement of human-aware robotics. Specifically, we are investigating the possibilities of equipping autonomous robots with the capability of assessing and detecting activities in human teams. This capability could, for instance, be used in the robot's reasoning and planning components to create better plans that ultimately would result in improved human-robot teamwork performance. we propose to improve existing teamwork activity recognizers by adding intangible features, such as stress, motivation and focus, originating from human behavior models. Hidden markov models have earlier been proven very efficient for activity recognition and have therefore been utilized in this work as a method for classification of behaviors. In order for a robot to provide effective assistance to a human team it must not only consider spatio-temporal parameters for team members but also the psychological.To assess psychological parameters this master thesis suggests to use the body signals of team members. Body signals such as heart rate and skin conductance. Combined with the body signals we investigate the possibility of using System Dynamics models to interpret the current psychological states of the human team members, thus enhancing the human-awareness of a robot. / Användningen av autonoma robotar i vårt samhälle ökar varje dag och en robot ses inte längre som ett verktyg utan som en gruppmedlem. Robotarna arbetar nu sida vid sida med oss och ger oss stöd under farliga arbeten där människor annars är utsatta för risker. Denna utveckling har i sin tur ökat behovet av robotar med mer människo-medvetenhet. Därför är målet med detta examensarbete att bidra till en stärkt människo-medvetenhet hos robotar. Specifikt undersöker vi möjligheterna att utrusta autonoma robotar med förmågan att bedöma och upptäcka olika beteenden hos mänskliga lag. Denna förmåga skulle till exempel kunna användas i robotens resonemang och planering för att ta beslut och i sin tur förbättra samarbetet mellan människa och robot. Vi föreslår att förbättra befintliga aktivitetsidentifierare genom att tillföra förmågan att tolka immateriella beteenden hos människan, såsom stress, motivation och fokus. Att kunna urskilja lagaktiviteter inom ett mänskligt lag är grundläggande för en robot som ska vara till stöd för laget. Dolda markovmodeller har tidigare visat sig vara mycket effektiva för just aktivitetsidentifiering och har därför använts i detta arbete. För att en robot ska kunna ha möjlighet att ge ett effektivt stöd till ett mänskligtlag måste den inte bara ta hänsyn till rumsliga parametrar hos lagmedlemmarna utan även de psykologiska. För att tyda psykologiska parametrar hos människor förespråkar denna masteravhandling utnyttjandet av mänskliga kroppssignaler. Signaler så som hjärtfrekvens och hudkonduktans. Kombinerat med kroppenssignalerar påvisar vi möjligheten att använda systemdynamiksmodeller för att tolka immateriella beteenden, vilket i sin tur kan stärka människo-medvetenheten hos en robot. / <p>The thesis work was conducted in Stockholm, Kista at the department of Informatics and Aero System at Swedish Defence Research Agency.</p> robotics Artificial Intelligence AI System Dynamics Wireless Body Area Network WBAN sensors Psychology physiology human behavior Human-Robot-Interaction HRI robot Human-Team awareness human-robot RapidMiner Vensim JaHMM hidden markov models HMM eclipse rcp ARFF recognizer classification cross-validation human behavior stress detection Galvanic Skin Response Heart Rate Skin Temperature Finger Temperature Electrocardiogram ECG GSR ST Pupil Diameter PD Patient monitoring GPS Data acquisition dataset data set MODERE Yerkes-Dodson SD model SD Confusion matrix spatial MOUT Java Agent robotic agent Machine Learning activity recognition team oriented robot Evaluation Decoding Learning Forward Algorithm Backward Algorithm Baum-Welch feedback loop Situation Awareness SA Shared Mental Models SMM

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