Search for dissertations about: "ratings of perceived exertion"
Showing result 1 - 5 of 7 swedish dissertations containing the words ratings of perceived exertion.
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1. Roller skis' rolling resistance and grip characteristics : influences on physiological and performance measures in cross-country skiers
Abstract : The aim of this thesis was to investigate roller ski characteristics; classical and freestyle roller skis’ rolling resistance coefficients (μR) and classical style roller skis’ static friction coefficients (μS), and to study the influence of different μR and μS on cross-country skiers’ performance and both physiological and biomechanical indices. The aim was also to study differences in skiing economy and efficiency between recreational skiers, female and male junior and senior elite cross-country skiers. READ MORE
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2. The rolling resistances of roller skis and their effects on human performance during treadmill roller skiing
Abstract : Modern ski-treadmills allow cross-country skiers, biathletes and ski-orienteers to test their physical performance in a laboratory environment using classical and freestyle techniques on roller skis. For elite athletes the differences in performance between test occasions are quite small, thus emphasising the importance of knowing the roller skis’ rolling resistance coefficient, µR, in order to allow correct comparisons between the results, as well as providing the opportunity to study work economy between different athletes, test occasions and core techniques. READ MORE
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3. Performance and Flotation-REST in Tests of Marksmanship, Problem-solving and Perceived Exertion
Abstract : This present thesis examines whether or not relaxation as floating may be exploited to reinforce primary process (inner-directed) orientation, and thereby enhance performance, creative problem-solving ability and originality. Two Articles are presented both using randomized factorial design. Article I include two subexperiments. READ MORE
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4. Working technique during computer work Associations with biomechanical and psychological strain, neck and upper extremity musculoskeletal symptoms
Abstract : About 35 % of the working population in Sweden report that computer use accounts for 50% or more of their total working hours. Among this population approximately 40% of the women and 25% of the men experienced symptoms in the neck and/or upper extremities at least once a week during the preceding 3 month. READ MORE
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5. Identification and validation of risk factors in cold work
Abstract : There are very few methods available for the assessment of cold exposure and they rely more or less on complex equations for calculating heat balance; therefore, there is a need for new practical methods for the identification and control of cold hazards in workplaces. In the first study, the aim was to test a checklist which enables cold risk assessment based on observations in the workplace. READ MORE