Sökning: "maximum oxygen uptake"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden maximum oxygen uptake.

1. 1. Limitations of maximal oxygen uptake during whole-body exercise

   Författare :Thibault Brink-Elfegoun; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Oxygen uptake increases linearly with increased running speed or rate of work and finally reaches a maximum beyond which no effort can drive it further. This phenomenon is referred to as the plateau in oxygen uptake . LÄS MER

3. 2. The influence of abdominal surgery on energy expenditure and working capacity

   Författare :Margareta Öhrström; Människan i rörelse: hälsa och rehabilitering; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicin människa och djur ; Medicine human and vertebrates ; maximum oxygen uptake; chemotherapy; walking; Energy expenditure; treatment outcome;

   Sammanfattning : The overall aim of this work was to study the influence of surgery on energy expenditure (EE) during working capacity measurements and during walking. In the first study the aim was to investigate whether two different devices were sensitive enough to reveal differences in energy expenditure during treadmill walking, and if the measurements were reproducible. LÄS MER

4. 3. Analysis and Control of Continuous Microaerobic Ethanol Production by Yeast

   Författare :Carl Johan Franzén; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nitrogen limitation; ethanol; Saccharomyces cerevisiae; glycerol; metabolic flux analysis; oxygen limitation; stoichiometric model; yeast physiology; RQ control;

   Sammanfattning : Glucose fermentation by Saccharomyces cerevisiae, and xylose fermentation by Candida utilis and Pichia stipitis, were investigated under microaerobic conditions. A dynamic experimental method named oxygen programmed fermentation (OPF), and a method for microaerobic RQ control in continuous culture have been developed. LÄS MER

5. 4. The Fight on the Flights : Emergency evacuations – human physiological performance, leg muscle activity and gait biomechanics during exhaustive stair and slope ascent

   Författare :Amitava Halder; Ergonomi och aerosolteknologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Stair climbing evacuation; Physical work capacity; Physiological constraints; Endurance; Energy expenditure; Oxygen consumption; Electromyography; Muscle fatigue; Incline gait biomechanics; Ground reaction forces; Required coefficient of friction;

   Sammanfattning : Physical exhaustion can constrain stair ascending capacity during emergency evacuation. The overall aim of this research was to explore and compare stair ascending capacities and physiological limitations when using two different modes: 1) self-preferred pace on three different public stairways, and 2) four machine-controlled paces on a stair machine corresponding to different percentages of maximal aerobic capacity (V̇O2max). LÄS MER

7. 5. Evaluation of physical work capacity and leg muscle fatigue during exhaustive stair ascending evacuation

   Författare :Amitava Halder; Ergonomi och aerosolteknologi; []
   Nyckelord :Stair climbing; Energy expenditure; Oxygen consumption; Electromyography; Muscle fatigue;

   Sammanfattning : AbstractPhysical exhaustion can constrain human ascending work capacity and performance during emergency evacuation on stairs. The overall aim of this research was to explore and compare stair ascending capacities and physiological limitations during two different strategies: self-preferred pace in three different public stairways in the field, and controlled pace in a laboratory on a stair machine. LÄS MER