Search for dissertations about: "Breath-hold diving"

Showing result 1 - 5 of 6 swedish dissertations containing the words Breath-hold diving.

  1. 1. The human diving response - effects of temperature and training

    University dissertation from Lund : Grahn

    Author : Erika Schagatay; Mittuniversitetet.; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Biology Organism biology; NATURVETENSKAP Biologi Organismbiologi; INTERDISCIPLINARY RESEARCH AREAS Sports; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN Idrott; MEDICINE Physiology and pharmacology Physiology; MEDICIN Fysiologi och farmakologi Fysiologi; The human diving response - effects of temperature and training.; Djurfysiologi; pig; human; training; breath-holding time; breaking point; cold-receptors; arterial blood; vasoconstriction; bradycardia; diving reflex; diving response; Breath-hold diving; Animal physiology; simulated diving;

    Abstract : The aim was to elucidate the cardiovascular response associated with breath-hold diving, especially the effects of temperature in its elicitation and the effects of different types of training on the human diving response (DR) and breath-holding time (BHT), and to evaluate the human DR in a mammalian perspective. A model for simulated diving by apnea and facial immersion in cold water was developed. READ MORE

  2. 2. Cardiovascular and respiratory effects of apnea in humans

    University dissertation from Animal Physiology

    Author : Johan Andersson; Lunds universitet.; Lund University.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lung volume; breath-hold diving; Apnea; breath-holding; face immersion; cold stimulation; diving response; diving reflex; circulation; bradycardia; vasoconstriction; arterial blood pressure; cardiac output; spleen; respiration; splenic contraction; alveol; Physiology; Fysiologi; Respiratory system; Andningsorganen; Animal physiology; Djurfysiologi;

    Abstract : Popular Abstract in Swedish Dykresponsen Andningsuppehåll (apné) eller fridykning ställer stora krav på att så effektivt som möjligt disponera de förråd med syrgas som finns i kroppen. Känsliga organ såsom hjärnan och hjärtat kan inte klara sig utan syrgas någon längre tid. READ MORE

  3. 3. Initiation of spleen contraction resulting in natural blood boosting in humans

    University dissertation from Östersund : Mid Sweden University

    Author : Angelica Lodin; Mittuniversitetet.; [2015]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Acclimatization; altitude; apnea; breath-hold diving; hemoglobin; hypercapnia; hypoxia; triggers;

    Abstract : The spleen has been shown to contract in apneic situations in humans as well as in other diving mammals, expelling its stored red blood cell content into circulation. This natural blood boosting may increase the circulating hemoglobin concentration (Hb) by up to 10%, which would enhance the oxygen carrying capacity and likely increase performance. READ MORE

  4. 4. Hematological changes arising from spleen contraction during apnea and altitude in humans

    University dissertation from Östersund : Mid Sweden University

    Author : Matt X. Richardson; Mittuniversitetet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hypoxia; hypercapnia; hemoglobin; hematocrit; breath-hold diving; NATURAL SCIENCES Biology Organism biology; NATURVETENSKAP Biologi Organismbiologi; INTERDISCIPLINARY RESEARCH AREAS Sports; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN Idrott; MEDICINE Physiology and pharmacology Physiology; MEDICIN Fysiologi och farmakologi Fysiologi;

    Abstract : .... READ MORE

  5. 5. Severe hypoxemia during apnea in humans : Influence of cardiovascular responses

    University dissertation from Stockholm : Karolinska Institutet, Department of Physiology and Pharmacology

    Author : Peter Lindholm; Karolinska Institutet.; Karolinska Institutet.; [2002]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Diving response; breath holding; bradycardia; vasoconstriction; hypoxia;

    Abstract : When a diving human holds his or her breath, the heart beat slows and the blood vessels constrict in large portions of the body. In diving mammals such as seals, similar responses effectively conserve oxygen for the brain, enabling them to dive very deep and to stay underwater for a long time. READ MORE