The 1st International Head-Out Water Immersion Symposium: Bristol 1989

The 2nd International Head-Out Water Immersion Symposium: Berlin 1992

The 3rd International Head-Out Water Immersion Symposium: Copenhagen 1995

The 4th International

Head-Out Water Immersion Symposium

September 27-28, 1999

Graz, Austria

>> Links to later HOWI meetings

>> Photo gallery: 4th HOWI Symposium

Scientific Committee:

• Karl Kirsch, Berlin, Germany
• Claire Lathers, Rockville, MD, USA
• Peter Norsk, Copenhagen, Denmark
• Paul O'Hare, Rugby, Warwickshire, UK
• Robert Robertson, Pittsburgh, PA, USA
• Helmut Hinghofer-Szalkay, Graz, Austria

Local organization:

• Physiologisches Institut - Karl-Franzens-University Graz, Harrachgasse 21, A-8010 Graz, Austria
• Institute for Adaptive & Spaceflight Physiology, Wormgasse 9, A-8010 Graz, Austria

Congress Secretariat:

• Helmut G. Hinghofer-Szalkay, Melitta Unterlerchner

SCIENTIFIC PROGRAM

Session 1: Autonomic Regulation

Chair: P. Norsk, V. Polyakov

• DeBold A.J. (Ottawa): Roles of natriuretic peptides in blood volume and pressure regulation
• Kramer H.J., Meyer-Lehnert H., Predel H.G., Baecker A. (Bonn / Gifhorn / Koeln): Atrial natriuretic peptide (ANP) release and natriuresis during head-out water immersion (HWI) of healthy subjects are independent of the renal dopaminergic system but are potentiated by nifedipine
• Pump B., Kamo T., Gabrielsen A., Norsk P. (Copenhagen / Kanagawa): Comparison of effects of posture change and water immersion on cardiovascular reflexes in humans
• Krakowski-Roosen H., Schaechinger H., Hildebrandt W. (Koeln / Basel / Heidelberg): Autonomous cardiovascular control in orthostatic stress after short-term immersion
• Loeppky J.A., Riboni K., Maes D., Luther D., Gates L., Roach R., Icenogle M. (Albuquerque / Las Vegas): Comparison of plasma volume changes by Evans blue and endogenous blood/plasma constituents during acute altitude stress

Session 2: Space Flight, Bed Rest and Head-Out Water Immersion: Plasma Volume and Orthostasis

Chair: D. Watenpaugh, Ch. Mukai

• Norsk P., Johansen L.B. (Copenhagen): Hemodilution and renal responses to immersion
• Pantalos G., Hart S., Mathias J., Sharp M.K., Watenpaugh D., Buckey J., Hargens A. (Salt Lake City / Galveston / Dartmouth / Moffett Field / San Diego): A biomechanical perspective on physiological response to head-out water immersion, 6 deg. head-down tilt, and weightlessness
• Mano T. (Nagoya): How the sympathetic nervous system in humans responds to short-term microgravity simulated by head-out water immersion
• Lathers C.M., Charles J.B., Mukai Ch. (Houston / Pomona / Tokyo): Space flight, bed rest and water immersion: plasma volume and orthostasis (pres.: Ch. Mukai)
• McKeever K.H., Sandler H., Keil L.C. (New Brunswick / Moffett Field): Extracardiac sensing mechanisms associated with induced fluid shifts

Session 3: Autonomic regulation 2

Chair: K. Kirsch, G. Pantalos

• Wheelans D.C., Evans P.M.S., O'Callaghan C., O'Hare K., Bennett J., O'Hare J.P. (Coventry): Does suppression of the sympathetic nervous system caused by water immersion affect leptin levels?
• Kirsch K., Thorndike K., Boldt L.H., Koralewski B., Johannes B., Gunga H.-C. (Berlin): Heart rate - respiratory rate variabilities and subjective time perception during head-out water immersion (HOWI)
• Watenpaugh D.E., Pump B.B., Bie P., Norsk P. (Copenhagen): Does gender influence human responses to water immersion?
• Liner M.H., Linnarson D. (Stockholm): Submersion attenuates the urge to breathe during breath holding in humans
• Lindholm P., Sundblad P., Oestlund A., Linnarson D. (Stockholm): Oxygen-conserving effects of apnea versus rebreathing in exercising man

Session 4: Clinical aspects

Chair: P. O'Hare, T. Mano

• Evans P.M.S., Broughton-Pipkin F., Lightman S.L., O'Hare J.P. (Cardiff / Bristol / Warwick / Nottingham): Role of the renin-aldosterone axis in the circadian sodium homeostasis of diabetic patients with autonomic neuropathy
• Gabrielsen A., Sorensen V.B., Pump B., Galatius S., Videbaek R., Bie P., Warberg J., Christensen N.J., Wroblewski H., Kastrup J., Norsk P. (Copenhagen): Blunted peripheral but preserved central cardiovascular and neuroendocrine responsiveness to water immersion in heart failure
• Evans P.M.S., Taylor A., Macdonald I.A., Lightman S.L., O'Hare J.P. (Cardiff / Bristol / Warwick / Bath / Nottingham): Do catecholamines have a role in the impaired sodium homeostasis of IDDM patients?
• Marosi M., Gerstenbrand F., Kozlovskaya I.B. (Innsbruck / Vienna / Moscow): Contribution of space related research to advances in the field of medicine

Round table: Water immersion and head-down tilt tests in the research field of "endocrinology and aging"

Hinghofer-Szalkay H (Graz), J.E. Greenleaf (Moffett Field), Kirsch K (Berlin), Kozlovskaya I (Moscow), Roessler A (Graz)

Session 5: Seminar on perceived exertion during water immersion ergometry

Robertson R.J. (Pittsburgh)

Session 6: Effects of temperature

Chair: D. Watenpaugh, R. Roberston

• Gunga H.-C., Kirsch K.A., Johannes B., Roecker L., Boldt L.-E. (Berlin): The vascular endothelial growth factor (VEGF) during thermoneutral (34.5-35.5.0 deg. C) and warm water immersion (39.0 deg. C)
• Jansky L., Simeckova M., Sramek P., Savlikova J. (Prague): Physiological responses due to immersion to water of different temperatures
• Hope A., Aanderud L., Aakvaag A. (Bergen): Dehydration during sweating in warm (38 deg. C) fresh and seawater head-out immersion (HOI)
• Koska J., Ksinantova L., Zimanova T., Rovensky J., Vigas M., Kvetnansky R. (Bratislava / Piestany): The role of daytime and gender in hormonal response to hyperthermic immersion

Session 7: IMBP Presentations

Chair: B. Pump, I. Kozlovskaya

• Shenkman B.S., Cheglova I.A., Larina I.M., Nemirovskaya I.N., Belozerova I.N., Kozlovskaya I.B. (Moscow): Human muscle atrophy and growth hormone levels after exposure to short-term 'dry' water immersion
• Polyakov V.V., Lacota N.G. (Moscow): The unload suit immersion
• Lacota N.G. (Moscow): The errors of suit immersion as model for microgravity
• Larina I.M. (Moscow): Role of the individual heat and water-salt sensibility under suit immersion
• Kozlovskaya I.B. (Moscow): Immersion as an on-ground simulation model of sensory-motor effects of weightlessness

BOOK OF ABSTRACTS

The Book of Abstracts (30 pp) is available and will be mailed to you upon payment of 10 US-$ (personal check, or bank transfer to our Research Account: IFSSM, #2700-901578, at "Steiermaerkische Bank und Sparkassen AG" - bank code in Austria: 20815

>> 5th International Head-Out Water Immersion Symposium: Houston 2002

>> 6th International Head-Out Water Immersion Symposium: Nagoya 2005

>> 7th International Head-Out Water Immersion Symposium: Tartu 2008