Document Detail


Changes in plasma volume during prolonged restriction of motor activity: effect of chronic hyperhydration.
MedLine Citation:
PMID:  8710406     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Prolonged reduction of number of steps taken per day by healthy subjects (hypokinesia), is associated with a decrease in plasma volume (PV), which may contribute to the development of several so-called hypokinetic disorders seen immediately during exposure to hypokinesia (HK). The purpose of this study was to determine whether a daily intake of fluid and salt supplementation (FSS), would attenuate this loss of PV. Thirty male long distance runners (20-25 years of age) completed this investigation. Ten volunteers placed under a normal ambulatory life (control subjects), ten volunteers were subjected to continuous restriction of motor activity without using FSS (hypokinetic subjects) and ten volunteers were submitted to continuous restriction of motor activity and took daily FSS (hyperhydrated subjects). For the simulation of the hypokinetic effect the hypokinetic and hyperhydrated volunteers were kept under 2.7 km/day (3,000 steps/day). Plasma volume decreased significantly (p < 0.05) in the hypokinetic volunteers during HK, from 3.010 +/- 81 to 2.693 +/- 52 ml. The volunteers who were submitted to combined HK and FSS, had a significant (p < 0.05) increase in PV during HK, from 2.940 +/- 72 to 3.327 +/- 72 ml. There were demonstrable significant differences in PV between the hyperhydrated and hypokinetic groups of volunteers. Thus, prolonged restriction of motor activity appears to have significant effects on the loss of PV, whereas chronic hyperhydration significantly increases PV.
Authors:
Y G Zorbas; Y F Federenko; O B Wiener; E V Iversen
Related Documents :
8115306 - Clinical application of noradrenaline spillover methodology: delineation of regional hu...
17092526 - Effects of breed, gender, exercise and white-coat effect on markers of endothelial func...
24634346 - Combined aerobic/inspiratory muscle training vs. aerobic training in patients with chro...
24554566 - An exploration of the impact of anti-tnfα medication on exercise behaviour in patients ...
17591136 - In vivo validation of the m-covx metabolic monitor in patients under anaesthesia.
18296966 - The effects of combined ballistic and heavy resistance training on maximal lower- and u...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Panminerva medica     Volume:  37     ISSN:  0031-0808     ISO Abbreviation:  Panminerva Med     Publication Date:  1995 Dec 
Date Detail:
Created Date:  1996-09-06     Completed Date:  1996-09-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0421110     Medline TA:  Panminerva Med     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  220-7     Citation Subset:  IM; S    
Affiliation:
European Institute of Environmental Cybernetics, Athens, Greece.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Case-Control Studies
Chronic Disease
Humans
Hypokinesia / physiopathology*
Male
Plasma Volume / physiology*
Water-Electrolyte Imbalance / physiopathology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Selective treatment and targeted chemotherapy: effect on prevalence and intensity of infection for t...
Next Document:  Phytosterols as growth regulators.