Abstract:
:The aim of this study was to evaluate the effect of a daily intake of fluid and salt supplementation (FSS) on the deficiency of electrolytes, which is characterized by higher rather than lower plasma concentration of electrolytes during prolonged hypokinesia (HK) (decreased number of km taken per day). Forty long distance runners aged 22-25 yr with a peak VO2 65.4 mL min(-1) kg(-1) with an average 14.2 km d running distance were selected as subjects. They were equally divided into four groups: 1) unsupplemented control subjects (UCS); 2) unsupplemented hypokinetic subjects (UHS); 3) supplemented hypokinetic subjects (SHS), and 4) supplemented control subjects (SCS). During the investigation of 364 d, groups 2 and 3 maintained an average running distance of less than 4.7 km per day, groups 1 and 4 did not experience any modification in their normal training routines and diets. During the preexperimental period of 60 d and during the experimental period of 364 d urinary excretion of electrolytes and concentrations of sodium, potassium, calcium, and magnesium in plasma were determined. Whole blood hemoglobin, hematocrit index, plasma osmolality, and plasma protein concentration were measured. In the UHS plasma concentration of electrolytes and urinary excretion thereof, fluid elimination, hematocrit, whole blood hemoglobin, plasma osmolality, and plasma protein concentration increased significantly (p < 0.05) when compared with the UCS, SCS, and SHS groups. In the SHS plasma concentration of electrolytes and urinary excretion thereof, fluid excretion, whole blood hemoglobin, hematocrit, plasma osmolality, and plasma protein concentration decreased when compared with the UHS and increased insignificantly when compared with the UCS and SCS groups. It was concluded that FSS may be used to prevent or minimize electrolyte deficiency in endurance-trained volunteers during prolonged restriction of muscular activity.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Zorbas YG,Yaroshenko YY,Kuznetsov NK,Matvedev SLdoi
10.1007/BF02783342subject
Has Abstractpub_date
1998-07-01 00:00:00pages
259-73issue
1-3eissn
0163-4984issn
1559-0720journal_volume
64pub_type
杂志文章abstract::Selenium concentrations in the blood of 112 (56 females and 56 males) normal subjects, from different regions of the Punjab (Pakistan), have been determined using the technique of inductively coupled plasma-mass spectrometry. The whole blood selenium concentrations were found to be 452 ± 12 ppb (parts per billion or n...
journal_title:Biological trace element research
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journal_title:Biological trace element research
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journal_title:Biological trace element research
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journal_title:Biological trace element research
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journal_title:Biological trace element research
pub_type: 杂志文章
doi:10.1007/BF02783332
更新日期:1998-07-01 00:00:00
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journal_title:Biological trace element research
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pub_type: 临床试验,杂志文章
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