PMID- 27373703
OWN - NLM
STAT- MEDLINE
DCOM- 20170330
LR  - 20220330
IS  - 1543-8635 (Electronic)
IS  - 1543-8627 (Linking)
VI  - 24
IP  - 3
DP  - 2016 Jul-Sep
TI  - Hydration assessment among marathoners using urine specific gravity and 
      bioelectrical impedance analysis.
PG  - 234-42
LID - 10.1080/15438627.2016.1202831 [doi]
AB  - The present study examined the relationship between urine specific gravity (Usg), 
      body mass (BM) and bioelectrical impedance determined variables [total body water 
      (TBW), per cent TBW and impedance values] before and after a marathon (n = 25 
      men; 10 women). A significant reduction in BM (pre: 71.2 +/- 12.4 kg; post: 
      69.6 +/- 12.0 kg; p < 0.001) and an increase in Usg (pre: 1.009 +/- 0.007; post: 
      1.018 +/- 0.009; p < 0.001) was observed post-race. TBW was not significantly 
      decreased (pre: 42.7 +/- 8.0 kg; post: 42.4 +/- 7.7 kg) while per cent TBW 
      significantly increased post-race (pre: 60.0 +/- 3.9%; post: 60.8 +/- 3.8%; 
      p < 0.001). Impedance values were significantly greater post-race (pre: 
      3288 +/- 482; post: 3416 +/- 492 Omega; p < 0.001). There was no correlation between the 
      change in Usg and the change in BM or any of the bioelectrical impedance 
      determined variables. On average, BM, Usg and impedance values appear to express 
      changes in hydration; however, the observed changes among these variables for a 
      given individual appear to be inconsistent with one another.
FAU - Cutrufello, Paul T
AU  - Cutrufello PT
AD  - a Exercise Science and Sport , The University of Scranton , Scranton , PA , USA.
FAU - Dixon, Curt B
AU  - Dixon CB
AD  - b Health Sciences Dept , Lock Haven University , Lock Haven , PA , USA.
FAU - Zavorsky, Gerald S
AU  - Zavorsky GS
AD  - c Department of Health and Sports Sciences , University of Louisville , 
      Louisville , KY , USA.
LA  - eng
PT  - Journal Article
DEP - 20160702
PL  - England
TA  - Res Sports Med
JT  - Research in sports medicine (Print)
JID - 101167637
SB  - IM
MH  - Adult
MH  - *Body Water
MH  - *Body Weight
MH  - Dehydration/*diagnosis/urine
MH  - *Electric Impedance
MH  - Female
MH  - Humans
MH  - Male
MH  - Running/*physiology
MH  - Specific Gravity
MH  - Young Adult
OTO - NOTNLM
OT  - Dehydration
OT  - fluid loss
OT  - rehydration
OT  - running
EDAT- 2016/07/05 06:00
MHDA- 2017/03/31 06:00
CRDT- 2016/07/05 06:00
PHST- 2016/07/05 06:00 [entrez]
PHST- 2016/07/05 06:00 [pubmed]
PHST- 2017/03/31 06:00 [medline]
AID - 10.1080/15438627.2016.1202831 [doi]
PST - ppublish
SO  - Res Sports Med. 2016 Jul-Sep;24(3):234-42. doi: 10.1080/15438627.2016.1202831. 
      Epub 2016 Jul 2.