PMID- 20508445
OWN - NLM
STAT- MEDLINE
DCOM- 20100914
LR  - 20191210
IS  - 1533-4287 (Electronic)
IS  - 1064-8011 (Linking)
VI  - 24
IP  - 6
DP  - 2010 Jun
TI  - Evaluation of ultrasound velocity to assess the hydration status of wrestlers.
PG  - 1451-7
LID - 10.1519/JSC.0b013e3181d82d26 [doi]
AB  - The objective of this study was to evaluate the utility of ultrasound velocity 
      (UV) to detect changes in the hydration status of wrestlers after undergoing 
      acute dehydration and a 2-hour rehydration period. Forty-seven NCAA wrestlers 
      (mean+/-SEM); age 19.1+/-0.2 years, height 1.73+/-0.1 m, body mass (BM) 
      79.4+/-2.4 kg were tested in euhydrated, dehydrated, and a 2-hours rehydrated 
      conditions. Hydration status was quantified by measuring changes in plasma 
      osmolarity (Posm), urine osmolarity (Uosm), urine specific gravity (Usg), and BM. 
      Ultrasound velocity was measured at 1 MHz using 1.5-microsecond duration tone 
      burst in the soleus muscle. Significant changes (p<0.001) in UV during periods of 
      dehydration (BM change=-3.6+/-0.14%) (UV=+2.18 m.s) and rehydration (BM 
      change=+2.8+/-0.12%) (UV=-2.89 m.s) were found. Significant main effects 
      (p<0.001) were also found for Usg, Uosm, and Posm during dehydration. The change 
      in Posm from the 1 to 2-hour rehydration time period significantly correlated to 
      the change in UV during the same time period (r=0.27, p<0.001). This study 
      demonstrates that changes in UV correspond to the changes of Posm, Usg, Uosm, and 
      BM during acute dehydration and rehydration in collegiate wrestlers. The use of 
      ultrasound measures may have potential application as an alternative field-based 
      method to assess the hydration status of collegiate wrestlers although future 
      research is warranted.
FAU - Utter, Alan C
AU  - Utter AC
AD  - Department of Health, Leisure, and Exercise Science, Appalachian State 
      University, Boone, North Carolina, USA. utterac@appstate.edu
FAU - McAnulty, Steven R
AU  - McAnulty SR
FAU - Sarvazyan, Armen
AU  - Sarvazyan A
FAU - Query, Michael C
AU  - Query MC
FAU - Landram, Michael J
AU  - Landram MJ
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Strength Cond Res
JT  - Journal of strength and conditioning research
JID - 9415084
SB  - IM
MH  - Adolescent
MH  - *Athletes
MH  - Body Composition
MH  - Body Water/*diagnostic imaging
MH  - Humans
MH  - Male
MH  - Muscle, Skeletal
MH  - Ultrasonography
MH  - Wrestling/*physiology
MH  - Young Adult
EDAT- 2010/05/29 06:00
MHDA- 2010/09/15 06:00
CRDT- 2010/05/29 06:00
PHST- 2010/05/29 06:00 [entrez]
PHST- 2010/05/29 06:00 [pubmed]
PHST- 2010/09/15 06:00 [medline]
AID - 00124278-201006000-00003 [pii]
AID - 10.1519/JSC.0b013e3181d82d26 [doi]
PST - ppublish
SO  - J Strength Cond Res. 2010 Jun;24(6):1451-7. doi: 10.1519/JSC.0b013e3181d82d26.