TY - JOUR
T1 - Hydration status does not have a significant effect on soleus motoneuron pool excitability
AU - Krause, Bentley A.
AU - Hoch, Matthew C.
AU - Doeringer, Jeffrey R.
AU - Sheets, Clint R.
PY - 2009
Y1 - 2009
N2 - The purpose of this study was to examine the effect of hydration status on the soleus Hoffmann reflex (H-reflex): muscle response ratio in nine healthy subjects. Soleus H-reflex, urine specific gravity (USG), and body weight (BW) were collected prior to and following a 12-hr fluid restriction protocol and compared to euhydrated measures. Individual repeated measure ANOVAs compared H-reflex, USG, and BW across conditions. A main effect for hydration status was observed between the hypohydration and euhydration condition (p < .01). H-reflex and BW demonstrated no change from baseline across conditions. Although hypohydration creates deficits in muscle function, it does not appear to be the result of decreased central activation.
AB - The purpose of this study was to examine the effect of hydration status on the soleus Hoffmann reflex (H-reflex): muscle response ratio in nine healthy subjects. Soleus H-reflex, urine specific gravity (USG), and body weight (BW) were collected prior to and following a 12-hr fluid restriction protocol and compared to euhydrated measures. Individual repeated measure ANOVAs compared H-reflex, USG, and BW across conditions. A main effect for hydration status was observed between the hypohydration and euhydration condition (p < .01). H-reflex and BW demonstrated no change from baseline across conditions. Although hypohydration creates deficits in muscle function, it does not appear to be the result of decreased central activation.
KW - Central fatigue
KW - Dehydration
KW - H-reflex
KW - H:M ratio
UR - http://www.scopus.com/inward/record.url?scp=70350465135&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70350465135&partnerID=8YFLogxK
U2 - 10.1080/00207450903116422
DO - 10.1080/00207450903116422
M3 - Article
C2 - 19922381
AN - SCOPUS:70350465135
SN - 0020-7454
VL - 119
SP - 1693
EP - 1704
JO - International Journal of Neuroscience
JF - International Journal of Neuroscience
IS - 10
ER -