TY - JOUR
T1 - Effects of water ingestion on gastric electrical activity and heart-rate variability in healthy human subjects
AU - Watanabe, Michio
AU - Shimada, Yutaka
AU - Sakai, Shinya
AU - Shibahara, Naotoshi
AU - Matsuda, Harumi
AU - Umeno, Katsumi
AU - Asanoi, Hidetsugu
AU - Terasawa, Katsutoshi
PY - 1996/4/20
Y1 - 1996/4/20
N2 - Electrogastrography (EGG) is a method to record electrical activity of the stomach using cutaneous electrodes. Power ratio (PR) is one of the parameters and means the relative change of EGG power of gastric activity from before to after certain stimulations (e.g., meals, water or drugs). Autonomic nervous function is an important modulator of gastric activity, but its relation with the EGG parameters has not been well clarified. We recorded EGG and the R-R interval simultaneously both before and after drinking 150 ml water for 400 s, and spectrally analyzed them using the maximum entropy method in 12 healthy volunteers. We calculated PR from before to after water ingestion, and the power of the high-frequency component of R-R interval variability before (pre-HF) and after water ingestion (post-HF), and their ratio (rHF = post-HF/pre-HF). PR was positively correlated with rHF (r = 0.727; P < 0.05) and negatively correlated with pre-HF (r = - 0.706; P < 0.05), and rHF was negatively correlated with pre-HF (r = - 0.776; P < 0.05). These results suggest that simultaneous recording of EGG and ECG for frequency domain analysis is necessary to estimate the vagal nervous activity.
AB - Electrogastrography (EGG) is a method to record electrical activity of the stomach using cutaneous electrodes. Power ratio (PR) is one of the parameters and means the relative change of EGG power of gastric activity from before to after certain stimulations (e.g., meals, water or drugs). Autonomic nervous function is an important modulator of gastric activity, but its relation with the EGG parameters has not been well clarified. We recorded EGG and the R-R interval simultaneously both before and after drinking 150 ml water for 400 s, and spectrally analyzed them using the maximum entropy method in 12 healthy volunteers. We calculated PR from before to after water ingestion, and the power of the high-frequency component of R-R interval variability before (pre-HF) and after water ingestion (post-HF), and their ratio (rHF = post-HF/pre-HF). PR was positively correlated with rHF (r = 0.727; P < 0.05) and negatively correlated with pre-HF (r = - 0.706; P < 0.05), and rHF was negatively correlated with pre-HF (r = - 0.776; P < 0.05). These results suggest that simultaneous recording of EGG and ECG for frequency domain analysis is necessary to estimate the vagal nervous activity.
KW - Electrogastrography
KW - Maximum entropy method
KW - R-R interval
KW - Spectral analysis
KW - Vagal nerve activity
UR - http://www.scopus.com/inward/record.url?scp=0029932340&partnerID=8YFLogxK
U2 - 10.1016/0165-1838(95)00110-7
DO - 10.1016/0165-1838(95)00110-7
M3 - 学術論文
C2 - 8740658
AN - SCOPUS:0029932340
SN - 0165-1838
VL - 58
SP - 44
EP - 50
JO - Journal of the Autonomic Nervous System
JF - Journal of the Autonomic Nervous System
IS - 1-2
ER -