Low frequency components of the body's center of gravity and blood circulation.
The purpose of this study was to clarify how low frequency components of the body's center of gravity, mainly 1 minute waves (1-MWs), are related to the mechanism of compensation for the venous blood pooling in the legs during static standing in humans. The 1-MWs of foot pressure center, oscillations of body circumferences and other parameters were analyzed with cross-power spectral analysis. The 1-MW of the calf's blood volume propagated to the chest via the venous system. This was inversely synchronized with the 1-MW of the body's center of gravity. It was speculated that muscular pumping of the calf related to the 1-MW of the body's center of gravity might be compensating for the venous blood pooling in the legs.
Inamura
K
K
Faculty of Liberal Arts, Shizuoka University, Japan.
Mano
T
T
Iwase
S
S
Amagishi
Y
Y
Aoki
K
K
D000328:Adult; D001775:Blood Circulation / Q000502:physiology*; D004576:Electromyography; D006112:Gravitation; D006801:Humans; D008297:Male; D010507:Periodicity; D011187:Posture; D012016:Reference Values