Effet de l'âge et de la compliance du circuit d'éjection sur les courbes de fonction cardiaque et les pressions systoliques du coeur isolé de rat

Sebban, C.; Wauquier, I; Lerède, Annie; Venet, Richard; Fuente, Xavier de la; Berthaux, P

doi:10.1051/lhb/1978006

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Pw V and Hr1

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1981

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“…Taken to gether several studies in the rat and man sup port this suggestion [12,17,25,26]. The agerelated fall in HR, which becomes apparent only if the action of the autonomic nervous system is blocked [ 12], could be due either to ageing of the myocardium or to the effect of falling arterial compliance [27,28].…”

Section: Pw V and Hrmentioning

confidence: 99%

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Arterial Compliance, Systolic Pressure and Heart Rate in Elderly Women at Rest and on Exercise

Sebban¹,

Berthaux²,

Lenoir³

et al. 1981

Gerontology

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In two groups of elderly women, the relationships between arterial compliance, estimated by pulse wave velocity (PWV), and systolic blood pressure (SP), heart rate (HR), oxygen consumption and the time taken to run 400 m have been studied. Both at rest and with increasing levels of exercise, faster PWVs are associated with higher SPs. There is a tendency for resting HR to be higher with faster PWVs. The changes in HR and oxygen consumption from resting values are strikingly increased with faster PWVs. The time taken over 400 m rises as arterial compliance falls. Therefore, it seems that, with ageing, reduced arterial compliance is a major factor affecting cardiovascular responses to exercise.

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Section: Pw V and Hrmentioning

confidence: 99%

“…An effect of arterial compliance on HR and SP might be mediated through the baro-272 Sebban/Berthaux/Lenoir/Eugene/Vcnet/Memin/dc la Fuente/Reisner receptors and autonomic nervous system [14], or by some mechanical feedback onto the heart [27,28],…”

mentioning

confidence: 99%