Cardiovascular responses to water drinking: does osmolality play a role?

Brown, Clive; Barberini, Luc; Dulloo, Abdul G.; Montani, Jean‐Pierre

doi:10.1152/ajpregu.00205.2005

Cited by 93 publications

(126 citation statements)

References 33 publications

(40 reference statements)

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“…The reduction in plasma volume could be secondary to sympathetic activation, and may be overlooked when evaluation is done after the first 30 min of water ingestion. 1 The haemodynamic responses to water ingestion may also be influenced by its osmotic properties, 23 because the pressor effect of salt water is smaller than pure water. 24 The increase in diastolic blood pressure after water ingestion found in hypertensive and normotensive subjects was similar to that observed in patients with multiple system atrophy and pure autonomic failure with sympathetic denervation.…”

Section: Discussionmentioning

confidence: 99%

Acute water ingestion increases arterial blood pressure in hypertensive and normotensive subjects

et al. 2007

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In patients with severe autonomic dysfunction, water ingestion elicits an acute pressor response. Hypertension may be associated with changes in cardiovascular autonomic modulation, but there is no information on the acute effects of water ingestion in patients with hypertension. In this study, we compared the effect of acute water ingestion on haemodynamic and autonomic responses of hypertensive and normotensive individuals. Eight patients with mild hypertension were compared to 10 normotensive individuals. After 30 min resting in the supine position all subjects ingested 500 ml of water. At baseline and after water ingestion, venous blood samples for plasma volume determination were collected, and electrocardiographic tracings, finger blood pressure, forearm blood flow and muscle sympathetic nerve activity (MSNA) were obtained. Water ingestion resulted in similar and minor reduction in plasma volume. Systolic and diastolic blood pressure increased in both hypertensive (mean7s.d.: 19/1476/ 3 mm Hg) and normotensive subjects (17/1476/3 mm Hg). There was an increase in forearm vascular resistance and in MSNA. Heart rate was reduced (hypertensive: 571 beats/min, normotensive: 576 beats/min) and the high-frequency component of heart rate and systolic blood pressure variability was increased. In hypertensive and normotensive individuals, acute water ingestion elicits a pressor response, an effect that is most likely determined by an increased vasoconstrictor sympathetic activity, and is counterbalanced by an increase in blood pressure and heart rate vagal modulation.

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Section: Discussionmentioning

confidence: 99%

Acute water ingestion increases arterial blood pressure in hypertensive and normotensive subjects

et al. 2007

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“…Some studies have suggested that water intake elicited acute changes in human physiology because it provides a sympathetic stimulus, increasing the metabolic rate, which in turn augments the daily energy expenditure (28,29). Other authors reported that water drinking activates the autonomic nervous system and induces acute hemodynamic changes (30). The actual stimulus for these effects is undetermined but might be related to either gastric distension or osmotic factors (30).…”

Section: Discussionmentioning

confidence: 99%

“…Other authors reported that water drinking activates the autonomic nervous system and induces acute hemodynamic changes (30). The actual stimulus for these effects is undetermined but might be related to either gastric distension or osmotic factors (30). In our sample, water (ml)/kg per weight was inversely associated with BMI, body fat, fat free mass and waist circumference, as well as, overweight-obesity children drank less water(ml)/kg per weight than normal weight peers.…”

Section: Discussionmentioning

confidence: 99%

The association between water intake, body composition and cardiometabolic factors among children - The Cuenca study

et al. 2016

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Introduction: Beverage consumption and its possible association with current obesity epidemic and metabolic syndrome is under investigation in recent years, however water intake is probably the most underestimated of all beverages and could play an important role. Objective: The aim of this study was to examine the association between water intake, body composition and cardiometabolic factors in a sample of Spanish children. Methods: A cross-sectional study was conducted in 366 schoolchildren (53.5% girls) aged 9-11 years from the province of Cuenca in Spain. Data of anthropometrics, body composition, cardiometabolic risk factors and cardiorespiratory fi tness variables were collected. Beverage consumption was assessed using two non-consecutive 24 h dietary recalls. Results: We found an inverse association between the consumption of water (ml)/kg per weight with BMI, body fat, fat-free mass, waist circumference, insulin levels, HOMA-IR (p < 0.001), and with arterial pressure parameters, systolic (p < 0.010) and diastolic blood pressure (p < 0.028), and mean arterial pressure (p < 0.012), as well as direct associations with HDL cholesterol (p < 0.001). In ANCOVA analyses, children who drank less water (ml)/kg per weight, had higher levels of LDL cholesterol (p < 0.050) and lower levels of HDL cholesterol (p < 0.042), and overweight-obesity subjects drank less water (ml)/kg per weight than normal peers (p < 0.011). Besides, children with lower levels of HDL cholesterol and higher levels of triglycerides and blood pressure had less water intake as a beverage. Finally, children who drank less water from beverages had high levels of LDL cholesterol. Conclusions: Higher consumption of water (ml)/kg per weight was negatively associated with BMI, body fat, fat-free mass, waist circumference, insulin levels, HOMA-IR, and positively with HDL cholesterol in children independently of age, sex and cardiorespiratory fi tness. In addition, overweight-obese children drank less water (ml)/kg per weight than normoweight ones. Therefore, water consumption is associated with numerous health benefi ts and its adequate intake could contribute to prevent obesity and metabolic syndrome in childhood.

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“…In patients suffering from severe autonomic failure, drinking water increased blood pressure substantially [6,16] accompanied by a rise of plasma norepinephrine [6]. However, the pressure response due to ingestion of similar amounts of water is not seen in young and healthy subjects [6,17,18]despite an augmented muscle sympathetic nerve activity and a rise in plasma norepinephrine levels [18]. In our study, a standard light meal (1708 kJ), which was preceded by ingestion of 100 mL water, produced significant decreases in beat-to-beat measured SBP and DBP variables starting around 30 min postprandial in older adults but was not seen in a younger control group.…”

Section: Discussionmentioning

confidence: 99%

Postprandial hypotension in older adults: Can it be prevented by drinking water before the meal?

Grobéty¹,

Grasser²,

Yepuri

et al. 2015

Clinical Nutrition

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Background & aims: An important consequence of ageing is a tendency for postprandial blood pressure to decline, which can lead to fainting. As a possible countermeasure, we investigated in healthy older adults the impact of drinking water before a breakfast meal on postprandial cardiovascular and autonomic functions. Methods: After a stable cardiovascular baseline recording for at least 20 min, twelve older adult (67 ± 1 y) test subjects ingested, in a crossover study design, either 100 mL or 500 mL of tap water over 4 min, which was followed by the consumption of the test breakfast meal (1708 kJ) over a period of 15 min. Then, cardiovascular recordings were resumed for 90 min after the meal. Eleven young (25 ± 1 y) and healthy subjects served as a control group. Measurements included beat-to-beat blood pressure, heart rate, impedance cardiography and autonomic variables. Results: In older adults, systolic and diastolic blood pressure started to decline around 30 min after the meal, with the lowest values around 60 min; these effects were not observed in the young control group. Postprandial systolic blood pressure decreased between 30 and 90 min to a greater extent in response to 100 mL than to 500 mL (À6.4 vs. À3.3 mmHg, P < 0.05). Drinking 500 mL of water tended to increase stroke volume, cardiac output and vagal markers to a greater extent than 100 mL. Conclusions: Our data suggest that drinking a large volume (500 mL) of water before a meal may attenuate postprandial hypotension in older adults.

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Cardiovascular responses to water drinking: does osmolality play a role?

Cited by 93 publications

References 33 publications

Acute water ingestion increases arterial blood pressure in hypertensive and normotensive subjects

Acute water ingestion increases arterial blood pressure in hypertensive and normotensive subjects

The association between water intake, body composition and cardiometabolic factors among children - The Cuenca study

Postprandial hypotension in older adults: Can it be prevented by drinking water before the meal?

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