1985
DOI: 10.1136/bmj.291.6511.1747
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Observations on the effect of immersion in Bath spa water.

Abstract: Immersion in water in spas has been practised for centuries and has many proponents. Despite fierce debate about its efficacy there has been little scientific evaluation of the effect of immersion in mineral waters. Eight normal subjects were immersed in Bath spa water for two hours and the renal, haematological, and cardiovascular responses were compared with those in the control periods before and after immersion. Significant, twofold diuresis and natriuresis, 5% haemodilution, and a 50% increase in cardiac … Show more

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Cited by 72 publications
(34 citation statements)
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“…Advantageous hydrodynamic and physiological effects of immersion and exercise in water allow greater freedom of movement and more effective rehabilitation. 24,33,34,45,46,54,55,94,95 Improvement in disease would presumably lead to improved HRQoL and increased QALYs gained, which would offset high fixed costs. However, the gains in disease improvement during intervention were insufficient to affect HRQoL meaningfully (based on results from the EQ-5D) and have QALYs gained in either group, and although more patients improved in the land than the combined group, the difference was neither clinically or statistically significant.…”
Section: Clinical and Cost-effectivenessmentioning
confidence: 99%
See 1 more Smart Citation
“…Advantageous hydrodynamic and physiological effects of immersion and exercise in water allow greater freedom of movement and more effective rehabilitation. 24,33,34,45,46,54,55,94,95 Improvement in disease would presumably lead to improved HRQoL and increased QALYs gained, which would offset high fixed costs. However, the gains in disease improvement during intervention were insufficient to affect HRQoL meaningfully (based on results from the EQ-5D) and have QALYs gained in either group, and although more patients improved in the land than the combined group, the difference was neither clinically or statistically significant.…”
Section: Clinical and Cost-effectivenessmentioning
confidence: 99%
“…Immersion to the neck in heated water results in a number of physiological responses triggered by an increase in hydrostatic pressure. An increase in distal venous pressure leads to central hypovolaemia, with subsequent cardiovascular responses resulting in increases in cardiac output and stroke volume, 33,34 which lead to inhibition of the sympathetic nervous system, which in turn reduces vagal vasomotor tone, inducing muscle relaxation and central sensitisation to pain. 35,36 Furthermore, superficial heating of the skin and underlying structures leads to a reduction in striated muscle tone, cutaneous vasodilatation and a reduction in peripheral vascular resistance.…”
Section: Consequences Of Pathophysiology Of Jiamentioning
confidence: 99%
“…Immersion to the suprasternal notch in mineral water (35°C) results in a cascade of reactions including increased diuresis, natriuresis, and cardiac output (Epstein, 1992;O'Hare et al, 1985;Weston et al, 1987). The basis of these physiological effects is considered to be the hydrostatic pressure, which forces approximately 700 ml from the lower extremities to the central compartment.…”
Section: Mechanical Thermal and Chemical Effectsmentioning
confidence: 99%
“…The basis of these physiological effects is considered to be the hydrostatic pressure, which forces approximately 700 ml from the lower extremities to the central compartment. Distension of the volume receptors by this central hypervolemia is regarded as the trigger for the observed physiological effects (Epstein, 1992;O'Hare et al, 1985;Weston et al, 1987).…”
Section: Mechanical Thermal and Chemical Effectsmentioning
confidence: 99%
“…Vasopressine levels and plasma renin activity fall while atrial natriuretic peptide levels rise [30,31,32]. The initial haemodilution gradually normalizes [33].…”
Section: Assumed Mechanism Of Action Of Hydro-and Balneotherapymentioning
confidence: 99%