Hydrotherapy... The relative density of an object is the ratio of the weight of the object to the weight of an equal volume of water. Buoyancy aids in rehabilitation of weak muscles and painful joints by reducing weight-bearing on joints. Fluid pressure is exerted equally on all surfaces of an immersed body, the deeper a body is immersed the greater the pressure. Viscosity is a measure of the frictional resistance of a liquid, this is significantly greater in water than air. Surface tension of water is where resistance to movement is greater than movement in air. Understanding how water temperature levels affect the body is an essential part of effective treatment. All round visibility greatly enhances 'gait analysis' and the study of a patient or athlete. With movements being slowed down and supported by the resistance of water, physiotherapists and trainers are provided with increased analysis capabilities. home health & weightloss rehab & mobility fitness & wellbeing case studies why water new products gallery news & events links & blogs international enquiries contact