EHI Activities



EHI graduate student research grants

Every year the EHI provides a number of Grants to support graduate student research projects related to human hydration. In doing so the Institute seeks to encourage more research related to human hydration in order to build greater knowledge about this important aspect of public health.

Applications are welcomed every year from graduate students registered at a Higher Education Institution in biological, social, nutritional or clinical medicine studies. Each award has a value of €5,000, with additional support to a maximum of € 1,000 available on application to allow the presentation of results.

This year, the EHI has awarded five research grants. The successful applicants – and their research projects – are as follows:

Ana Oliveira University of Porto, Portugal Influence of the hydration status on the conductivity and salt content of the matrix of the airway lining fluid
Anastasia Anastasiadou Aristotle University of Thessaloniki, Greece Prevention of dehydration in the elderly population during hospitalization – exploring the Greek reality
Harriet Carroll University of Bath, UK Effects of hydration status on glycaemic control and appetite regulation
Panagiotis Aristotelous University of Nicosia, Cyprus The association between objectively measured sleep parameters and dehydration in young adults
Pinelopi Stavrinou University of Nicosia, Cyprus Hydration status and cognitive performance in adolescents during winter and summer time in Cyprus.


The European Hydration Institute:

  • Compiles and reviews scientific evidence about human hydration sources of hydration and related issues in order to become the reference centre for published hydration science and knowledge.
  • Offers Research Grants to support research related to human hydration In the first instance, this support is in the form of an annual program of grants for graduate student research projects
  • Undertakes and encourages scientific research relating to hydration to better understand the role of hydration in health, wellness and performance
  • Undertakes sociological research to understand consumer knowledge, attitudes and behaviour related to hydration
  • Partners with other institutions to further hydration research and applicable knowledge to the benefit of health care professionals and populations at risk


The European Hydration Institute:

  • Promotes the importance of ensuring adequate hydration levels and provides information to help develop greater awareness and understanding of good hydration behaviours , particularly amongst those at risk of not being optimally hydrated (specific hydration requirements exist during pregnancy, whilst breastfeeding, when playing sport, and for children and elderly)
  • Facilitates the sharing of hydration science, information, opinions and knowledge about hydration among scientists, healthcare professionals and also amongst people in general to support them in their desire to live healthier lives


Pan EU Hydration research project

The EHI is sponsoring a project to collect data on water balance in healthy adult men and women in Europe. A pilot scale approach was developed in the UK in 2011 and this is now being expanded to a further three European countries. Expressions of interest in participating have been received from a number of European Research centres since the call was launched in June 2012. The call is now closed. The research project will start at the end of 2012 and will be carried out over a 12-month period.

The effect of hydration and nutritional status on the outcomes of older patients admitted to hospital as medical emergencies.

The EHI is sponsoring a prospective cohort pilot study in patients admitted to hospital aged 65 years or older.

The objectives of this study are assessing:

+ The prevalence of dehydration at emergency and casualty departments on admission, at 48 hours, and on discharge.
+ The feasibility (acceptability and ease of use) of a hands-free drinking system
+ The prevalence of dehydration in the community following discharge. Clinical outcomes such as patient bed days, mortality, discharge destination and readmission assessments are also included.

Patient recruitment and study interventions will take place at Nottingham University Hospitals, Queen’s Medical Centre. Patients admitted to one of two elderly acute medical wards at Nottingham University Hospitals NHS Trust will also be eligible for enrolment. The project is currently in the recruitment phase, which will be performed during two periods: summer (June to August 2012, both inclusive) and winter (November 2012 to January 2013, both inclusive). The number of expected participants is 200. The study will be carried out over 24 months.

Click here to access the presentation of the project given at the 3rd Hydration Network Meeting held in Verona (Italy) on September 13th 2012 >>


EHI Grants – Past recipients and the titles of their projects


Samuel Watkins

University of Bedfordshire (UK). Ad-libitum, restricted, and Human Performance Resource Centre advised fluid replacement on hydration, cognition, physical performance, thermoregulation and oxidative stress during a 16 km simulated military march in the heat: Impact of resting hydration status?

Aaron Lowman

Brunel University London (UK). Impact of exercise-induced dehydration on small airway function in the healthy active human.

Adelais Athanasatou

Agricultural University of Athens (Greece). Which time of the day do we have the lowest hydration status?

James Donaldson

Brunel University London (UK). Understanding the distinct stroke volume responses to dehydration and euhydration during prolonged exercise in the heat in humans: the role of extrinsic versus intrinsic cardiac factors.

John Bateman

Northumbria University (UK). The effects of hot and cold drinks on thermal and sports performance at rest and during fixed intensity and self paced exercise in hot perception, thermoregulation conditions.

Olivia Patsalos

University of East London (UK). Hydration status, thirst and thinking – the role of water consumption on cognitive reflection.

María José Soto Méndez

Universidad de Granada (Spain). Can liquid ingestion modify the osmolality of human milk?



Andrew Simpson

Brunel University (UK). The effect of whole-body dehydration on exercise-induced bronchoconstriction.

Evelien Backx

Wageningen University (Holland). The more you drink the WC.  Diuretic action of weak and strong alcoholic beverages.

Maria Jose Soto Mendez

University of Granada (Spain). Study on the normative state, and inter and intra individual variation on hydration status among Guatemalan preschool children with similar dietary intake. Hydration status through different measurement methods, equipment and storage systems.

Aleks Pepa

Agricultural University of Athens (Greece). Social capital and health determine variety in beverage choice in older adults; an assets based approach.

Susanne Muckenschnabl

Wageningen University (Holland). Hydration status and exercise-induced gastrointestinal permeability.

Raquel Luzardo Socorro

Faulty of Physical Activity and Sports Sciences INEF (Spain). Improvement and validation of a questionnaire to record water and beverage intake and drinking patterns in adults.

Marlien Husemann

German Sport University Cologne (Germany). Examination of structure and water content of the Achilles tendon, Patellar tendon and cartilage in the knee in an euhydrated versus dehydrated status.

Karolina Janikowska

Medical University in Lublin (Poland). The role of the hydration status and beverage intake on postural stability in the elderly.



Agata Bialecka

University of Warsaw (Poland). The association between hydration status and cognitive function among the elderly.

Ahmed M El-Sharkawy

University of Nottingham (UK). Hydration Amongst Nurses and Doctors Oncall (The HANDs On Study).

Helen Hanstock

Bangor University (UK). Effect of exercise-induced dehydration and subsequent overnight fluid restriction on ocular markers of mucosal immunity.

Georgios Karapanagos

Agricultural University of Athens (Greece). A statistical exploitation of a water balance questionnaire towards the development of a hydration score.

Catarina Matias

Faculty of Human Kinetics – Technical University of Lisbon (Portugal). Development and Validation of Methods to Assess Total Body Water, Extracellular and Intracellular water in Highly Active Adults.

Lewis Mattin

Nottingham Trent University (UK). The effects of hypohydration and rehydration on knee joint neuromuscular performance.

Beatriz Matoto Sánchez

Universidad Politécnica de Madrid (Spain). Fluid intake in the elderly.  Differences in hydration habits between an active and a non-active Spanish population.

Helen Parretti

University of Birmingham (UK). Drinking water before main meals (preloading) as a strategy for weight loss in obese primary care patients: proof of concept randomised controlled trial.

Noemí Redondo

Institute of Food Science, Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC) (Spain). Influence of Hydration status on the GUT microbiota and their impact on the immune system.

Susana Rodrigues

University of Lisbon (Portugal). Factors associated with daily water intake and hydration status amongst institutionalized elderly people.



Annemarthe Wijnen.

Wageningen University (The Netherlands).Post-exercise rehydration: effect of beer consumption on fluid balance.

Pedro Carvalho.

Universidade do Porto (Portugal).Influence of different sugary beverages on thirst sensation.

Katarzyna Galon.

Warsaw University of Life Sciences (Poland).Assessment of hydration by beverages in elderly.

Zoi Toumpakari.

University of Bristol (UK).Soft drinks over water: Adolescents’ motives for consumption and peer influences on their decision making.

Alice Thackray.

Loughborough University (UK).Total body water and water turnover in 10 to 11 year children attending a school with a drinking water policy.

Julian Owen.

Bangor University (UK).Hypertonic and isotonic dehydration effects on hydration marker utility and human performance.

Kirsten Domnik.

German Sport University Cologne (Germany).Evaluation of fluid status and fluid loss in female soccer players before and during match play.

Robert Corney.

Loughborough University (UK).Effect of hypohydration on appetite and voluntary food intake.


Nassim Hamouti Mohamed.

University of Castilla-La Mancha (Spain).Effects of pre-exercise sodium loading on physiological strain and performance during exercise in the heat.

Olga Masilova.

Agricultural University of Athens (Greece).An evaluation of hydration in pregnant women.

Samantha Gill.

Coventry University (UK).The influence of hydration status on oral-respiratory mucosal immune responses, and rate of upper respiratory tract symptoms (URTS), during and the month following a multi-stage ultra-marathon competition conducted in a hot ambient environment?

Mohannad W. Kafri.

University of East Anglia (UK).Hydration status following stroke and the relationship between hydration and functional status at discharge.

Gareth Edward Avenell.

London South Bank University (UK).Effect of Dehydration on Intracortical and Corticospinal Excitability and Voluntary Activation during Resistance Exercise.

Stephen Mears.

Loughborough  University (UK).The effect of high intensity intermittent exercise compared to continuous exercise on voluntary fluid ingestión.

Adriana Ortiz-Andrellucchi.

University of Las Palmas de Gran Canaria (Spain).Drinking habits in healthy pregnant women of the Canary Islands.


Abstracts of the research projects undertaken

  • Drinking habits in healthy pregnant women of the Canary Islands: Abstract_A_Ortiz-Andrelicchi1
  • Osmolality levels in breast milk: a review of observational Studies: Abstract_A_Ortiz-Andrelluchi2
  • The Effect of Hypohydration on Corticospinal Excitatory Output and Voluntary Activation during Resistance Exercise: Abstract_G_Avenell
  • Hydration status following stroke and the relationship between hydration and functional status at discharge: Abstract_M_Kafri
  • Pre-exercise sodium-fluid loading improves cycling performance in the heat: Abstract_N_Hamouti
  • An evaluation of water balance in pregnant women in Greece: Abstract_O_Masilova
  • The Influence Of Hydration Status On Oral-Respiratory Mucosal Immune Responses And Rate Of Upper Respiratory Symptoms During Multi-Stage Ultra-Marathon Competition In A Hot Ambient Environment: Abstract_S_Gill
  • The effects of high intensity intermittent exercise compared to continuous exercise on voluntary water ingestion: Abstract_S_Mears




Discussing Hydration in Children

The EHI is supporting the international Paediatric Community Excellence in Paediatrics (EiP) in conducting a survey amongst healthcare professionals aimed at identifying how they follow up on children’s hydration. The results will be published in the EHI and EiP websites.

Survey among parents and Parents’ Talks

The EHI has supported the international Paediatric Community Excellence in Paediatrics (EiP) in the development of an online survey aimed at gaining an insight into parents’ views on the main topics of medical concern for parents, surrounding everyday parenting issues, including hydration.

The results of the survey will help to shape the programme of the 2012 Parents’ Congress, the first global Healthcare conference for parents, taking place in Madrid, Spain on Saturday 1 December alongside the EiP’s 2012 congress.

Talks will be delivered by leading global experts in paediatrics and will feature the participation of one of the members of the EHI Science Advisory Board, who will discuss the importance of hydration in children. After the Congress, the talks will be available for all parents around the world from the EiP website.

The importance of human hydration: perceptions among healthcare professionals across Europe.

Health care professionals are ideally placed to advise and educate on the benefits of proper hydration status and on the best ways to achieve this. Attitudes to human hydration-related issues among healthcare professionals have been studied in some specific situations, notably in older adults, in patients with dementia, and in the terminally ill. However, little published research has been conducted on the general awareness and knowledge of healthcare professionals about hydration issues.

In light of this, the EHI has performed a study to evaluate the opinion of health care professionals about the importance of hydration for health, wellness and performance, to estimate how commonly they assess the hydration status of patients, and to explore whether they consider people to be optimally hydrated. The study also examined knowledge about daily water intake recommendations, sources of water, the contribution of beverages and food to total water intake, and the impact of beverages on hydration status.

Nearly two thousand healthcare professionals from six European countries participated in the study, these included general medical practitioners (600), nurses (300), pharmacists (550), nutritionists (265) and dietitians (265), from France, Germany, Greece, Italy, Spain and the UK. Their opinion was recorded by means of computer-aided web or telephone interviews. The study has been published in the Nutrition Bulletin and can be found at:

Created on: August 21, 2012
Last modified: March 5, 2016