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25 January 2024 | Story Leonie Bolleurs | Photo Sonia Small
Prof Corinna Walsh
Prof Corinna Walsh says the PEA POD Infant Body Composition System works by directly measuring an infant’s body weight and volume, and then uses these measurements to calculate the body fat percentage, fat mass, and fat-free mass.

Nutritional and growth patterns during early life have been associated with health, development, and well-being throughout the life cycle. It is also associated with risks for developing obesity and non-communicable diseases, such as cardiometabolic diseases, later in life. These are the findings of Prof Corinna Walsh, Professor in the Department of Nutrition and Dietetics.

Maternal and child health

”In line with national priorities, a strong research focus area of the Faculty of Health Sciences and the School of Health and Rehabilitation Sciences is maternal and child health,” she says. She goes on to mention that the Department of Nutrition and Dietetics has established a reputable research programme. This programme focuses primarily on the nutritional status of pregnant women and how the early environment to which they are exposed during and after pregnancy affects short- and long-term health outcomes of the offspring.

“In our previous work, the assessment of birth outcomes of infants was, however, limited by the lack of equipment to analyse body composition. The research that we can conduct with the PEA POD® provides us with immense additional potential,” remarks Prof Walsh.

She explains, “The PEA POD Infant Body Composition System is an infant-sized air displacement plethysmography system. It works by directly measuring an infant’s body weight and volume, and then uses these measurements to calculate the body fat percentage, fat mass, and fat-free mass.

According to her, the assessment of body volume takes two minutes. “The PEA POD technique also does not require collection of any fluids and does not expose the infant to radiation. It can be performed as often as required without any risks and be used up to a maximum of 8-10 kg body weight, from birth to about eight months,” she says.

Advanced technology

In the context of research on infant body weight and composition, there is a need for accurate measurement techniques that can differentiate between fat mass and fat-free mass. Prof Walsh is of the opinion that traditional measures such as body mass index (BMI) and weight for length have limitations in this regard, as they do not provide a clear distinction between these components. Furthermore, BMI may not be reliable for assessing adiposity or obesity in paediatric populations, and it can vary significantly with age and gender.

Addressing these challenges, the PEA POD equipment offers advanced technology that allows for highly accurate quantification of infant body composition. This technological capability opens up opportunities to study the effects of early-life nutrition on growth and the developmental mechanisms that may lead to later comorbidities. So, when it comes to researching infant body weight and composition, the PEA POD equipment plays a crucial role in providing precise data and insights.

News Archive

German institute invites UFS academic to research on algae to replace fossil fuels
2015-05-08

Prof Johan Grobbelaar
Photo: Hannes Pieterse

Professor Johan Grobbelaar, from the Department of Plant Sciences at the University of the Free State, has been invited by the Institute of Bio- and Geosciences - IBG-2 at Forschungszentrum Jülich GmbH - to do research in Germany from 8 June 2015 to 4 September 2015.

During his research, Prof Grobbelaar will work on the institute’s large-scale outdoor cultivation of green micro-algae with the aim of finding alternate fuels for the aviation industry. This work includes the cultivation of algae in the laboratory, outdoors, and in the greenhouse; the mentoring of local scientists as well as assistance in, and planning of experiments for, green algae cultivation.

Prof Grobbelaar’s research focus is on Algal biotechnology, Limnology, and Photosynthesis. He has authored more than 80 articles in scientific journals, 18 chapters in scientific books, delivered more than 120 papers at scientific meetings, 41 of them at international congresses.  Among others, he was honoured with the highest award bestowed on a person by the International Association of Applied Phycologists with the title ‘Distinguished Applied Phycologist’.

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