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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

UFS extends footprint abroad
2015-12-14

In its constant pursuit of research excellence, the UFS has this year performed well in mainly two areas.

Apart from the research done by the UFS on national level, e.g. the involvement of its researchers with the SKA telescope, the pioneering work they do with the satellite tracking of giraffes, as well as research on trauma, forgiveness and reconciliation – to name but a few of the research areas, the university also has a research focus abroad.

Japan, Europe, America and Botswana. These are just some of the places where academics from the university are involved in research abroad.

Japan

Dr Dirk Opperman, Senior Lecturer at the Department of Microbial, Biochemical and Food Biotechnology, and Carmien Tolmie, a PhD student in the same department, visited the Okinawa Institute of Science and Technology in Onna, Japan, during November and December 2014. During the visit, experiments were performed in the Microbiology and Biochemistry of Secondary Metabolite Unit of Dr Holger Jenke-Kodama.

This formed part of a larger NRF-funded project on carcinogenic toxins produced in certain Aspergillus fungi. These fungi infect food and feedstuff and are a big concern in developing countries because it may lead to severe economic losses. The research ultimately aims to find inhibitors to block the production of these fungal toxins.



Europe and America

In 2012, an international network was established in the frame of the FP7-PEOPLE-2011-IRSES programme, called hERG-related risk assessment of botanicals (hERGscreen). The South African group included Dr Susan Bonnet and Dr Anke Wilhelm, both from the UFS Department of Chemistry.

Extracts from more than 450 South African plant species have been investigated systematically to assess the potential cardiotoxic risk of commonly consumed botanicals and supplements. The idea of the project, funded by the European Commission, is to identify safety liabilities of botanicals.

Other international partners included the University of Innsbruck, National and Kapodistrian University of Athens, Biomedical Research Foundation of the Academy of Athens, University of Basel, University of Vienna, University of Florida, Universidade Federal do Rio Grande do Sul, Universidade Federal de Santa Catarina.

Botswana


A memorandum of understanding was signed between the UFS and Botho University in Botswana in September 2015, which will be valid for three years.

The agreement, includes student and staff exchange programmes, collaborative research, teaching and learning and community engagement activities, sharing of results, and PhD/ MPhil guidance.

Young researchers

Another research focus of the UFS is the development of its young researchers. In 2015, the UFS has delivered 13 Y-rated researchers. Ten of the researchers are from the Faculty of Natural and Agricultural Sciences and three from the Faculty of the Humanities. Three of them received an Y1 rating from the NRF.

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