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Infant body composition research revolutionised with new PEA POD® technology

25 January 2024 | Story Leonie Bolleurs | Photo Sonia Small

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

Recognition to excellent researchers

2004-11-16

The University of the Free State will give recognition to excellent researchers at UFS on Tuesday 16 November 2004. “This recognition function will also serve as the first annual lecture in research excellence,” says Prof Frans Swanepoel, Director of Research Development Division at the UFS.

This is the first occasion of its kind in the UFS. It coincides with the university’s centenary celebrations. The recognition of excellent research shows the UFS’s commitment and innovative focus on research as one of its core functions,” says Prof. Swanepoel.

Recognition will be given in different categories. They are female researchers, black researchers, young researchers, C- and L-Rated researchers, researchers with significant research outputs, B-Rated researchers and distinguished professors in research.

The promotion of equity and development of research capacity of designated groups is one of the objectives of the UFS’s research strategy therefore the university is recognising the research achievements of 21 women and 16 black persons. Amongst these are Prof. Margaret Raftery (English and Classical Languages), Dr Liesl van As (Zoology and Entomology), Prof. Peter Mbati (head of the Qwaqwa campus) and Prof. Charles Ngwena (Constitutional Law and Philosophy of Law).

The UFS is also recognising nine young researchers. They must hold a doctorate and have the potential to establish themselves as researchers within a five-year period based on their performance and productivity as researchers during their doctoral studies and/or early post-doctoral careers. Amongst them are Dr Esta van Heerden (Microbial Biochemical and Food Biotechnology) and Prof. André Jooste (Agricultural Economics).

Fifty-eight established researchers with a sustained recent record of productivity are receiving recognition in the C- and L-rated researchers’ category. Amongst them were Prof. Hennie van Coller (Afrikaans, Dutch, German and French) and Prof. Gert Erasmus (Animal- and Wildlife- and Grassland Sciences).

Prof. Francois Tolmie (New Testament) and Prof. Gina Joubert (Biostatistics) are two of the twelve researchers that are receiving recognition for having excelled in research outputs during recent years.

Nine researchers are acknowledged in the B-category for the international recognition they receive from their peers for the high quality and impact of their recent research outputs. Amongst them were Prof. Johan Grobbelaar (Plant Sciences) and Prof. Hendrik Swart (Physics). Prof. Grobbelaar focused in his research on limnology, algal biotechnology, plant stress and Prof. Swart focused on solid state physics and degradation mechanisms that are responsible for the degradation of field emission and TV displays.

Seven individuals are recognised for their exceptional achievements as researchers. Prof. Frederick Fourie, Rector, but previously in the Department of Economics, is recognised for his research in two policy areas: Political Economics, Government Finance and Fiscal Policy, and Industrial Economics, in particular analysis of the South African industrial structure and competition policy, where his research contributions played a key role in reforming South Africa’s competition policy.

Prof. Lodewyk Kock (Microbial, Biochemical and Food Biotechnology) focuses in his research mainly on pure and oxidised edible oil where yeasts are used as a study model. He obtained national as well as international recognition for this research program.

The UFS is also awarding the S2A3 Bronze Medal to recognise a Master’s degree student who has delivered outstanding research in one of the sciences. Mr Pieter Taljaard and Ms Tania Venter are recognised in this category.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za

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