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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

‘Is the South African university curriculum ‘colonial'?’ asks Prof Jansen
2017-11-24

Description: Jansen readmore Tags: Prof Jonathan Jansen, colonial, university curriculum, western knowledge

From left; Prof Corli Witthuhn, Vice-Rector: Research; former Rector and Vice-
Chancellor of the UFS, Prof Jonathan Jansen; Prof Michael Levitt, and
Prof Francis Petersen at the celebration lecture at the UFS.
Photo: Johan Roux

One of the critical issues that emerged from the South African student protests during 2015 and 2016 was a demand for the decolonisation of university curriculums. 

A senior professor at the Stellenbosch University, Prof Jonathan Jansen, said the number of people, including academics, who joined the cause without adequately interrogating the language of this protest, was astonishing. “The role of social scientists is to investigate new ideas … when something is presented to the world as truth.” Prof Jansen was speaking during a celebration lecture at the University of the Free State in Bloemfontein on 15 November 2017. 

Large amount of knowledge not African

He said the accusation is correct to a limited degree. “The objection, in essence, is against the centring of Western, and especially European knowledge, in institutional curricula.” There is no doubt that most of what constitutes curriculum knowledge in South African universities, and in universities around the world, derive from the West. “The major theories and theorists, the methodologists and methods are disproportionally situated outside of the developing world,” Prof Jansen said. 

The dilemma is, how will South Africa and the continent change the locus of knowledge production, considering the deteriorating state of public universities? “In the absence of vibrant, original, and creative knowledge production systems in Africa and South Africa, where will this African-centred or African-led curriculum theory come from,” Jansen asked. He says the re-centring of a curriculum needs scholars with significant post-doctoral experiences that are rooted in the study of education and endowed with the critical independence of thought. “South Africa's universities are not places where scholars can think. South African universities’ current primary occupation is security and police dogs,” Prof Jansen said. 

Collaboration between African and Western scholars
“Despite the challenges, not everything was stuck in the past,” Prof Jansen said. South African scholars now lead major research programmes in the country intellectually. The common thread between these projects is that the content is African in the subjects of study, and the work reflects collaboration with academics in the rest of the world. These research projects attract postgraduate students from the West, and the research increasingly affects curriculum transformations across university departments. There is also an ongoing shift in the locus of authority for knowledge production within leading universities in South Africa. Prof Jansen feels a significant problem that is being ignored in the curriculum debate, is the concern about the knowledge of the future. How does South Africa prepare its young for the opportunities provided by the groundswell of technological innovation? “In other parts of the world, school children are learning coding, artificial intelligence, and automation on a large scale. They are introduced to neuroscience and applied mathematics,” he said.

Prof Jansen said, in contrast, in South Africa the debate focuses on the merits of mathematics literacy, and what to do with dead people’s statues.

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