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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

Nobel Laureate for Chemistry to visit UFS
2017-10-28

Description: Prof Levitt read more Tags: Prof Levitt read more

Prof Michael Levitt will be hosted by the UFS from
14 to 16 November 2017, where he will present the
first lecture in the Vice-Chancellor’s
Prestige Lecture Series.
Photo: Supplied

It is a great honour for the University of the Free State (UFS) to host Prof Michael Levitt, recipient of the 2013 Nobel Prize for Chemistry, which he shares with Marti Karplus and Arieh Warshel.

The trio received the Nobel Prize for their development of multiscale models used for complex chemical systems. “Being awarded the Nobel Prize is a unique and marvellous experience that no one can prepare for or could in any way know what to except,” said Prof Levitt during his 2013 Nobel Lecture at the Stanford University School of Medicine.

First lecture in Vice-Chancellor’s lecture series

The South African-born Nobel Laureate and Academy of Science of South Africa (ASSAf) Visiting Scholar will present the first lecture, Birth and Future of Multiscale Modelling of Macromolecules, in the Vice-Chancellors Prestige Lecture Series at the UFS on 14 November 2017. Prof Levitt is well-known for developing approaches which predict macromolecular structures.

He is one of many distinguished academics invited annually by ASSAf to deliver lectures as part of the Distinguished Visiting Scholars’ Programme, presented by ASSAf at universities across the country.

Pioneer in research of molecular dynamics

Prof Levitt is a biophysicist and a professor of Biology at Stanford University. He was one of the earliest researchers to conduct research on molecular dynamics stimulations of DNA and proteins. “My post-prize ambitions are twofold and probably inconsistent: (1) Work single-mindedly as I did in the mid-1970s on hard problems, and (2) Help today’s young scientists gain the recognition and independence which my generation enjoyed,” said Prof Levitt.

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