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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

Number of NRF-rated researchers increases in 2012
2012-10-29

29 October 2012

Three researchers at the University of the Free State received B-ratings for 2013 from the National Research Foundation (NRF). Prof. Johan Henning, Dean of Law, obtained the highest rating in his field of mercantile law in South Africa, a B1.

Prof. Jackie Naudé from Classical and Near Eastern Studies and Prof. Dingie Janse van Rensburg, Professor Extraordinary at the Centre for Health Systems Research and Development, also obtained B3-ratings. Prof. Naudé is the first B-rated researcher in the Faculty of Humanities.
Prof. Helene Strauss obtained the highest rating (Y1) for a UFS young scholar in the Humanities.
In total, the NRF rated researchers at the UFS grew from 95 in 2011 to 109 in 2012, a growth of almost 15 percent.
The NRF ratings committee consist of three reviewers from South Africa and three from abroad. A rating is valid for six years and researchers must reapply for rating before the end of that period.
For a B1-rating all reviewers must be firmly convinced that the applicant enjoys considerable international recognition for the high quality of the researcher’s recent output, with some indicating that the researcher is a leading international scholar in a field. For a B3-rating most of the reviewers must be convinced that the researcher enjoys international recognition for the high quality and impact of the research.
Prof. Jonathan Jansen, Vice-Chancellor and Rector, said in the UFS Research Report “The UFS now has among the highest number of NRF-rated scientists per size of the academic faculty and we have seen the productivity graph bear witness to a record growth in our funded research outputs; we have won our first-ever NRF/DST Research Chairs. In each of these achievements, the excellence we seek comes with and through the diversity we celebrate.”
More ratings and renewals were expected by the time of Bult went to print.. More than 35 researchers applied for ratings or renewal of ratings.
  • Colleagues who were admitted to the prestigious Academy of Science of South Africa (ASSAf) are Profs. Pumla Gobodo-Madikizela, Driekie Hay, Heidi Hudson, Lodewyk Kock, Odireleng Ntwaeaborwa, Hugh Patterton, Ian Phimister and Melanie Walker. ASSAf was established in 1996 with the mission of using science for the benefit of society. New members are elected after nomination by four existing members (at least two of whom do so from personal knowledge of the candidate). ASSAf has some 350 members and represents South Africa in the international community of science academies.
  • Dr Marieka Gryzenhout of Plant Sciences became a member of South African Young Academy of Science (SAYAS). SAYAS celebrated its first year in 2012. It was launched as a means to enable South Africa’s young scientists to fully participate in locally and internationally relevant research and development agendas. Prof. Aldo Stroebel, Director: Internationalisation, is also a member of SAYAS.

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