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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

Art and science help us understand the world and our place in it
2017-10-28



Description: Art and science  Tags: Art and science

At the event were, from the left: Tristan Nel, first-year Fine Arts student;
Dr Janine Allen-Spies from the Department of Fine Arts;
Prof Carlien Pohl-Albertyn from the Department of Microbiology,
Biochemical and Food Biotechnology; and Pheny Mokawane, a
Microbiology, Biochemical and Food Biotechnology student.
Photo: Charl Devenish

Although BioArt dates back as far as the 15th and 16th centuries with the work of Leonardo da Vinci, it is not every day that art and science combine. This rare phenomenon made its appearance when two totally different groups of students – studying arts and microbiology respectively – joined hands in an initiative to create BioArt.

This first-time undergraduate teaching collaboration between the Departments of Fine Arts and Microbial, Biochemical and Food Biotechnology at the University of the Free State (UFS), which is characterised by the use of living materials, such as enzymes, microbes and DNA, as well as scientific tools and methods, is exploring a number of questions. 

Different outcomes for arts and microbiology students

According to Prof Carlien Pohl-Albertyn from the Department of Microbiology, Biochemical and Food Biotechnology, one of the central questions explored in BioArt is the nature of ‘life’. “At which stage can matter be classified as being alive or living?” she asked. 

“We realised that the outcomes for the two groups of students would not be the same. For the microbiology students, the focus would be on the understanding and effective communication of a microbiological concept. For the art students the focus would be on the execution of the assignment using visual elements and applied theory of art,” said Prof Pohl-Albertyn.

Dr Janine Allen-Spies from the Department of Fine Arts added: “Art students will also be exploring strangely or previously unforeseen gaps between art and science that can be filled with imaginative interpretations which may forward creative insights in both BioArt as a developing art form and microbiology as investigative science.”

Students’ understanding of microbial evolution reflected in art
The art students had to visit the microbiology labs for their assignment as this is mostly a foreign environment for these students. “The paint medium they had to use was gouache. This medium with its bright colours works well to depict microscopic organisms in art,” Dr Allen-Spies said. 

On display at the Department of Microbial, Biochemical and Food Biotechnology on the Bloemfontein Campus, at a recent event to introduce this new initiative to a wider audience, was a range of visually and scientifically compelling paintings and artefacts (such as paintings, poems, songs, apps) which explore a theme within microbiology from a BioArt perspective that uses creativity to communicate concepts dealt with in the module Microbial Evolution and Diversity.

Any parties who are interested in buying the art can contact Dr Allen-Spies at allenj@ufs.ac.za.

Paintings and artefacts reflects students understanding of BioArt. At the recent opening of the BioArt exhibition at the UFS Department of Microbial, Biochemical and Food Biotechnology, was the work of Madeleen Jansen van Rensburg on display.

Pheny Mokawane, a Microbiology, Biochemical and Food Biotechnology student, wrote a poem for his BioArt project in the Microbial Evolution and Diversity assignment. 

 

 

 

 

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