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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

Researcher transforms despair into diamonds
2016-01-18

PhD candidate, Lerato Machetela and some members of the group Diamonds in the Rough having some fun between rehearsals.

Awash in hopelessness, substance abuse, violence, and sexual promiscuity. This is the lived reality of the youth in Jagersfontein. But now Lerato Machetela is using her research to change it.

As a PhD candidate in Trauma, Forgiveness, and Reconciliation Studies at the University of the Free State (UFS), Machetela assembled a group of 14 young men – ranging between the ages of 9 and 18 – who call themselves Jagersfontein’s Diamonds in the Rough. Combining elements from psychology, education, and entertainment, Machetela has established a platform that grounds these young ones adrift in circumstances. By means of song and dance, these young ones have become grounded through creativity.

While discussing what it means to be free in the new South Africa, Machetela asked the group to come up with a song similar to the struggle song, ‘Nelson Mandela usi litheli ixolo’.

Jagersfontein’s Diamonds in the Rough Researcher, Lerato Machetela, combines psychology, education, and entertainment to ground local youths through creativity.

The result: He’s a teenager, but he drinks Hansa.

“This then developed into a dance routine depicting what the youth is doing with their freedom,” Machetela says. With each beat of their boots and rhythmic clap of their hands, the group illustrates the ways in which the youth has constructed – and come to understand – their daily realities. “The routine includes the expression of alcohol and drug abuse, and ends of with the importance of education.”

Through the creative expressions of Diamonds in the Rough, Machetela is able not only to explore the reality of the youth in Jagersfontein, but also to investigate intergenerational trauma. “I am looking at whether there is a relationship between these young people’s current circumstances and the experiences of their parents’ generation during the apartheid years. That is, what sort of meanings do they construct as young, black South Africans growing up in the new South Africa?”

What started off as a research project is now rippling beyond academic spheres, though. The Free State Department of Sport, Arts, Culture and Recreation has taken note of this initiative. As a result, the group has already performed at the Bloem Show, International Museums Day, and Heritage Day celebrations, as well as at the Mangaung African Cultural Festival (MACUFE).  

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