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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

UFS cardiologists and surgeons give children a beating heart
2015-04-23

Photo: René-Jean van der Berg

A team from the University of the Free State School for Medicine work daily unremittingly to save the lives of young children who have been born with heart defects by carrying out highly specialised interventions and operations on them. These operations, which are nowadays performed more and more frequently by cardiologists from the UFS School of Medicine, place the UFS on a similar footing to world-class cardiology and cardio-thoracic units.

One of the children is seven-month-old Montsheng Ketso who recently underwent a major heart operation to keep the left ventricle of her heart going artificially.

Montsheng was born with a rare, serious defect of the coronary artery, preventing the left ventricle from receiving enough blood to pump to the rest of the body.

This means that the heart muscle can suffer damage because these children essentially experience a heart attack at a very young age.

In a healthy heart, the left ventricle receives oxygenated blood from the left atrium. Then the left ventricle pumps this oxygen-rich blood to the aorta whence it flows to the rest of the body. The heart muscle normally receives blood supply from the oxygenated aorta blood, which in this case cannot happen.

Photo: René-Jean van der Berg

“She was very ill. I thought my baby was going to die,” says Mrs Bonizele Ketso, Montsheng’s mother.

She says that Montsheng became sick early in February, and she thought initially it was a tight chest or a cold. After a doctor examined and treated her baby, Montsheng still remained constantly ill, so the doctor referred her to Prof Stephen Brown, paediatric cardiologist at the UFS and attached to Universitas Hospital.

Here, Prof Brown immediately got his skilled team together as quickly as possible to diagnose the condition in order to operate on Montsheng.

During the operation, the blood flow was restored, but since Montsheng’s heart muscle was seriously damaged, the heart was unable to contract at the end of the operation. Then she was coupled to a heart-lung machine to allow the heart to rest and give the heart muscle chance to recover. The entire team of technologists and the dedicated anaesthetist, Dr Edwin Turton, kept a vigil day and night for several days.

Prof Francis Smit, chief specialist at the UFS Department of Cardiothoracic Surgery, explains that without this operation Montsheng would not have been able to celebrate her first birthday.

“After the surgery, these children can reach adulthood without further operations. Within two to three months after the operation, she will have a normal active life, although for about six months she will still use medication. Thereafter, she will be tiptop and shortly learn to crawl and walk.”

Mrs Ketso is looking forward enormously to seeing her daughter stand up and take her first steps. A dream which she thought would never come true.    

“Write there that I really love these doctors.”

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