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Infant body composition research revolutionised with new PEA POD® technology

25 January 2024 | Story Leonie Bolleurs | Photo Sonia Small

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

School of Medicine not closing

2009-10-22

There is no immediate threat that the University of the Free State’s (UFS) School of Medicine will be closing.

This was confirmed by Prof. Gert van Zyl, Head of the UFS’s School of Medicine and acting Dean of the Faculty of Health Science, following media reports that Prof. Andries Stulting has indicated in a meeting with other medical schools and parliamentary standing committee members that the School will have to close due to the serious problems in the health sector.

“This discussion should be seen in context. Prof. Stulting, in his capacity as acting Head of the School of Medicine, and on behalf of the School and the Faculty, sent a proactive warning to the Free State Health Department, the Member of the Executive Committee and the Premier of the Free State regarding the long-term consequences of the health crisis. This statement was not interpreted correctly. Everything that Prof. Stulting said has already been included in the position statement that the School released in May 2009. What is urgent, though, is that the problems that were identified at especially Pelonomi Hospital in May this year were still not addressed,” said Prof. Van Zyl.

According to Prof. Van Zyl, problems at Pelonomi Hospital include not enough beds, lack of funding for the health sector in the Free State and in some instances problems with filling vacant positions.

“Some of these problems have already been addressed by the Free State Department of Health. Our training platform includes not only Pelonomi Hospital, but also Universitas Hospital, National Hospital, the Free State Psychiatric Complex and several clinics in the Bloemfontein area. This means that there are other facilities available that function in order to provide appropriate training to undergraduate students. Therefore, training is not in immediate danger and the School will definitely not be closing,” he said.

“New first-year students will start their studies in 2010 and I can assure you that there will be adequate training opportunities to take in and train students. However, we do struggle with a bigger intake as requested by Government. I want to put Prof. Stulting’s remark in context: He referred to postgraduate students and therefore the specialists who are in training,” said Prof. Van Zyl.

According to Prof. Van Zyl the specialists in training is a problem that was discussed with the Free State Health Department – with specific reference to less time in operating theatres and the number of beds at Pelonomi Hospital. “We are of the opinion that, should the Department address this problem as a matter of urgency, there will be no long-term damage to the training of these specialists in training. These are the students that Prof. Stulting was referring to,” he said.

The School received more than 1 500 applications for undergraduate studies in 2010 – all of these applications met the minimum selection requirements for the 140 available places. “Our current undergraduate students are therefore not influenced and they will continue to receive the quality training for which the School is renowned,” he said.

Prof. Jonathan Jansen, Rector and Vice-chancellor of the UFS, is aware of this and he satisfied himself as to the situation when he visited the hospitals in Bloemfontein on Friday, 9 October 2009. The national Minister of Higher Education and Training, Dr Blade Nzimande, was also informed of the School’s concerns when he visited the UFS in September 2009.

Media Release
Issued by: Lacea Loader
Deputy Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za

22 October 2009

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