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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 celebrates establishment of a new department
2008-09-26

 

 At the celebration of the establishment of the Department of Genetics are, from the left: Prof. Herman van Schalkwyk, Dean: Faculty of Natural and Agricultural Sciences at the UFS, Prof. Johan Spies, head of the Department of Genetics at the UFS, Prof. Chris Viljoen, associate professor at the UFS Department of Haematology and Cell Biology and previously associated with the Department of Genetics; seated: Prof. Paul Grobler, associate professor at the UFS Department of Genetics.
Photo: Stephen Collett

UFS celebrates establishment of a new department

The establishment of the Department of Genetics in the Faculty of Natural and Agricultural Sciences at the University of the Free State (FS) was recently celebrated on the Main Campus in Bloemfontein.

The department, which formed part of the Department of Plant Sciences, is the only of its kind in the country that conducts research in behavioural genetics. “With behavioural genetics we try to determine if certain human behaviour is hereditary or if it is as a result of the environment. Although this is the fastest growing field of specialty in the United States of America, it is still an unknown field in South Africa,” says Prof. Johan Spies, head of the Department of Genetics.

The other specialty fields of the department are forensic genetics and conservation genetics. “Forensic genetics looks at the compilation of the DNA of animals. Because of our academics’ expertise, the department is regularly requested by the South African Police Service to assist them with establishing the origin of animals – especially in the case of game poaching. We recently completed a research project on cheetahs where we had to establish if they were acquired illegally of part of the farmer’s game. The research showed that the cheetahs were part of the farmer’s own breed,” says Prof. Spies.

Another specialty field of the department is conservation genetics where the genetic variance of animals is researched. A lot of research is done on vervet monkeys to determine from which area in the country they originate. The study must be completed before the 3000 vervet monkeys currently in rehabilitation centres are set free. The behaviour of monkeys in rehabilitation is also being researched.

Prof. Spies says: “Student figures in Genetics show an annual increase of 8% per year for the past five years. The first group of master’s degree students in Genetics will start their studies next year.” The department is also regarded as a leader on Clivia research.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
25 September 2008
 

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