Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
10 January 2022 | Story Elsabé Brits
Dr Monique De Milander
Dr Monique de Milander, Lecturer in Exercise and Sport Sciences at the UFS, is leading research on attention-deficit hyperactivity disorder (ADHD) and visual and motor control difficulties.

Research done by the University of the Free State (UFS) has shown that Grade 1 learners not only experience visual problems, but also developmental coordination disorder. Teachers and parents can help to identify this.

In the first study published in the South African Journal of Child Health (https://doi.org/10.7196/SAJCH.2021.v15i1.1705), Dr Monique de Milander, Lecturer in Exercise and Sport Sciences at the UFS, led research on attention-deficit hyperactivity disorder (ADHD) and visual and motor control difficulties.

“Visual problems are often overlooked and are seen as a hidden disability. Thus, children are labelled as ADD/ADHD, but in fact, they have learning-related visual problems. Our eyes connect the world with the brain, and we receive 80-90% of information from our eyes. Consequently, visual problems lead to poor vision, and these visual problems will interfere with children’s ability to learn in the classroom,” she explains.

During the study, ADHD symptoms were found to be significantly associated with half of the visual functioning difficulties. These skills include fixation – the ability to fixate on a stationary object with both eyes – in addition to fixating with the eyes independently.

Ocular alignment of the right eye was indicated as a problem – the ability of the two eyes to work together in order to view an object clearly. Therefore, the eyes must move in a coordinated manner. Visual tracking was the skill that the children struggled with the most in both screening tests; thus, to follow a moving object. This was found for both eyes – the right eye on an X shape, and the left eye on a circle.

She added that science suggests that although children at the age of five or six can perform a variety of manipulative skills such as catching, throwing, kicking, and hitting, the manipulative skills that require visual tracking or the ability to intercept moving objects, develop somewhat later (eight years) due to the sophisticated visual-motor requirements.

Furthermore, although maturation plays a role in achieving these skills, children need opportunities to practise the skills in a variety of settings. Parents and teachers should encourage children to take part in physical activities and sports, in addition to proper instruction on how to perform the manipulative skills.

How will these visual difficulties be identified?

It is important to note that children can fixate, visually pursue objects, and reach accurate decisions about the size and shape of an object; however, some refining still has to take place. In other words, the perceptual abilities of the young child are not yet complete. Some examples of visual perception problems in a young child, as indicated by perceptual motor skills involving the eyes, are as follows:

1. Using control to intercept a ball
2. Interchanging letters and numbers
3. Poor perception of moving objects
4. Poor figure-ground perceptual abilities
5. Distance perception
6. Anticipating timing

What is the next step after identifying visual difficulties?

The first aspect to take into consideration is the age of the child, since we now know that their perceptual abilities need to be refined. If the problem continues, screening tests can be done. If the child is at risk, it is recommended that the parent see an optometrist who specialises in visual problems.

How does one assist a child with ADHD in the classroom?

Five tips for teaching students with ADHD:
1. Change activities frequently to accommodate short attention span
2. Use a positive behaviour modification programme to keep student focused on task
3. Incorporate 3-5 min of conscious relaxation at the end of the physical education period
4. Give brief instructions
5. Use activities that promote cooperation among all students

In another study led by Dr De Milander and published in the South African Journal of Childhood Education (https://sajce.co.za/index.php/sajce/article/view/930), the early identification of learners with developmental coordination disorder was researched.

In children experiencing poor motor skills (fine and gross motor coordination difficulties), without evidence of a neurological disorder and which cannot be linked to a general medical difficulty such as cerebral palsy or a pervasive development disorder, the low motor skills are significant – to such an extent that it interferes with their social competence, academic performance, and physical development, leading to problems with completing daily activities, Dr De Milander explains.

The characteristics of developmental coordination disorder are:

• Experiencing problems getting dressed and tying shoelaces
• Finding it difficult to run, skip, or jump
• Experiencing problems with visual perception
• Poor pencil grip
• Slow and hesitant movement
• Poor spatial concepts about in front, behind, next to, below, and above
• Unable to catch or kick a ball
• Finding it difficult to work in group context

She gives the following advice: Children should be motivated and challenged to participate in simple, yet enjoyable and relaxing physical activities. The focus should be on the child's strengths and not his/her weaknesses. Allow the child to play regularly in sandboxes and with clay. Improve the child’s ball skills by catching and throwing. Motor skills must be learnt through simple mastery steps. Improve the child's movement skills and make participation in movement activities enjoyable and challenging. Concentrate on reaction skills and play in which the child can participate. In extreme cases, specialised treatment by an occupational therapist and a kinderkineticist is important.

It is important to know that children do not outgrow these disorders as previously believed; therefore, many children still experience these difficulties as adolescents. Thus, if your child is experiencing any problems, take cognisance of the problem and address it as soon as possible. Professionals such as kinderkineticists are available in private practice and at various schools to assist your child in improving a variety of deviations. The kinderkineticist can evaluate your child through a standardised test to determine the problem, and then suggest an intervention to address the specific problem, as well as to prevent secondary problems such as low self-esteem, physical inactivity, overweight and obesity, etc., which are associated with these disorders.

For help, visit the website of the South African Professional Institute for Kinderkinetics where you will be able to find a kinderkineticist in your area.

Kinderkinetics is a profession aimed at promoting and optimising the neuromotor development of young children (0-13 years) through science-based physical activity.  All programmes within this profession have a preventative, stimulating, developing, and rehabilitative nature. In summary, it has the following goals:

• Promoting functional growth and proper motor development in young children.
• Focusing on certain movement activities to promote/facilitate sport-specific skills.
• Implementing appropriate rehabilitation programmes for children with growth and/or developmental disabilities in order to maintain an active, healthy lifestyle.


News Archive

Research on cactus pear grabs attention of food, cosmetic and medical industry
2015-02-18

Cactus pear
Photo: Charl Devenish

The dedicated research and development programme at the UFS on spineless cactus pear (Opuntia ficus-indica) – also known as prickly pear – has grown steadily in both vision and dimension during the past 15 years. Formal cactus pear research at the UFS started with the formation of the Prickly Pear Working Group (PPWG) in June 2002. It has since gone from strength to strength with several MSc dissertations and a PhD thesis as well as popular and scientific publications flowing from this initiative.

According to Prof Wijnand Swart from the Department of Plant Sciences, the UFS is today recognised as a leading institution in the world conducting multi-disciplinary research on spineless cactus pear.

Cactus pear for animal feed

Increasing demands on already scarce water resources in South Africa require alternative sources of animal feed – specifically crops that are more efficient users of water. One alternative with the potential for widespread production is spineless cactus pear. It is 1.14 x more efficient in its use of water than Old man saltbush, 2.8 x more efficient than wheat, 3.75 x more efficient than lucerne and 7.5 x more efficient than rangeland vegetation.

“Studies on the use of sun-dried cactus pear cladodes suggest that it has the potential to provide some 25% of the basic feed resources required by South Africa’s commercial ruminant feed manufacturing sector,” says Prof HO de Waal of the Department of Animal, Wildlife and Grassland Sciences at the UFS.

Until recently, research has focused extensively on the use of cactus pear as drought fodder. However, this is now beginning to shift, with growing interest in the intensive production of spineless cactus pear for other types of animal feed. One example is the spineless cactus pear fruit, produced seasonal, yielding large quantities of fruit in a relatively short period of a few months in summer. Unless kept in cold storage, the fruit cannot be stored for a long period. Therefore, a procedure was developed to combine large volumes of mashed cactus pear fruit with dry hay and straw and preserve it for longer periods as high moisture livestock feed, kuilmoes – a high water content livestock feed similar to silage.

Cactus pear and Pineapple juice
Photo: Charl Devenish

Cactus pear for human consumption

“In addition to its use as a livestock feed, cactus pear is increasingly being cultivated for human consumption. Although the plant can be consumed fresh as a juice or vegetable, significant value can be added through processing. This potential is considerable: the plant can be pickled; preserved as a jam or marmalade; or dried and milled to produce baking flour. It can also serve as a replacement of egg and fat in mayonnaise,” said Dr Maryna de Wit from the Department of Microbial, Biochemical and Food Biotechnology.

The extraction of mucilage from fresh cladodes can form a gelling, emulsifier, and fat-replacing agent commonly found in food products such as mayonnaise and candy. During an information session to the media Dr De Wit and her team conducted a food demonstration to showcase the use of the cladodes in a juice, chicken stir-fry, biscuits and a salad.

The extrusion of cactus pear seed oil provides a further lucrative niche product to the array of uses. These include high-value organic oil for the cosmetic sector, such as soap, hair gel and sun screens.

The cladodes and the fruit also have medicinal uses. It has anti-viral, anti-inflammatory, pain killing and anti-diabetic agents. It is also high in fibre and can lower cholesterol. The fruit also prevents proliferation of cells and suppresses tumour growth and can even help to reduce a hangover.

In South Africa the outdated perception of cactus pears as thorny, alien invaders, is rapidly disappearing. Instead, farmers now recognise that cactus pear can play a vital role as a high yielding, water-efficient, multi-use crop, said Prof de Waal and the members of the Cactus Pear Team.

Facebook photo gallery
Dagbreek interview with Dr Maryna de Wit  

Research on cactus pear (read the full story)

For more information or enquiries contact news@ufs.ac.za

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept