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Home NEWS Science News Health

The MedWalk diet: A step closer to walking away from dementia

Bioengineer by Bioengineer
June 21, 2021
in Health
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It’s been named the world’s best diet for weight loss, but now researchers at the University of South Australia are confident that the Mediterranean Diet – combined with a daily bout of exercise – can also stave off dementia, slowing the decline in brain function that is commonly associated with older age.

In the world-first study starting this week, researchers at the University of South Australia and Swinburne University, along with a consortium of partners* will explore the health benefits of older people adhering to a Mediterranean diet, while also undertaking daily walking.

Termed the MedWalk Trial, the two-year, $1.8 million NHMRC-funded study will recruit 364 older Australians – aged 60-90 years, living independently in a residential village, and without cognitive impairment – across 28 residential sites in South Australia and Victoria.

It’s a timely study, particularly given Australia’s ageing population, where around a quarter of all Australians will be aged 65+ by 2050.

Lead UniSA researcher, Associate Professor Karen Murphy, says combining the dietary benefits of the Mediterranean Diet with the health benefits of an exercise intervention could deliver significant benefits.

“Dementia is a condition that affects a person’s thinking, behaviour and ability to perform everyday tasks. While it is more common in older Australians, it’s not a normal part of ageing,” Assoc Prof Murphy says.

“In Australia, around 472,000 people are living with dementia. Each year it costs the economy more than $14 billion which is expected to balloon to more than $1 trillion over the next 40 years.

“While there is currently no prevention or cure for dementia, there is growing consensus that a focus on risk reduction can have positive outcomes. That’s where our study comes in.

“Early pilots of our MedWalk intervention show improved memory and thinking in a sub-group of older participants adhering to a combination of Mediterranean diet and daily walking for six months.

“We’re now extending this study across a broader group of older Australians, using carefully-designed behavioural change and maintenance strategies in the hope of substantially reducing the incidence of dementia across Australia.”

A Mediterranean diet is high in fruit, vegetables, legumes, whole grains, and fish, while being low in saturated fats, red meat, and alcohol.

The 24-month study will randomly assign residential community sites the MedWalk intervention, or their usual lifestyle (the control group), so that all participants who live at one facility will be in the same group. Changes to diet and walking will be supported through organised and regular motivational, dietary and exercise sessions.

Head of Neurocognitive Ageing Research at Swinburne’s Centre for Human Psychopharmacology and Chief Investigator, Professor Andrew Pipingas, says this trial is about trying to prevent the onset of dementia.

“As it’s extremely difficult to find a cure and treat those in the later stages of the disease, focusing our efforts on helping those at risk of developing dementia to stay healthy is one-way to ensure Australians stay well in future.”

###

Notes for editors:

  • May is National Mediterranean Diet Month
  • The full list of partners involved in this study are: Swinburne University; University of South Australia; Deakin University; La Trobe University; RMIT University; Murdoch University; Sheffield Hallam University, UK; University of East Anglia, UK; University College Cork, Ireland.

Media contact: Annabel Mansfield T: +61 8 8302 0351 M: +61 417 717 504
E: [email protected]

Researchers: UniSA: Associate Professor Karen Murphy T: +61 8 8302 1033
E: [email protected]

Swinburne: Professor Andrew Pipingas T: +61 3 9214 5215 E: [email protected]

Media Contact
Annabel Mansfield
[email protected]

Tags: AgingDiet/Body WeightExerciseMedicine/HealthMental Health
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