Lawla Law has recently published her paper Effects of functional tasks exercise on older adults with cognitive impairment at risk of Alzheimer’s disease: a randomised controlled trial in Age and Ageing journal. This week she described the findings of the trial on the OUP blog:
Cognitive impairment is a common problem in older adults, and one which increases in prevalence with age with or without the presence of pathology. Persons with mild cognitive impairment (MCI) have difficulties in daily functioning, especially in complex everyday tasks that rely heavily on memory and reasoning. This imposes a potential impact on the safety and quality of life of the person with MCI as well as increasing the burden on the care-giver and overall society. Individuals with MCI are at high risk of progressing to Alzheimer’s diseases (AD) and other dementias, with a reported conversion rate of up to 60-100% in 5-10 years. These signify the need to identify effective interventions to delay or even revert the disease progression in populations with MCI.
At present, there is no proven or established treatment for MCI although the beneficial effects of physical activity/exercise in improving the cognitive functions of older adults with cognitive impairment or dementia have long been recognized. Exercise regulates different growth factors which facilitate neuroprotection and anti-inflammatory effects on the brain. Studies also found that exercise promotes cerebral blood flow and improves learning. However, recent reviews reported that evidence from the effects of physical activity/exercise on cognition in older adults is still insufficient.