Your Cart is Empty
It is established that cardiorespiratory fitness safeguards against cognitive deterioration in the elderly. Research has demonstrated that engaging in physical activity and maintaining fitness levels are advantageous for preserving executive functions, which are essential for sustaining independence into later life.
The research aimed to explore the impact of physical health on aging, particularly on two key aspects of executive function: attentional control and response inhibition. These functions involve the capacity to concentrate solely on pertinent stimuli and to prevent instinctive reactions, respectively. The flanker task, a specific exercise used in the study, tests these abilities by requiring participants to respond only to a disk with a specific central color, ignoring surrounding disks of different colors.
Following an initial screening to confirm participants' capability to undertake the task and to exclude any with disqualifying conditions, the study ultimately included 115 participants, who averaged 82.4 years old. To assess their cardiorespiratory fitness, participants performed a step test that involved rapidly lifting their knees to a predetermined height for a duration of two minutes. Additionally, their brain activity was monitored using electroencephalogram (EEG) recordings, which were then analyzed in relation to their performance in the study.
The flanker test was administered in three distinct modes: congruent, where the flanking discs matched the color of the central disc; neutral, where the flanking discs were a completely different color; and incongruent, where the flanking discs were of a contrasting color. Consistent with expectations, subtle variations were observed in the participants' EEG findings across these three test conditions.
Through a mediation analysis, it was discovered that physical fitness enhanced performance across all three versions of the test. A closer look at the EEG data revealed that this enhancement was attributed to improved early visual processing abilities. Individuals with higher fitness levels demonstrated quicker initial response times. Additionally, they exhibited more robust motor-related potentials in the cortex, although this did not appear to directly correlate with better performance on the tasks.
The researchers hypothesize that their findings indicate the necessity for regular engagement of specific brain areas to sustain performance levels in the "oldest old" group. Essentially, they suggest that the superior motor-related and early visual processing capabilities observed in more physically active older individuals could stem from their consistent use of these functions. They further theorize that to preserve the brain regions associated with more complex cognitive tasks, engaging in mentally stimulating activities is crucial.
To view the original scientific study click below:
Cardiorespiratory fitness is associated with cognitive performance in 80 +- year-olds: Detangling processing levels
Muscles are essential to keeping the body healthy and functioning well. In addition to allowing us to move, they help regulate blood sugar, support metabolic health, and protect our joints while helping us remain independent. Yet, as we grow older, muscle strength and size naturally decline. This gradual loss can affect stability, raise the risk of falls, and make it take longer to bounce back after an injury or illness.
The strength of the skeleton is often assessed by measuring bone mineral density, which reflects how well bones can withstand damage and resist fractures. According to research, changes in the skeleton could also provide important clues about cognitive aging. A new study points to a potential connection between reduced spinal bone density, changes in the brain, and a more rapid decline in brain aging.
Many Americans consume soybean oil regularly, often without realizing how frequently it appears in processed foods. Researchers are now investigating whether this widely used ingredient may play a part in the development of obesity. In a study involving mice, scientists compared the effects of different fats on weight gain and metabolism, focusing primarily on soybean oil.