June 19, 2026
Most people think of leg training as a way to improve athletic performance, build muscle, or make everyday activities easier. While those benefits are important, research suggests that stronger legs may also play a significant role in protecting brain health as we age.
Alzheimer’s disease affects millions of people worldwide and remains one of the leading causes of disability among older adults. While there is currently no cure, scientists continue to identify lifestyle factors that may reduce risk. One of the most promising areas of research involves physical activity, muscle strength, and resistance training. Increasing evidence suggests that maintaining strong muscles, especially in the lower body, may help preserve cognitive function and reduce the likelihood of developing Alzheimer’s disease. [1]
The relationship between muscles and the brain is far more complex than many people realize. Skeletal muscles are not simply tissues that move our bodies; they also function as endocrine organs, releasing signaling molecules called myokines during exercise. These compounds can influence inflammation, blood flow, metabolism, and even brain function.
Researchers at Rush University followed more than 900 older adults who did not have dementia at the start of the study. After measuring strength in multiple muscle groups throughout the body, they discovered that individuals with greater overall muscle strength had a significantly lower risk of developing Alzheimer’s disease. In fact, each increase in muscle strength was associated with approximately a 43% reduction in Alzheimer’s risk. Participants with the highest strength levels also experienced slower rates of cognitive decline compared to weaker individuals. [1]
These findings suggest that maintaining muscular strength may provide a protective effect against age-related cognitive deterioration.
While total body strength is important, lower-body strength may be particularly valuable for healthy aging. The muscles of the hips, glutes, quadriceps, and hamstrings are responsible for walking, climbing stairs, standing up from a chair, and maintaining balance. These movements stimulate the nervous system, challenge coordination, and encourage blood flow throughout the body, including the brain.
Research has shown that measures of leg strength and functional lower-body performance are strongly associated with cognitive health. Individuals with weaker muscles and poorer chair-rise performance have been shown to face significantly higher rates of dementia compared to those with stronger lower-body function. [2]
Leg strength also supports mobility and independence. Maintaining the ability to walk confidently and engage in physical activity increases opportunities for social interaction, cardiovascular fitness, and cognitive stimulation which are all factors associated with healthier brain aging. [3]
Resistance training is one of the most effective ways to build and preserve muscle mass and strength throughout life. Unlike aerobic exercise alone, resistance training directly challenges muscles, bones, connective tissue, and the nervous system.
A recent systematic review examining resistance training in older adults with Alzheimer’s disease found consistent improvements in muscle strength, gait performance, and physical function. While cognitive improvements were generally modest, researchers concluded that resistance training remains an important intervention for maintaining independence and overall quality of life in older adults affected by Alzheimer’s disease. [4]
Other research suggests that the neurological adaptations created through resistance training may help preserve communication between the brain and muscles. These adaptations can improve motor control, coordination, balance, and functional performance as we age. [5]
The gluteal muscles are among the largest and most powerful muscles in the human body. They play a critical role in walking, climbing stairs, maintaining posture, and preventing falls.
Weak glutes can contribute to decreased mobility, reduced activity levels, and loss of independence. Over time, inactivity accelerates muscle loss, known as sarcopenia, which has been associated with increased risk of cognitive decline and dementia. [6]
By strengthening the glutes and hips, older adults may improve their ability to remain physically active, which supports both physical and cognitive health.
One challenge many adults face is that traditional lower-body exercises can become uncomfortable due to knee, hip, or back pain. Fortunately, strength training does not require heavy barbells or high-impact movements.
Exercises that can effectively strengthen the lower body while minimizing joint stress:
For individuals looking to perform hip thrusts without the discomfort of balancing a heavy barbell across the hips, equipment such as the Jacked Ass Belt can provide an alternative loading option using dumbbells or kettlebells. This allows users to challenge the glutes and lower body while reducing pressure on the hips and pelvis compared to traditional barbell hip thrust setups.
The goal is not necessarily to lift the heaviest weight possible. Consistent progressive resistance training that safely challenges the muscles can produce meaningful improvements in strength, mobility, and overall health.
Although no exercise program can guarantee prevention of Alzheimer’s disease, the evidence continues to point toward physical activity and muscular strength as important factors in maintaining brain health.
Strong legs help us move. Movement helps us stay active. Activity supports cardiovascular health, social engagement, independence, and brain function. Together, these factors create a powerful foundation for healthy aging.
The next time you’re tempted to skip leg day, remember that strengthening your glutes, hips, and legs may be doing more than building muscle. It may also be investing in the long-term health of your brain.
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