How Does Dementia Affect Mobility and Leg Strength?
When someone is diagnosed with dementia, families naturally focus on memory, confusion, and changes in thinking. But there’s another important part of the picture that can easily be overlooked: leg strength.
There’s a common belief that people living with dementia can’t follow directions, learn new tasks, or benefit from exercise. That isn’t necessarily true. With patience, repetition, and the right approach, people with dementia can continue building strength and working toward physical goals.
A dementia diagnosis changes many things, but it doesn't mean a person has to stop working toward what they can still do.
Why Is Leg Strength Important for Someone Living With Dementia?
Dementia affects memory, judgment, and thinking. Over time, changes in physical strength can make everyday activities harder, too.
Getting up from a chair, walking to the bathroom, or getting dressed may require more help than before. When these activities become difficult, a person may begin doing less and relying more on others.
Leg strength plays an important role in helping someone continue doing more for themselves. Maintaining that strength can help a person stay involved in everyday routines and keep doing the things that matter to them.
Does Walking Build Enough Leg Strength?
Walking is one of the healthiest activities a person can do. It supports cardiovascular health, endurance, and overall activity. But walking alone doesn't provide enough resistance to significantly build leg strength.
Stronger legs require exercise that challenges the muscles used for standing, walking, and everyday movement.
The good news is that strength can improve at any age. Progress looks different for everyone, and people living with dementia may need a little more patience, repetition, and encouragement along the way.
The right exercise program can be adapted to a person's abilities and needs.
Learn more: Walking Doesn’t Keep You Walking.
Can Strength and Balance Exercise Help With Mobility and Fall Risk?
One of the biggest concerns families have is falling. A walker can provide valuable support, but someone living with dementia may forget to use it or stand up without realizing they need help.
Maintaining leg strength can support the movements involved in standing, walking, and getting in and out of a chair. Exercise can also address balance and other physical abilities that contribute to mobility.
Exercise doesn't eliminate fall risk or replace a walker when one is needed. The goal is to help someone move as safely as possible while maintaining the abilities they have.
Exercise for someone living with dementia may need to look different from what families expect. Simple directions, demonstrations, familiar routines, and repetition can make activities easier to follow.
And the work doesn't have to stop when a course of therapy ends. As a person's abilities and needs change, ongoing exercise can help address those changes and support continued movement.
A 2026 review found that strength exercises may help older adults with memory and thinking changes build stronger muscles and move more easily. Read the research .
Does Dementia Mean a Wheelchair Is Inevitable?
When someone has dementia, families may worry that a wheelchair is an inevitable next step. And when falls become a concern, it can seem safer to have a parent use a wheelchair rather than risk walking.
A wheelchair can be an important part of someone's mobility and safety. But needing more support doesn't mean movement and strength no longer matter.
Standing, walking, and other forms of movement can still provide opportunities to stay active and participate in daily life. Even when someone uses a wheelchair, there may be ways to maintain strength and physical activity.
The goal isn't to avoid a wheelchair at all costs. It's to help someone maintain the ability to move, participate, and do as much as they safely can for as long as possible.
How Can Exercise Support Quality of Life and Caregiving?
Being able to participate in everyday activities is about more than physical ability. It can help someone maintain a sense of purpose, dignity, and connection to the people around them.
Whether it's helping with a simple household task, joining a family activity, or moving around the home, having the strength to participate can help someone remain involved in the life they know.
Regular movement may also help reduce restlessness for some people living with dementia. The right activities can provide opportunities to use energy, follow familiar routines, and stay engaged with the world around them.
Maintaining physical abilities can make a difference for family members, too. When a person can do more of the work of standing, walking, or transferring, caregiving may become less physically demanding.
Research suggests that exercise at home may help people with dementia stay active and manage everyday activities. Read the research .
Can Someone With Dementia Continue Building Strength?
Dementia changes many parts of a person's life, but it doesn't automatically mean they can no longer build strength or benefit from exercise.
With patience, repetition, and an exercise program designed around their abilities, people living with dementia can continue working toward stronger legs, better movement, and greater participation in daily life.
At Tandem Strength & Balance®, we focus on what a person can do - and what they may be able to do with the right support.
Our physical therapists provide one-on-one, in-home strength and balance exercise designed around each person's abilities and goals. We work with families to help older adults maintain their strength and continue doing as much as possible for themselves.
Tandem is private-pay, so families can choose ongoing exercise beyond the limits of a Medicare-covered therapy plan.
Stronger legs can help keep more possibilities open.
If your parent is living with dementia or Alzheimer's disease and you're wondering how to help them maintain their strength, we're here to talk.
Frequently Asked Questions About Exercise and Dementia
Can someone with dementia really benefit from strength exercises?
Yes. Dementia does not automatically prevent someone from building strength or benefiting from exercise. With appropriate guidance, repetition, and an individualized approach, people can work on maintaining and improving their physical abilities.
What if my parent can't remember how to do the exercises?
Exercises can be adapted using simple directions, demonstrations, and repetition. A physical therapist can provide guidance and adjust the approach to the person's attention, understanding, and abilities.
Why is leg strength so important for someone with dementia?
Leg strength supports everyday movement, including standing, walking, and getting in and out of a chair. Maintaining strength can help someone continue doing more for themselves and participating in daily routines.
Can exercise help prevent falls?
Exercise can improve physical abilities that contribute to mobility and balance, but it cannot eliminate fall risk. A person's fall risk, need for a walker, and exercise program should be assessed individually.
What happens when my parent finishes Medicare-covered physical therapy?
Medicare-covered therapy may end while a person still needs ongoing exercise and strength work. Tandem Strength & Balance® provides private-pay, one-on-one, in-home strength and balance exercise for people who want to continue working on their physical abilities beyond that point.
Research & Further Reading
- Resistance Exercise and Alzheimer's Disease (2025) - Looks at how strength exercise may support physical and thinking abilities.
- Strength and Physical Function in People With Dementia (2003) - Explores whether people with dementia can improve strength and movement through exercise.
- Exercise and Muscle Strength in Older Adults With Memory and Thinking Changes (2026) - Reviews how different types of exercise may support strength and physical abilities.
- Exercise at Home for People With Dementia (2019) - Looks at how home-based activity may support everyday life for people with dementia and their caregivers.