Seated Sensorimotor Exercise for Functional Mobility in Older Adults With and Without Diagnosed Dementia: A Six-Month Non-Randomised Controlled Study

Getting around the world is one of the most fundamental ways people maintain their independence as they age. For many, the simple act of standing up from a chair, walking a few steps, turning around, and sitting back down is a daily test of strength, balance, and the brain's ability to coordinate movement. When this becomes difficult, it often signals that the body's internal systems are struggling to filter out old, automatic responses that no longer serve a purpose. In early infancy, humans possess a set of automatic reactions called primitive reflexes. These are hardwired survival responses, such as the urge to grasp an object when the palm is touched or the instinct to stiffen the body when startled. As a child's brain develops, these automatic patterns are usually suppressed by the higher centers of the brain, allowing for voluntary, controlled movement. However, as people age or develop conditions like dementia, these ancient reflexes can re-emerge or persist, creating a kind of neurological "noise" that interferes with smooth, intentional motion. This accumulation of unwanted automatic responses is known as reflex burden. Researchers have long wondered if it is possible to clear this noise through exercise, particularly for those who cannot stand or walk safely, and if doing so might help them move with greater ease.

A team of researchers in Hungary set out to test a specific approach to this problem. They designed a six-month program where older adults, including those with diagnosed dementia, performed exercises entirely while seated. The goal was not to build muscle strength in the traditional sense, but to retrain the brain's control over movement. The program involved slow, deliberate movements that first mimicked the patterns of those persistent reflexes and then immediately switched to voluntary actions that counteracted them. For example, a participant might be guided to move their head and arms in a way that triggers an old reflex, and then immediately asked to perform a different, controlled movement that breaks that pattern. This was done five days a week for thirty minutes, led by trained staff in day-care centers. The researchers wanted to see if this "sensorimotor" training could reduce the burden of these reflexes and, in turn, improve how quickly and safely people could get up and walk. They compared the results of the people who did this seated program against a group of people who continued with their usual daily activities, which included standard social and recreational time but not this specific type of exercise.

The study involved ninety older adults across six different centers. The results showed a clear connection between the two main things the researchers measured: the level of reflex burden and the speed of movement. At the start of the study, people with higher scores for reflex burden—meaning more of those automatic, unwanted responses were present—took significantly longer to complete the walking test. This confirmed that the "noise" of these reflexes was indeed linked to slower, less efficient movement. Over the six months, the group that participated in the seated exercise program saw a substantial reduction in their reflex burden. On average, their scores dropped by nearly fourteen points, a change that was much larger than what was seen in the group that did not receive the special training. In fact, the control group actually saw their reflex burden increase slightly over time, which is consistent with the natural progression of aging.

The improvements in movement were also notable, though the statistical certainty varied depending on how the data was analyzed. The people in the exercise group got faster at the walking test, shaving off an average of nearly five and a half seconds from their time, while the control group slowed down. When the researchers looked at the data without accounting for the specific centers where the study took place, the improvement in walking speed was very strong and statistically significant. However, when they adjusted the analysis to account for the fact that the participants were grouped by location, the certainty of the walking speed improvement became less precise. The data still pointed toward a benefit, but the margin of error was wider, meaning the researchers could not claim with absolute statistical confidence that the exercise caused the speed increase in every scenario. Despite this statistical nuance, every single center where the exercise was offered saw an average improvement in both reflex burden and walking speed. No one in the exercise group reported any injuries or accidents during the sessions, and the attendance rate was high, with participants showing up for about eighty-one percent of the scheduled sessions.

The study also looked closely at whether the reduction in reflex burden directly caused the improvement in walking speed. While the two things improved together, the researchers found that once they accounted for other factors like age and dementia status, the change in reflex scores did not independently predict the change in walking speed. This suggests that while the exercise helped both, the mechanism might be more complex than simply "less reflex equals faster walking." It is possible that the attention, motivation, and general engagement provided by the daily sessions also played a role, or that the specific coordination tasks helped the brain in ways that are not fully captured by the reflex score alone. The researchers were careful to note that this was not a randomized trial, meaning the groups were not assigned by chance, which introduces the possibility that other differences between the centers or the people could have influenced the results. They also emphasized that while the walking test improved, the study did not measure whether these changes actually prevented falls or improved daily life in the real world.

Ultimately, the findings suggest that a simple, seated exercise program can be a safe and effective way to engage older adults, including those with dementia, in activities that may improve their mobility and reduce the burden of automatic reflexes. The approach offers a promising alternative for people who cannot participate in standing or walking exercises. While the study does not prove that this method prevents falls or works equally well for everyone, it provides strong evidence that the body and brain can respond to this type of training. The researchers conclude that this accessible method deserves further investigation in larger, more rigorous studies to confirm whether it can reliably help older adults maintain their independence. For now, the results offer a hopeful glimpse into how targeted, low-impact movement might help clear the neurological clutter that often slows us down as we age.