Why Good Intentions Fail: Study Reveals Exercise Barriers in Older Adults with Cognitive Risk Syndrome

For millions of older people living with Motoric Cognitive Risk Syndrome, or MCR, the advice from doctors is deceptively simple: keep moving. Physical activity is among the most consistently recommended interventions to slow the twin decline of gait and cognition that defines this condition, which is marked by slow walking speed combined with subjective cognitive complaints in people who do not yet have dementia. Yet a new qualitative study from Hangzhou, China, published in BMC Geriatrics, reveals just how wide the gulf can be between the intention to exercise and the actual doing of it, and it offers one of the most granular pictures to date of why the intention-behaviour gap is so stubborn in this vulnerable population.

The research team, led by Xiaodie Yang and Dayu Tang of the Second Affiliated Hospital and School of Nursing at Zhejiang University School of Medicine, with corresponding authors Guanjun Li and Liying Ying, recruited 19 older adults living with MCR from five urban communities in Hangzhou. Rather than measuring steps or minutes of activity with accelerometers, the researchers used semi-structured interviews conducted in Mandarin Chinese, allowing participants to describe in their own words what helps and what obstructs them. This approach matters because the mechanics of failing to exercise are not always visible in tracking data; they live in hesitation, forgetfulness, fatigue and fear, precisely the phenomena the study set out to capture.

The analysis was explicitly theory-driven. The team employed directed content analysis guided by Luria’s theory of functional systems, the influential framework developed by the Soviet neuropsychologist Alexander Luria, which holds that complex behaviours emerge from the coordinated activity of multiple brain systems rather than from any single region. Applying this lens, the researchers organised their findings into three themes aligned with Luria’s architecture: awareness and motivation, information processing and contextual dependence, and executive control and behavioural regulation. Within these themes, ten subthemes emerged, and the researchers also retained inductively derived categories to refine the analytical framework where participants’ accounts exceeded the a priori theory.

The first and perhaps most striking finding is that motivation, contrary to popular assumption, was largely present. Most participants recognised the benefits of physical activity and expressed a genuine willingness to be active. But that willingness was conditional, fluctuating with energy levels, mood and circumstances. Participants described days when fatigue drained their capacity to act on their good intentions, and days when perceived physical risks, fear of falling or injury, made them hesitate. The study thus reframes the problem: the barrier is not a deficit of desire but a fragility of the conditions under which desire can become behaviour.

The second theme exposes how deeply physical activity in this group depends on memory and environmental context. Participants reported relying heavily on familiar surroundings and established routines to cue their activity. When the context changed, a new location, a disrupted schedule, a break in habit, the activity often simply failed to happen. In cognitive terms, this suggests that for people with MCR, physical activity is not sustained by internalised goals alone but by external scaffolding: the walking route taken for years, the park bench that anchors a daily circuit, the community square where exercise happens at a fixed hour. Remove the scaffold and the intention has nowhere to land.

Perhaps the most clinically significant discovery concerns the act of starting. Difficulty initiating physical activity emerged as a central barrier, and the researchers argue it should be understood as an early manifestation of the intention-behaviour gap itself. The logic is elegant and consequential: sustained activity presupposes successful initiation, so when initiation falters, everything downstream collapses. In Luria’s framework, initiation of action depends on executive systems, the very frontally-mediated functions implicated in MCR’s cognitive component. The study thus suggests that trouble getting off the couch may not be laziness or apathy but an observable neuropsychological symptom, potentially detectable before broader behavioural decline sets in.

Compounding the initiation problem, participants described the sheer cognitive load that physical activity can impose. What a healthy middle-aged person performs automatically, planning a walk, assembling what is needed, navigating the way, monitoring exertion, becomes an effortful, multi-step task when executive function is compromised. Add limited physical capacity, fluctuating energy and worries about safety, and the cumulative burden of a supposedly simple activity can exceed the available resources. The intention-behaviour gap, in this reading, is not a psychological puzzle but an arithmetic one: the demands of the task outweigh the capacities of the person on any given day.

Crucially, the study did not only catalogue obstacles; it also identified what works. Simple and familiar activity tasks were facilitators, precisely because they minimised executive and memory demands. Positive experiences with movement, the enjoyment of a walk well taken, reinforced future participation. Social support proved powerful, with family members and peers providing encouragement, companionship and practical help. Culturally meaningful community routines, group exercise traditions embedded in Chinese urban community life, offered ready-made structures in which activity happened without requiring individual planning. The lesson for intervention design is that reducing cognitive and physical burden matters as much as boosting motivation, which is usually already sufficient.

The cultural dimension deserves particular emphasis. Participants framed physical activity not merely as a health behaviour but in terms of self-cultivation, the maintenance of independence, and the desire to reduce the burden placed on family members. These meanings are deeply rooted in cultural values around filial responsibility and personal discipline, and the authors argue that future support strategies will be more effective if they remain sensitive to this context. A generic exercise prescription imported from a different cultural setting might miss these motivational anchors entirely. Conversely, interventions that connect activity to family-centred and self-cultivation values may tap motivational reserves that clinical advice alone cannot reach.

Funded by the Zhejiang Provincial Natural Science Foundation of China and the Fundamental Research Funds for the Central Universities, and approved by the Ethics Committee of Zhejiang University School of Medicine, the study offers a roadmap that could reshape how clinicians and communities support people with MCR. The practical prescriptions that follow from the findings are concrete: embed activity in fixed, familiar contexts so that memory and context work for the person rather than against them; simplify tasks to lower executive demands; harness social and community structures that make initiation collective rather than solitary; and watch for difficulty initiating activity as an early, actionable warning sign. In a world with rapidly ageing populations and no cure for the dementias that MCR so often precedes, understanding why good intentions fail may prove as valuable as any drug on the horizon, because the target here is not the brain alone but the everyday world in which an ageing brain must act.

Subject of Research: Barriers to sustaining physical activity among community-dwelling older adults with Motoric Cognitive Risk Syndrome

Article Title: Barriers to sustaining physical activity among community-dwelling older adults with Motoric Cognitive Risk Syndrome: a qualitative study of the intention-behaviour gap

Article References: Yang, X., Tang, D., Yin, L., Zheng, Z., Wang, H., Lan, M., Li, G., & Ying, L. (2026). Barriers to sustaining physical activity among community-dwelling older adults with Motoric Cognitive Risk Syndrome: a qualitative study of the intention-behaviour gap. BMC Geriatrics. https://doi.org/10.1186/s12877-026-08522-3

Image Credits: AI Generated

DOI: 10.1186/s12877-026-08522-3

Keywords: Motoric Cognitive Risk Syndrome, physical activity, older adults, intention-behaviour gap, Luria's theory of functional systems, qualitative research, executive function, cognitive ageing, community health, geriatrics, Zhejiang University, behavioural regulation