ACE Alzheimer's Fitness Specialist key terms

An umbrella term for a decline in memory, reasoning, language, and daily functioning severe enough to interfere with independence, caused by several different underlying brain diseases rather than a single condition.

A progressive neurodegenerative disease marked by amyloid plaques and tau tangles that slowly destroys memory and thinking skills, and is the most common cause of dementia in older adults.

Sticky deposits of beta-amyloid protein fragments that accumulate between neurons in the brain and are a hallmark biological feature of Alzheimer's disease.

Twisted fibers of abnormal tau protein that build up inside neurons, disrupting nutrient transport and contributing to cell death in Alzheimer's disease.

A measurable decline in memory or thinking beyond normal aging that does not yet disrupt everyday independence, though it raises the risk of later progressing to dementia.

A framework describing progression from early mild changes through moderate decline to severe late-stage impairment, used to match expectations, activities, and exercise demands to the client's current abilities.

Basic self-care tasks such as bathing, dressing, eating, toileting, and transferring; their decline signals functional impact and helps guide realistic exercise goals.

More complex tasks such as managing money, cooking, shopping, driving, and taking medications; these typically decline earlier than basic self-care in dementia.

Cognitive decline caused by reduced blood flow to the brain, often from strokes or small-vessel disease, producing a stepwise pattern that frequently coexists with Alzheimer's pathology.

The presence of two or more dementia-causing brain diseases at once, most commonly Alzheimer's disease combined with vascular dementia, which can complicate symptom patterns and safety planning.

A dementia caused by abnormal protein deposits called Lewy bodies, characterized by fluctuating alertness, visual hallucinations, and movement symptoms resembling Parkinson's disease.

A group of dementias affecting the frontal and temporal lobes, often producing early personality, behavior, and language changes rather than prominent memory loss, typically with earlier onset.

A neurodegenerative syndrome in which language ability gradually deteriorates while other cognitive functions remain relatively preserved in the early stages, affecting communication during training sessions.

An acute, fluctuating disturbance of attention and awareness often triggered by infection, medication, or metabolic problems; it is a medical emergency that must be distinguished from stable dementia.

A pattern of worsening confusion, agitation, or restlessness in the late afternoon and evening common in dementia, which may influence when exercise sessions are scheduled.

The brain's ability to tolerate damage by using flexible, alternative pathways; higher reserve may delay the visible expression of dementia symptoms and supports the rationale for lifelong mental and physical activity.

The brain's capacity to reorganize itself by forming new neural connections in response to experience, learning, and physical activity, providing the biological basis for exercise-related cognitive benefit.

Rhythmic activity that raises heart and breathing rates using large muscle groups, such as walking or cycling; it is the modality with the strongest evidence for supporting cognition in older adults.

Structured exercise against external or body-weight resistance designed to build or maintain muscle strength and mass, important for preserving function and reducing fall risk in dementia.

Performing a physical task while simultaneously completing a cognitive challenge, such as walking while naming items, to train the ability to divide attention during real-world activity.

Exercises that challenge postural stability, such as standing on one leg or weight shifting, used to reduce fall risk and maintain mobility as the disease progresses.

The likelihood that a client will lose balance and fall, elevated in dementia by impaired judgment, gait changes, weakness, and medication effects, requiring screening and environmental safeguards.

Age-related loss of muscle mass and strength that accelerates with inactivity and disease, contributing to weakness, falls, and loss of independence in clients with dementia.

An individualized written plan specifying exercise type, frequency, intensity, duration, and progression, tailored to the client's stage of disease, fitness, and medical status.

The planned, gradual increase in exercise difficulty, volume, or complexity over time; in dementia it must be flexible and may need to be reversed as the disease advances.

Breaking an exercise into smaller, easier steps and reducing the number of cues or choices so a client with cognitive decline can still participate successfully and safely.

A self-reported measure of how hard exercise feels, usually on a numbered scale; it is useful when heart-rate targets are unreliable or the client cannot report effort accurately.

A practical intensity gauge based on whether the client can speak in full sentences comfortably, used to keep aerobic effort moderate when formal monitoring is impractical.

A structured review of health history, medications, falls, and physician restrictions before starting exercise, used to identify risks and determine whether medical clearance is needed.

Written approval from a physician or other qualified clinician permitting exercise participation, often required when significant cardiovascular, neurologic, or other health concerns are present.

Testing of real-world abilities such as sit-to-stand, gait speed, and stair climbing to establish a baseline and track changes in mobility and independence over time.

A brief, validated scored test such as the Mini-Mental State Examination used to estimate cognitive function and inform communication and programming decisions, not to diagnose dementia.

The process of explaining exercise risks, benefits, and alternatives so the client or their legally authorized representative can voluntarily agree to participate, documented before training begins.

Working as a team with family or paid caregivers to share observations, set goals, and coordinate session logistics, recognizing that caregivers hold essential information and bear heavy strain.

The physical, emotional, and financial strain experienced by those caring for a person with dementia, which the fitness professional should acknowledge and help reduce through flexible scheduling and support.

Techniques such as speaking slowly, using short sentences, maintaining eye contact, and allowing extra response time to maximize understanding when a client has cognitive or language impairment.

Showing the desired movement while the client watches and imitates it, which is often more effective than verbal instruction when comprehension or language is impaired.

An approach that acknowledges and accepts a client's expressed feelings and reality rather than correcting them, reducing distress and preserving rapport during sessions.

Restless, irritable, or disruptive behavior often triggered by confusion, discomfort, overstimulation, or unmet needs; exercise can help but sessions should be adjusted or paused when it escalates.

A systematic check of the exercise environment for hazards such as loose rugs, poor lighting, and clutter, and for modifications like grab bars, to prevent falls and injuries.

Changes in mood, perception, or conduct such as apathy, wandering, aggression, or repeating questions that arise from brain changes and are common across dementia stages, shaping how sessions are delivered.