Glossary
Searchable terminology from accessibility, web standards, and related fields.
93 results found in Motor Accessibility.
- Integrated Control System (Integrated Control)
- An assistive technology approach where a single input device serves multiple control functions, such as wheelchair navigation, mouse cursor control, and text entry. Integrated control systems reduce t…
- Key Acceptance Delay (Acceptance Delay, Key Debounce)
- A keyboard accessibility setting that requires a key to be held down for a specified minimum duration before it is registered as a deliberate press. Keys released before the delay period expires are i…
- Key Remapping (Key Rebinding, Control Remapping, Custom Key Bindings)
- The ability to reassign keyboard controls to different keys than the software defaults. Key remapping is essential for users with motor disabilities who may only be able to reach certain areas of the …
- Keyguard (Keyboard Guard, Key Guard)
- A rigid cover that fits over a keyboard with holes aligned to each key, allowing users with motor impairments to rest their hands on the surface without accidentally pressing keys. Keyguards help peop…
- Knee-Ankle-Foot Orthosis (KAFO)
- A lower-limb orthosis that spans the knee, ankle, and foot to provide weight-bearing support and prevent knee buckling or hyperextension in people with significant leg weakness or paralysis - commonly…
- Manual Dexterity (Fine Motor Skills, Hand Dexterity)
- The ability to use hands and fingers to perform precise, coordinated movements. Reduced manual dexterity can result from conditions such as arthritis, neurological disorders, injuries, or aging, and a…
- Manual Muscle Testing (MMT, Muscle Strength Testing)
- Manual muscle testing (MMT) is a clinical assessment technique used by occupational therapists, physiotherapists, and other healthcare professionals to evaluate the strength of individual muscles or m…
- Midas Touch Problem (Midas Touch Effect)
- The Midas Touch problem is a well-known challenge in gaze-based and dwell-time-based computer interfaces where everything the user looks at or pauses the cursor over is interpreted as a selection comm…
- Mobility Disability (Mobility Impairment, Physical Mobility Limitation)
- A disability that affects a person's ability to move freely, including walking, climbing stairs, maintaining balance, or using fine motor skills. Mobility disabilities may result from conditions such …
- Motor Function Time (Motor Response Time, Motor Cycle Time)
- The time required to execute a physical action such as pressing or releasing a key, clicking a mouse button, or moving a pointing device. In the Model Human Processor, motor function time for able-bod…
- Motor Recovery (Motor Rehabilitation, Motor Function Recovery)
- The process of regaining voluntary movement control and physical function after neurological injury such as stroke, traumatic brain injury, or spinal cord damage. Motor recovery involves reorganizatio…
- Motor Skill (Motor Skills, Gross Motor Skill, Fine Motor Skill)
- A motor skill is a learned ability to produce a coordinated movement of muscles to achieve an outcome, ranging from gross-motor actions like walking, jumping, and balancing to fine-motor actions like …
- Mouse Alternative (Alternative Pointing Device, Mouse Replacement)
- A mouse alternative is any input device or technique that lets a user perform pointer-control tasks — moving a cursor, clicking, dragging, selecting — without using a conventional mouse. For people wi…
- Mouse Emulation (Mouse Simulation, Virtual Mouse)
- Software or hardware that simulates mouse pointer movement, clicks, and other mouse actions using alternative input methods such as head tracking, eye gaze, joysticks, switch scanning, keyboard comman…
- Mouth Interface (Mouth-operated interface, Mouth-based input)
- An input modality that uses mouth movements - tongue position, cheek puffs, jaw motion, lip gestures, breath, or sip-and-puff - to control a computer, wheelchair, or XR system. Mouth interfaces serve …
- Mouth Joystick (Lip Joystick, Mouth-Operated Joystick)
- An assistive input device controlled by the user's mouth, lips, or tongue that functions as a pointer or gamepad joystick. The user moves a small stick held between the lips to direct cursor or on-scr…
- Muscle Fatigue (Motor fatigue)
- A decline in the capacity of a muscle or muscle group to generate force or sustain activity after prolonged or repeated exertion. In human-computer interaction, muscle fatigue is a central concern for…
- Muscle-Computer Interface (MCI (Muscle-Computer Interface), EMG Interface)
- An input modality in which signals generated by muscle contractions — typically recorded via surface electromyography (sEMG) sensors worn on the forearm or other muscle group — are interpreted by a co…
- Myoelectric Control
- The use of electromyographic (EMG) signals from voluntary muscle contractions as control inputs for external devices, most commonly powered upper-limb prostheses but also exoskeletons, wheelchairs, an…
- Neck Range of Motion (Cervical Range of Motion, Neck ROM)
- The extent to which a person can move their head and neck through three planes of rotation: flexion and extension (nodding forward and backward), axial rotation (turning left and right), and lateral b…