Normal and Abnormal Reach, Grasp and Manipulation Flashcards
Why is upper limb function important for ADLs?
Upper limb function is essential for fine motor skills needed for ADLs such as feeding, donning/doffing clothes.
What gross motor skills are related to upper limb function?
Gross motor skills such as crawling, walking, regaining balance, and protecting the body from injury during a fall.
Why is retraining upper extremity (UE) function important?
Due to the interrelation of UE control with both fine and gross motor skills, retraining UE function is crucial for PTs and OTs.
How do reach, grasp, and manipulation fit into the ICF framework?
They fit into the ICF under body structure and function (neuromusculoskeletal and movement-related functions), activities and participation (mobility, carrying, moving, and handling objects), and self-care.
What are the motor control principles involved in reach, grasp, and manipulation?
Control of reach, grasp, and manipulation requires both reflexive and voluntary movements and both feedback and feedforward processing.
What is the role of feedforward processing in motor control?
Feedforward processing uses vision to anticipate where to move the hand to catch a ball, activating biceps, triceps, and wrist muscles.
What is the role of feedback processing in motor control?
Feedback responses occur after the ball hits the hand, providing sensory information from the hand and eyes to compare planned and actual outputs.
What are the basic requirements of reach, grasp, and manipulation?
Visual regard, reaching, grasping, and manipulation.
What is visual regard?
Visual regard is locating the object in space and includes eye-head-trunk coordination.
What are smooth pursuits?
Smooth pursuits are following a slowly moving target with the eyes only.
What are saccades?
Saccades are rapid eye movements between two targets with the head stationary.
What is the Vestibulo-ocular Reflex (VOR)?
VOR is keeping an object visually stable while moving the head and body.
What is reaching?
Reaching is the transportation of the arm and hand in space, requiring postural support.
How do postural support demands vary in reaching?
Seated reaching requires less postural support than standing, which may require extensive activation of muscles in legs and trunk.
What is grasping?
Grasping is making contact with an object, including grip formation, grasp, and release.
What are the types of grips?
Power grip and precision grip.
What is a power grip?
A power grip involves finger and thumb pads directed toward the palm to transfer force to the object, using basic synergies of the arm.
What is a precision grip?
A precision grip involves forces directed between the fingers and thumb, allowing manipulation of the object relative to the hand and within the hand.
What is manipulation?
Manipulation is moving the object with grip-dependent dexterity and power.
What are musculoskeletal components contributing to reach, grasp, and manipulation?
Joint ROM, spinal flexibility, and postural support.