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HK 253 Final Exam Questions With Verified
What are the four components of manual movement? - answer✔✔visually locate a target,
transport arm and hand, grasp the object, and then manipulate the object
What are the stages of reaching? - answer✔✔prereaching, visually guided reaching, and visually
elicited reaching
Characteristics of prereaching - answer✔✔vision not used to guide hands to object, no
corrections made mid-course, do not preshape hand, and rarely contact the target objects
Characteristics of visually guided reaching - answer✔✔use vision to grasp, make corrections,
adapt reach in response to a distorted visual field
Characteristics of visually elicited reaching - answer✔✔No longer uses vision of hand to guide
reach, only minor correction needed, late adjustments when reaching for the target in a visually
distorted view
Movement unit - answer✔✔a correction made during a reach
Adults when performing a precise action have - answer✔✔a longer decelerative phase
adults when performing a non-precise action have - answer✔✔a greater peak velocity
what are the basic grasps in infancy - answer✔✔palmar and pincer
Palmar Grasp - answer✔✔starts at 4 months, involves the whole hands, and is used to grasp for
everything
Pincer Grasp - answer✔✔9-10 months, uses the thumb and index finger to pick up smaller things
External factors that can impacts handwriting performance - answer✔✔sitting position, type of
writing implement, chair and desk configuration, environmental factors, type of instruction, and
amount of practice
what are the three stages of holding a writing implement - answer✔✔supinate, pronate, static
tripod, dynamic tripod
Supinate grasp - answer✔✔palm faces up with the whole fist around the utensil. Movement is
controlled by the shoulder
HK 253 Final Exam Questions With Verified
What are the four components of manual movement? - answer✔✔visually locate a target,
transport arm and hand, grasp the object, and then manipulate the object
What are the stages of reaching? - answer✔✔prereaching, visually guided reaching, and visually
elicited reaching
Characteristics of prereaching - answer✔✔vision not used to guide hands to object, no
corrections made mid-course, do not preshape hand, and rarely contact the target objects
Characteristics of visually guided reaching - answer✔✔use vision to grasp, make corrections,
adapt reach in response to a distorted visual field
Characteristics of visually elicited reaching - answer✔✔No longer uses vision of hand to guide
reach, only minor correction needed, late adjustments when reaching for the target in a visually
distorted view
Movement unit - answer✔✔a correction made during a reach
Adults when performing a precise action have - answer✔✔a longer decelerative phase
adults when performing a non-precise action have - answer✔✔a greater peak velocity
what are the basic grasps in infancy - answer✔✔palmar and pincer
Palmar Grasp - answer✔✔starts at 4 months, involves the whole hands, and is used to grasp for
everything
Pincer Grasp - answer✔✔9-10 months, uses the thumb and index finger to pick up smaller things
External factors that can impacts handwriting performance - answer✔✔sitting position, type of
writing implement, chair and desk configuration, environmental factors, type of instruction, and
amount of practice
what are the three stages of holding a writing implement - answer✔✔supinate, pronate, static
tripod, dynamic tripod
Supinate grasp - answer✔✔palm faces up with the whole fist around the utensil. Movement is
controlled by the shoulder
