Grips Flashcards
Stage I of gripping requires what to open the hand fully?
Requires activation fo the wrist + finger extensor musculature as well as the hand intrinsics
Stage II involves what?
Fingers position around the object and closet to grasp the object, which requires activation fo the finger flexors as well as hand intrinsics
Stage III of gripping?
The force of the grasp is modified based on the shape, weight, fragility, and surface characteristics of the object
Stage IV of gripping includes?
Releasing the object by opening the hand, which requires activation of the extensors
__________ is used when a strong or forceful grip is need and involves stabilization of the object against the palm of the hand.
Power grip
What position are the hand and the fingers in during a power grip?
Fingers are in flexion and the wrist is in ulnar deviation and slight extension
What are the types of power grips?
- Cylindrical grasp
- Fist grasp
- Spherical grasp
- Hook grasp
_________charaterized by the entire hand wrapping around an objec with the thumb on one side and the four fingers on the opposite side of the object
Cylindrical grasp
What type of grasp is need for a soda can?
Cylindrical grasp
______Involves grasping around a narrower object so that the thumb and fingers overlap. (Used for smaller cylindrical objects)
Fist grasp
What grasp is demonstrated when holding a hammer?
Fist grasp
___________Characterized by the entire hand wrapping around a spherical object. The fingers are separated from one another and there is a greater amount of thumb opposition when compared to the cylindrical grasps.
Spherical grasp
What grasp is demonstrated by a pitcher grasping a baseball?
Spherical grasp
________characterized by use of the second and third interphalangeal joints (though it can involve all four fingers) to creat a hook to hold an objec.
Hook grasp
What muscles control at hook grasp?
Forearm flexors and extensor
What type of grasp may be demonstrated when grasping the handle of a pail or bucket?
Hook grasp
__________ is used when accurate and precise movements of the hand are needed.
Precision grip
What joints are involved in a precision grasp?
Metacarpophalangeal and interphalangeal joints on the radial side of the hand
What are the types of precision grips?
A. Digital prehension grip
B. Lateral prehension grip
C. Tip prehension grip
________(3-fingered pinch) is characterized by pulp to pul contact b/t the thumb, index finger, and middle finger. This type of grip may be used when holding a pencil
Digital prehension grip
______characterized by contact b/t the them and lateral side of the index finger. This type of grip may be sued when using a key.
Lateral prehension grip
_________ (i.e. tip pinch) is characterized by thumb opposition so that the tip of the thumb contacts the tip of another finger. This grip may be used when holding a needle.
Tip prehension grip
