Grasp / Grip
Grasp / Grip : The way we grip objects makes a big difference in how much effort we must use to hold and manipulate the object. There are two main types of grasps of interest. The power grasp / grip is one where we can wrap our fingers and thumb around the object as when picking up a suitcase handle or grasping a hammer. The other type of grasp is a pinch grasp / grip. There are in fact a number of different types of pinch grips. The one we most commonly think about is the one where we pick up / hold something by pinching it between the thumb and fingers (e.g. when picking up a pen from a flat surface). Other types of pinch grips are used: when holding / using a pen, when picking up a flat surface between the thumb and the out stretched fingers, when just wrapping the fingers around the edge of a flat surface and pinching it against the palm and base of the fingers, and when picking up something with a wide 'pinch' grip (i.e. fingers and thumb spread wide apart as in picking up the end of an apple juice can)
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