Grasping or seizing; functional position of the hand. Grip can very, depending on the work the hand is doing. Grasping involves the entire hand, while pinching involves the thumb and a finger. Three types of grip have been identified: the hook grip, in which the fingers are curled toward the palm in order to grasp something: the power grip, in which the fingers are curled around an item with counter pressure coming from the thumb; and the precision grip, in which an object is grasped with the tips of one or more fingers and the thumb.
The hand possesses the capacity to firmly hold objects. It achieves this through various features, including an opposable thumb, which can touch each finger, specialized skin on the palm and fingers that provide adhesion, and a complex system of muscles, tendons, joints, and nerves enabling precise movements of the fingers. The hand is capable of two types of grips: grasping, which involves using the entire hand, and pinching, a precise hold using the thumb and one finger.
Conditions leading to muscular weakness or impaired sensation in the hands significantly diminish the gripping ability. These conditions comprise stroke or nerve injury, as well as disorders affecting the bones or joints of the hand or wrist, like arthritis or fractures.