Handgrip

The handgrip is the portion of a tool or device designed to be held by the hand, and can also refer to the act of grasping with the hand. In ergonomics and biomechanics, grip design affects the amount of force that can be applied, the precision of control, and user comfort. Different objects use different grip shapes, textures, and diameters.

In biomechanics, grips are categorized by contact patterns. A power grip involves the fingers wrapping around an object with the thumb opposing, producing a secure hold for lifting or throwing. A precision grip uses the fingertips and thumb for fine control, often used with small objects. There is also pinch grip, where the object is held between finger pads. Grip strength is the maximal isometric force generated by the hand when squeezing a dynamometer or similar device.

Grip strength is widely used as a clinical and research measure. It correlates with overall upper body strength, fitness, and health outcomes, and may predict disability risk in aging populations. It is assessed with standardized dynamometers and protocols. Changes in grip strength can reflect recovery from injury or effectiveness of treatment.

In training and sport, improving grip strength or endurance can enhance performance in weightlifting, rock climbing, rowing, and daily tasks. Common exercises include static holds, farmers walks, dead hangs, and pinch or plate pinches. Overuse injuries such as tendinopathy can occur with excessive loading.

Handgrips are integral to many tools and devices, including dumbbells, sports equipment, firearms, kitchen utensils, and vehicle controls. Ergonomic designs use textured surfaces, padding, and appropriate diameter to minimize slipping and fatigue. Material choices range from rubber and silicone to leather and plastic.