Gripdruk

Gripdruk, literally grip pressure, is a term used in ergonomics and rehabilitation to describe the force exerted by the hand and fingers on an object during grasp. In practice, it is often referred to as grip strength or grip force and is commonly expressed in newtons (N) or as contact pressure when normalized by the contact area. The concept focuses on the interaction at the hand–object interface, including how much load the hand can sustain without slipping or discomfort.

Measurement of gripdruk is typically performed with a hand grip dynamometer, a device that records the maximal squeeze force. Modern assessments may also employ multi-sensor gloves or pressure-mapped hand-interfaces to capture spatial distribution of pressure across the palm and digits. Protocols vary, but standardized posture, arm position, and repeated trials are commonly used to obtain reliable values.

Applications of gripdruk data span clinical, ergonomic, and sport contexts. Clinically, gripdruk helps assess hand function, track recovery after injury, or monitor progression in conditions such as arthritis or nerve impairment. In design and safety, it informs the selection of handles, grips, and tools to minimize fatigue and risk of repetitive strain. Normative data exist for different populations, enabling comparisons by age, sex, and occupation.

Several factors influence gripdruk, including hand size, skin condition, temperature, fatigue, pain, and neuromuscular status. Technique, training, and feedback can alter measured force, highlighting the importance of consistent testing conditions. Excessive grip pressure can increase fatigue and injury risk, while insufficient force can compromise control and task performance.

See also: grip strength, hand ergonomics, prosthetics, occupational safety, rehabilitation.