Grip force monitoring on the hand: Manugraphy system versus Jamar dynamometer.

Introduction: For clinical grip force assessment, the Jamar dynamometer is a wide accepted tool. Users have to be aware that this method does not represent all grip efforts applied. The Manugraphy system is a tool that measure total grip force as well as identify load distribution patterns of the hand while gripping cylinders wrapped with calibrated capacitive matrix sensor mats.

Intra-articular pressure measurement in the radioulnocarpal joint using a novel sensor: in vitro and in vivo results.

Purpose: To determine the amount and distribution of forces transmitted across the human radioulnocarpal joint under physiologic conditions in vivo. We performed an in vitro validation of a specifically developed capacitive pressure-sensor device and an in vivo measurement of force transmission and pressure distribution at the radioulnocarpal joint in a healthy volunteer.

Methods: A new capacitive pressure-sensor device was adapted for intra-articular pressure measurement in the human radioulnocarpal joint.