Effects of wrist posture and stabilization on precision grip force production and muscle activation patterns
Werner Popp, Lea Richner, Olivier Lambercy, Camila Shirota, Alexander J. Barry, Roger Gassert, Derek G. Kamper
Abstract
We explored the interdependence between wrist and fingers by assessing the influence of wrist posture and external stabilization on precision grip force generation. We found that maximum precision grip force occurred at an extended wrist posture and was 20% greater when the wrist was Externally Stabilized. The latter resulted from amplification of muscle activation patterns from the Self-Stabilized condition rather than adoption of new patterns exploiting external wrist stabilization.
Topics & Concepts
WristPhysical medicine and rehabilitationComputer scienceMedicineAnatomyMotor Control and AdaptationMuscle activation and electromyography studiesTactile and Sensory Interactions