As muscle spindles are involved in the sensation of position and movement of the body, we tested their involvement in the pathophysiology of idiopathic focal dystonia. Twenty patients with torticollis, nine with writer's cramp, two with blepharospasm and 16 healthy control subjects participated. In the first task, the blindfolded subject matched the position of the passively moved forearm with ...

Editorial Hand-arm vibration syndrome: a new clinical classification and an updated British standard guide for hand transmitted vibration Raynaud's phenomenon of occupational origin known in the 1950s as "the vibration syndrome" or "vibration induced white finger (VWF)" has, in the 1980s, been renamed "the hand-arm vibration syndrome ." This occupational hazard has, since 1890, afflicted operat...

vibration from the operation of industrial implements can be harmful to the human body. these implements, such as the power tiller or hand tractor often used to till rice in northern iran, can vibrate the entire body or one part, particularly the hands. in this research, the transmissibility and effects of vibration from a mitsubishi power tiller of 7.7 hp and 2400 rpm on the operator’s health ...

Objectives-To investigate the occurrence of disorders associated with the hand arm vibration syndrome in a large population of stone workers in Italy. The dose-response relation for vibration induced white finger (VWF) was also studied. Methods-The study population consisted of 570 quarry drillers and stonecarvers exposed to vibration and 258 control stone workers who performed only manual acti...

The picking robot arm is scheduled to complete picking tasks in the working space, to overcome the shaking vibration to improve the picking stability, its movement should follow specific consistence trajectory points. Usually we should give definite multiple feature picking points, map their inverse kinematics to the joint space, establish motion equation for the corresponding point in the join...

OBJECTIVES To determine the extent of hand transmitted vibration exposure problems, particularly hand-arm vibration syndrome (HAVS), among construction workers in Malaysia. METHODS A cross-sectional study was conducted on a construction site in Kuala Lumpur, Malaysia. 243 workers were recruited. Questionnaire interviews and hand examinations were administered to 194 respondents. Vibration mag...