A team from the IRSST wanted to document the impact of three types of furniture on upper limb muscle solicitation and posture. They wanted to determine whether the use of height-adjustable furniture providing support for forearms on the work surface would reduce muscle solicitation while minimizing the impact on upper limb posture. Eighteen volunteers, alternately using the keyboard and the mouse, participated in the furniture comparison. The result was that the use of a forearm support may be beneficial for the neck-shoulder region at the expense of the wrist-forearm region. An interesting alternative could therefore be office furniture that allows mouse work with the forearm alternatively supported and unsupported. This would allow an alternation between the greatest solicitations of the forearm muscles and neck-shoulder muscles, offering intermittent rest periods.