Patent US 5,406,845

An instrument for measuring a muscular force particularly suited for the re-education and/or development of a muscle belonging to an upper and/or lower limb of the human body. A linearly displaceable element is coupled to a displacement device operable to continuously reciprocate the element with adjustable speed and travel. The displacement element is mounted such that a part of the human body can exert a muscular force (F1) upon the element. For example the element can be formed with one or more impressions to create an artificial climbing grip. The displacement device is coupled to a control center capable of, displaying a force threshold corresponding to a force of defined and variable intensity, operating the displacement device if the intensity of the force exerted on the element (F1) is greater than or equal to the displayed threshold value, measuring the force supplied, measuring the displacement, speed and travel of the element, measuring the duration of the force (F1).