The present invention provides for a leg exerciser device offering a pair of footplates arranged for inward and outward reciprocal movement along a respective pair of rails and whereby each of the footplates is operatively connected by way of support arms to a variable number of weights so as to increase the resistance offered by apparatus during an exercise routine. The path of travel of each footplate and the configuration of each arm is such that the vertical distance moved by the weights is greater than the vertical distance moved by each footplate during its reciprocal motion along the rails so as to enhance the degree of work undertaking during an exercise routine.