The inevitable cone cell again of agitation is trapezoidal

摘要

An agility ladder has a plurality of rungs including first and second rungs. A left link assembly has ends pivotally attached to left ends of the first and second rungs, and a right link assembly has ends pivotally attached to right ends of the first and second rungs. The left and right link assemblies each include first and second links having equal lengths, with the first and second links joined at a link pivot joint which allows the first and second links to form an angle between them of less than 180 degrees.