Clinimetrics: The vertical single leg hop test

Description: The vertical single leg hop test (VSLHT) is a functional performance outcome measuring maximum single leg jump height (cm).1 The VSLHT is intended to assess sport-related movements and musculoskeletal loading demands.1,2 To perform this test, an individual stands on one leg, executes a rapid countermovement to a self-selected depth, jumps as high as possible, and then lands on the same leg.2, 3, 4 Height can be measured using instrumentation (eg, contact timing mat)2, 3, 4 or the chalk on wall method. The VSLHT can be completed on both legs in 10 to 15 minutes, including a dynamic warm-up and practice trials (three to five). Typically, multiple maximum effort attempts (minimum of three) are performed with 20 to 30 seconds of rest between attempts.