Portable jump training apparatus

A portable jump training apparatus (50) for releasably securing to an external mounting surface (10) to measure an athlete's vertical leap, comprising:

• (i) a jump measurement device (100) having a plurality of vanes (110) rotatably mounted to a vane mounting post (120), a frame member (130) having a vertical post (132) and at least one support arm (134), wherein the vane mounting post (120) is joined to the at least one support arm (134);
• (ii) a height adjustment post (200) joined to the vertical post (132), such that the height adjustment post (200) is spaced apart from the vertical post (132) a post separation distance (136);
• (iii) an external surface mount (300) having at least one adjustable gripping device (310) to releasably secure the external surface mount (300) to the external mounting surface (10), and a translation guide (320) formed as a tube with a tube wall thickness (324), wherein the translation guide (320) is configured to slidably receive the height adjustment post (200) such that the jump measurement device (100) may translate adjacent an outer surface of the translation guide (320) as the height adjustment post (200) translates within the translation guide (320) so that the position of the jump measurement device (100) and the height adjustment post (200) may be adjusted with respect to the stationary external surface mount (300);
• and
• (iv) a height adjustment lock (400) for releasably locking the height adjustment post (200) within the translation guide (320) to lock the jump measurement device (100) at a desired height.