A lightweight training aid is disclosed including selectively positioned posable appendages for use in various training exercises. The training aid may be formed of one or more separable and distinct portions including a head module, a torso module and a leg module, and combinations thereof. The head module and/or leg module may be releasably coupled to the torso module by interchangeable mounting arrangements. Appendages of the training aid may be posable, at least within a set range of motion, within any of a potentially infinite number of orientations. Methods of using such a training aid also are disclosed.