Apparatus (10) for use in martial arts or fitness training, comprises a strike surface adapted to be kicked or punched by a user during training, and mounting means (12) adapted for removably securing the strike surface (11) to a structural element, such as a door frame. The mounting means (12) are shaped and dimensioned so as to receive the structural element, and comprise at least one inflatable bladder (16) adapted upon inflation to cause the mounting means (12) to grip the structural element.