A self-spotting apparatus for free-weights [2301] utilizes a pair of weight-responsive
engagement assemblies [1203A, 1203B] engaging a respective pair of
support columns [1207A, 1207B] to provide engageable support for
a free-weight bar [2311]. Auxiliary stops [2203A, 2203B] limit
the lowest position of the free-weight bar. The auxiliary stops are adjustable
by manual or electrical disengagement from the support columns. A control unit
[2302] provides disengagement logic for barbells and dumbbells.