A handle structure for a chest pull includes a substantially ring-shaped handle (20) having a tapered passage (21) defined radially therethrough. A positioning device including a sphere member is (30) sized to be movably retained in the tapered passage (21). A shank (31) extends from the sphere member (30) and is connected to a collar member (32) which has an aperture (33) defined therethrough. A positioning member (ff 4,5) has a head (41) movably retained in the collar member (32) and a tail (42) extending transversely from a mediate point of the head (41). The tail (42) is positioned corresponding to the collar member (32) so as to position a resilient member (50) between the head (41) and the collar member (32). Alternatively (fig.6) the collar can have internal projections (36) to grip the resilient member (50).
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