Undertaking
Patent
1981-12-11
1984-06-26
Apley, Richard J.
Undertaking
272134, 272143, A63B 2106
Patent
active
044562454
ABSTRACT:
Apparatus and method for exercising torso rotation muscles of a person and in which a user's body is supported in a generally upright seated position, upper and lower torso portions are engaged so as to restrict movement of the user's body to rotary movement of the upper torso relative to the lower torso about an axis extending longitudinally of the user's body, and force is imposed to resist such movement.
REFERENCES:
patent: 4149714 (1979-04-01), Lambert
patent: 4296924 (1981-10-01), Anzaldua et al.
Apley Richard J.
Browne William R.
Nautilus Sports Medical Industries, Inc.
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