Linear movement, trunk muscle exercise machine

Details Linear movement, trunk muscle exercise machine Linear movement, trunk muscle exercise machine

1992-05-01

1994-04-05

Bahr, Robert

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

482135, 482142, 482145, 482908, A63B 2100

Patent

active

052999980

ABSTRACT:
An exercise machine for strengthening the trunk muscles has a horizontally-movable plunger that contacts the trunk of a user for linearly applying the force of a weight stack to resist trunk flexion and extension of a seated user. The plunger is attached to a carriage mounted for horizontal movement on rails. A cable connection between the carriage and the weight stack includes a cam for varying resistance with changes in position of the plunger. The backrest and seat are made optionally tiltable.

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