Abdominal exercise machine with curved back support

Details Abdominal exercise machine with curved back support Abdominal exercise machine with curved back support

1994-07-15

1998-09-08

Donnelly, Jerome

Exercise devices

Support for entire body of user

482907, 482148, 297382, A61F 500

Patent

active

058038841

ABSTRACT:
The present invention provides an abdominal exercise apparatus having an adjustable curved back support. The machine is used to produce an exercise that isolates, stretches, works, and develops the muscles of the abdominal wall (abs). The machine positions and supports the body to prevent it from unfolding at the hips, eliminating use of the thigh flexors and pain they cause from the exercise. Then it arches the back, which in turn extends the abs fully. In a preferred embodiment, the tension of extension of the abs is adjustable through positioning of back support.

REFERENCES:
patent: 2117821 (1938-03-01), Parker
patent: 3762769 (1973-10-01), Poschl
patent: 4867142 (1989-09-01), Jones
patent: 5100131 (1992-03-01), Fong

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