Exercise device

Details Exercise device Exercise device

1985-05-28

1986-12-16

Hafer, Robert A.

Undertaking

272144, 272145, A63B 7112

Patent

active

046291806

ABSTRACT:
The conventional exercise device for performing sit-ups includes a base and a strap for holding the feet of the user on the base. The number of consecutive sit-ups performed by an exerciser can be dramatically increased by using an exercise device including a frame, and footrests, calf supports, thigh supports and a seat on the frame, with each of such elements being adjustable in terms of position and inclination on the frame.

REFERENCES:
patent: 1143981 (1915-06-01), Macklin
patent: 1905092 (1933-04-01), Hardy
patent: 2240679 (1941-05-01), Stauffer
patent: 2733922 (1956-02-01), Diego
patent: 2759730 (1956-08-01), Berry
patent: 3286708 (1966-11-01), Gartner
patent: 3450132 (1969-06-01), Ragon et al.
patent: 4212458 (1980-07-01), Bizilia
patent: 4241915 (1980-12-01), Noble et al.
patent: 4534554 (1985-08-01), Miller

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