Device for abdominal muscle exercise

Details Device for abdominal muscle exercise Device for abdominal muscle exercise

1995-08-08

1998-03-03

Reichard, Lynne A.

Exercise devices

Sit up device

482142, 482907, A63B 2600

Patent

active

057229236

ABSTRACT:
An exercise device primarily for performing the so-called sit-up exercise is provided with a pivotably adjustable back-rest and a longitudinally adjustable hip-rest. The combined adjustability of the back- and hip-rests gives proper support to the back of a user during exercise and minimize the risk of back injuries notwithstanding that the spine sizes of different individuals depend on their physical particulars.

REFERENCES:
patent: 2264046 (1941-11-01), McClellan
patent: 2475003 (1949-07-01), Black
patent: 3771518 (1973-11-01), Greissing
patent: 4347840 (1982-09-01), Adams
patent: 4520800 (1985-06-01), Kowalski
patent: 4582319 (1986-04-01), Luna
patent: 4650187 (1987-03-01), Chenera
patent: 4752067 (1988-06-01), Colonello
patent: 4856497 (1989-08-01), Westphal
patent: 5120052 (1992-06-01), Evans

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