Exercise devices – Sit up device
Patent
1997-02-18
1999-02-16
Donnelly, Jerome W.
Exercise devices
Sit up device
482142, 482123, A63B 2108
Patent
active
058714251
ABSTRACT:
An exercise device for exercising all of the major muscles comprising the upper and lower abdomen and back, while avoiding undue stress on the lumbar and cervical spinal discs and the muscles comprising the lower back and hip flexors. The device provides rigid upper and lower back supports which are pivotally joined at a point which restricts flexure of the spine to the T10-L1 region. Resistance means attach to the pivotal portions of the device to allow adjustable resistance to exercise motions.
REFERENCES:
patent: 1539214 (1925-05-01), Shockey
patent: 2152431 (1939-03-01), Jensen
patent: 2690791 (1954-10-01), Malco
patent: 2724428 (1955-11-01), Sellner
patent: 2733922 (1956-02-01), Diego
patent: 3015330 (1962-01-01), Linstrom
patent: 3315666 (1967-04-01), Sellner
patent: 3378259 (1968-04-01), Kupchinski
patent: 3716230 (1973-02-01), Mark
patent: 4372553 (1983-02-01), Hatfield
patent: 4405128 (1983-09-01), Mclaughlin et al.
patent: 4489936 (1984-12-01), Dal Monte
patent: 4575077 (1986-03-01), Osborne et al.
patent: 4729562 (1988-03-01), Pipasik
patent: 4750741 (1988-06-01), Smolanovich
patent: 5120052 (1992-06-01), Evans
patent: 5419750 (1995-05-01), Steinmetz
patent: 5492520 (1996-02-01), Brown
patent: 5498222 (1996-03-01), Hur
patent: 5499956 (1996-03-01), Habing et al.
patent: 5531658 (1996-07-01), Liao
Donnelly Jerome W.
Kor-One, Ltd.
Titus John D.
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