Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Patent
1990-12-26
1992-04-14
Bahr, Robert
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
482136, A63B 21062
Patent
active
051043645
ABSTRACT:
Method for exercising or testing the rotary torso muscles in which the chest and shoulder area of the subject is secured against movement while the pelvis is also secured against movement to isolate the rotary torso muscles for testing or exercise. The subject while so secured and seated exerts a force with the rotary torso muscles to rotate a movement arm about a vertical axis against a resistance suitably chosen from a weight stack to be less than the maximum static strength of said muscles. The subject then returns to the starting position and repeats the exercise until the rotary torso muscles can no longer rotate the movement arm. The subject's static strength is measured by fixing the movement arm in several different angular positions and measuring the force exerted by said muscles on the movement arm in each of said positions.
REFERENCES:
patent: 3572700 (1971-03-01), Mastropaolo
patent: 4104918 (1978-08-01), Macoveanu et al.
patent: 4725055 (1988-02-01), Skowronski
patent: 4733860 (1988-03-01), Steffee
Peterson, J., Total Conditioning: A Case Study, 1975, p. 9.
Nautilus Instruction Manual, Mar. 1980, pp. 1 and 34.
Darden, E., The Nautilus Book, 1980, pp. 20-21 and 142-143.
Bahr Robert
Mouzavires William E.
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