Apparatus for exercising or testing rotary torso muscles

Details Apparatus for exercising or testing rotary torso muscles Apparatus for exercising or testing rotary torso muscles

1990-12-26

1992-02-18

Bahr, Robert

Undertaking

272118, 272144, 128 25R, A63B 2100

Patent

active

050887270

ABSTRACT:
Apparatus for exercising or testing the rotary torso muscles in whch 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: 4732380 (1988-03-01), Maag
patent: 4732381 (1988-03-01), Skowronski

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