Measuring and testing – Muscular force
Patent
1975-08-11
1976-12-07
Goldstein, Herbert
Measuring and testing
Muscular force
340384E, G01L 502
Patent
active
039954927
ABSTRACT:
An isometric exerciser formed by a pair of spaced bodies joined together by a link associated with a transducer and ensheathed in a cover to define a structure having a generally oblong configuration. By grasping the ends of the exerciser in his hands, a user is able to exert a compressive or tension force on the transducer. The transducer converts this force into a corresponding electrical value that is applied to a pulse generator coupled to a loudspeaker housed within the structure, thereby producing a train of audible pulses whose repetition rate, tone and amplitude depend on the applied force. Thus the user receives a continuous audible feedback, permitting him to adjust the applied force to a desired level. By means of a counter responsive to the output of the pulse generator, one is able to score the user's performance.
REFERENCES:
patent: 1623869 (1927-04-01), Giraldi
patent: 3349621 (1967-10-01), Mullen
patent: 3563097 (1971-02-01), Roggenstein et al.
patent: 3672219 (1972-06-01), Patten
patent: 3689832 (1972-09-01), Leto
patent: 3742491 (1973-06-01), Lawson
patent: 3754438 (1973-08-01), Matson
patent: 3864966 (1975-02-01), Seitz
patent: 3872476 (1975-03-01), Hoerz et al.
Wilkie, The Relation Between Force & Velocity in Human Muscle, in Journal or Physiology, vol. 110-111, 1949-1950, p. 270.
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