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Apparatus for positive muscle training

  • US 4,921,244 A
  • Filed: 09/30/1988
  • Issued: 05/01/1990
  • Est. Priority Date: 09/30/1987
  • Status: Expired due to Fees
First Claim
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1. Apparatus for muscle training comprisingmeans for applying muscle force,means connected to the muscle force applying means for applying a force that counteracts the muscle force,a motor driven auxiliary force device connected to the muscle force applying means for applying an auxiliary force in aid of the muscle force, anda control device to actuate the auxiliary force device,the control device comprising sensor means for detecting speed of movement of the muscle force applying means, means connected to the sensor means and the auxiliary force device for actuating the auxiliary force device when the speed of movement of the muscle force applying means falls below a predetermined upper speed, and means for gently increasing the auxiliary force from zero value to a predetermined maximum value as long as the predetermined upper speed is not reached.

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