Apparatus for testing physical condition of a self-propelled veh

Details Apparatus for testing physical condition of a self-propelled veh Apparatus for testing physical condition of a self-propelled veh

1982-03-08

1984-03-06

Howell, Kyle L.

Surgery

Truss

Pad

128707, 128782, 324166, 280289R, 350 99, A61B 502

Patent

active

044348010

ABSTRACT:
The physical condition of a bicycle rider is tested by monitoring the heart beat of the rider and the distance traversed during testing. A portable electronic instrument housing includes a digital computer responsive to signals indicative of the heart beat and travel distance, numerical quantities associated with physiological parameters of the rider, and a clock source to derive signals indicative of different physical activities of the rider. The distance signal is derived by mounting a permanent magnet in a reflector carried by wheel spokes of the bicycle. A first reed switch responds to flux from the permanent magnet to derive a pulse for each wheel revolution. A pulse for each revolution of the bicycle sprocket assembly, derived by a second permanent magnet-reed switch combination, is coupled to the computer and combined with the clock source to derive a signal indicative of number of sprocket assembly turns per unit length of time. A cueing signal to signal the cyclist when he should complete each pedal turn to assist in maintaining a constant forward speed, regardless of gear ratio, is derived by combining the pulses from the two reed switches with a desired forward speed signal.

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