Cardiovascular exercise ladder
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United States of America Patent
Stats
-
Jul 18, 1989
Grant Date -
N/A
app pub date -
Oct 1, 1987
filing date -
Oct 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention is a moving ladder exercise device 10 comprising a base 11, moving ladder assembly 12 and retarder assembly 14 using a microprocessor 15 to control retarder speed. The operation of the moving ladder requires the operator to climb the ladder thereby driving the ladder with his body weight. Maximum speed of the ladder assembly 12 cannot exceed the speed of the retarder assembly 14 due to the unidirectional clutch 33 and worm-drive assembly 32. Sensors 17 monitor heart rate of the operator and sensor 16 monitors ladder speed. Sensor output to microprocessor 15 provides feedback which allows the microprocessor to adjust retarder assembly speed so that the desired heart rate is reached and maintained.
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