Dumbbell with means to detect and show physical conditions of the operator

Abstract

A dumbbell includes a dumbbell body and an instrument, the instrument having a main unit fixedly mounted on the surface of the dumbbell body and sensor means fixedly mounted on the dumbbell body and electrically connected to the main unit, wherein the sensor means detects the number of cycles within which the operator moves the dumbbell body up and down as well as the heart beat of the operator for enabling the main unit to calculate the amount of heat energy consumed by the operator during exercising when the operator presses the thumb on the sensor means.

What the invention claimed is:  
     
         1 . A dumbbell comprising a dumbbell body, and an instrument fixedly mounted on said dumbbell body, said instrument comprising a main unit fixedly mounted on said dumbbell body, and sensor means fixedly mounted on said dumbbell body and electrically connected to said main unit for pressing by the operator's thumb and adapted to detect the number of cycles within which the operator moves said dumbbell body up and down as well as the heart beat of the operator for enabling said main unit to calculate the amount of heat energy consumed by the operator during exercising when the operator operates the dumbbell and presses the thumb on said sensor means.  
     
     
         2 . The dumbbell of  claim 1  wherein said main unit is fixedly mounted on a handgrip of said dumbbell body, comprising a LED display, a set of entry keys, and a control circuit board.  
     
     
         3 . The dumbbell of  claim 2  wherein said dumbbell body comprises a first receiving chamber, which receives the main unit of said instrument, and a second receiving chamber disposed in a handgrip thereof, which receives said sensor means.