Patent ID: 8491446

Claim:
An exercise device including: a) an elastic member having a member male connector thereon; b) a grasping loop having a loop female connector thereon, the loop female connector being configured to removably and replaceably receive the member male connector in complementary fashion, whereby the grasping loop can be installed on the elastic member to allow a user to act on the grasping loop to stretch the elastic member; and c) a sensor body having: 1) a force sensor; 2) a sensor body male connector configured to be removably and replaceably received within the loop female connector in complementary fashion, whereby the grasping loop can be installed on the sensor body to allow a user to act on the grasping loop to exert force on the sensor body; and 3) a sensor body female connector configured to removably and replaceably receive the member male connector in complementary fashion, whereby the sensor body can be installed on the elastic member to allow a user to act on the elastic member to exert force on the sensor body; the sensor body being removably and replaceably installable between the grasping loop and elastic member, whereby the force sensor senses force exerted between the grasping loop and the elastic member.