NOVELTY - The device (10) has a weighted object attached directly or indirectly to a flexible strap (30) such that the weighted object acts as a load on a set of muscles used to lift the device. The strap enables the conversion of the weighted object from a stable load to an unstable load. A bag (20) attaches directly or indirectly to the strap and includes another strap, accommodates the weighted object and includes another weighted object. The load is enabled to be varied by varying the length of the strap, adding another strap and changing the weighted object.    USE - Strength, stability and motor exercise control training device for performing rehabilitation, yoga, tai-chi, pilates, strength training, physical fitness or physical conditioning in a group or class setting with a teacher/instructor/therapist giving instruction and feedback for proprioceptive and resistance training of stabilizing muscles through entire kinetic chain system in supine body position, prone or side lying body position, sitting body position, kneeling or half kneeling body position, double leg standing body position, alternate leg standing body position, single leg standing body position. Can also be used for one-on-one setting with a single client/patient and teacher/instructor/therapist giving instruction and feedback.    ADVANTAGE - The device improves proprioception through training, so that improvements are made in engaging the stabilizing muscles, thus leading to greater joint control and reducing likelihood of joint injury and other injuries throughout the kinetic chain, and hence enhancing the physical benefits for the user. The load is distributed across the straps, thus ensuring that the device is utilized for training exercises that involve more than one limb and/or more than one person.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a strength, stability and motor exercise control training method    (2) a strength, stability and motor exercise control training system comprising an exercise program.    DESCRIPTION OF DRAWING(S) - The drawing shows a front view of strength, stability and motor exercise control training device.    Strength, stability and motor exercise control training device (10)    Bag (20)    Strap (30)    Cover (40)    Closing unit (50)