IGRIP - Isometric Exercise Equipment Muscle, Muscle Fiber, Muscle Contraction, Muscle Strength,Muscle Endurance,Muscle Tone,Isometrics,Isometric Exercise,Isometric Contraction,Isometric Exercise Equipment,Exercise,Exercise Equipment,Body Building,Cross Training,Strength Conditioning,Resistance Training, Pumping Iron,Weight Lifting,Bench Press,Working out,Physical Activity,Fitness,Fitness Therapy,Physical Fitness,Senior Fitness,Rehabilitation,Rehabilitation Equipment,Rehabilitation Exercises, Osteoporosis,Lean Body Mass,Palates Exercise,Yoga Exercise,Marshal Arts Exercise,Ripped,Abs,Biceps,Chest Muscles,Lats,Triceps,Pecs The IGRIP is a portable electronic exercise device that measures the amount of applied force (both push and pull), and the duration of time of the isometric exercise.