Learn how to exercise by doing the isometric V-sit. EXERCISE DETAILS:Primary Muscle Group: abs and obliquesSecondary Muscle Group: hip flexorsTraining Type: balance and stability, isometricLevel of Difficulty: 5Sport Specific: baseball, basketball, boxing, cycling, field hockey, football, golf, ice hockey, rowing, rugby, ski alpine, ski nordic, soccer, speed skating, swim breast stroke, swim butterfly, swim freestyle, tennis, volleyball, wrestlingPosition: face up, feet upMovement Variation:...