Learn how to exercise by doing the jack knife and pushup on stability ball.
Primary Muscle Group: abs and obliques
Secondary Muscle Group: chest, hip flexors, pec minor, serratus anterior, triceps
Base Movement: leg raise, pushup
Equipment: stability ball
Training Type: balance and stability, weight training
Level of Difficulty: 7
Sport Specific: basketball, boxing, football, wrestling
Position: decline, face down
Movement Variation: bilateral
Plane of Motion: sagittal, transverse
Joint Action: elbow extension, hip flexion, shoulder girdle protraction, shoulder horizontal flexion
Grip: overhand - medium
Have an iPhone? Check out all 200+ new features coming in iOS 13.