Dumbbell V-Sit Cross Jab
The Dumbbell V-Sit Cross Jab is a dynamic core exercise that combines an isometric V-sit hold with weighted rotational punches. This movement targets the upper abs and obliques while improving balance, coordination, and core stability.
By analyzing your previous core training volume and hip flexor recovery status, the AI determines the optimal weight and duration for your sets to maximize abdominal engagement without straining your lower back. It tracks your RPE to detect when stability is failing, ensuring you maintain the intensity needed for core development while avoiding injury. Over time, the app learns your endurance limits and progressively adjusts the load to keep challenging your obliques and stabilizers.
Form Cues
- Sit on your sit bones with knees bent and feet lifted off the floor.
- Lean your torso back to a 45-degree angle while keeping your chest proud.
- Exhale as you punch across your body, rotating your shoulders with the movement.
- Keep your core tight and spine neutral throughout the set.
- Retract the non-punching arm back to your ribs with control.
- Don't round your lower back or slouch your shoulders.
- Don't let your feet touch the ground unless necessary for balance.
- Don't swing the dumbbells wildly using momentum.
- Don't hold your breath; breathe rhythmically with each punch.
- Don't allow your legs to sway excessively side-to-side.
Common Mistakes
- Rounding the lumbar spine (slouching)
- Using weights that are too heavy
- Relying on arm movement instead of torso rotation
- Holding breath during the exertion
- letting the chin drop to the chest
Muscles Worked
This exercise primarily targets the rectus abdominis through the isometric V-sit hold, building deep core stability and endurance. Simultaneously, the cross-body punching motion heavily recruits the internal and external obliques, while the anterior deltoids and hip flexors work to stabilize the arms and legs throughout the movement.
Primary
Secondary
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