Dumbbell V-Sit Cross Jab

Dumbbell V-Sit Cross Jab trains controlled trunk rotation or lateral flexion without using momentum.

Primary muscle

Abs

Primary musclesInternal and external obliques

Secondary musclesTransverse abdominis, Rectus abdominis, Erector spinae, Gluteal muscles

Equipment

Dumbbells

How to perform Dumbbell V-Sit Cross Jab

Follow the sequence in order, paying attention to the starting position, movement path, and finish described in each step.

Sit with the torso leaned back, chest open, and feet either lightly supported or raised; hold the dumbbells near the shoulders.
Brace the abdominals and choose weights light enough that the torso angle and leg position do not change.
Brace the abdominals and punch one dumbbell across the body while rotating through the upper trunk.
Return the dumbbell to guard before punching across with the other arm; keep the legs and pelvis still.
Alternate sides at a controlled pace and end the set when the V-sit position can no longer be held.

Keep the knees aligned; if the hips turn with the rib cage, pivot the feet instead of twisting through planted knees.

Move through a smooth trunk range rather than throwing the arms or load from side to side.

Stop before the resistance drags the ribs away from a stable pelvis.

Maintain the same seated trunk angle throughout both directions.

Twisting through the knees: Keep the knees aligned; if the hips turn with the rib cage, pivot the feet instead of twisting through planted knees.
Forcing end range: Stop before the resistance drags the ribs away from a stable pelvis.
Stop when the exercise produces sharp, catching, radiating, or increasing joint pain rather than the expected muscular effort.
Alternative Pallof press: Train the trunk to resist rotation before producing a larger rotational range.

Place Dumbbell V-Sit Cross Jab after the main compound lifts, in a focused core block, or beside an exercise that does not require a fresh trunk.

Use two to four times per week while accounting for trunk work already supplied by squats, hinges, carries, and overhead lifting.

Goal	Sets	Reps or time	Rest	Effort and execution
Control / technique	2–3	5–8 reps	45–75 sec	Stop well before position changes
Strength / endurance	2–4	8–15 reps	60–90 sec	Stop while 1–3 good-form reps are still possible

Use Dumbbell V-Sit Cross Jab after Barbell Back Squats or Deadlifts when the main strength work is complete.
Pair it with Dead Bug or Cable Pallof Press to train the core through complementary movement patterns.

Scale the movement