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  7. Cross Body Punch Jack

Exercise guide

Cross Body Punch Jack

  • Intermediate
  • Compound
  • Timed hold
  • Chest
  • Lower arms
  • Lower legs
  • Shoulders
  • Upper arms
  • Upper legs
  • Waist

This dynamic movement combines a jumping jack with a rotational punch to elevate the heart rate while targeting the obliques, shoulders, and lower body. It improves coordination and rotational power through a high-intensity, compound movement pattern.

Reviewed by the Crucible team · Updated June 2026

Watch the Cross Body Punch Jack demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Abs
  • Calves
  • Obliques
  • Quadriceps

Secondary

  • Biceps
  • Forearms
  • Rhomboids
  • Serratus anterior
  • Trapezius
  • Triceps

Equipment

  • Body weight

Setup

  1. Stand tall with your feet together and your hands in a 'guard' position near your chin.
  2. Engage your core and keep a slight bend in your knees to stay light on your feet.
  3. Position your elbows tucked close to your ribs.

How to do it

  1. Jump your feet out wide into a squat-like stance while simultaneously punching your right arm across your body to the left.
  2. Exhale as you punch, pivoting your right foot inward to allow your hips and torso to rotate fully.
  3. Inhale as you jump your feet back together and return your hand to the starting guard position.
  4. Repeat the movement immediately, jumping out and punching with the left arm across to the right side.

Form checklist

  • Land softly on the balls of your feet to minimize joint impact.
  • Keep your core braced throughout the rotation to protect your spine.
  • Ensure your punching arm extends fully but avoid snapping or locking the elbow joint.
  • Keep your chest up and avoid leaning forward during the jump.

Pro tips

  • Focus on the 'pull-back' of the punch just as much as the extension to engage the back and rear deltoids.
  • Sync your breath with the punch to maximize the engagement of your transverse abdominis and obliques.

Make it harder

  • Increase the tempo to a 'sprint' pace to maximize cardiovascular demand.
  • Hold light weights or wear weighted gloves to add resistance to the upper body movement.

Frequently asked

What muscles does the cross body punch jack work?
The cross body punch jack primarily targets the abs, calves, obliques, and quadriceps, and also works the biceps, forearms, rhomboids, serratus anterior, trapezius, and triceps as secondary muscles.
What equipment do you need for the cross body punch jack?
The cross body punch jack requires no equipment — just your body weight.
Is the cross body punch jack good for beginners?
The cross body punch jack is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Plank Walk SquatIntermediate · abs, calves, glutes, hamstrings, obliques, and quadriceps
  • Elevated Lunge T Spine RotationIntermediate · abs, glutes, hamstrings, obliques, and quadriceps
  • Knee Tap Sky ReachIntermediate · abs, calves, deltoids, obliques, and pectorals
  • Alternate Front Kick In Place With Arm CirclesBeginner · abs, calves, deltoids, and pectorals

Train this with a plan, not guesswork

Crucible builds the cross body punch jack into a precise program around your body, equipment, location, and time.

Download on the App Store