Exercise guide
Sitting Punch Knee Tap On A Padded Stool
- Beginner
- Compound
- Timed hold
- Shoulders
- Upper arms
- Waist
This seated compound movement builds core stability and coordination by combining a knee tuck with a cross-body punch to engage the obliques, deltoids, and hip flexors. It is an excellent low-impact option for developing functional core strength and upper body endurance.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Sit upright on the edge of a padded stool or step with feet flat on the floor, hip-width apart.
- Engage your core to maintain a tall, neutral spine without leaning back against a support.
- Bring your hands to a 'guard' position near your chin with elbows tucked in.
How to do it
- Simultaneously lift your right knee toward your chest while throwing a straight punch with your left hand toward the rising knee.
- Exhale forcefully on the punch and knee lift, rotating your torso slightly to engage the obliques.
- Inhale as you return the foot to the floor and the hand to the starting guard position with control.
- Alternate sides immediately, lifting the left knee and punching with the right hand at a steady, rhythmic tempo.
Form checklist
- Maintain a tall posture; do not round your lower back or slouch as the knee rises.
- Rotate through the midsection rather than just moving the arms across the body.
- Keep the planted foot firmly pressed into the floor to maintain stability on the stool.
- Ensure the punch is controlled and fully extended without locking the elbow joint.
Pro tips
- Think about 'shortening' the distance between your ribcage and hip bone during the rotation for maximum oblique activation.
- Snap the punch out and pull it back quickly to the guard position to increase the demand on the deltoids and triceps.
Make it harder
- Hold light dumbbells or weighted gloves to increase the resistance on the shoulders and arms.
- Perform the movement with a faster tempo to turn the exercise into a seated cardio-core interval.
Frequently asked
- What muscles does the sitting punch knee tap on a padded stool work?
- The sitting punch knee tap on a padded stool primarily targets the abs, deltoids, and obliques, and also works the biceps, forearms, and serratus anterior as secondary muscles.
- What equipment do you need for the sitting punch knee tap on a padded stool?
- The sitting punch knee tap on a padded stool requires no equipment — just your body weight.
- Is the sitting punch knee tap on a padded stool good for beginners?
- Yes. The sitting punch knee tap on a padded stool is a beginner-friendly movement and a strong foundation to build on.