Exercise guide
Kneeling Shoulder Tap
- Intermediate
- Compound
- Rep-based
- Lower arms
- Shoulders
- Upper arms
- Waist
The Kneeling Shoulder Tap is a foundational core stability exercise that develops anti-rotational strength and shoulder endurance. It challenges the abs and obliques to keep the torso still while shifting weight between the arms.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Equipment
Setup
- Start in a modified plank position with your knees on the floor and hands directly under your shoulders.
- Position your knees slightly wider than hip-width to create a stable base.
- Engage your core and squeeze your glutes to form a straight line from your head to your knees.
How to do it
- Exhale as you lift your right hand to tap your left shoulder, focusing on keeping your hips perfectly level.
- Inhale as you slowly return your right hand to the floor with control.
- Repeat the movement by lifting your left hand to tap your right shoulder.
- Continue alternating sides at a slow, controlled tempo, avoiding any rocking of the torso.
Form checklist
- Keep your hips and shoulders square to the ground at all times.
- Avoid shifting your weight excessively to one side as you lift your hand.
- Maintain a neutral neck by looking at a spot on the floor just ahead of your hands.
- Do not let your lower back sag or your hips pike upward.
Pro tips
- Imagine a glass of water resting on your lower back; your goal is to keep it from spilling.
- Actively push the floor away with your supporting arm to engage the serratus anterior and stabilize the shoulder blade.
Make it harder
- Bring your knees closer together to narrow your base of support and increase the stability challenge.
- Slow down the 'tap' phase, holding the hand on the shoulder for 2 seconds to maximize time under tension.
Frequently asked
- What muscles does the kneeling shoulder tap work?
- The kneeling shoulder tap primarily targets the abs, deltoids, and obliques, and also works the erector spinae, glutes, quadriceps, and serratus anterior as secondary muscles.
- What equipment do you need for the kneeling shoulder tap?
- The kneeling shoulder tap requires no equipment — just your body weight.
- Is the kneeling shoulder tap good for beginners?
- The kneeling shoulder tap is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.