Knee-Tuck Side-Plank
Strengthen your core with the Knee-Tuck Side-Plank! This challenging exercise targets your obliques for a tighter, stronger midsection.
The Knee-Tuck Side-Plank mainly works the core, with help from the back. No equipment needed: it uses just your bodyweight.
Optional Equipment

Knee-Tuck Side-Plank Muscles Worked
Primary
Abdominals (rectus abdominis); Obliques
Secondary
Deep Core (transverse abdominis); Boxer Muscle (serratus anterior)
Knee-Tuck Side-Plank Variations and Alternatives
How to do the Knee-Tuck Side-Plank
Begin in a side plank position on your right side, with your right elbow directly under your shoulder and legs stacked. Extend your left arm overhead to create a straight line from your left fingers to your left toes.
Engage your abdominals and obliques to maintain a straight, rigid body line. Your hips should be elevated off the ground, forming a diagonal line from head to feet.
While holding the side plank, exhale and draw your left knee toward your chest, simultaneously bringing your left elbow down to meet the knee. Perform this in a controlled manner without losing the plank alignment.
Inhale and extend your left leg and arm back to the starting position.
Complete the desired number of repetitions on one side before switching to plank on your left side and repeating the movement with your right arm and right knee.
Maintain a steady pace that allows you to sustain proper form throughout the exercise.
To increase difficulty, you may add a pause at the knee tuck or increase the duration of each set.
Ensure you keep your movements controlled, and your core continuously engaged. If you experience any pain, especially in the lower back, stop immediately and reassess your form.
---
Knee-Tuck Side-Plank FAQs
What muscles does the Knee-Tuck Side-Plank work?
The Knee-Tuck Side-Plank mainly works the core, with help from the back. The main muscles are the rectus abdominis and obliques.
What equipment do you need for the Knee-Tuck Side-Plank?
None. The Knee-Tuck Side-Plank is a bodyweight exercise, so you can do it anywhere.
What are some Knee-Tuck Side-Plank variations and alternatives?
Similar exercises include the Criss-Cross Knee-Tuck, Elbow to Decline Knee Side-Plank, Elbow to Knee Crunch Side-Plank and Elevated Knee-Tuck V.
Training calculators
Work out the numbers behind your training before your next session.





