The Prone Walkout (also called an extended inchworm or inchworm walkout) is a full-body mobility and core strength exercise that takes the classic inchworm all the way to the floor — no stopping at plank.
Instead of pausing in a high plank position, you walk your hands out until your body is extended and your arms stretched as far as you can go without sagging at your hips or letting your lower back arch. Then you reverse the movement and walk back up. That full range of motion is what makes it harder.
What makes the Prone Walkout different from a regular Inchworm
Standard inchworms stop at the plank position and immediately reverse
The prone walkout continues as far as you can go, maximizing range of motion through the core, lats, and hip flexors
Key benefits
Trains the deep core through a full range of motion — similar to an ab wheel rollout
Stretches and strengthens the hamstrings, mobilizes the hip flexors
Improves spinal control and body awareness
Requires no equipment
Works as both a warm-up and a standalone core exercise
Muscles Worked
Target: core (abdominals, transverse abdominis)
Synergists: lats, hip flexors, hamstrings
Stabilizers: glutes, lower back (erector spinae), shoulders
Active joints: hip, shoulder
How to Do It
Stand tall with feet hip-width apart.
Hinge at the hips and place both hands flat on the floor in front of your feet.
Slowly walk your hands forward, away from your feet, continuing past the plank position.
Keep going as far as you can without your hips sagging or arching your lower back.
Pause briefly, then walk your hands back toward your feet, raising your hips as you go.
Once your hands are back near your feet, hinge back up to standing.
Keep your core braced throughout. The moment your lower back arches or your hips sag before you reach the floor, that’s your current end range. Work from there.
Move slowly. The slower you go, the more your core has to work. Rushing removes the challenge.
The return is the hardest part. Pressing back up from fully prone and walking the feet in requires real lat and core strength — don’t skip it.
Common Mistakes
Letting the hips sag early. Your lower back should stay neutral as long as possible. Collapsing into the lumbar spine on the way down puts unnecessary stress on the lower back.
Rushing through the walkout. Speed hides weakness here. Slow, controlled movement is the entire point.
Bending the knees too much. Keep legs as straight as your hamstring flexibility allows. A slight bend is fine — bent knees throughout reduces the stretch benefit significantly.
Losing tension on the way back. Many people brace well going down but go passive on the return. The walk back up is where a lot of the strength work happens.
Skipping the full extension. Stopping at plank and calling it done misses what makes this exercise unique. Work towards reaching a full prone position over time.
Sets and Reps
3 sets of 4–6 reps.
Rest 60–90 seconds between sets.
Focus on control and range of motion over speed. If the full prone walkout is too demanding, stop wherever you can maintain a neutral spine — and use that as your starting point to progress from.
How far can you walk your hands out before your lower back or shoulders start to complain? Let me know in the comments.
These are awesome your posts are great.
I did 2 sets of 4 today whew this works your body at a whole other level