Inchworm
The Inchworm is a flowing bodyweight movement — you hinge at the hips, walk your hands out to a plank position, then walk them back and return to standing. This sequence combines a hamstring stretch with core and shoulder engagement, all without any equipment.
You should feel a stretch through the back of the legs during the forward fold, followed by steady effort through the arms and core while holding the plank. Proper bracing through the midsection during bodyweight movements involves managing intra-abdominal pressure, which supports spinal stability even without external load (Hackett & Chow, 2013). Keep your legs as straight as comfortable and move your hands with control.
The Inchworm fits naturally into warm-ups, mobility sessions, or recovery workouts. Bodyweight exercises that combine movement patterns serve as effective preparation for more demanding training while also contributing to overall conditioning (Wewege et al., 2022). To make it easier, bend the knees more during the fold. To increase the challenge, pause in the plank or slow the entire movement for greater control.
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Technique and form
How to perform the Inchworm
- Stand tall with your feet hip-width apart, arms at your sides, and maintain a neutral spine position.
- Hinge at your hips and bend forward, placing your palms flat on the floor in front of your feet while keeping your legs as straight as possible.
- Walk your hands forward away from your feet, keeping your core engaged and maintaining a straight line from head to heels as you move into a high plank position.
- Pause briefly in the high plank position, ensuring your shoulders are stacked over your wrists and your body forms a straight line.
- Begin walking your hands back toward your feet in small, controlled movements while keeping your legs straight or with minimal bend in the knees.
- As your hands approach your feet, allow your hips to rise upward, transitioning into a forward fold position.
- Once your hands reach your feet, pause briefly in the forward fold, breathing deeply while maintaining tension in your hamstrings.
- Slowly roll up to the starting position, stacking one vertebra at a time until you return to standing, and exhale at the top.
Important information
- Keep your core engaged throughout the entire movement to protect your lower back and maintain proper form.
- Take small, controlled steps with your hands rather than reaching too far, which helps maintain stability and proper alignment.
- If you feel excessive hamstring tightness, slightly bend your knees to prevent straining the muscles while still getting an effective stretch.
- Focus on creating a straight line from head to heels during the plank portion, avoiding sagging hips or raised buttocks.
Common Mistakes: Inchworm
Benefits of the Inchworm
Muscles Worked: Inchworm
The Inchworm is a mobility exercise that actively mobilizes the core and front shoulders. Here is how each area is involved.
Primary areas mobilized
Abs — The movement actively mobilizes your core, improving joint range of motion and neuromuscular control through the full movement pattern.
Front Delts — The movement actively mobilizes your front shoulders, improving joint range of motion and neuromuscular control through the full movement pattern.
The Inchworm targets 2 primary areas to improve movement quality and joint health.
FAQ - Inchworm
The Inchworm primarily engages your core muscles (especially the abdominals) and front deltoids (shoulders). It also activates your hamstrings, calves, lower back, and chest while improving mobility throughout your shoulders, spine, hips, and ankles.
If you're new to the exercise, bend your knees slightly during the forward fold to reduce hamstring strain. You can also take smaller steps with your hands and perform fewer repetitions until you build strength and flexibility. As you progress, gradually straighten your legs and increase the distance covered.
The three most common mistakes are sagging in the lower back during the plank position, rushing through the movement without control, and not walking the hands out far enough. Focus on maintaining a neutral spine, moving with deliberate control, and creating a full-length plank position with your hands directly under your shoulders.
Inchworms are versatile enough to include 2-4 times weekly, either as part of your warm-up routine (6-8 repetitions) or within your HIIT circuits (10-12 repetitions). They're gentle enough for frequent use while still providing meaningful benefits for mobility and core strength.
Yes, you can intensify the exercise by adding a push-up at the plank position, incorporating a jump when returning to standing position, or performing it with one leg raised during the plank phase. These variations increase the core stability demands and cardiovascular intensity of the movement.
Scientific References
Hackett DA, Chow CM · J Strength Cond Res (2013)
Wewege MA, Desai I, Honey C, et al. · Sports Med (2022)
Ho SS, Dhaliwal SS, Hills AP, et al. · BMC Public Health (2012)
Sources are peer-reviewed academic publications from PubMed.
Inchworm
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