Crab walking is a bodyweight exercise where you move across the floor face-up on your hands and feet, with your hips lifted off the ground. It looks exactly like it sounds: you scuttle sideways or forward like a crab. Despite being something most people haven’t done since elementary school gym class, it’s a surprisingly effective full-body exercise that builds strength, coordination, and stability without any equipment.
How to Do a Crab Walk
Start by sitting on the floor with your knees bent and your feet flat, about hip-width apart. Place your hands on the floor behind you with your fingers pointing toward your feet (or slightly outward, whichever feels more natural on your wrists). Press through your hands and feet to lift your hips off the ground so your torso forms a roughly flat surface, like a tabletop.
From this raised position, move by stepping one hand and the opposite foot simultaneously, then alternating. You can travel forward, backward, or sideways. The key is keeping your hips elevated throughout the movement. If your hips sag toward the floor, the exercise loses much of its benefit. Aim to keep your core tight and your chest open rather than letting your shoulders round forward.
Muscles Worked
The crab walk is genuinely a full-body movement, which is part of why it feels so tiring so quickly. Your triceps and shoulders bear a significant portion of your body weight and work constantly to keep you propped up. Your glutes and hamstrings fire to keep your hips elevated. Your core muscles, including the deep stabilizers along your spine, work isometrically the entire time to prevent your midsection from collapsing. Even your quadriceps engage to stabilize your knees.
The shoulder blades get particular attention. Moving in this position forces the muscles around your scapulae to stabilize and move through a range of motion they rarely experience in typical exercises like push-ups or overhead presses. For people who sit at desks all day, this type of scapular work can help counteract the rounded-shoulder posture that comes from hours of typing.
Why It Burns More Than You’d Expect
Crab walking is considerably more demanding than regular walking. A study published in Frontiers in Sports and Active Living compared quadrupedal movement training (which includes crab-style positions) to standard walking. The crab-specific segments of the workout averaged about 4.0 METs and 5.0 calories per minute. For context, walking at a self-selected comfortable pace came in at 4.3 METs and 5.1 calories per minute. The full quadrupedal session, which combined crab movements with other animal-style locomotion, averaged 5.4 METs and 6.7 calories per minute, putting it solidly in the moderate-intensity exercise category. Heart rates during these sessions reached about 63% of participants’ age-predicted maximum.
The high energy cost comes from the sheer number of muscles working simultaneously. Unlike running, which primarily loads the lower body, crab walking demands that your arms, core, and legs all contribute at once. Most people can only sustain it for 30 to 60 seconds before needing a break, which makes it well-suited for interval-style training.
Benefits Beyond Strength
The crab walk builds several physical qualities at once. Shoulder stability is a major one. Because your arms are supporting weight behind your body, the rotator cuff and surrounding musculature have to work in a position they’re rarely challenged in. Over time, this can improve resilience against shoulder injuries.
Coordination is another underrated benefit. Moving opposite hand and foot while keeping your hips elevated requires your brain to manage several things at once. This bilateral coordination, the ability to synchronize both sides of your body in different patterns, translates to better movement quality in sports and daily life. Occupational therapists use crab walking with children specifically to develop balance, body awareness, and coordination. In pediatric development, children are introduced to the movement as early as 24 to 36 months as a gross motor skill activity.
Core strength from the crab walk is primarily isometric, meaning your midsection holds steady against gravity rather than flexing and extending like in a crunch. This type of core work more closely mirrors how your core actually functions during real-world activities: bracing to protect your spine while your limbs move.
Common Mistakes
Wrist discomfort is the most frequent complaint. If pressing your palms flat with fingers pointed toward your feet bothers your wrists, try turning your hands slightly outward or making fists and pressing through your knuckles instead. Limited wrist extension is common in people who don’t regularly load their hands in this direction, and it usually improves with gradual exposure.
Letting the hips drop is the other big one. When fatigue sets in, people tend to sink their hips toward the ground, which shifts the load off the glutes and core and dumps it onto the wrists and lower back. If you can’t maintain a lifted hip position, shorten the distance you’re traveling or take more frequent breaks. Quality of position matters more than distance covered.
Variations to Try
The most basic progression is simply changing direction. Sideways crab walking is harder than forward because it demands more lateral hip stability. Backward movement changes the coordination pattern and shifts emphasis slightly toward the shoulders.
For a greater challenge, try the crab walk with a hip dip: lower your hips toward the ground between each step, then press back up. This adds a dynamic strength component to the glutes and triceps. You can also place a light object on your stomach (a small medicine ball or even a water bottle) to give yourself tactile feedback on whether your core is staying level.
More advanced athletes incorporate crab walking into movement flow sequences, transitioning between crab position and other ground-based positions like bear crawls or sit-throughs. These flows build on the coordination foundation and create a demanding cardio workout from bodyweight movement alone.
Who Should Use It
For younger athletes, the crab walk can function as a legitimate total-body strength exercise. For older or more trained athletes, it works well as part of a warm-up or as active recovery between heavier sets. It’s particularly useful for anyone dealing with poor shoulder mobility or weak hip extensors, since it addresses both in a single movement.
The fact that it requires zero equipment and very little space makes it practical for home workouts, hotel rooms, or outdoor training. Start with 3 to 4 sets of 20 to 30 feet of travel, or simply go for 30-second intervals if space is limited. Even a few minutes of crab walking will make it clear why this childhood gym class staple deserves a second look.