# Bodyweight Single Leg Deadlift Against Ball - Canonical: https://fitwill.app/exercise/11087/bodyweight-single-leg-deadlift-against-ball/ - Media ID: 11087 - Primary muscle: Hamstrings - Body part: Legs - Equipment: Stability Ball - Video: https://fitwill.app/videos/11087/bodyweight-single-leg-deadlift-against-ball.mp4 ## Description The Bodyweight Single Leg Deadlift Against Ball is a balance-focused hinge variation where your rear foot rests on a stability ball behind you while you stand on one leg and fold forward from the hips. The ball acts as a moving support point, so your standing leg, hips, and trunk have to control both your torso and the rolling leg throughout every rep. It looks similar to a Bulgarian split squat from the outside, but the action is a hip hinge, not a knee bend. This movement is useful for anyone who wants single-leg strength without loading the spine with weight. It targets the hamstrings and glutes of the standing leg as they work to control the forward fold and pull you back upright, while the lower back and deep core stabilize the torso. Because the rear foot is on an unstable, rolling surface, the ankle stabilizers and outer hip muscles of the support leg also get plenty of quiet but demanding work. The setup matters more here than in a regular single leg deadlift. The ball needs to be positioned far enough behind you that your rear leg can extend as you hinge, but close enough that your foot stays in contact with it. Place it against a wall if it tends to roll away. The ball's main job is to give your back leg a reference point so you can concentrate on hinging cleanly instead of fighting to keep that leg floating in mid-air. To execute it well, think of pushing your hips straight back rather than bending down. Your standing knee stays softly bent, your back stays long and neutral, and your chest travels forward and down as your rear leg trails behind on the ball. Stop when you feel a strong stretch in the standing hamstring or when your torso approaches parallel to the floor, then drive through the mid-foot to stand back up. Squeezing the glute of the working leg at the top finishes each rep. This exercise fits well into warm-ups for heavier lower body days, rehabilitation-friendly single-leg progressions, and home workouts where no dumbbells are available. It is also a practical teaching tool: if your balance fails during a loaded single leg deadlift, this version lets you build the hinge pattern and hip stability first. If you feel the work shifting into your lower back, shorten the range and hinge less deeply until your hamstrings and glutes take over the movement. ## Instructions 1. Place a stability ball behind you and position it against a wall so it cannot roll away during the set. 2. Stand tall on your right leg with a soft knee, and rest the top of your left foot or shin on the ball behind you, leaving about two to three feet between your standing foot and the ball. 3. Clasp your hands together in front of your chest and brace your abs as if preparing for a light push to the stomach. 4. Shift your weight into the mid-foot of the standing leg and keep your standing knee softly bent for the entire rep. 5. Push your hips straight back and hinge forward, letting your torso lower toward the floor while your left leg trails behind and rolls on the ball. 6. Keep your back flat and your hips square to the front; stop the fold when you feel a strong hamstring stretch or your torso nears parallel. 7. Drive through the mid-foot of the standing leg and squeeze the standing-side glute to return to a tall standing position. 8. Exhale as you hinge down and inhale as you stand back up, keeping your breathing steady. 9. Complete all reps on the right leg, then reset the ball and repeat on the left leg. ## Tips & Tricks - If the ball drifts forward as you hinge, your back foot is pressing into it instead of resting on it; keep the rear leg relaxed and let it simply follow your torso. - A common mistake is rounding the lower back at the bottom of the fold. Stop a few degrees earlier and keep the chest proud to protect your spine. - If your standing foot wobbles inward, think about gripping the floor with your toes and pressing the big toe down; this wakes up the arch and the outer hip. - Do not let the standing knee collapse or dive forward. The movement should come from the hip going back, not the knee travelling ahead of the toes. - Start with a shallow hinge near the top of the range for your first set. The ball version feels deeper than it looks because the rear leg keeps rolling away from you. - Keep your neck in line with your spine by looking at a spot on the floor a foot or two ahead of you, rather than craning up to the mirror. - If one side shakes badly, hold a wall or sturdy chair with one hand for the first few sessions and progress to hands-free once the hinge feels steady. - Slow the lowering phase to a two- or three-count. Most people lose the hamstring stretch benefit by dropping into the hinge too quickly. ## Frequently Asked Questions ### Which muscles does the Bodyweight Single Leg Deadlift Against Ball work? The hamstrings and glutes of the standing leg do most of the work, with the lower back and core stabilizing your torso. The ankle and hip stabilizers of the support leg also work hard to keep you balanced over the rolling ball. ### Is the ball just for balance, or does it add difficulty? It does both. The ball gives your rear foot a contact point, but because it rolls, your standing leg has to constantly adjust, which makes the movement more demanding than a free-floating single leg deadlift for many people. ### Is this exercise suitable for beginners? Yes, as long as the range is kept shallow. Beginners should hinge only partway down, keep the ball close against a wall, and possibly hold a wall with one hand until the single-leg balance feels secure. ### How far should the stability ball be from my standing foot? Roughly two to three feet, so your rear leg can extend behind you as you hinge. If your back foot slips off the ball at the bottom, move the ball slightly closer. ### Why do I feel this in my lower back instead of my hamstrings? That usually means you are rounding or overextending your spine instead of hinging from the hips. Shorten the range, brace your abs harder, and think about driving the hips back rather than dropping the chest down. ### Can I replace the stability ball with a bench? Yes, a bench turns this into a more stable rear-foot-supported hinge, which is a good regression. The ball version is harder because the rear leg can move, but the bench version lets you focus purely on the hinge pattern. ### How many reps should I do per side? Start with 6 to 10 controlled reps per leg for two or three sets. Because balance is often the limiting factor, prioritize smooth, controlled reps over pushing to fatigue. ### Should my rear leg stay bent or straight during the hinge? Let it extend naturally as you fold forward, staying relaxed on top of the ball. Actively kicking it straight or pressing it into the ball shifts tension away from the standing hamstrings. ### Is it safe for my knees? The standing knee stays softly bent and does not travel far, so the load sits mostly on the hip and hamstring. If you have an existing knee injury, keep the knee bend small and stop if you feel discomfort.