Stretching your adductors, the five muscles running along your inner thigh, requires a combination of positions that pull the knees apart from the midline of your body. The key to making these stretches effective is maintaining a posterior pelvic tilt (tucking your tailbone slightly under) and adjusting your knee position to target different muscles in the group. Here’s how to do it properly.
What Your Adductors Actually Do
Your inner thigh contains five muscles: the pectineus, adductor longus, adductor brevis, gracilis, and adductor magnus. Together, they pull your thigh toward the center of your body and stabilize your pelvis during walking, running, and single-leg movements. The adductor magnus is the largest of the group and functions similarly to the deltoid muscle of the shoulder, meaning different portions of it do different things. One section flexes and internally rotates the thigh, while another extends and externally rotates it. This is why no single stretch hits everything.
The gracilis is the only muscle in the group that crosses both the hip and the knee. This matters for stretching: when your knee is bent, the gracilis goes slack, and the stretch shifts more toward the adductor longus and brevis. When your knee is straight, the gracilis gets pulled taut and takes on more of the stretch. Knowing this lets you adjust a single stretch position to change which muscles feel the work.
Butterfly Stretch
Sit on the floor with the soles of your feet together and your knees falling open to the sides. Sit tall and gently press your knees toward the ground using your elbows or hands. The stretch should run along the inside of both thighs. Hold for 20 to 30 seconds per set.
Because your knees are bent in this position, the butterfly primarily targets the shorter adductors (adductor longus, brevis, and pectineus) rather than the gracilis. To increase intensity, bring your heels closer to your body. To decrease it, move them farther away.
Frog Stretch
Start on all fours, then widen your knees as far apart as comfortable with your feet turned outward so the inside edges rest on the floor. Slowly sink your hips back and down toward the ground. You should feel a deep stretch across both inner thighs simultaneously. Hold for 20 to 30 seconds, or gently rock forward and back for a more dynamic version.
You can also do a supine version: lie on your back, bend both knees, and let them fall open to the sides with the soles of your feet together (similar to butterfly but lying down). Pillows under your knees can support the position if the stretch feels too intense. Gravity does the work here, making this a good option if you’re very tight or recovering from a strain.
Side Lunge Stretch
Stand with your feet wide apart, roughly double shoulder width. Shift your weight to one side, bending that knee while keeping the opposite leg straight. The straight leg’s inner thigh should feel the stretch. Keep your chest up and both feet flat on the floor. Because the stretched leg is fully extended at the knee, this position loads the gracilis along with the longer adductor fibers, making it a good complement to the bent-knee stretches above.
You can hold this as a static stretch or use it dynamically by shifting side to side in a controlled rhythm before a workout.
Half-Kneeling Adductor Stretch
Kneel on one knee with the other leg extended straight out to the side, foot flat on the floor and toes pointing forward. Keeping your torso upright, shift your hips toward the kneeling side until you feel a stretch along the inner thigh of the extended leg. This is sometimes called the “90/90 adductor stretch” and gives you fine control over intensity by adjusting how far you shift laterally.
The Most Common Mistake
The single biggest error people make when stretching their adductors is leaning forward and letting the pelvis tip into an anterior tilt (lower back arching, tailbone pointing up). This essentially lets you cheat around the stretch by adding hip flexion instead of true abduction. You feel like you’re going deeper, but the adductors aren’t actually lengthening.
The fix is simple: tuck your tailbone slightly under and keep your torso upright throughout every adductor stretch. In the butterfly, this means sitting tall rather than folding forward. In the side lunge, it means keeping your chest proud rather than hinging at the waist. In the half-kneeling stretch, watch for your hips rotating or your shoulders rounding. If you correct only one thing in your adductor stretching, make it this.
Dynamic Stretches for Warm-Ups
Static holds work best after exercise or as standalone flexibility work. Before a workout, dynamic movements prepare the adductors more effectively. Lateral leg swings are the simplest option: stand next to a wall for balance, swing one leg side to side across your body in a controlled arc, gradually increasing the range over 10 to 15 repetitions per leg. Walking leg sweeps, where you sweep the trailing leg across the front of the standing leg with each step, are another option that adds a coordination challenge.
Lateral lunges performed as a flowing movement (shifting side to side without pausing) also work well as a dynamic warm-up. The goal is to move through your available range of motion repeatedly rather than pushing to end range and holding.
PNF Stretching for Faster Gains
If your adductors are stubbornly tight, contract-relax stretching (a form of PNF) can produce larger range-of-motion improvements than passive stretching alone. Here’s the protocol: get into any adductor stretch position and move to the point of mild discomfort. From there, contract your adductors at about 50% effort (squeeze your legs toward the midline) for 10 seconds against an immovable resistance, like the floor, a wall, or a partner’s hands. Relax for 5 seconds, then ease deeper into the stretch for another 5 seconds. Repeat for 2 to 4 cycles.
The contraction triggers a reflex that temporarily reduces muscle resistance, allowing you to move further into the stretch during the relaxation phase. This technique works well with the butterfly, frog, and side lunge positions.
How Long and How Often
For short-term flexibility gains, hold each stretch for at least 5 to 30 seconds and perform a minimum of two sets. If your goal is to reduce long-term muscle stiffness, the threshold is higher: aim for at least 4 minutes of total static stretching per session, five times per week. That could look like two 30-second holds of four different adductor stretches, which totals 4 minutes and covers the muscle group from multiple angles.
Consistency matters more than intensity. Pushing aggressively into a stretch once a week does less for your range of motion than moderate daily stretching held at mild discomfort.
Does Foam Rolling Help?
Foam rolling the adductors before stretching is popular, but the evidence for a combined benefit is mixed. A meta-analysis comparing foam rolling to stretching found that the magnitude of range-of-motion improvements was essentially the same between the two methods. Some individual studies favored foam rolling, others favored static stretching, and several found no difference. For the adductors specifically, the measured difference between foam rolling and stretching was negligible.
That said, if foam rolling your inner thighs feels good and helps you relax into a stretch, there’s no downside to including it. Lie face down with one leg abducted to the side, place a foam roller under the inner thigh, and roll slowly from just above the knee to the groin crease. Spend 30 to 60 seconds per side. Just don’t treat it as a replacement for actual stretching if flexibility is your goal.