Muscle guide · Thighs

Adductors

Also called inner thigh muscles, groin muscles, hip adductors

The adductors are the muscles of the inner thigh. Five of them run from the pubic bone and the bottom of the pelvis down to the thigh bone: adductor longus, brevis and magnus, gracilis and pectineus. The gracilis continues past the knee.

They pull the leg in toward the midline, steady the pelvis when your foot is planted, and the big adductor magnus also helps straighten the hip as you rise from a squat.

7 exercises4 stretches11 with 3D demos9 sourcesUpdated 17 October 2026

Where the adductors is and what it does

Shaded: the adductors area. It marks the region, not the exact outline of the adductors.
What it does
  • Pull the thigh in toward the midline: squeezing the knees together, a side-foot pass.Hip adduction
  • Steady the pelvis and leg when the foot is planted.Pelvic stabilisation in closed-chain movement
  • The adductor magnus helps straighten the hip, as when you stand up from a squat.Hip extension (adductor magnus, hamstring part)
Nerve supply
Mostly the obturator nerve (L2 to L4). The hamstring part of adductor magnus also gets the tibial part of the sciatic nerve, and the pectineus is usually supplied by the femoral nerve; sources differ on the exact roots.

Sources 1, 2, 3, 5

The parts of the adductors

PartStarts atAttaches toWhat it does
Adductor longusFront of the pubic boneMiddle of the ridge down the back of the thigh bone (linea aspera)Pulls the thigh in; also helps bend the hip
Adductor brevisFront of the pubic bone, under the longusUpper part of the back of the thigh bonePulls the thigh in
Adductor magnusBottom of the pubic bone and the sit boneDown the back of the thigh bone, and a tubercle just above the inner kneePulls the thigh in; its front part helps bend the hip and its hamstring part straightens it
GracilisLower edge of the pubic boneInside of the shin just below the kneePulls the thigh in, helps bend the hip and knee, turns the leg inward
PectineusTop front of the pubic boneBack of the upper thigh bone, below the hipPulls the thigh in and bends the hip

Sources 1, 2, 3, 5

Exercises for the adductors

The Copenhagen adduction and standing band adduction were the high-intensity exercises in an EMG study of eight. The original football programme started with side-lying adduction; teams often swapped in squeezes.

Stretches for the adductors

Problems linked to the adductors

Groin (adductor) strain

One of the most common groin injuries in sport, especially football and ice hockey, usually from a sudden change of direction with the leg pulled outward while the muscles contract. The adductor longus is the site in 62% to 90% of cases, and a previous hip or groin injury is the biggest risk factor.

In European professional football, adductor injuries made up 23% of muscle injuries, second only to hamstrings.

Sources 4, 1

Strength balance

Rugby players whose adduction strength was under 80% of their abduction strength were reported to be 17 times more likely to strain an adductor.

Source 4

Pain on the inner knee

Where the gracilis tendon joins the sartorius and semitendinosus below the knee (the pes anserinus), overuse can inflame the bursa or tendons and cause pain on the inside of the knee.

Source 3

Myths worth dropping

Each grade rates the evidence for the correction.

Stretching prevents groin strainsStrong evidence

The programme shown to reduce groin problems in men's football is built on strengthening: one exercise, the Copenhagen adduction, which lowered the risk by 41%. More broadly, stretching programmes have not prevented sports injuries.

Sources 6, 9

Routines that train it

Questions people ask

What do the adductor muscles do?

They pull the thigh in toward the midline, steady the pelvis when your foot is planted, and the adductor magnus also helps straighten the hip.

How do you strengthen the adductors?

The Copenhagen adduction (side plank with the top leg on a bench) and standing band adduction were the high-intensity exercises in an EMG study. Start with side-lying adduction or a ball squeeze if those are too hard.

How many adductor muscles are there?

Five are usually grouped together: adductor longus, adductor brevis, adductor magnus, gracilis and pectineus.

Which adductor is most often strained?

The adductor longus, in 62% to 90% of adductor strains.

Muscles it works with

Sources

  1. StatPearls · Anatomy, Bony Pelvis and Lower Limb: Medial Thigh Muscles (2023)
  2. StatPearls · Anatomy, Bony Pelvis and Lower Limb: Thigh Adductor Magnus Muscle (2023)
  3. StatPearls · Anatomy, Bony Pelvis and Lower Limb: Thigh Gracilis Muscle (2023)
  4. StatPearls · Adductor Strain (2025)
  5. StatPearls · Anatomy, Bony Pelvis and Lower Limb: Obturator Nerve (2023)
  6. Stensø 2022 · The Adductor Strengthening Programme and groin problems in football (BMJ Open)
  7. Serner 2014 · Adductor longus activity in eight exercises (Br J Sports Med, abstract)
  8. Dalen-Lorentsen 2024 · How football teams used the Adductor Strengthening Programme (BMJ Open Sport Exerc Med)
  9. Lauersen 2014 · Exercise to prevent sports injuries: strength training vs stretching (meta-analysis of RCTs, Br J Sports Med, abstract)

Anatomy and movement education, not a diagnosis or treatment plan. If you have pain that follows an injury, is severe or getting worse, or comes with numbness, weakness or swelling, get it assessed. Health disclaimer.