Thigh

iliotibial tract

il-ee-oh-TIB-ee-ul TRAKT

The iliotibial tract (IT band) is a thick fibrous band down the outer thigh from hip to knee, stabilizing the leg during running and single-leg stands. Tight ITB causes knee pain in runners; mobility work prevents issues.

Open in 3D Viewer

Common Pain & Injury

Lateral knee pain (ITBS) from friction, worse downhill running. See doc if swelling.

Anatomy & Function

Origin

Iliac crest, gluteus maximus, TFL (hip bone, butt muscle, outer hip)

Insertion

Lateral tibial condyle at Gerdy's tubercle (outer shin bone)

Actions

Stabilizes knee in extension
Assists hip abduction

Innervation

Passive structure; muscles above via superior gluteal

Muscle Relationships

Antagonists

Adductors

Synergists

Tensor fasciae lataeGluteus maximus

Trigger Points

Not muscular; TFL points refer to ITB pain.

Stretches

1ITB standing crossover stretch

2Figure 4 foam roll

3Side lying ITB stretch

Common Conditions

Iliotibial band syndromeLateral knee pain syndrome

Anatomical Parts

Right iliotibial tractLeft iliotibial tract

FAQ

IT band pain when running?

ITBS from friction; foam roll TFL and strengthen glutes.

How to stretch IT band?

Crossover leg pull or foam roller on outer thigh.

What causes tight IT band?

Weak hips, overpronation; mobility + strength fixes.

ITB syndrome knee pain?

Outer knee snap/ache; rest, then eccentric squats.

Exercises for iliotibial tract

8

Hip Circles (prone) position 1

Hip Circles (prone) position 2

Hip Circles (prone)

beginner·Bodyweight

IT Band and Glute Stretch position 1

IT Band and Glute Stretch position 2

IT Band and Glute Stretch

intermediate·other

Iliotibial Tract-SMR position 1

Iliotibial Tract-SMR position 2

Iliotibial Tract-SMR

intermediate·foam roll

Lying Crossover position 1

Lying Crossover position 2

Lying Crossover

expert·Bodyweight

Monster Walk position 1

Monster Walk position 2

Monster Walk

beginner·bands

Standing Hip Circles position 1

Standing Hip Circles position 2

Standing Hip Circles

beginner·Bodyweight

Thigh Abductor position 1

Thigh Abductor position 2

Thigh Abductor

beginner·machine

Windmills position 1

Windmills position 2

Windmills

Also Works iliotibial tract

10

Alternate Leg Diagonal Bound position 1

Alternate Leg Diagonal Bound position 2

Alternate Leg Diagonal Bound

Box Jump (Multiple Response) position 1

Box Jump (Multiple Response) position 2

Box Jump (Multiple Response)

beginner·other

Box Skip position 1

Box Skip position 2

Box Skip

beginner·other

Box Squat with Bands position 1

Box Squat with Bands position 2

Box Squat with Bands

expert·barbell

Box Squat with Chains position 1

Box Squat with Chains position 2

Box Squat with Chains

expert·barbell

Carioca Quick Step position 1

Carioca Quick Step position 2

Carioca Quick Step

Crossover Reverse Lunge position 1

Crossover Reverse Lunge position 2

Crossover Reverse Lunge

Dancer's Stretch position 1

Dancer's Stretch position 2

Dancer's Stretch

Depth Jump Leap position 1

Depth Jump Leap position 2

Depth Jump Leap

beginner·other

Double Leg Butt Kick position 1

Double Leg Butt Kick position 2

Double Leg Butt Kick

beginner·Bodyweight

Related Thigh Muscles

The biceps femoris is the lateral hamstring on the back of the thigh, with long and short heads forming a thick band from hip to knee. It flexes the knee, extends the hip, and rotates the leg outward, vital for running, jumping, and deadlifts. Key for posterior chain power and injury prevention.

Long, thin medial thigh muscle adducting and flexing knee. Aids cutting movements in soccer, stabilizing in squats.

The rectus femoris is the central quad muscle crossing both hip and knee, visible as the teardrop above your knee. It flexes the hip and extends the knee, powering sprints, jumps, and squats. Balanced development prevents knee pain in athletes.

The sartorius is the longest muscle in the body, spiraling from hip to inner knee, forming a 'tailor's muscle' for crossing legs. It flexes, abducts, and rotates the hip plus flexes the knee, key for soccer kicks and agility drills. Balances quad-dominant training.

semimembranosus

The semimembranosus is a posterior thigh hamstring forming the teardrop at knee back, flexing knee and extending hip. Powers deadlifts, lunges, and deceleration in sports. Prevents ACL strains by stabilizing.

Semitendinosus is the slender medial hamstring with a long tendon, flexing knee and extending hip. Aids in medial knee stability for cutting sports. Complements semimembranosus for balanced posterior chain.

vastus intermedius

Deep central quad muscle under rectus femoris, extends knee powerfully. Core quad for squats and jumps.

vastus lateralis

Largest quad on outer thigh, massive knee extender for lateral stability in lunges and sprints.

Thigh Pain Guide

Common causes and relief

Activities & Sports

See which activities use iliotibial tract