FLEXOR HALLUCIS

LONGUS

• Origin

Posterior surface of the fibula and the interosseous membrane

• Insertion

Base of the distal phalanx of the great toe (hallux)

• Agonist(s)

- Flexor digitorum longus

- Tibialis posterior

• Antagonist(s)

- Extensor hallucis longus

- Peroneus tertius

• Function

Flexion of the great toe, inversion of the foot (turning sole of foot inward), plantarflexion of the foot

TRIGGER POINT(S)

• Location

Trigger points can be found along the length of the muscle, particularly in the middle and lower portions of the calf

• Pain Referral Pattern

Pain may refer to the lower leg, ankle, and under the big toe.

It can cause aching, burning, or sharp pain in the posterior calf and may contribute to discomfort or restricted movement in the ankle and big toe.

• Potential Causes

• Overuse or repetitive activities involving toe flexion and plantar flexion, such as running, dancing, or certain sports.

• Poor footwear or improper foot mechanics.

• Muscle imbalances between the flexor hallucis longus and other lower leg muscles.

• Trauma or injury to the lower leg or foot area.

• Prevention Tips

• Use proper techniques and form during activities involving toe flexion and plantar flexion to avoid overloading the flexor hallucis longus.

• Incorporate regular stretching and strengthening exercises for the lower leg and foot muscles.

• Ensure proper warm-up and cooldown routines before and after exercise.

• Maintain good posture and ergonomics during daily activities.

• Wear appropriate footwear that provides good support and fit to avoid muscle strain.