What it is

Extensor tendinopathy refers to overload of tendons on the top of the foot, often linked to lace pressure and high mileage activity. Flexor hallucis longus tendinopathy causes ankle pain during push-off, typically on the inside of the ankle or under the midfoot, extending to the base of the big toe.

Both are commonly associated with overuse injuries from activities such as running, jumping and dancing. Pain rises with training spikes, tight footwear, and repetitive pointe or sprint work. Untreated, symptoms limit performance; however, with targeted loading and footwear adjustments, the tendons regain tolerance.

What happens when it occurs

Repetitive tensile load and local compression irritate the tendon and its sheath. Reducing compressive positions and grading load allows recovery.

Common causes and risk factors

  • Ill-fitting footwear: Tight lacing or narrow toe boxes in footwear
  • High training volume or sudden increases
  • Repetitive stress: Repetitive pointe and relevé in dancers, or sprinting in athletes
  • Calf and intrinsic foot muscle weakness

Who is most affected

Distance runners, sprinters, dancers, and workers in tight footwear.

Typical symptoms

Extensor Tendinopathy

  • Pain is felt on top of the foot and/or front of the ankle
  • Difficulty in raising the foot
  • Pain worsens with activities like walking, running and climbing stairs
  • May present with mild swelling on top of the foot

Flexor Tendinopathy

  • Pain occurs at the back of the ankle, under the midfoot, or at the base of the big toe.
  • Pain with movement, particularly when flexing the foot or standing on tiptoes.
  • A locking sensation in the big toe.
  • Reduced range of motion in the big toe.

When to seek care

If pain persists beyond two weeks or limits training progression. Pain that worsens with activity.

How we diagnose

Clinical loading tests and palpation.

Ultrasound is used for persistent cases to define tenosynovitis or nodularity.

MRI can be used in more severe cases or for athletes who require specialised imaging.

Management

  • Modified training
  • Footwear adjustment and lace-locking to remove pressure
  • Range of movement exercises
  • Tendon-specific strengthening in tolerated arcs
  • Foot intrinsic work and gait retraining
  • Graded return to running or dance; injections are rarely indicated but can be used in severe or recalcitrant cases

Rehabilitation milestones

Phase 1, weeks 0–2: remove pressure, isometrics, technique cues.

Phase 2, weeks 2–6: heavy, slow loading, intrinsic strength, metronome-paced drills.

Phase 3, weeks 6–10: return-to-run or class plan with hop or relevé testing.

Phase 4, weeks 10–14: full workload and performance drills.

Readiness to progress

  • Pain-free big-toe flexion or resisted dorsiflexion
  • Symmetrical hop or relevé counts
  • Target session completed without next-day flare

How long it takes you to feel better depends on how irritated your tendons are. Most people start to feel better as soon as they rest their foot and take a break from any activities that aggravate their extensor or flexor tendons. It can take anywhere from a few weeks to a few months for your tendons to return to normal. Discuss a recovery timeline with your healthcare provider at Spinal and Sports Care for your specific case of tendinopathy.

Prevention

  • Shoe fit and lacing
  • Calf and intrinsic strength
  • Gradual load progressions

Extensor tendinopathy vs. stress fractures

  • Both extensor tendinopathy and stress fractures can cause similar symptoms in your foot. They can also be caused by repetitive use or overuse. The difference between extensor tendinopathy and a stress fracture is what’s damaged inside your body.
  • If you have extensor tendinopathy, one of the extensor tendons that run along the top of your foot is irritated and inflamed from overuse.
  • A stress fracture is a type of bone fracture. Your metatarsals are the five bones that form the arch of your foot and join the back of your foot to your toes. A stress fracture can begin as inflammation deep within the bone and develop into a tiny crack that forms over time due to repeated motions or intense activity.

Australia snapshot

  • In dance cohorts, the foot and ankle account for roughly one-third to one-half of all injuries, with FHL tendinopathy a common overuse condition
  • Running groups report dorsal foot extensor pain commonly when mileage increases or shoes are laced tightly.
  • Women in dance dominate FHL caseloads; runners show a more even split

Latest insights

Reducing compressive load is as essential as tensile loading.

Heavy, slow resistance, plus technique cues, outperforms rest.

Frequently Asked Questions

Timeframes depend on the grade and your starting capacity. Mild injuries often settle within weeks when loading is matched to tolerance. Moderate injuries take longer to recover from, as strength and control are rebuilt. Severe injuries or those with instability need a longer block, can take up to 12-18 months and closer supervision. Progress is criteria-based.

Yes, if pain during activity stays at or below 3 out of 10 and does not worsen the next morning. Reduce volume and intensity, maintain a tidy technique, and avoid movements that exacerbate symptoms.

Imaging helps when red flags are present, progress stalls after two weeks, or instability or a tear is suspected. Your clinician will advise on whether an X-ray, ultrasound, or MRI is most useful.

Use a brace or tape during the early return or on uneven ground. Remove it for controlled strength and balance work so that muscles can relearn their job.

Ice helps early when swelling and pain dominate. Heat helps later when stiffness is the main issue.

When the pain is 2 out of 10 or less the next morning, strength is within 90% of the other side, and you pass the functional test for this condition, such as single-leg hops, figure-of-eight runs, or step-downs.

Cut the next session’s volume by 20 to 30 per cent, keep strength work, and retest the following day. Progress again when baseline settles.

They can unload sensitive tissue early. Keep them while strength and control improve, then review fit and need.

Most people continue working on tasks and making standing adjustments. Drive when you can load and move the ankle safely and brake firmly without pain.