Injuries & Pathologies — Reference

Section Seven: The Foot & Ankle
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General Guidelines — Foot & Ankle Pathologies

Ankle Sprains

1 Injury / Condition

A common injury where one or more ankle ligaments is torn or partially torn — about 2 million per year in the US. Lateral sprains account for 75%, most often the anterior talofibular ligament, then the calcaneofibular. Graded mild (I), moderate (II), or severe (III). Medial (deltoid) sprains are much less common and often have an avulsion fracture. Syndesmotic 'high' ankle sprains are more serious (2–3× longer recovery). Multiple sprains cause instability; a prior sprain raises re-injury risk ~3.5×.

  • ~2 million per year in the US
  • 75% are lateral sprains
  • Prior sprain → ~3.5× re-injury risk
  • High (syndesmotic) sprains take 2–3× longer

Symptoms: Acute: swelling, pain, stiffness, throbbing, redness, and warmth or other discoloration. Chronic: laxity.

2 Recommended Practice Times & Studio Conditions
  • Initially work on ROM; later progress to balance, proprioception, hip strengthening, and closed-chain work for ankle and whole-chain stability.
  • Favor closed-chain over open-chain — co-contraction promotes joint stability and is more functional.
  • Watch foot position depending on the stage of rehab and the sprain location.
  • Strengthen proximal stabilizers (hips and core) for distal control.
3 Contraindications (what not to do)
  • Watch foot position depending on rehab stage and sprain location.
  • Progress carefully from ROM to loading as the ligament heals.
4 Recommended Repertoire

Initially work on ROM; later add balance and proprioception, hip strengthening, and closed-chain exercises to increase ankle and whole-chain stability.

Stretching & Mobility

Gastrocnemius/Soleus Stretches (in subtalar neutral)
Gastrocnemius/Soleus Stretches (in subtalar neutral)
Stretches > Fundamental
Single Leg Footwork Variation (PF/DF)
Single Leg Footwork Variation (PF/DF)
Footwork > Intermediate

Balance, Proprioception & Functional

Scooter on Unstable Surface
Scooter on Unstable Surface
Full Body Integration > Advanced
Leg Press Standing on Unstable Surface
Leg Press Standing on Unstable Surface
Leg Work > Intermediate

Intrinsic Foot & Arch Strengthening

Towel Crunch
Towel Crunch
Footwork > Fundamental
Windshield Wipers
Windshield Wipers
Footwork > Fundamental
SuPro Dance
SuPro Dance
Footwork > Intermediate
Supination Standing on Step
Supination Standing on Step
Footwork > Intermediate

Achilles Tendinopathy

1 Injury / Condition

Inflammation and/or tendon breakdown from excessive loading — acute tendinitis (over a few days after a training increase) or chronic tendinosis (over a longer period). Tendinosis is most often an overuse injury in middle-aged athletes (especially male runners 35–45) but also occurs in sedentary people. Usually at the heel attachment or mid-tendon (~4cm above the heel). Healing is slow due to poor blood supply. Untreated tendinosis or trauma can cause rupture, requiring surgery and long rehab.

  • Tendinitis (acute) vs tendinosis (chronic)
  • Common in male runners 35–45
  • Slow healing (poor blood supply)
  • Eccentric calf raises help tendinosis only

Symptoms: Tendinitis: acute pain, swelling, palpable tenderness. Tendinosis: chronic Achilles pain with no inflammatory cells, localized tendon thickening, irregular structure, and persistent pain during activity.

2 Recommended Practice Times & Studio Conditions
  • Emphasize stretching and proximal strengthening.
  • Use eccentric calf raises — but for tendinosis only, not acute tendinitis.
  • Avoid propulsive exercises (jump board, running, jumping).
  • If post-op (after rupture), follow the surgeon's/PT's specific protocol.
3 Contraindications (what not to do)
  • Avoid propulsive-type exercises (jump board, running, jumping).
  • Eccentric calf raises are for tendinosis only — not acute tendinitis.
4 Recommended Repertoire

Stretching, proximal strengthening, and eccentric calf raises (for tendinosis only).

Stretching & Mobility

Gastrocnemius/Soleus Stretches (in subtalar neutral)
Gastrocnemius/Soleus Stretches (in subtalar neutral)
Stretches > Fundamental
Single Leg Footwork Variation (PF/DF)
Single Leg Footwork Variation (PF/DF)
Footwork > Intermediate

Calf / Plantarflexor (Eccentric)

Footwork Variations – Eccentric Calf Raises
Footwork Variations – Eccentric Calf Raises
Footwork > Advanced
Calf Press in Forward Lunge
Calf Press in Forward Lunge
Leg Work > Advanced
Jumpboard with Extended Knees
Jumpboard with Extended Knees
Footwork > Intermediate

Balance, Proprioception & Functional

Scooter on Unstable Surface
Scooter on Unstable Surface
Full Body Integration > Advanced
Leg Press Standing on Unstable Surface
Leg Press Standing on Unstable Surface
Leg Work > Intermediate

Shin Splints (Medial Tibial Stress Syndrome)

1 Injury / Condition

A painful condition of the shins involving irritation and inflammation of the muscles, tendons, and bone, generally from repetitive high-impact activity that overworks the lower leg. Contributing factors include overpronation, flat feet or rigid arches, proximal malalignment, weak anterior lower-leg muscles, short/tight calves, and poor footwear or sudden activity increases. Untreated shin splints can progress to a stress fracture (or the symptoms may already be a stress fracture). Very slow to heal.

  • Irritation of lower-leg muscles, tendons, bone
  • From repetitive high-impact activity
  • Linked to overpronation & weak anterior muscles
  • Can progress to a stress fracture

Symptoms: Tenderness and pain over the inside lower half of the shin, provoked during or after activity and reduced with rest. Occasionally swelling or lumps on the inside of the tibia. Pain often returns after activity and may be worst the next morning.

2 Recommended Practice Times & Studio Conditions
  • Stretch the calves and strengthen tibialis anterior and the 'sling muscles' (tibialis posterior and peroneus longus) to prevent excessive pronation.
  • Add proximal strengthening plus balance and proprioception.
  • Avoid weight-bearing, propulsive exercises (running, jump board).
  • Address footwear and training-load issues in conversation.
3 Contraindications (what not to do)
  • Avoid weight-bearing, propulsive exercises (running, jump board, etc.).
4 Recommended Repertoire

Stretch the calves; strengthen tibialis anterior and the sling muscles (tibialis posterior, peroneus longus) to prevent excessive pronation; add proximal strengthening, balance, and proprioception.

Intrinsic Foot & Arch Strengthening

Towel Crunch
Towel Crunch
Footwork > Fundamental
Windshield Wipers
Windshield Wipers
Footwork > Fundamental
SuPro Dance
SuPro Dance
Footwork > Intermediate
Supination Standing on Step
Supination Standing on Step
Footwork > Intermediate

Stretching & Mobility

Gastrocnemius/Soleus Stretches (in subtalar neutral)
Gastrocnemius/Soleus Stretches (in subtalar neutral)
Stretches > Fundamental
Single Leg Footwork Variation (PF/DF)
Single Leg Footwork Variation (PF/DF)
Footwork > Intermediate

Balance, Proprioception & Functional

Scooter on Unstable Surface
Scooter on Unstable Surface
Full Body Integration > Advanced
Leg Press Standing on Unstable Surface
Leg Press Standing on Unstable Surface
Leg Work > Intermediate

Plantar Fasciitis (Heel Spur Syndrome)

1 Injury / Condition

An overuse injury from repetitive strain causing irritation, degeneration, and micro-tears of the plantar fascia — the thick connective-tissue band running from the heel to the toes that supports the arch and absorbs shock. Common with heel-stressing activities (long-distance running, especially downhill/uneven; dancing) and occupations requiring prolonged standing/walking on hard surfaces. Contributing factors: obesity, flat feet or high arches, excessive pronation, limited ankle dorsiflexion, weak/tight plantar flexors and foot intrinsics, and unsupportive shoes.

  • Micro-tears & degeneration of the plantar fascia
  • Worse first thing in the morning
  • Linked to pronation & limited dorsiflexion
  • Common with prolonged standing on hard floors

Symptoms: A dull, constant ache at the underside of the heel, sometimes up to the medial arch, that can be sharp and stabbing when the foot is used. Worse first thing in the morning and aggravated by walking and prolonged standing. Irritation/swelling on the plantar surface; can be one or both feet. Usually more intense barefoot or in minimally supportive shoes.

2 Recommended Practice Times & Studio Conditions
  • Calf stretches plus rolling the sole over a golf/tennis ball or an iced bottle (ice massage).
  • Strengthen muscles that reduce functional pronation (tibialis posterior, peroneus longus, hip external rotators and abductors).
  • Avoid weight-bearing exercise barefoot.
  • Avoid running, jumping, and other high-impact work.
3 Contraindications (what not to do)
  • Avoid running, jumping, etc.
  • Avoid walking or doing weight-bearing exercises barefoot.
4 Recommended Repertoire

Calf stretches and rolling over a ball or iced bottle; strengthen muscles that reduce functional pronation (tibialis posterior, peroneus longus, hip external rotators and abductors).

Stretching & Mobility

Gastrocnemius/Soleus Stretches (in subtalar neutral)
Gastrocnemius/Soleus Stretches (in subtalar neutral)
Stretches > Fundamental
Single Leg Footwork Variation (PF/DF)
Single Leg Footwork Variation (PF/DF)
Footwork > Intermediate

Intrinsic Foot & Arch Strengthening

Towel Crunch
Towel Crunch
Footwork > Fundamental
Windshield Wipers
Windshield Wipers
Footwork > Fundamental
SuPro Dance
SuPro Dance
Footwork > Intermediate
Supination Standing on Step
Supination Standing on Step
Footwork > Intermediate

Balance, Proprioception & Functional

Scooter on Unstable Surface
Scooter on Unstable Surface
Full Body Integration > Advanced
Leg Press Standing on Unstable Surface
Leg Press Standing on Unstable Surface
Leg Work > Intermediate
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