Peroneal (fibular) muscles

Looks like

Two muscles on the outer shin, their tendons hooking behind the outer ankle bone.

What it does

Turn the foot outwards and stop it rolling under when you land.

Keeping it well

Balance work after a sprain; weak ones are why an ankle keeps going over.

Its parts

• Fibularis brevis
• Fibularis longus
• Fibularis tertius

Related conditions

• Achilles tendon rupture
• Botulism
• Chronic venous insufficiency
• Compartment syndrome
• Fibromyalgia
• Frailty & falls in older age
• Growing pains
• Heat exhaustion & heatstroke
• Lymphangitis
• Lymphatic filariasis (elephantiasis)
• Lymphoedema
• Malnutrition & refeeding syndrome
• Muscular dystrophy
• Polymyalgia rheumatica
• Restless legs syndrome
• Rhabdomyolysis
• Sarcoma
• Sarcopenia
• Superficial thrombophlebitis
• Tetanus
• Varicose veins
• Venomous snakebite