Disclaimer: This listing is provided for informational and educational purposes only, and not intended to diagnose or offer a treatment plan for any listed condition. Please seek medical attention to properly diagnose and treat any injury.
According to a 2015 review of studies Trusted Source, the knees, legs, and feet are the most common injury areas for runners. The review breaks down the location-specific incidence of running injuries as follows:
- Knees: 7.2 to 50 percent
- Lower leg: 9.0 to 32.2 percent
- Upper leg: 3.4 to 38.1 percent
- Foot: 5.7 to 39.3 percent
- Ankles: 3.9 to 16.6 percent
- Hips, pelvis, or groin: 3.3 to 11.5 percent
- Lower back: 5.3 to 19.1 percent
Let’s take a closer look at some of the most common injuries that affect runners.
1. Runner’s knee (patellofemoral syndrome)
Runner's knee or patellofemoral syndrome, is a general term that refers to pain in the front of your knee or around your kneecap. It’s a common overuse injury in sports that involve running or jumping.
Weakness in your hips or the muscles around your knee can put you at a higher risk of developing runner’s knee.
Runner’s knee can cause pain that:
- is dull and can be felt in one or both knees
- ranges from mild to very painful
- gets worse with prolonged sitting or exercise
- gets worse when jumping, climbing stairs, or squatting
This type of injury may also cause cracking or popping sounds after prolonged periods of being stationary.
A doctor can often diagnosis runner’s knee with a physical exam but may recommend an X-ray to rule out other conditions. A physical therapist can give you a specific treatment plan to treat a runner’s knee injury.
2. Achilles tendinitis
Achilles tendinitis refers to inflammation of the tendon that connects your calf muscle to your heel. It may happen after increasing your mileage or the intensity of your running.
If left untreated, Achilles tendinitis increases your risk of rupturing your Achilles tendon. If this tendon is torn, it usually requires surgery to repair it.
Common symptoms of Achilles tendinitis include:
- dull pain in your lower leg above your heel
- swelling along your Achilles tendon
- limited range of motion when flexing your foot toward your shin
- a warm feeling over the tendon
3. IT band syndrome
Your iliotibial band, commonly referred to as your IT band, is a long piece of connective tissue that runs from your outer hip to your knee. This band of tissue helps stabilize your knee when you’re walking or running.
IT band syndrome is caused by repetitive friction of the IT band rubbing against your leg bone. It’s very common in runners due to tight IT bands. Weak gluteal muscles, abdominals, or hips may also contribute to this condition.
IT band syndrome causes sharp pain on the outer side of your leg, usually just above your knee. Your IT band may also be tender to the touch. The pain often gets worse when you bend your knee.
4. Shin splints
Shin splints (tibial stress syndrome) refers to pain that occurs in the front or the inner parts of your lower legs, along your shinbone. Shin splints can happen when you increase your running volume too quickly, especially when running on hard surfaces, or can be caused or exacerbated by the wrong footwear.
In most cases, shin splints aren’t serious and go away with rest. However, if left untreated, they can develop into stress fractures.
Symptoms of shin splints can include:
- a dull pain along the front or inner part of your shinbone
- pain that gets worse when you exercise
- tenderness to the touch
- mild swelling
Shin splints often get better with rest or by cutting back on how frequently or how far you run. Additionally, supportive shoes with rigid heel counters and arch supports aid in the recovery and may prevent further symptoms.
5. Hamstring injuries
Your hamstrings help decelerate your lower leg during the swing phase of your running cycle. If your hamstrings are tight, weak, or tired, they may be more prone to injury.
Unlike sprinters, it’s fairly uncommon for distance runners to experience a sudden hamstring tear. Most of the time, distance runners experience hamstring strains that come on slowly and are caused by repetitive small tears in the fibers and connective tissue of the hamstring muscle.
If you have a hamstring injury, you may experience:
- dull pain in the back of your upper leg
- a hamstring muscle that’s tender to the touch
- weakness and stiffness in your hamstring
6. Plantar fasciitis
Plantar fasciitis is one of the most common foot injuries. It involves irritation or degeneration of the thick layer of tissue, called fascia, on the bottom of your foot.
This layer of tissue acts as a spring when you’re walking or running. Increasing your running volume too quickly can put your fascia under increased stress. Muscle tightness or weaknesses in your calves can also put you at risk of plantar fasciitis.
Symptoms typically include:
- pain under your heel or midfoot
- pain that develops gradually
- a burning sensation on the bottom of your foot
- pain that’s worse in the morning
- pain after prolonged activity
7. Stress fractures
A stress fracture is a hairline crack that forms in your bone due to repetitive stress or impact. For runners, stress fractures commonly occur at the top of the foot, or in the heel or lower leg.
If you suspect you have a stress fracture, it’s a good idea to see a doctor right away. An X-ray is needed to diagnose a stress fracture.
Symptoms of a stress fracture typically include:
- pain that gets worse over time, which may be barely noticeable at first but as the pain progresses, may be felt even when you’re at rest
- swelling, bruising, or tenderness in the area of the fracture
It generally takes 6 to 8 weeks to heal from a stress fracture, and you may need to use crutches or wear a cast for a period of time.
8. Ankle sprain
Ankle sprains are caused by overstretching the ligaments between your leg and ankle. Sprains often happen when you land on the outer part of your foot and roll your ankle over.
Common symptoms associated with an ankle sprain include:
- limited range of motion
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