A tendon is a tough yet flexible band of fibrous tissue. The tendon is the structure in your body that connects your muscles to the bones. The skeletal muscles in your body are responsible for moving your bones, thus enabling you to walk, jump, lift, and move in many ways. When a muscle contracts it pulls on a bone to cause movements. The structure that transmits the force of the muscle contraction to the bone is called a tendon. Tendons come in many shapes and sizes. Some are very small, like the ones that cause movements of your fingers, and some are much larger, such as your Achilles tendon in your heel. When functioning normally, these tendons glide easily and smoothly as the muscle contracts. Sometimes the tendons become inflamed for a variety of reasons, and the action of pulling the muscle becomes irritating. If the normal smooth gliding motion of your tendon is impaired, the tendon will become inflamed and movement will become painful. This is called tendonitis, and literally means inflammation of the tendon.
The cause of paratenonitis is not well understood although there is a correlation with a recent increase in the intensity of running or jumping workouts. It can be associated with repetitive activities which overload the tendon structure, postural problems such as flatfoot or high-arched foot, or footwear and training issues such as running on uneven or excessively hard ground or running on slanted surfaces. Tendinosis is also associated with the aging process.
Symptoms of Achilles Tendinitis include the following. Pain and stiffness along the Achilles tendon in the morning. Pain along the tendon or back of the heel that worsens with activity. Severe pain the day after exercising. Thickening of the tendon. Bone spur (insertional tendinitis). Swelling that is present all the time and gets worse throughout the day with activity. If you have an Achilles tendon rupture, you might feel a pop or snap, accompanied by a sharp pain behind your ankle. You are likely to have difficulty walking properly. If you have ruptured your Achilles tendon then surgery is likely to be the best treatment option.
A doctor or professional therapist will confirm a diagnosis, identify and correct possible causes, apply treatment and prescribe eccentric rehabilitation exercises. An MRI or Ultrasound scan can determine the extent of the injury and indicate a precise diagnosis. Gait analysis along with a physical assessment will identify any possible biomechanical factors such as over pronation which may have contributed to the achilles tendonitis and training methods will be considered. Biomechanical problems can be corrected with the use of orthotic inserts and selection of correct footwear.
With proper care for the area, the pain in the tendon should lessen over three weeks, but it should be noted that the healing of the area continues and doesn’t even peak until at least six weeks following the initial injury. This is due to scar tissue formation, which initially acts like the glue to bond the tissue back together. Scar tissue will continue to form past six weeks in some cases and as long as a year in severe cases. After 6 months this condition is considered chronic and much more difficult to treat. The initial approach to treating Achilles tendonitis is to support and protect the tendons by bracing any areas of the tendon that are being pulled on during use. It is important to loosen up the tendon, lessen the pain, and minimize any inflammation.
Surgery is considered the last resort. It is only recommended if all other treatment options have failed after at least six months. In this situation, badly damaged portions of the tendon may be removed. If the tendon has ruptured, surgery is necessary to re-attach the tendon. Rehabilitation, including stretching and strength exercises, is started soon after the surgery. In most cases, normal activities can be resumed after about 10 weeks. Return to competitive sport for some people may be delayed for about three to six months.
While it may not be possible to prevent Achilles tendinitis, you can take measures to reduce your risk. Increase your activity level gradually. If you’re just beginning an exercise regimen, start slowly and gradually increase the duration and intensity of the training. Take it easy. Avoid activities that place excessive stress on your tendons, such as hill running. If you participate in a strenuous activity, warm up first by exercising at a slower pace. If you notice pain during a particular exercise, stop and rest. Choose your shoes carefully. The shoes you wear while exercising should provide adequate cushioning for your heel and should have a firm arch support to help reduce the tension in the Achilles tendon. Replace your worn-out shoes. If your shoes are in good condition but don’t support your feet, try arch supports in both shoes. Stretch daily. Take the time to stretch your calf muscles and Achilles tendon in the morning, before exercise and after exercise to maintain flexibility. This is especially important to avoid a recurrence of Achilles tendinitis. Strengthen your calf muscles. Strong calf muscles enable the calf and Achilles tendon to better handle the stresses they encounter with activity and exercise. Cross-train. Alternate high-impact activities, such as running and jumping, with low-impact activities, such as cycling and swimming.