Concussion

concussion
A blow to the head that makes the brain hit the skull

What’s up ? This is THE stephane ANDRE. With my training, I’m interessed in biomechanics to avoid injuries. I read « Sport Medicine Media Guide » and I learned some good stuff.

A concussion is a traumatic brain injury that alters mental state or creates others symptoms. Many people think they have no concussion because they have not lost consciousness. You must know that it’s possible to have a concussion without losing consciousness. Often football or rugby players say : « I just got my bell rung » when they have been hit on the head that makes the ears rings, but these symptoms are often consistent with concussion.

Signs

  • Balance problems

  • Difficulty communicating, concentrating

  • Dizziness

  • Drowsiness

  • Fatigue

  • Feeling emotional

  • Feeling mentally foggy

  • Headache

  • Irritability

  • Memory difficulties

  • Nausea

  • Nervousness

  • Numbness or tingling

  • Sadness

  • Sensitivity to light or noise

  • Sleeping more than usual or difficulty falling asleep

  • Visual problems (blurry or double vision)

  • Vomiting

Diagnostic

diagnostic

As soon as a concussion is suspected, a trained coach, certified athletic trainer or the team physician should immediately perform an initial « sideline » evaluation, including :

  • Symptoms list review

  • Focused neurological exam

  • Focused orientation exam that tests short-term memory recall such as the event, play, opponent, score or last meal.

  • Focused orientation exam that tests long-term recall such as name, birth date, place of birth.

  • Assessment of athlete’s ability to stay attentive to a complex task such as reciting months backwards.

If a person is suspected of having a concussion and there is no diagnosis, a concussion may place an athlete at risk of developing second impact syndrome. It’s a potentially fatal injury that occurs when an athlete suffers a second head injury before the old head injury has completely healed.

Second impact syndrome

Second impact syndrome is a potentially fatal injury that occurs when an athlete suffers a second head injury before the old head injury has been fully healed. Unfortunately, it’s complicated to know if the brain has been healed from the first injury. Even after all symptoms resolved, it’s possible that the healing isn’t complete and that it increases the risk to the brain of having the second impact syndrome. Neurocognitive testing can help doctors or physician decide when the athlete can return to the competition in the best conditions.

Neurocognitive testing

Neurocognitive testing

Neurocognitive testing is a questionnaire (usually on the computer) that athletes do that deals with several areas of brain function, including memory, problem solving, reaction times, brain processing speed and post-concussion symptoms. It’s most valid if the athlete has a pre-injury baseline test on file to compare the post concussion test. This information can be really helpful for the doctor or physician to decide when the athlete can return to the competition.

When to return to the competition

All athletes suffer concussion (whatever the gravity) should pass an evaluation by a qualified health care provider before returning to the competition. Athletes should return to competition after they have been completely cleared of all concussion symptoms and have no symptoms during and after physical tests.

Baseline testing is important for assessing concussion symptoms after an incident. The baseline testing often includes neurocognitive tests, symptom checklists, sideline assessment tools such as the Sideline Concussion Assessment Tool and balance testing.

Statistics

  • Athletes who have already had a concussion are more likely to have another concussion.

  • Children and teenagers are more likely to have concussion and take longer to heal than adults.

Subscribe to my newsletter and share this article if you think it can help someone you know. Thank you.

-Steph

Please follow, like and share:

Rupture Of The Pectoralis Major

rupture, tear, pectoralis, major, tendon

I read a Frederic Delavier’s book « Strength Training Anatomy » and I learned good stuff.

Pectoralis major begins on the anterior surface of the thoracic cage and its insertion is to the anterior surface of the upper end of the humerus.

Pectoralis major is a muscle which has the function of bringing the arm forward in front of the rib cage which make it possible to make hugs.

Bench press can create small tears at the pectoralis major which can sometimes cause a partial rupturing of its tendon (around upper chest).

This partial rupture of the tendon occurs in powerful athletes who have gained an abnormally rapid strength, which didn’t allow time for tendons to strengthen. This injury can also happen to athletes who make a « dry » diet, so a low-calories diet to better make muscles more visible. These low-calories diets weaken joints, tendons and muscles.

The wound always arrives during a bench press and affects only the clavicular head of pectoralis major.

The rupture of the tendon can be so painful that the athlete may lose consciousness. Often a tumefaction with eccymosis apprears on the anterior surface of the arm and the retraction of the clavicular head create a hollow around the upper chest.

Diagnostic error

how much

A problem that very often happens with this wound is that doctors, after diagnostic, considers it to be gravity-free. This is an understandable mistake because during the diagnostic, the injured person can make all movements related to the pectoralis major’s motor function. It’s for this reason that doctors consider this wound as a simple muscle tear rather than a ruptured tendon or a severe muscle tear.

Indeed, many muscles compensate the functional loss of clavicular head of pectoralis major to continue to move the arm. I spit of the rupture of the clavicular head of pectoralis major, it’s possible to raise the arm forward by the sternal portion (middle chest) and abdominal portion (lower chest) of the pectoralis major which also compensates.

When there is rupture of the pectoralis major, it’s necessary to have it reinserted as quickly as possible on the humerus with a surgery operation.

If not done as quickly as possible, there is retraction and fibrous transformation of the muscle. In this case, surgery is no longer feasible.

It’s true that the injured person can still move his/her arm without the upper portion of the pectoralis major but the injured person can never regain its initial strength and will be seriously handicapped to continue to do heavy bench press.

Share this article if you think it can help someone you know. Thank you.

-Steph

Please follow, like and share: