Heat Illness

heat illness

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

Every summer, hundreds of people experience sun-related illnesses and heat. Being prepared and hydrated avoids theses situations.

Why

When an athlete exercises, his/her body temperature increase and the body sweats to cool the body. During this process, body fluids and electrolytes are lost. If the boy is not recharged with fluids and electrolytes, it’s dehydration and it increase the risk of heat illness as a heat stroke.

Symptoms

Symptoms are :

  • Chills

  • Dark colored urine

  • Dry mouth

  • Headaches

  • Thirst

  • Weakness

If the heat illness progress, there are more serious symptoms like :

  • Difficulty breathing

  • Body temperature increasing to dangerous levels

  • Muscle cramps

  • Nausea

  • Tingling of the limbs

  • Death

How to prevent

The most effective treatments for heat illness are :

  • Proper training for the heat

  • Fluid replacement before, during, and after exertion

  • Appropriate clothing (light colored, loose fitting and limited to one layer)

  • Early recognition via direct monitoring of athlete by other players, coaches and medical staff

  • Monitoring the intensity of physical activity appropriate for fitness and how an athlete has acclimated to conditions.

  • If possible, having an athletic trainer on site during events and practices to properly prevent and treat heat illnesses.

In situations where the training program is intense or during a trip in a hot climate, an athlete should limit the intensity and duration of the training session. Thereafter, the athlete will increase the training’s intensity for a period of 7-14 days to allow to the body, the time to adjust to the climate and environmental conditions. For athletes with respiratory, gastrointestinal or other diseases, they should especially evaluate these new conditions.

When an athlete should hydrate

hydrate

It’s necessary to hydrate before, during and after a training session. Drinking 47cl (16 ounces) of water is recommended 1 hour before exercises. Hydration should continue with 11-23cl (4-8 ounces) of water every 15-20 minutes throughout the effort

There is a trick to track the hydration’s level is to weigh before and after a physical activity. If the athlete is lighter after a physical activity, this means that there a deficit of fluids (indicated by weight loss) and it’s necessary to recharge them. For the next physical activity, it will be essential to drink more to evaluate the losses (perspiration). An athlete who loses more than 2-3% of his/her bodyweight during exercise may decrease the performance and the body’s physiological function.

If the athlete is heavier after a physical activity, it means that there is a surplus of fluids (indicated by gain weight). For the next physical activity, it will be essential to drink less to evaluate the surplus.

How to treat it

When you see signs of heat illness or heat stroke, it may be an imminent danger of death. It’s necessary that a person immediately call for medical assistance while you’re cooling the person at risk.

Treatment included :

  • Getting the athlete to a shaded area

  • If it heat stroke, cool the athlete rapidly using cold water immersion. If immersion is not available you may use spray from a hose, cold water sponging, or placing cold towels over the entire body

  • Monitoring body temperature

  • Providing cool beverage if possible (i.e., if the athlete doesn’t have altered consciousness).

  • Getting medical assistance as soon as possible.

Heat exhaustion is a type of heat illness that can happen after several days of exposure to high temperature and improper or unbalanced fluid recharging.

Statistics

  • Heat stroke is a type of serious illness related to heat. It can cause death to athletes and this is probably the leading cause of athlete death during the months of July and August.

  • The body produces 1.8 liters (a half of gallon) of perspiration to cool the body every hour. If there are not enough fluids or the heat is overwhelming the body, the person may develop heat-related illness.

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-Steph

P.S. If you’re in Miami and you like Caribbean food, go to my cousin’s bistro to eat Haitian food, click here.

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.

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-Steph

Spinal Disc Herniation

disc herniation

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

First we can say : « disc herniation » or « herniated disc » but I prefer use « disc herniation » in my article.

Disc herniation is a common pathology in bodybuilding. This often occurs because of poor back placement during exercises such as squat, deadlift and rows (barbell bent row, seated row, etc).

During the execution of theses exercises, the main defect observed is the rounding of the back or a flexion of the spine. Because of that discs are pinched forward and loosened backward.

disc herniation

If an intervertebral disc cracked or aged, the gelatinous fluid of the nucleus pulposus moves backwards and can compress the spinal cord or roots of the spinal nerves. The symptoms of a disc herniation depends on the nature of the lesion, the amount of nucleus displaced and the surface that nucleus compresses.

The disc may have a bump or even worse, the nucleus may explode through the surrounding annulus fibrosus. It’s also possible that the posterior ligament that joins the vertebrae to each other is broken. The compressions caused by the rupture of the annulus fibrosus are always painful and incapacitating.

In bodybuilding, disc herniation are mainly at the lumbar level. Often between the 3rd and 4th lumbar vertebrae or between the 4th and 5th lumbar vertebrae. The pain is dull and deep and sometimes with numbness and tingling. Often the pain is in the middle of the back or on one side. The pain extends onto the glutes, pelvis and pubis. Sometimes pain can be felt throughout the leg following the path of the sciatic nerve because the sciatic nerve is compressed at the root (hence the name of sciatic to define this type of pain).

disc herniation sciatic nerve

Usually disc herniation resolve spontaneously and the pain gradually disappears. But in some cases the bump on a vertebral disc doesn’t disappear and can continue to painfully pres on the nerves or it’s a loose piece of intervertebral cartilage that compresses the nervous elements.

In these 2 cases, the doctor will think of doing a surgical operation to remove the part that compresses the nerves.

To avoid having a disc herniation, it’s essential to do squat, deadlift, « good morning » and rows (rows, barbell bent row, seated row) with excellent positioning technique.

Attention

For all exercises done with very heavy weight, it’s necessary to perform a « blocking » :

  1. Take a deep breath and block the breathing to fill the lungs like a balloon. This stiffens the ribcage and prevents the top of the torso form tilting forward.

  2. Squeeze abs stiffens the belly, This increases the intra-abdominal pressure and prevents the torso from sagging forward.

  3. By slightly arching the lower back with lumbar squeeze, this allows to have the spine’s bottom in extension.

These 3 simultaneous actions is what we call « blocking ». This « blocking » has the function of avoiding the rounding or bending of the spine because with very heavy weights, it can create disc herniations .

Note

After a training session with very heavy weights, it’s advisable to do stretching for the spine. There is an excellent exercise to relax the back muscles and rebalance the pressure inside the intervertebral discs. Click here .

Bad position

disc herniation bad positon squat deadlift

For exercises such as deadlift or squat, it’s important not to round your back to avoid lower back injuries.

Disc herniation

disc herniation

Flexion of the spine with heavy weights can create disc herniations at the level of the lumbar vertebrae.

These disc herniations are common at squat and deadlift. This is caused by a bad back position during exercise. That’s why it’s important to work the technique for these exercises.

Disc herniation according to the age

disc herniation intervertebral

From the age of 30 years old, intervertebral discs degenerate and don’t worry, it’s normal, The annulus can crack and the nucleus pulposus dries progressively.

Vertebral discs of people over 30 years old are more rigid, less elastic and the mobility of the spine is more limited. But as the viscous gel of the nucleus pulposus deacreases due to drying, the risk of the vertebral discs moving and compressing the nerves diminished.

Vertebral discs of people under 30 years old are more flexible, more elastic and there is more mobility with the spine. There is a greater amount of viscous gel in the nucleus pulposus which increases the risk that vertebral discs will move and compress the nerves. Disc herniation is very common among young athletes.

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

-Steph

Neck Position

neck

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

In bodybuilding, having a bad neck’s position during an exercise can create neuralgia.

These neuralgias are numbness of the arm with tingling.

These sensations arrive a few days after doing exercise like dips, pec deck rear deltoid lateral, squat and deadlift. The cause is that the exercises were done with the neck extension, head back.

dips bad neck position

The truth is that the head back’s position triggers spasms and contractions of the deep muscles of the neck, which creates compression of the spinal nerves at their exit from the cervical vertebrae.

This compression creates a neuralgia that usually affects the brachia plexus around the vertebrae C4, C5, C6, C7, C8 et T1 (C for cervical and T for thoracic).

plexus brachial

Solution

Do dips or pec deck rear deltoid lateal with head forward by bringing your chin to your chest. This avoids these neuralgias.

neck position

Do deadlift or squat with your head straight (neutral position) looking forward. This avoids these neuralgias.

If the neuralgia installed, it’s important to stop any exercise with the head back (neck extension).

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

-Steph