Steroids

sport injury steroids performance enhancing drug

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.

We regularly read in news articles, the use of anabolic steroids or performance enhancing drugs by elite athlete. But you should know that these dangerous drugs are more and more used by children in college, high-school and middle school.

What

sport injury steroids performance enhancing drug

Anabolic steroids are synthetic derivatives of testosterone. Testosterone is a male sex hormone. Steroids help to create new proteins to increase the size and strength of muscles. The body is already doing this process naturally but steroids increase the activity of this normal process. Find performance enhancing drugs in communities, gyms or internet is easy.

Steroids are consumed orally or by injection. Anabolic steroids in themselves aren’t effective. However, when they’re used at the same time with a strength training, they increase the strength in an impressive way.

Side effects

sport injury steroids performance enhancing drug side effect acne

sport injury steroids performance enhancing drug side effect acne

sport injury steroids performance enhancing drug side effect acne

Performance enhancing drugs allow an athlete to have bigger and more powerful muscles, but users may have deadly health problems. Performance enhancing drugs have several side effects that continue to work even after you stop using them. Users are also more likely to have risky behaviors such as having unsafe sex or taking illegal drugs.

Symptoms of use of anabolic steroids are :

  • Acne (often severe) visible on the face and back

  • Severe mood change such as extreme aggression or suicidal behavior

  • Premature balding, breast enlargement (gynecomastia), irreversible shrinking of testicles in boys.

  • Deeper voice, shrinking breast and clitoral enlargement in girls

  • Dangerous enlargement of the heart that can increase bad cholesterol and blood pressure.

  • Irreversible liver damage

  • In children, premature closure of the growth plates, stopping normal growth of bones.

sport injury steroids performance enhancing drug side effect gynecomastia

sport injury steroids performance enhancing drug side effect gynecomastia

sport injury steroids performance enhancing drug side effect gynecomastia

A reason to take anabolic steroids

Anabolic steroids may be advisable for people who have lost testicular function like men with a testicular tumor. They’re also advised in some type of anemia to stimulate the bone morrow.

Prevent

The true is the problems of performance enhancing drugs aren’t solely related to elite athletes. Children are also exposed to this every day. Ask kids what they know about these drugs. Ask them if they know anyone in their school class who uses these drugs. Ask them if they know the dangers of these drugs. If you think that your children or children in your family might be experiencing these drugs, talk to your doctor.

It’s also important to talk to coaches and ask them if leagues or schools require annual physical exams for athletes. A physical examination by a doctor can detect the use of performance enhancing drugs in athletes (doping test). Ask coaches if any of their athletes have experienced performance enhancing drugs.

Stats

As many as four 4 American children and teens are using performance enhancing drugs such as anabolic steroids.

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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 .

Add Color

colors

I have just enrolled in a Data Science course on Udemy and I learned good stuff.

Podcast:

In the last article, we created our calculated field « TotalSales » that you can see in «Measure » zone.

In Tableau, the calculated field is very used (almost every time) because in most case the data don’t give the value you want to show.

The calculated field « TotalSales » is a simple example to make you understand how it works but know that you can do things more complex. I’ll show you that later.

In this article, I’ll show you how to manipulate colors because it’s an important element to communicate. With colors, people will understand more quickly what you want to explain to them.

Imagine that you have to show this bar chart to the manager who handles the bonuses. By putting a little color, a little art, you could improve the reading of this bar chart.

To use colors, click on this button.

data science tableau color

You can change the color with the basic colors.

data science tableau color

Or you can have more colors by clicking here.

data science tableau color

If you have a picture in the background, you have the possibility to change the opacity to have a transparent effect of colors.

data science tableau color

You can add a border, change the border’s color, etc.

data science tableau color

But what would be nice to do is to have bars with different colors.

To start, take « Rep » and move it on « Colors ».

data science tableau color

With this, there is a unique color for each representative.

data science tableau color

There is also another method to do that. Instead of taking « Rep » and moving it to « Color », you can click « Rep » here.

data science tableau color

If you move it to « Colors », you’ll break everything because « Rep » will no longer be in the « Columns » zone.

data science tableau color

To avoid this, press Ctrl or Command on your keyboard and click « Rep » to make appear the sign « + ». Now that you made a copy of « Rep », move it to « Colors ». It’s like making a copy/paste from « Rep » to « Colors ».

data science tableau color data science tableau color

With this method, « Rep » is always in the « Columns » zone. This is a method that is very practical when there are many dimensions.

It’s possible to change representative’s colors by clicking here.

data science tableau color

As you can see, there are several choices of palettes.

data science tableau color

You can test the « color blind » palette which is very useful for color blind people. To select this palette, click « Assign Palette » and « Apply ».

When a palette has fewer colors than representatives, you will have a message saying that some colors will be duplicated. But this is not a problem because there are names below the bars.

data science tableau color

Now we want to see something else with our bar chart. Press “Ctrl” or “Command” on your keyboard and click on SUM(TotalSales) to display the « + » sign. Then move SUM(TotalSales) to « Colors » to replace « Rep ».

data science tableau color data science tableau color

As you can see SUM(TotalSales) has different colors. The colors are on a continuous basis which means that the more sales there are, the darker the color.

For our case, this is not useful because the size of the bars represents the sales number but for other situations, this is useful.

The problem now is that there are duplicate colors and because of this, the Manager could misinterpret the results. An alternative approach would be to ensure that the Manager understands the results.

The solution is to take « Region » (by pressing “Ctrl” or “Command” on your keyboard) and move it to « Colors ».

data science tableau color

You can also take « Region » (with “Ctrl” or “Command”) and move it to SUM(TotalSales) to replace SUM(TotalSales).

data science tableau color

With that, the bars are colored by region.

data science tableau color

That way, you can clearly see the 3 regions through colors that are unique to each region and you can see the total sales per representatives with the size of the bar.

This is a small example so that you can understand the basics to manipulate colors in Tableau. There are still more complex techniques to manage the colors that I will show you later.

Plays with the colors so you can fully understand how it works. You could find your favorite palette and find your style. Have fun.

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

-Steph

Navigate In Tableau

front boat

I have just enrolled in a Data Science course on Udemy  and I learned good stuff.

We’ll explore Tableau’s tools

From the connection manager, we’ll go into the Tableau’s workspace.

Click on the « Sheet1 » tab at the bottom of the window.

data science tableau screenshot

Here is the Tableau’s workspace.

data science tableau screenshot

The 2 important elements of the workspace are « Data » on the left and the workspace on the right. It’s in the workspace that you’ll create tables and charts.

We’ll start with « Data » on the left.

data science tableau screenshot

« Data » divided into 2 zones : dimensions and measures.

The dimensions and measures are 2 different rules that will allow you to manipulate data.

Tableau sets the numerical values in « measures » and the categorical or quantitative variables in « dimension ». This is the Tableau’s settings by default.

There is also another way to explain « dimension » and « measures ». The « dimensions » are independent variables and the « measures » are dependent variables.

For exemple, « Units » is a measure, it’s the number of items sold per product. « Region » is a dimension, it’s the geographic region where the product sold. With 2 elements we can know how many items sold by region. This means that « Region » is an independent variable and « Units » is a dependent variable because it will be grouped by region.

But if you don’t like it, you can move the entities between dimension and measures and the opposite by click and drag.

In the menu bar, at the top, there is « File » where you can open and save file.

data science tableau screenshot

« Data » to connect to new source files.

data science tableau screenshot

« Worksheet » is the workspace to create analyzes

data science tableau screenshot

« Dashboard » is a combination of worksheet

data science tableau screenshot

« Story » is a combination of worksheet and dashboard

data science tableau screenshot

« Analysis » to specify how you want to do your analysis on your workspace

data science tableau screenshot

« Map » to add maps to the workspace

data science tableau screenshot

« Format » contains formatting options

data science tableau screenshot

Now, let’s study the workspace.

In the workspace, the main elements are « Columns » and « Rows ». This is where you decide which data goes in columns and rows in your worksheet.

You can also choose different format for these elements like colors, size, text level of detail and tooltips (useful tool optional).

data science tableau screenshot

Let’s do a test. Use data from « Region » (which is in « dimension »). Move « Region » with a click and drop to the center of your workspace. Now, « Region » is in the element « Rows ».

A table appears in your workspace.

data science tableau screenshot

You put a dimension in your workspace. Now put a measure in your workspace.

Uses the « Units » data. Move « Units » with a click and drop next to the « Region » column.

data science tableau screenshot

As you can see, Tableau automatically put « Region » in the « Rows » element and the « Units » data aggregated by region. In this way, you can tell how many items were sold by region.

Now, what you can do is to move « SUM(Units) » to the « Columns » element.

data science tableau screenshot data science tableau screenshot

And then, you have a « bar chart » to see how many items have been sold by region. You can enlarge the graphic with a click and drop.

Let’s look at the tools that are in « Show Me » zone.

data science tableau screenshot

Click on « Pie chart » to have this chart’s type.

data science tableau screenshot

Click on « Size » icon and drag from left to right you can increase the chart’s size.

data science tableau screenshot

In this chart, each region has a color and proportion of items sold by region.

You can also test the « bubble chart ». Tableau organizes the data automatically and everything and placed in the « Marks ».

data science tableau screenshot

You can test « Treemaps » chart. This is the same principle as « bubble chart » but it’s rectangles instead of circles.

data science tableau screenshot

As you can see in « Show Me », there are charts disabled. This is because you need some elelments in your data to be able to activate them.

For example for the « Area chart », you need « date »data to activate it.

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

-Steph

Shoulder Injury (Part 2)

shoulder

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

Dumbbell bench press with elbows along the body to continue training with a shouler injury

Dumbbell bench press with elbows along the body

It’s one of rare exercice to do when you have a shoulders injury, subacromial bursitis

Do dumbbell bench press with elbows along the body work, the anterior bundles of the deltoid and, a little bit, its middle portion to avoid an excessive friction at the front of the shoulders.

Do it regularly, it allows you to keep shoulders voluminious and tonic in spite of a local pathology. And it can use as a rehabilitation movement after a tear of pectoralis major muscle. Keep elbows along the body reduces stretching of pectoral major muscle limiting the risk of tearing of the injured area.

Exercice execution  :

Lying on a bench, your chest out and your back slightly arched. Your elbows flexed and along your body with a dumbbell in each hand :

  • Inhale and push your arms vertically

  • Exhale at the end of the movement

  • Return to the initial position by controlling the movement

Influence of bone morphology on back press

It’s important to take into account the individual differences in morphology when you’re training shoulders with back press.

Arm size

Arms lenght and especially forearms, plays a fundamental role in the execution of the exercice.

People with proportionately long forearms will descend their elbows much lower than those with proportionately short forearms.

This excessive elbow descent has the effect of streching the deltoid strongly, placing it in an unfavorable position that doesn’t allow the muscle to recruit the maximum amount of fiber to start the push powerfully.

Clavicles width

Clavicles width has a influence on the possibility of correctly lowering the barbell behind the neck.

Short clavicles invariably bring the two shoulder blades towards the vertebral axis. It follows that during the back press, when the two shoulder blades tilt towards the inside of the back, their displacement is substantially reduced by the compression of the trapezius and rhomboid muscle which fill the middle of the back, which limits at the same time the possibility of descendent correctly elbows to well feel deltoids work.

In addition, it’s important to note that more you have big muscles in the center of the back, the less the shoulder blades will be able to get closer and the lower the barbell behind the neck will be limited.

Note : Indivuduals with long forearms and narrow clavicles should have an interest in avoiding the back press to properly work deltoids.

back press anatomy

Attention

Too much space between the glenohumeral joint and the acromio caraoidal osteo ligamentary vault can lead to excessive friction when the humerus is raised in external rotation. With time, risk to damage, even tear, the supra-spinous tendon. With back press, it’s therefore important with the slightest sensation of discomfort in shoulders, accompanied by pain, to change movement in order to avoid a degenerative rotator cuff’s tendinitis.

A too small space between the gleohumeral joint and the acromio caraoidal osteo ligamentary vault can cause, during the arms elevation – when the humerus is carried this time in internal rotation (as with dumbbell lateral raise), excessive rubbing which may damage the infraspinatus tendon.

-Steph

P.S. Do you want a free training program ? Click here