How To Do Sumo Deadlift

sumo deadlift

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

Standing with the barbell on the floor in front of you. Your legs spread with your feet outside (always in your knees axis) :

  • Bent your legs to have your thighs in horizontal. Your arms are straight, you take the barbell with a pronated grip. Your hands on the barbell are to your shoulders’ width. You have the possibility to have one hand with a supinated grip and the other with a pronated grip to prevent the barbell from rolling. And with this technique, you can lift an extremely heavy weight.

  • Inhale and block your breath. Arch slightly your back, squeeze your abs and you stretch your legs by straightening your torso to have a vertical position with your shoulder drawn back. Exhale at the end of the movement.

  • Put back the barbell on the floor by blocking your breath.

It’s important to keep your back straight during all the movement to avoid injury.

This exercise works especially quadriceps muscles and adductor muscles.

This exercise works less the back’s muscles than the classic deadlift because the back is less bent at the starting position.

Note

It’s important to lift the barbell in front of your shins at the beginning of the movement.

Do this exercise with light weights and high sets (maximum 10 sets) to strengthen the lumbar’s region by working thighs and gluteus.

If you do this exercise with heavy weight, you need to be careful to not trauma hips joints, adductors muscles, and lumbosacral junction.

The sumo deadlift is one of the 3 powerlifting’s movements.

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

-Steph

Deadlift Correctly (Part 3)

deadlift

If you didn’t read the first parts, click Part 1 and Part 2 

I read a Nerd Fitness article and I learned good stuff.

Grip the barbell

deadlift grip

The strength of the grip is an important part of the deadlift. There are 2 types of grip:

  • Overhand grip => The palms of your hands are towards your body (pronated grip).

  • Over-under ou mixed grip => One palm of your hand is toward your body and the other towards the outside (one hand with a pronated grip and the other with a supinated grip).

  • Hook grip => Your thumb is under your fingers

For beginners, the double overhand grip is the best to have a safe grip.

Use the mixed grip when you have more experience and you lift heavy because there are disadvantages. Stress on the shoulders is uneven and can create problems or injuries in the biceps whose palm is outside. As the stress on the shoulders is uneven, it’s easier to lift heavy weights.

When you begin deadlift, your grip’s strength is powerful enough to lift the barbell because your back’s strength is correct. The day of your back’s strength is more powerful than your grip’s strength (your hands slips slowly), that’s when you need to think about improving your grip.

If you don’t like the mixed grip, you can use the hook grip.

Wrist straps

Straps can help you lift heavier because your grip is assisted by a strap that is wrapped to the barbell and is hooked to your wrist.

I advise you to use wrist straps only when you lift very very heavy. This is not a thing to use all the time otherwise you’ll lose the natural strength of your grip.

Gloves

The truth is that the gloves don’t improve the grip. Gloves create a space between your hands and the barbell, this increases the diameter of the barbell and make the barbell harder to hold. Gloves prevent you from having a secure grip, I advise you to use them only if you have ripped callus to your hands.

With this video , you’ll learn to take care of your hands to avoid having this type of injury.

Belt

Many people in gyms use the belt in the wrong way, but you’re a smart one. The belt is useful only when you’re lifting very heavy weights and it’s not only for your lumbar. With this article , you’ll learn how to use the belt in an effective way.

Note

Use a mixed grip and a belt isn’t necessary to lift very heavy. Watch this video of Anthony Mychan  who do a deadlift at 249.47kg (550lbs) at a Nerd Fitness Camp with a double overhand with no belt.

Common mistakes

common mistakes

Rounded back

Having the back rounded throughout the movement may cause injuries. It’s necessary to have your spine in a neutral position.

Note => there are some powerlifters that purposefully round theirs upper back to decrease the range of motion, but this is a sport specific move, still a fault, and something you should not consider as a beginner.

Head raised and look up

To have a raised head create a hyperextension to your neck. This can cause injuries. Keep your head in a neutral position like your spine.

Hyperextending at the top

In fitness competitions, exaggerate the top of the deadlift has become popular for quickly show the judges that hip and knees locking is done.

Use the squat position

Deadlift is not squat. Deadlift doesn’t have the same start and end position as the squat. Deadlift is a different movement than squat.

Barbell makes a forward movement

It’s necessary that the barbell stays above your shoe’s laces and the barbell needs to be lifted vertically all along your body.

Barbell’s movements towards the front are to be avoided.

Your torso rises after your butt

We call it the « stripper deadlift ».

It’s important that your torso guides the movement and that your body moves in the same rhythm upwards.

Bend your arms

Often people bend their arms to lift the barbell more quickly. Unfortunately, this is a bad tactic because this can tear biceps muscle. Keep your arms straight during the movement.

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

-Steph

Deadlift Correctly (Part 2)

deadlift

I you didn’t read the Part 1, click here

I read an Nerd Fitness article  and I learned good stuff.

Setup

As you know, there are several versions of deadlift that can match your training goals or your body type but the conventional deadlift is great for starting to learn the basics.

Attention : It’s important to do 1-2 sets warm-up with the barbell without weights. As with squat, this warm-up allows you to prepare joints and muscles.

  • Adds weights and uses collars for safety

    If you’re a beginner, only use 2-26-4.6kg (5-10lbs) plates to make easy to adjust the weights on the barbell. When you have better understood the movement and how your body reacts you can use plates of 20kg (45lbs).

  • Stand with your feet at the width of your hips

    The spacing of your feet is about 20-30cm (8-12 inches) and your toes are slightly outside about 5-10 degrees.

  • Look at the ground

    Place your feet under the barbell so that the barbell almost touches your ankles. The barbell must be on the node of your laces

  • Without moving the barbell or your hips

    Lean forward to take the barbell. Your legs are slightly bent. Your hands should be slightly outside your legs without touching them.

  • Hold the barbell

    Move your hips down so your shins touch the barbell. Stop moving your hips when your shins touch the barbell. Squeeze your torso and keep your back straight to have your back in a neutral position.

  • Your back in a neutral position

    Your back shouldn’t be rounded or hyper extends. If you feel like you don’t have your back in a neutral position, don’t hesitate to ask a friend or a gym’s member to make a video of you with a smartphone while you’re doing deadlift. This will allow you to correct your technique.

    In addition to your spine, uses the upper back’s muscles to help to lift your chest up (swagger).

    Your shoulders should be slightly in front of the barbell and your arms should be straight and perpendicular to the ground.

As each person has unique body, the person next to you will have a different starting position than you and this is normal. Think about it : if a person has long arms, will this person have exactly the same position as a person with short arms ? No.

Deadlift

deadlift movement

  • Ready to lift

    Be focus and squeeze all your body’s muscles

  • Deep breathing

    Take a deep breath and keep your chest up with all your body squeezed ant put all the weight on your heels and on the ball of your feet.

    Imagine driving your feet through the ground.

Here are the important points in this part of the movement :

  1. All the weight must be on your heels and on the ball of your feet. During the movement, you should be able to move your toes.

  2. Your whole body moves slowly at the same speed. Your butt shouldn’t get up faster than your torso.

  3. Be focused on directing your torso and putting the weight on your heels.

  4. Your arms should stay straight during the movement. Your arms only serve to hold the barbell, not pull it.

  5. The barbell stay in contact with all your body. The barbell is a few millimeters from your legs while your lift it. Powerlifters put socks on their shins and chalk or baby powder on their thighs to avoid cuts and scratches The barbell’s trajectory during the movement is a vertical straight line.

  6. Squeeze your glutes. When the barbell goes over your knees, squeeze your glutes to move your hips forward.

  7. When you stand, open your chest as if you’re proud (like a king/queen). Keep your spine in a neutral position (straight back) and all your body tight.

To lower the barbell

As with lifting the barbell, all your body needs to move at the same time.

Your body is always contracted, unlocks your hips and knees and lower the barbell by controlling the movement slowly.

If you unlocks your knees first, you’ll do weird movements that will force you to round your lower back.

deadlift low back rounded

Keep your body contracted until the barbell touches the ground. The majority of deadlift injuries appear during the descends of the barbell. People are so pleased to have lifted a heavy weight that they relax their bodies and lower the barbell with poor technique. It’s important to control movement with your contracted body throughout exercise.

Note

In deadlift the most risky moment is the eccentric part (descending the barbell). This is the part that will give you the most DOMS (delayed onset muscle soreness).

That’s why several personal trainers advise their athletes to throw the barbell on the ground, especially for athletes who must be at 100 % for a competition in a few days.

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

-Steph

Deadlift Correctly (Part 1)

deadlift

I read an Nerd Fitness article  and I learned good stuff.

I see there are many people who are avoiding deadlift because they are afraid of getting hurt. It’s funny, it’s like squat.

Doing deadlift with good a technique is excellent for health, it allow your to have stronger joints and a stronger posterior chain.

All exercises can be dangerous when they don’t do with the proper technique, which is why it’s important to seriously study each exercise.

Why

why

In workout programs, you can find the deadlift in the day of legs of back. This can be disturbing but the truth is the deadlift is a polyarticular exercise.

The deadlift (polyarticular exercise) works several different muscle’s group :

  • Your hands, your forearms, your arms to keep the barbell in the right position and the barbell is stable during the movement.

  • Your shoulder and trapezius help to hold the weight and keep it stable.

  • Your back and core help to keep your body tight and stable so that your spine is safe.

  • Your posterior chain  and your legs act as lever to lift the weight.

What is interesting is that deadlift is a basic human movement like the squat. It’s a « functional » movement that we do every day to take an object on the ground. Lifting a chair or taking a bag on the floor is deadlift.

Training yourself to do deadlift with a good technique at the gym, will allow you to do these daily tasks by decreasing the risk of injury. I imagine you’ve seen a person hurt his/her back by lifting something off the floor. It happened because the technique was bad.

Let things be clear, everyone needs to do deadlift. Look at that grandmother 

grandmother deadlift

Also, deadlift is the purest way to measure the strength. You lift or you can’t. Sometimes with gym’s members, we do a deadlift party, it’s fun.

Choose

Attention : if you have spinal injuries, go see your doctor before starting

The origin of the word « deadlift » is : you lift dead weight (motionless) of the ground.

In short, you take a barbel with weight and you get up with the barbell in your hands until your shoulders, hips and knees locked. Your arms should be straight during the whole movement and when you’re standing, the barbell is at the level of your hips.

Here are the different type of deadlift most common :

Conventional Deadlift

conventional deadlift

Your hands are at your hips width, outside of your feet.

Sumo Deadlift

sumo deadlift

You have a wide position with your hands inside of your feet.

Hex or Trap Bar Bar Deadlift

hex trap bar bar deadlift

You need to use a special bar. In this way, you make the movement with another biomechanics.

Snatch Grip Deadlift

snatch grip deadlift

You use a wide grip like to do a Snatch.

Straight Leg Deadlift, Stiff Legged Deadlift, Romanian Deadlift

Many people are troubled by these variants. Here is an excellent article by Bret Contreras to see it in detail. Click here .

Deficit Deadlift, Rack Pulls

deficit deadlift rack pulls deadlift

These accessory movements allow you to increase or decrease the range of motion.

Dumbbell Deadlift Variations

dumbbell deadlift

You can do this when you don’t have access to a barbell and weights or as accessory movement.

In this article, I refer mainly to conventional deadlift.

Now, let’s talk about equipment :

Flat shoes

Converse Chuck Taylor Classic  are good (this is what I use). There’s also Vibrams, you can do in socks or with Powerliters shoes.

Chalk

chalk

This is optional but it can help you to not let your hands slip when you lift very heavy weights.

Deadlift can be taught in 1-2 sentences but there are complexities at different steps of the movement that you should know to avoid injury. I will develop this in the next parts.

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

Connect Tableau Public To A CSV File

tableau connect file csv data science

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

After downloading the file « OfficeSupplies.csv », you will open this file with Tableau. When you open Tableau, there is a « Connect » column :

tableau connect file csv data science

Click on « Text File » and open the file « OfficeSupplies.csv » :

tableau connect file csv data science

The connection manager appears for this source file :

tableau connect file csv data science

At the top left, there is « Connect » where the file is located and below it, there is « File » with 1 file. There is 1 file because you imported 1 file. I’ll show you later how to import several files of the same type.

tableau connect file csv data science

In the center, there is a window with the files you connected. And it’s possible to connect several files.

tableau connect file csv data science

For exemple, if you do a drag and drop here, Tableau will try to connect these 2 files.

tableau connect file csv data science

You can work with data comes from several differents files, different tables from different CSV files. We’ll see that later.

At the bottom, there is a preview of the file with columns and rows. Colums « Order Date », « Region », « Rep » and « Items » identified as data in text format. Columns « Units » et « Unit Price » identified as data in number format.

tableau connect file csv data science

Now you’re gonna go on the dashboard. To access it, click here.

tableau connect file csv data science

Here is the dashboard. 

tableau connect file csv data science

We will discuss the various function in more detail in the next section.

Now, I just want to show you that we have « Data » column with our source file.

tableau connect file csv data science

If you do a right-click and click on « View Data », you see the data as in the previous window.

tableau connect file csv data science

tableau connect file csv data science

You’ve seen, it’s simple to connect a source file to Tableau.

Wait, I’ll show you how you can connect more source files. Click here to return to the connection manager where you can connect several different files.

tableau connect file csv data science

Of if you want to stay on the dashboard, you can click on the top left on « Data » then « New Data Source ».

tableau connect file csv data science

Or click on this icon on the dashboard. Here are the files types you can connect to Tableau

tableau connect file csv data science

What is interesting with the « Statistical File » is that we can connect files type SAS, SPSS and R.

tableau connect file csv data science

We have access to different server with OData and others.

tableau connect file csv data science

It’s perfect, now you can connect a data source to Tableau and you’ll see later how to connect data faster.

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

-Steph

Squat Correctly (Part 3)

squat

Classical errors

I read a Nerd Fitness article  and I learned good stuff.

Click here to read Part 1 and Part 2 

Squat is a movement that we make since baby, it’s a basic movement. But when I started to do squat with weight, I make mistakes and I’m going to talk about the classical mistakes we make when we’re newbies.

Put all the weight on your toes

You need to have your heels glued to the floor throughout squat. This is important for spreading your bodyweight and weights on the barbell.

You also distribute part of the weight on the balls of your feet but it’s not the total weight. You should be able to move your toes in all directions during the squat.

The total weight (your bodyweight + weight on the barbell) is divided between the ball of your fee and your heels.

Don’t squat down too low

Your squat should go down at least until your hips joint are below your knee (parallel).

Maybe you have a special training that asks you to make a lower squat, it’s up to you to see. But making a parallel squat is enough to work your muscles well.

When you do a partial squat , so you have a squat above the parallel, you’ll work more your quadriceps than your hamstrings, in addition you put a lot of stress on your knees. The more you squat down, the less pressure you put on your knee.

Very, very often, people make a connection between squat and knee problems. Unfortunately, it’s a negative myth, a lie that makes people afraid of squat. For exemple, a gym member saw me with my knee wrap and said : « Be careful when you squat, you’re going to hurt yourself ! ». But does he know that my knee wrap increase my squat’s performance by 5-10 % ? I don’t think so. Here are some interesting articles here  and there .

The more you squat down, the more you work your glutes. But when we squat down, we have to go back up. And more we go down and more it’s harder to go up (strength and flexibility). The squat in parallel (your hips joints below your knee), it’s enough.

If you have trouble to squat down at the parallel, it could have several causes : little mobility to your ankles, to your hip flexor or your hamstrings ; weak glutes ; poor pelvic alignment (among many other things).

Knee position

squat knee position

To do a good squat, you must have your knees aligned with your toes. As the body of every human being is unique, the position is slightly different from one person to another but your knees shouldn’t be too much outside or too much inside. Your knees are more or less in the center.

Back position

squat back position

During the whole squat, you need to have your torso up and your shoulders back. This position allows you to have your spine in a « neutral » position. This avoids having your back in hyper extend and not having your shoulders rounded forward.

Head position

squat head position

There are people (even personal trainers) who will tell you to look up or down. Let’s test it right away with an anatomical version.

When you look at the ceiling, your cervical spine is in an unsecured position and when you add weight, it becomes dangerous. Look at the ground is not better.

You need to have your head in a « neutral » position. To be able to do this, look straight in front of you. Focus on a point in front of you so that you’re able to hold a tennis ball between your chin and your torso.

Too much weight on heels and inside/outside of the feet

Often, when we’re beginners, we are so focused on putting the weight on the heels and having a good position with the knees we forget to keep the ball on the floor. You need to divide some of the total weight on the ball of the feet because it’s very difficult to keep the balance when all the weight is on your heels.

It’s the same for the inside or outside of your feet. As you put the total weight on your heels, you try to keep balance with the inside and outside of your feet. Keep the ball of your feet on the floor to distribute part of the total weight and it will be easier to keep the balance.

Complex

complex

Don’t worry, I also had difficulties to do a squat with a good technique. I’ll explain to you something I used to learn the technique. Using a box or a bench is also useful for people who have knee problems and can no longer do bodyweight squat.

Using a box/bench is great for learning to squat down by distributing well the total weight between the ball of your feet and your heels rather than on your knees and toes.

Find a box/bench that allows you to be in parallel with your squat when you’re sitting on it.

The lower the box/bench is, the more it will help you to have stronger hips. If the box/bench is exactly parallel, it will help you to have stronger quadriceps. If you’re a squat beginner, don’t worry, a box/ bench at the right height for you to be in parallel or a little below when you squat down is perfect.

Let’s go to do bodyweigth squat. Put the box/bench behind you and do one step forward.

Inspire, throw your butt back, keeping your knees aligned with your toes and squat down until your sit completely on the box/bench. Keep your body contracted and control movement.

When you seated, don’t move and study your position. Is your back and core contracted ? Is the total weight distributed between the ball of your feet and heels ? Is your head in a neutral position ? Once you answered these questions, you can get up by using you hips up. Don’t shift the weight forwards on your toes to help you get up. Use your heels, keep your shoulders back with your chest up and keep your knees aligned with your toes.

After some sets, you’ll understand how to better use your body and you’ll be able to make the movement in a fluid way.

You’ll know when you’re doing a good squat. This is when you’re in the low position of squat and when you get up, you don’t swing forward but you put the weight on your heels.

Long life to squat

Squat is cool

Ok, the majority of people say that squat is bad for knees but the truth is that it’s the safest movement and one of the best to improve your knees health (when the squat is done with a good technique). This help to strengthen your knees, improve your stability and reduce the risk of injury. This is valid for people over 60 years old.

If you already have a knee problem or have pain with squat and think your do squat with a good technique, you need to see a doctor or a physical therapist to check your knees.

What are your difficulties when you try squat ?

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

-Steph