ASCII.jp Do you need an ergonomics vertical mouse "MX Vertical" for people who don't have shoulders?

I asked an expert about the need for ergonomics

From Logitech, the first vertical mouse "MX Vertical Advanced Eelgonomic Mouse MXV1S" will be released.Compared to conventional mice, muscle tension is reduced by 10 %, stiff shoulders and tendonitis are less likely to cause stiff shoulders, and it is an ergonomic design mouse designed based on ergonomics.

I am not stiff in my constitution.However, it is said that people who often use personal computers in the world are easy to stiff shoulders.But why am I not elaborate?Is Elgonomics Mouse meaningful for such a person?In order to solve such questions, we talked to Dr. Rinue Okazaki of Kinetic Act.

Kinetic act physiotherapist Dr. Rinue Okazaki

Kinetic act is a method of "supporting the body's original function" that Professor Okazaki, a physiotherapist, feels insufficient in existing care and training methods, health equipment, supporters, etc.It is a company that started to develop products.

Physiotherapists are a job that supports bones, joints, and muscles in a good condition in which bones, joints, and muscles are in good condition from an anatomy and athletic perspective, and to create a body base for moving functionally.It helps you recover the basic functions of your body so that you can do basic movements that you can do in your daily life, such as getting up, standing up, and walking.

What is stiff shoulders in the first place?

First of all, basic knowledge.What kind of symptoms are stiff shoulders in the first place?

According to Okazaki -sensei, working in the same posture for a long time will solidify the muscles around the neck and shoulders, and the blood flow will be less likely to flow.When the blood flow is poor, pain and weight appear as subjective symptoms in the hardened muscles.This is the so -called stiff shoulder.

"The reason why the shoulders are stiff when using a personal computer is because they continue to work in the same posture for a long time, so ideally it is said that stretching and standing up every 15 minutes."

Nevertheless, if you interrupt your work every 15 minutes, you won't work!There will be many people who say.What to do then?Okazaki says that the answer is terribly simple and should work in the right posture.

"It's important to keep working in the same posture for a long time, and where you support your body. Originally, even when you are sitting, it becomes a foundation such as stomach, buttocks, or trunk muscles.It would be nice if you could support your body with your muscles, but if you try to be in a comfortable posture while sitting, you will lose your strength from such muscles and solidify your neck, shoulders and back muscles.If you try to move your body with your muscles hardened, the internal pressure in the muscles will increase and become stiff, and if the hardness is stacked and strong, it will cause tension and pain."

So why are there people who lament that their shoulders are terrible, and those who don't feel like me at all?Did you work in the right posture without knowing it?

"It's not (laughs). The body is quite bent?"

Is that so. I thought.

"Even if you don't feel pain, you have the hardness of your shoulders and neck, but some people don't have any subjective symptoms as pain, and some of them are too hard and painful.Some people have become insensitive to it. If you don't have pain or discomfort, it's okay if you leave it alone, but even if you don't usually feel pain, the hardness is increasing, and sometimes.Suddenly, symptoms such as waist, forty shoulders, fifty shoulders, etc. may appear, so it is not better to work in the right posture. "

What is the attitude of using an ideal computer?

So what is the ideal attitude when using a personal computer?

"If possible, it would be better to have the height of the desk, the height of the chair, the distance from the screen, the angle of the eyes, etc..I want it "

It is NG to put a monitor on the edge of the desk and work diagonally in the body.If the monitor is placed diagonally, it will be useless if the body is not able to sit straight.Even if you use multiple monitors, it is better to use the whole body as much as possible, not just the upper body.

If you put a monitor on the left side, the lower body is facing the front and only the upper body facing the left, the body will have such a habit and will usually lean to the left.

"If you sit in a chair, you should have the back of both feet attached to the floor."

If your feet are away from the floor, you will have to solidify your muscles to support the wobbly body.Nevertheless, there is no problem if it can be supported by abdominal muscles and trunk muscles, but it can make it easier to support the feet.

The ideal way of sitting in Okazaki's recommended chair is to raise the body with the landscape.Then you will want to bend the spine, but in that state you can withdraw a little bit of the part.The image is that if you feel like falling forward from the hip joint, you will be able to support your body.However, it is tired to keep doing this forever, so it is better to change your posture by leaning on your back or relaxing every time.Even if you don't stretch every 15 minutes, just changing the sitting in this way is effective in preventing muscles from solidifying.

On the left is the condition of personal computer work.The work of the hands is supported by fixing the shoulders and neck by sticking to the head forward, and the head protrudes forward.On the right is the posture of the teacher's recommended PC, the body is raised with the bone, and the body is placed on it and distributed the load.

"The other is to keep the desk using a PC always clearly clear it."

Do you get stiff if your desk is dirty?In a stressful sense?

"No. This is a matter of the work area. Even if you operate the mouse, it is important to operate it in the correct position. There is no place to place materials on the desk, so you always have a material on your knees.Some people come to work, but at that time it is already difficult to maintain the correct posture. After that, there is no space to operate the mouse next to the keyboard, so put it in front.Those who are operating "

Laptop PC has a high load on the body

Then, is the notebook PC with a touchpad in the middle of the keyboard bad for stiff shoulders?

"If you use a mouse for a long time, I would like to use a mouse. Before that, in the case of a laptop, it depends on the height and the sitting height, but the screen is far from the face, so I will blew forward.It looks like a look into it. So the bone on the neck becomes a array of a straight neck. The bones on the neck are originally curved toward the front, but this is straight.Hey. If it hardens in this state, it will be more likely to cause troubles such as headaches. "

So how do you use a notebook PC?

"It's good if you use it a little on the go, but when you use it for a long time in the room, you should connect an external monitor and an external mouse if you can."

If it is a PC with a keyboard like a 2in1 type, it is better to separate the monitor and the keyboard, and use the monitor to a position where the angle of the eyes is about 15 to 20 degrees.

Ideal mouse for the body

So what about how to use the mouse?

"Actually, the hand when operating the mouse is in a state where the forearm bones are crossing. The palm is facing inside the hand down. In this case, in this case.The two bones on the forearm are straight. If this bone is crossed, the range of motion will be narrowed in the first place. Moving in that state will burden the muscles, so if possible, the middle (muscle tension.It would be ideal if a mouse that could be held in a form close to the balanced state).

In the conventional mouse operation, the radius and the shaku are crossed, and the fingers are moved while the movement of the joints is limited.

Finally, Logitech's "MX Vertical" is a vertical mouse that embodies the ideal form.Unlike the mouse with a style that has a conventional palm over the top, hold the body that extends on top with a thumb and four fingers in a form with a slightly large stick.

The point is not directly above the hold, but a 57 degree angle.It is said that only the thumb will burden if you go right.

"When I heard the story when it was developed, I seemed to have been searching for the best angle by making some wooden types, so I thought I was studying well.In the relationship between the relationship and how to use it, it can be used at an angle that is hard to burden. If this is straight up, "I'm sorry!I wonder if I was saying (laughs). "

If you have MX Vertical correctly, you will not be able to move unless you use the muscles around the shoulder or around the scapula.This is a substitute for muscle training, which is usually hard to move, and can be expected to gradually reduce the tension of the shoulders.

"Because the way you hold it will change from the conventional mouse, you may need to get used to it until you get used to it, but if you use it for about two weeks, it will gradually become harder to feel.I want to focus on my stomach. "

Are you hungry?Not a shoulder or neck?

"There are quite a few people who think that the stomach doesn't matter because of the hands, but how to dispers the work of supporting the body without bias the load on the muscles of a specific site.That is important. Even if you use a mouse in the same way, some people have tendonitis, while others use it normally. That is the difference between where the body is putting a load.The mouse is a tool that uses your fingertips, but the difference between the mouse is used in conjunction with the scapula or the stomach, or the fingertip only with the fingertips. "

I see!In other words, the movement of the body means that not only the power of the moving part, but also the loading of the load throughout the body can only be done!

"Yes! Human body is a mechanism that can be distributed in that way, but many people are not able to do that.It will be different, but if you are busy with the work, you should change it to a tool that can work more correctly and easier. "

MX Vertical's feeling of use of a man who does not have shoulders

I actually tried using MX Vertical.I still touched it a little, so I don't feel like I feel the load reduction of my wrist, but it's not like using a conventional mouse to grab something from above and lift it, but with my thumb and four fingers.Because it is a feeling of holding it, it is easy to hold, such as holding a cup or holding the handle.

Because it is close to the feeling of holding it with a finger, it may be easier to use the file drag and drop than the conventional mouse, probably because the purpose and operation match.

The MX series is the top brand of Logitech products.This MX Vertical is equivalent to the highest peak of the conventional mouse "MX Master", and its performance is origami.A high -definition sensor that can be adjusted from 400dpi to 4000 dpi.A battery that will be up to 4 months with full charge.Bluetooth, USB wireless receiver, USB cable, 3 types of connection method.Equipped with a custom button and cursor speed switching button that allows you to freely assign functions.Of course, there is no compromise on the grip.

Conventional MX Master and MX Anyware are MX series that enhances productivity.This MX Vertical is the MX series, which is the highest peak of products that enhance comfort.

As I mentioned a bit in Okazaki -sensei's story, Logitech was examined in countless MX Vertical wooden forms to pursue comfort.In recent years, these tasks are usually performed with digital simulation, but digital simulations still have the limit value of software and cannot incorporate sensory elements when humans touch it by hand.。If you compare it, it's close to making a wooden type of shoes.

Since the shape and size of the hand vary from person to person, there are various users using tests, and the weight, shape, and slip are examined from the obtained data, and it is made as a total solution.That's it.

It is very difficult to change the habit that has become familiar with your body.Nevertheless, there are many things that can be done right now to create a good working environment.Change the position of the monitor.Change the height of the chair.Try changing the mouse.That's why it's worth trying if you don't put a load on your body and go in the right direction.

(Provided by: Logitech)