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NEWS

Concept

Just wearing “rakunie” relieves
the strain on the lumbar area

Easy on the back, easy to move.
Make a change in exhausting deep bending movements.

Semi-crouching, half-standing and bent-over postures we involuntarily take when doing work…
Even if one does not lift heavy objects, strain accumulates in the back when one frequently bends over/takes a semi-crouching posture. Nursing care, agriculture, transportation, manufacturing, construction…
Make various tasks easier “(raku)”.
We hope to lessen back strain and make uncomfortable bending/semi-crouching posture tasks easier “(raku)”.

“rakunie” is an innovative wearable support system that sturdily supports bent-over/semi-crouching postures combined with easy wearing/taking off and less interference with other motions.

Wisdom + Vision + Technology
An ever-evolving product

A mighty triple collaboration to enable rakunie to evolve

“rakunie” was based on the support theory of the Keio University professor emeritus Nobutoshi Yamazaki, along with the collaboration of the Morita Holdings Corporation and Daiya Industry Co., Ltd. It was born in the year 2012, and evolved into its second generation in 2015.

Support Theory

This posture is
actually dangerous!

Approximately 65% of the body's entire weight Necessary back strength Approximately 1.5 times more than one's entire body weight

Lumbar bending causes great strain on the body

There is a need to support the upper-half of the body to maintain your posture when bending forward because it consists of 65% of the body's entire weight. For instance, bending forward at 40 degrees uses back strength almost 1.5 times more than that of one's entire body weight. This is why frequent lumbar bending causes muscle fatigue to accumulate.

How rakunie
protects the back

Standard support products “Difficulty of movement” and “the risk of muscle loss with longterm use”The abdomen is tightly bound to support the spinal column instead of the muscles.(Example: Lower back supporter) Innovative support method  “Supports muscles only when bent forward”Supports through elastomer tension that exploits the stretching of the back during bending.

Powerfully supports only during deep bending

rakunie decreases back strain by using the tension created by the elastic material when the user bends over. As no support power is exerted when the user is standing upright or twisting, rakunie prevents decreased muscle strength that occurs from excess muscle support.

Definite support effects

Strain on the erector spinae muscle An average 17% less Strain on the biceps femoris muscles An average 17% less

Supports two muscles for
“easier (raku)” tasks

In an experiment where subjects lifted an object (10kg for males, 6kg for females) up to the height of their waist, we have confirmed that wearing the rakunie decreases an average of 17% of the strain placed on the erector spinae and biceps femoris muscles which support deep bending movement.
Supporting these two muscles will enable easier deep
bending movements.

*Research implemented by the Technical Laboratory of Morita Holdings Corporation.

6 Benefits

POINT 1An astonishing lightness

An astonishing lightness Approximately 250g

We have realized an astonishing lightness by doing away with material to the bare minimum while focusing on functionality.

POINT 2Easy to wear and take off

Easy to wear and take off

Once rakunie is adjusted to your size, it is easily put on and taken off in approximately 30 seconds.

POINT 3Long-lasting
supportive power

Long-lasting supportive power

The special elastic material which creates support, maintains approximately 90% of its elastic force even after 50 thousand stretches.

POINT 4Release support power
when not needed

Release support power when not needed

Easily release the support power of rakunie by undoing the backside buckle when relaxing or driving a car.

POINT 5Corresponds to various
work types and clothing

Corresponds to various work types and clothing

rakunie can be worn inside or outside of uniforms according to one's work/tasks.

POINT 6Hand-washing OK

Hand-washing OK

rakunie can always be kept clean by washing. Everyday care for rakunie is made easy, because it dries quickly.

rakunie Users

I feel a difference when I get tired

The sense of fatigue after a night shift, during which I have to bend over many times, has changed since I started to use rakunie.

Social welfare service corporation Kizuna Fukushikai Intensive-care nursing home Furusato Ms.Kawazu

Social welfare service corporation
Kizuna Fukushikai
Intensive-care nursing home Furusato

Ms.Kawazu

Watch Ms. Kawazu's rakunie experience.

*Movies are in Japanese only.

There is a sense of security and stability when bending forward

I need to maintain a bent-over posture when bathing elders in need of care. Before using rakunie, I had to pause to stand straight up when my back could not take the strain, but now with rakunie, my back does not feel as strained anymore, so I do not have to stand up straight in mid-bath. My job is much easier now.

Magonote Nursing Services Ms. Saito

Magonote Nursing Services

Ms. Saito

Watch Ms. Saito's rakunie experience.

*Movies are in Japanese only.

There is less fatigue

rakunie enables me to continue work with the utmost care. After starting to use rakunie, there is less fatigue when doing planting work. I am now able to work bent over for long periods of time without compromising planting quality.

Ichigo Factory Mr.Matsumoto

Ichigo Factory

Mr.Matsumoto

Watch Mr. Matsumoto's rakunie experience.

*Movies are in Japanese only.

Straightening up after bending over is much easier now

Stocking and displaying merchandise in shops calls for a lot of squatting and standing, which can be very exhausting.
Work is so much easier after starting to use the rakunie.

Nakanishi House Center Corp. Mr.Nakanishi

Nakanishi House Center Corp.

Mr.Nakanishi

Watch Mr. Nakanishi's rakunie experience.

*Movies are in Japanese only.

rakunie assists my back, making the workload lighter and easier

My body feels lighter after starting to use rakunie, as there is less strain on my back when carrying rice bags and seedlings.

Nagai My Life Farm Mr. Nagai

Nagai My Life Farm

Mr. Nagai

Watch Mr. Nagai's rakunie experience.

*Movies are in Japanese only.

Straightening up has especially become easier

Automobile maintenance requires a lot of deep bending. It feels much easier now when straightening up, because of the support band functions.

Maeda Automobiles Corp. Mr. Fujita

Maeda Automobiles Corp.

Mr.Fujita

Watch Mr. Fujita's rakunie experience.

*Movies are in Japanese only.

My back feels much lighter the next day after doing working on multiple automobiles

A lot of bending forward occurs when changing tires and loading automobiles on vehicles, which causes back strain to accumulate. I am less tired the next morning after starting to use rakunie.

Metropolitan Towing Services Mr. Kikuchi

Metropolitan Towing Services

Mr. Kikuchi

Watch Mr. Kikuchi's rakunie experience.

*Movies are in Japanese only.

Product Introduction /
How to Wear Movies
*Movies are in Japanese only.

Size / Materials

Size / Materials

Comes with a special rakunie pouch

Cautions

●This product is not for treatment of lumbar pain or other conditions.

●Persons to whom one of the following applies should not use this product. Doing so may result in aggravation of present conditions or lead to other problems.
・Persons with an injury, poor circulation or other condition in places where the product contacts the body, like the shoulders, chest, lumbar and knees.
・Women who are pregnant.

●The actual level of support offered by this product will differ depending upon the individual.

●Use of this product will not enable the wearer to demonstrate greater strength than they usually possess. Do not attempt to pick up exceedingly heavy objects or use a posture that places an excessive load on the lumbar while wearing this product.

Frequently Asked Questions

Intended Use

In which industries is rakunie used?
rakunie is used in various industries and tasks that involve frequent deep bending movements.
≪Use examples≫
Nursing care (care welfare facilities, in-home bathing care, in-home nursing care, etc.)
Agriculture (strawberry, rice, Japanese radish, apple, cabbage, Chinese cabbage, tomato, etc.)
Manufacturing (electronic device assembly, loading, packing, etc.)
Fishery (seafood processing, cultivation, etc.)
Others (car maintenance, construction, logistics, etc.)
Will my physical power increase with rakunie?
rakunie will not make you stronger so that you can carry heavy objects easily. rakunie is intended to lessen back strain by providing support when you assume a bent-over posture for a long time or lift light objects.
Will my back pain be cured with rakunie?
rakunie is not equipment for medical treatment. Please wear rakunie only to relieve the strain in the lumbar area.
Will rakunie also be effective to support the lumbar area during long drives etc.?
The purpose of rakunie is to lessen back strain in deep bending movements. You should not expect relieved strain in the lumbar area in a seated posture. Please release the support force when you wear your rakunie while driving.

Specific Usage

Can I use rakunie in wet areas where I help patients bathe, for example?
Yes. rakunie is made of quick-drying materials that dry easily after getting wet.
Can I wear rakunie inside my clothes?
You can wear rakunie inside or outside your clothes depending on the usage environment. However, if you choose to wear your rakunie inside your clothes, make sure that you have underwear underneath it on your upper body.
Do I need to take off rakunie before going to the toilet?
No. If you use the function of releasing the support force, unbuckle it in the back and shift the back belt to the right and left of your body, then you can use the bathroom without removing your rakunie.
Can I drive a car while wearing rakunie?
If you use the function of releasing the support force, unbuckle it in the back and shift the back belt to the right and left of your body, and the support force of rakunie will be deactivated. You can drive a car in this condition. However, please make sure that your rakunie does not get caught when you get in and out of the car.

Size selection etc.

My height is between the two sizes on the size chart. Which size should I choose?
As a guide, if you are larger than an average build, it is recommended to choose a larger size. If you are close to or smaller that an average build, it is recommended to choose a smaller size.
Are there any colors other than black?
Only black is available at the moment.

Wearing rakunie

I have back and knee pain. Can I wear rakunie?
Please refrain from using rakunie if you have back and knee pain. Seek medical advice if you have other health concerns.
Can I wear rakunie together with a corset or a backache belt?
Please refrain from using rakunie together with a lumbar belt. If worn together, rakunie and the belt may not work correctly or they may cause damage or injuries.
My back is bent (hunchback). Can I wear rakunie?
rakunie functions while the wearer’s back is bent and stretched. Please refrain from using rakunie if your back is bent.
I am allergic to rubber. Can I wear rakunie?
rakunie is made of nylon, polyurethane, polyether, polypropylene and polyacetal. Natural rubber is not used. Please make your own decision based on the list of materials or consult your doctor.

Maintenance

Can I wash rakunie?
Yes. Use neutral detergent and wash your rakunie by hand. To prevent damage to the fibers, avoid using fabric softener, bleach, a clothes iron, dryer and dry cleaner.
How should I store rakunie?
Avoid direct sunlight when storing rakunie. It is recommended to store your rakunie on a hanger as this makes it easier to put it on.
Can you repair rakunie?
Yes. You are responsible for the cost of repairs in principle. Please contact us for details. However, we may not be able to repair your rakunie depending on the damage.

Contact Us

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Lumbar Support Wear "rakunie" Catalog PDF