Correct posture is the key to good health. To keep the spine in the correct position while sitting, there are several ways. One of them is a knee chair. Its unusual design helps to uniquely arrange the body: a sharp angle between the legs and torso. As a result, the load on the sacral region decreases, the correct lumbar deflection is created, the spine is aligned.
Design features of the knee chair
In the design of the product, several features distinguish it from the usual chairs.
- The seat is located at an angle of 15 ° to the horizontal plane.
- For knees, there are 1 or 2 soft stops.
- There are no armrests.
The product with a seat and a knee stand is considered self-sufficient, as it can create an imitation of a standing position without requiring additional support.
Models are produced, additionally having a small backrest. It is necessary since most people already have a decrease in muscle tone, and it is required to rest from time to time.
Benefits to whom recommended
Orthopedic knee stool allows you to align the back without much tension at the level of reflexes. Thus, maintaining the spine in an anatomical position does not require additional muscle tension and minute-by-minute control.
- creating correct posture and maintaining anatomical curves
- improvement of respiratory function
- reducing the load on the spinal muscles
- reduction of pressure on internal organs
- establishment of average blood circulation in the thighs, as there is no pressure on the edge of the seat
This type of furniture is indispensable for schoolchildren, students, people who spend a lot of time passively (artists, architects, programmers, office workers, etc.). In addition, pregnant women in the later stages can use this design.
Knee-rested stool helps in forming posture in children and serves to prevent problems with the spine in adults.
Knee chair with back
There are several conditions in which the use of knee stools can improve a person’s well-being. These include:
- violation of posture
- unstable conditions of any of the vertebral departments
- the presence of hernia and protrusion
- inflammation of the back muscles
- the recovery period after spinal injuries
It is established that the respiratory, cardiovascular system problems, gastrointestinal tract disorders, and rectum inflammatory processes can be partially smoothed out thanks to this device.
According to user surveys, positive changes appear after a month of use.
Who is contraindicated, and what disadvantages do knee chairs have?
Like any product, a chair with knee support is not a panacea for all problems. There are several contraindications in which it is worth refraining from using it.
- Congenital anomalies of the spine.
- Injuries of the spinal column.
- The third stage of scoliosis.
- Prepatellar bursitis.
- Changes in the femur.
- Osgood-Schlatter’s disease, accompanied by severe pain.
It is essential to consult with a specialist before purchasing to avoid the risk of deterioration.
It should be borne in mind that the design features for sitting can cause difficulties and discomfort.
- The appearance of pain in the knees.
- Slipping off the seat due to an unstable body position.
- Numbness and swelling of the feet.
- Significant height.
Some of the shortcomings may be associated with errors in the selection of the product. And, to avoid the occurrence of pain, it is recommended to take a break every hour, accompanied by a slight warm-up.
What are the knee chairs – varieties of models
All types of knee chairs can be divided into two large groups: dynamic and adjustable.
Products that combine a knee chair and a rocking chair are called dynamic. This design is an ideal choice for children who find it challenging to maintain the same body position for a long time.
The base in the form of an arc contributes to the free movement of the center of gravity, changing the angle of inclination while keeping the back smooth. If you bend forward, you can work at the table, and to read or watch TV; you should sit back.
A dynamic model allows you to load the spine properly, form a reliable muscular corset, and do not interfere with average blood circulation throughout the body.
Soft pillows provide comfort to the knees.
Adjustable design is suitable for tables of different heights. Depending on this parameter, you can independently select the desired position and fix it. The adjustment principle can occur step by step or smoothly.
In the first case, there are several possible provisions for fixation (at least 3).
The second option is based on the use of a gas lift.
Types of bases
Knee chairs have several types of bases. The most straightforward and most affordable option is equipped with stable support in legs or slats. The presence of wheels will ensure mobility. You can quickly move along the desktop or around the room without getting up from it on such a chair. And also there will be no problems with the movement of the product, which usually has a lot of weight. To avoid damage to the floor covering, the rollers have a rubberized layer.
Curved runners like a rocking chair make it possible to balance and choose any position while maintaining the anatomical shape of the spine.
Materials of manufacture
In the production of chairs that provide an orthopedic effect, metal or wood is used. The use of metal increases the reliability, stability, service life of the product. In addition, this design has more possibilities for adjustment. The steel base is chrome-plated, painted with a special paint or applied Teflon coating.
Wooden models are usually made of solid natural oak, beech, or multilayer plywood.
When choosing home use, preference is often given to products in wooden design since they fit easier into the interior and have less weight.
However, if you need a chair with maximum service life, you should buy a model with a steel frame.
To fill the seat, knee pillows, backrests use different materials.
- Foam rubber has flexibility, does not cause allergies, is affordable. However, the service life is five years.
- Latex has a high degree of elasticity, good porosity. The antistatic effect prevents dust from accumulating. Able to maintain its properties for up to 10 years.
The surface is covered with upholstery fabric or leatherette. Often, the manufacturer offers to purchase a set of interchangeable covers, which simplifies combining the chair with other interior items. A small layer of synthesis is also used to avoid stretching the material and the formation of folds.
The pillows are equipped with a unique “bumper” made of elastic foam rubber to maintain a clear edge.
Rules and recommendations for choosing knee chairs
The physical characteristics of a person influence the choice of chair: height, weight. And you should also take into account the size of the table. Determine the distance from the countertop to the floor as follows. After adjusting the seat position and knee rest, sit on a chair. The arm is bent at the elbow and moved away from the body by about 15 cm. It remains to measure the distance from the elbow to the floor. The resulting value determines the height of the table at which it will be possible to work sitting on such a product. The chair is positioned in such a way as to provide an emphasis for the hands. The computer monitor is placed in the middle of the table not to cause tension in the cervical region.
If there are already problems with posture, it is reasonable to consult with an orthopedist about a suitable model to choose the right knee stool.
When buying, you should pay attention to several points.
- The number of possible options for adjusting the angle of inclination of the seat and its height about the knee cushion.
- Equipment in the form of rollers, which simplifies the movement of the chair since such products have a significant weight.
- Availability of a certificate confirming the use of safe materials for health.
- Finishing soft surfaces from high-quality upholstery fabric is more durable than leatherette.
- The frame of metal is considered more reliable than wooden.
It is worth trying the product in the store. So you can empirically establish the degree of comfort and the correctness of the location of the body.
Each model is accompanied by a description containing the permissible parameters of height and weight of the user. In most cases, the range of height is quite wide and ranges from 120 to 180 cm Established, the lower the person, the smaller the distance between the seat and the knee pad. All offered chairs with an emphasis on the knees have a minimum of 3 positions for fixation.
Models equipped with a backrest have the ability to adjust it in height and angle of inclination.
This piece of furniture is considered individual, as it is adjusted according to the parameters of a person to achieve the desired effect.
The use of knee stool aims to strengthen the muscles of the back, create correct posture, and prevent problems with the spine. It is important to correctly adjust the product in height based on the height of the user. To avoid discomfort, it is necessary to arrange a break every hour. This will relieve tension in the knee joint, to that the swollen legs. This requirement applies not only to the knee chair. Change of body position, warm-up is shown in any sedentary activity every 40-50 minutes.