Aeron Office Chair Adjustment
The adjustment of the Aeron office chair requires precise operation based on body condition and usage scenarios. The specific steps are as follows:
1. Seat Height Adjustment
Seat height is a core parameter affecting sitting posture. When adjusting, keep both feet flat on the ground, knees naturally bent at about 90 degrees, and ensure thighs are parallel to the ground without a floating sensation. If the seat is too high, it will cause the legs to float, increasing pressure on the thighs; if too low, it will make the knees higher than the hips, compressing leg blood vessels. After adjustment, confirm comfort by gently shaking the legs to avoid lower limb fatigue caused by improper height.
2. Recline Resistance Adjustment
The recline resistance is controlled by a large knob beneath the seat surface. Turning it clockwise increases resistance, while turning it counterclockwise decreases resistance. The adjustment standard is that the body should not shake and the backrest should not collapse when reclining. Lightweight users are advised to adjust to a looser setting to avoid excessive support force. For example, users under 50kg can set the resistance to two-thirds of the minimum setting, while users over 60kg should gradually increase the resistance according to the actual recline force to ensure the backrest provides stable support.
3. PostureFit SL Lumbar Support Adjustment
The lumbar support is adjusted using a knob at the lower part of the backrest: turning it forward extends the lumbar support, while turning it backward retracts it. When adjusting, maintain an upright sitting position, with the standard being no floating sensation in the waist and no pain from pressure. If the lumbar support is too high, it may compress the lumbar spine; if too low, it will fail to provide support. It is recommended to use an 80% fit between the waist and the backrest as a reference value. For patients with lumbar disc herniation, the lumbar support can be appropriately increased in protrusion to disperse pressure.
4. Armrest Adjustment
The armrests support three-dimensional adjustment in height, forward/backward position, and angle. When adjusting, keep the shoulders naturally relaxed, elbows bent at about 90 degrees, and wrists able to rest flat on the keyboard or mouse. The specific parameters are: the armrest height should be level with the elbows, the forward/backward position should make the arms form a 100-110 degree angle with the torso, and the angle adjustment should ensure no twisting sensation in the wrists. Users who frequently use computers are advised to adjust the armrests to a position slightly higher than the desktop by 5cm to reduce shoulder and neck strain.
5. Forward Tilt and Recline Limit Adjustment
The forward tilt function is suitable for focused office scenarios. After adjustment, the seat cushion will tilt forward by about 5 degrees, prompting the pelvis to naturally straighten and reducing the degree of bending. The recline limit is locked by a lever on the side of the backrest to set the maximum recline angle. It is recommended to set it according to the usage scenario: 120 degrees for reading and 135 degrees for resting. Note that excessive recline angles may affect breathing, and a distance of about 10cm should be maintained between the head and the backrest.
Additional Function Adjustments
Some models support tension adjustment (controlling the recline rebound speed via a knob on the side of the seat surface) and headrest adjustment (the headrest height should be level with the ears). When adjusting, consider personal body characteristics. For example, users over 175cm tall need to adjust the headrest to the highest setting to ensure cervical spine support.
