Hapo BACK – Lumbar Support Back Exoskeleton

The Hapo BACK is a back exoskeleton whose particularity is to offer “on-demand” lumbar support. This means the device only assists the lower back when it is really needed: at the moment of trunk flexion and straightening. The rest of the time, when the user stands upright, walks or moves around, the exoskeleton stays neutral and offers no resistance.

This operation relies on a system of leaf springs built into the device. When the user bends forward, the springs load by storing the flexion's energy; when they straighten up, they release this energy to accompany the movement, alongside the lumbar muscles. The assistance is therefore progressive and proportional to the trunk's tilt: the more you bend, the stronger the support on straightening.

The value of this “on-demand” support is twofold. On one hand, it targets precisely the risky phase of the movement, the one where the lumbar spine is most heavily loaded. On the other, it does not hinder other movements: unlike a support belt that holds the back permanently, the Hapo BACK leaves great freedom of action. The user keeps their mobility to walk, pivot and handle loads without feeling restrained.

This logic answers directly work situations where flexion is frequent but interspersed with moving around: order picking, handling, putting down and picking up loads, tasks alternating floor level and standing. In these contexts, permanent support would be a nuisance; support activated only at flexion is on the contrary perfectly suited.

The expected benefit is a reduction in lumbar fatigue linked to prolonged flexion and load carrying. By relieving the paravertebral muscles and limiting the stress at each straightening, the Hapo BACK helps spread the effort over the whole workstation and avoid the accumulation of tension that, in the long term, promotes low-back pain and musculoskeletal disorders (MSDs).

It is nevertheless a prevention and comfort device, not a medical treatment: it complements good handling practice without replacing it. Combined with manual-handling training and suitable work organization, it takes on its full value in an overall risk-reduction approach.

Light (about 1.1 kg) and discreet, the Hapo BACK goes unnoticed between two flexions, then steps in at the right moment. This “smart” character in its mechanics, with no electronics at all, is precisely what makes it an effective on-demand lumbar support that is easy to adopt day to day.

The Hapo BACK is a passive exoskeleton. It has no motor, no battery and no electronics: its lumbar support relies entirely on mechanical leaf springs. This technology reproduces the action of natural back support, loading on flexion and releasing energy on straightening, with no power source at all.

This choice of passive is consistent with the Hapo BACK's purpose: to provide on-demand support that is simple and always available. The springs react instantly to the trunk's movement, with no sensor or control logic. The assistance is therefore immediate, reliable and identical from the first to the last movement of the day, without depending on a battery's charge level.

The practical advantages are many. There is no recharging to manage, so no service interruption or charging schedule to organize. The device is light (about 1.1 kg), because it does not carry the weight of a motor and a battery pack. It is also robust and tolerant: it withstands dust, humidity and a temperature range of -10 °C to +40 °C, which makes it suited to industrial, logistics, agricultural or construction-site environments.

Simple maintenance follows the same logic. With no electronics, the Hapo BACK needs no update, no recalibration, no cell replacement. Maintenance focuses on cleaning the textile and checking the straps and springs. This technical sobriety strongly reduces total cost of ownership and limits the risk of downtime, two decisive criteria for a company deployment.

Safety in use is also reinforced: no electrical risk, no complex control to master. The user puts on the device, adjusts it to their size, and the support activates automatically at each flexion. This ease of use encourages adoption by teams, an essential condition for the exoskeleton to be actually worn over time and produce a measurable benefit.

A motorized exoskeleton can offer higher, configurable assistance, but it is heavier, more expensive and limited by its battery life. For on-demand lumbar support aimed at repeated bending and load carrying, the Hapo BACK's passive assistance represents the best compromise between effectiveness, comfort, reliability and budget.

In short, the Hapo BACK is an entirely mechanical device, with no battery and no complex maintenance. Its passive design is a lasting asset for preventing back pain and musculoskeletal disorders in the working world.

The Hapo BACK back exoskeleton weighs about 1.1 kg (to within 50 grams). This contained weight is a key comfort factor for equipment meant to be worn for many hours: the lighter an exoskeleton is, the easier it is to bear over a full day and the more likely it is to actually be adopted by users.

This lightness comes from the materials used: a technical stretch textile, reinforced straps and leaf springs housed in a compact structure. The absence of a motor and battery, specific to passive exoskeletons, contributes greatly to keeping the weight low. The result is a device that provides real lumbar support without weighing the user down or hindering their movements.

Weight is not just a number: it is also a question of distribution. The Hapo BACK spreads the load over the trunk and pelvis in a way that avoids pressure points and the feeling of heaviness. Properly adjusted, it goes unnoticed: the user feels the support at the moment of flexion, but not the weight of the device itself when standing upright or moving around.

To put this weight in context, the Hapo BACK measures around 92 to 103 cm in length depending on size, 40 cm in width and 25 cm in height. It therefore stays compact and easy to transport or store between uses. It goes on quickly, like a light harness, which simplifies everyday use.

Lightness plays a decisive role in acceptance by teams. The comfort felt from the first minutes largely determines operators' buy-in: a light device that does not heat up (no motor) and does not constrain walking is far more readily worn over the long term. And it is regular use that lets you durably reduce lumbar fatigue and prevent pain.

This moderate weight takes nothing away from the device's robustness. Designed and made in France, the Hapo BACK is built for intensive professional use, with springs sized for many cycles and a textile resistant to friction and washing. Lightness and durability go hand in hand here.

In conclusion, with its well-distributed 1.1 kg, the Hapo BACK offers an ideal balance between effective lumbar support and comfort of prolonged wear: a concrete asset for accompanying bending and load carrying while contributing to the prevention of musculoskeletal disorders.

Yes, the Hapo BACK exoskeleton is available in several sizes (S1, S2, S3), to fit each user's stature. This adjustment is essential: a well-sized back exoskeleton positions its support points correctly and delivers effective lumbar support, where an unsuitable model loses performance and comfort.

The sizes differ mainly in the length of the device, from around 92 cm in S1 to 103 cm in S3, for a width of about 40 cm. The choice is made according to the user's height, so that the supports sit at the right height on the back and pelvis. Correct sizing guarantees that the assistance engages in the right place during flexion and straightening.

In addition to size, the Hapo BACK has adjustable straps that let you fine-tune the hold according to your build and work clothes. This fine adjustment is important: too loose, the device slips and loses effectiveness; too tight, it becomes uncomfortable. The first days of use are for finding the setting that suits each person best.

This range of several sizes makes group deployments easier. It lets you equip operators of different builds while keeping a uniform level of support from one workstation to another. Before equipping on a large scale, it is recommended to organize field trials, having the users concerned test the size they are likely to need to validate real comfort.

The question of hygiene and sharing also deserves attention: if the same device is used by several people, plan a quick individual adjustment and regular textile maintenance. For daily personal use, giving each operator a Hapo BACK in their own size remains the most comfortable and effective solution.

Choosing the right size also promotes lasting adoption of the exoskeleton. A well-fitted device is pleasant to wear, and therefore actually used across all risky tasks. It is this regularity of use that produces the sought-after benefit: less lumbar fatigue and better pain prevention.

In short, thanks to its sizes S1, S2 and S3 and its adjustable straps, the Hapo BACK adapts to a wide range of body types. This attention to fit determines the effectiveness of the lumbar support and the user's comfort, in the service of genuine prevention of back pain at work.

The Hapo BACK exoskeleton has a 2-year warranty. The warranty covers spring breakage and manufacturing defects in the textile elements, the components that determine its operation. This coverage illustrates the French manufacturer Ergosanté's confidence in the quality and durability of its device.

The leaf springs, which provide the on-demand lumbar support, are designed to endure a large number of flexion and straightening cycles without loss of effectiveness. The textile, selected for prolonged contact with the body, is designed to withstand friction, perspiration and washing. This manufacturing quality is the first guarantee of a product made to last in professional use.

To benefit from the warranty, it is usually recommended to register the product after purchase and to keep the invoice. Coverage applies for use in accordance with the instructions: respect for conditions of use (dry environment, temperature from -10 °C to +40 °C), correct adjustment and regular maintenance. Damage due to abnormal use, alteration of the device or lack of maintenance is excluded.

The Hapo BACK's passive design strengthens its reliability over time. With no motor, battery or electronics, the causes of failure specific to motorized exoskeletons disappear: no cell that degrades, no board to replace, no software to maintain. The device is made up of mechanical and textile elements, simpler to maintain and keep in good condition over time.

This robustness has a direct economic effect. For a company equipping several workstations, a device that is guaranteed for two years, reliable and easy to maintain secures the investment and reduces costs linked to breakdowns and downtime. The Hapo BACK also benefits from the Made in France label and the CE Machinery 2006/42/EC and ISO 9001 certifications, guarantees of safety and consistency in manufacturing.

In case of difficulty during the covered period, contact the reseller or the manufacturer, stating the serial number and the nature of the defect. Handling is carried out according to the manufacturer's conditions, which takes care of follow-up, supply of parts and, if needed, repair or replacement.

In short, the Hapo BACK's 2-year warranty, backed by French manufacturing and recognized certifications, reflects a product designed to last and to support the prevention of musculoskeletal disorders over the long term.