Do Exoskeletons Actually Work?
Exoskeletons work for specific tasks, and the evidence differs by use case. For industrial back-support devices, an updated systematic review in the journal Ergonomics found that reduced back-muscle activity was the most consistent result across thirteen studies of active devices and twenty of passive ones. The same review found endurance gains in lifting and static bending, lower performance in tasks needing more agility, extra abdominal and lower-limb muscle activity, and moderate user satisfaction.
Medical exoskeletons for paralyzed or mobility-impaired users have been commercialised, according to Wikipedia, and ReWalk received FDA approval in 2014. Ekso says EksoNR holds clearances for acquired brain injury, MS, spinal cord injury and stroke. A warehouse or factory buyer looking at back support has review evidence of reduced back-muscle activity. A person with a mobility impairment has devices cleared in the US for listed conditions, while a curious consumer has no published consumer-product results to go on. We have not tested or ordered any product on this page; every product fact comes from the sources listed.
Industrial Back-Support Evidence
The updated systematic review of industrial back-support exoskeletons covered thirteen studies of active devices and twenty of passive devices. Its most consistent finding was a reduction in back-muscle activity. Endurance results were mixed: endurance during lifting and static bending improved, but performance declined during tasks that needed more agility. The review also recorded side effects, including increased abdominal and lower-limb muscle activity and changes in joint angles, and it reported user satisfaction as moderate. Separately, Wikipedia reports longitudinal and converging evidence that, for certain jobs, exoskeletons can reduce workplace musculoskeletal disorders and improve performance and productivity. Wikipedia cites no effect sizes in that text, draws most of its examples from passive devices, and describes exoskeletons as an emerging workplace technology as of 2025.
Medical Exoskeletons
Powered medical exoskeletons for paralyzed or mobility-impaired users have been commercialised, according to Wikipedia, which reports that ReWalk received FDA approval in 2014. Of the use cases on this page, medical devices are the only one with a regulatory approval date in the sources. No source here publishes a price for ReWalk or any other medical exoskeleton.
Ekso says EksoNR is the only FDA-cleared exoskeleton for brain injury and MS, and the first cleared for both stroke and spinal cord injury. Ekso lists four indications: acquired brain injury, MS, spinal cord injury and stroke. Ekso also says patients using rehabilitation exoskeletons may improve more quickly, which is a company claim with no independent figure among these sources.
A person whose condition is outside those four listed indications should not read EksoNR's clearances as covering it, and can read the full indication list on Ekso's site. Cost and coverage are a separate question, handled in our guide to exoskeleton cost and Medicare coverage. Our page on medical exoskeletons and robotic beds places these devices within the wider medical robotics category.
Military Exoskeleton Programs
Wikipedia describes the Hardiman, a 1960s prototype built by General Electric (GE) and the US Armed Forces, which was said to amplify strength by a factor of 25. At that ratio, lifting 110 kg would feel like lifting about 4.5 kg. The machine itself weighed 680 kg and walked at 0.76 metres per second, .
The Hardiman was never used by humans, because control problems caused violent and uncontrollable motion. Wikipedia also names TALOS, SARCOS, BLEEX and HULC as military-oriented powered systems and says none of them were commercialised. No source on this page publishes an effect size for any military suit. Industrial claims rest on a systematic review and medical claims rest on regulatory approvals and clearances, while military claims rest on prototype descriptions.
Limits To Know
Current exoskeletons have five published limits: control, power and weight, fit, task range and side effects. Wikipedia describes coordinated control as a deceptively hard task, and the same article records prototype problems. The Hardiman's control problems produced violent and uncontrollable motion in the 1960s, and a Lifesuit prototype injured its inventor during a trial. Ask the maker for run time per charge, weight and price, since none of the sources here publish run time, weight or price for a current product. Ask how the device is sized, because poor fit and discomfort are stated reasons users reject exoskeletons. Ask which tasks the device was built for, because the review found endurance gains in lifting and static bending and declines in tasks that needed more agility.
- Control: coordinated movement is hard to achieve; the Hardiman was never used by humans, and a Lifesuit prototype injured its inventor.
- Power and weight: powered devices have limited battery life and tend to be heavier and more expensive.
- Comfort and fit: poor fit and discomfort can lead users to reject an exoskeleton.
- Task range: most modern exoskeletons are built for specific tasks rather than full-body augmentation.
- Side effects: the industrial review found more abdominal and lower-limb muscle activity and changed joint angles.
Verdict By Use Case
The evidence supports exoskeletons in two of the four use cases covered here. Industrial back-support exoskeletons reduce back-muscle activity with trade-offs in agility and side effects, medical exoskeletons hold US approvals and clearances for named conditions, and military suits were never commercialised. Consumer exoskeletons have no published results in these sources, so there is nothing yet to weigh for that group.
Skip an industrial back-support suit if the job mainly needs agility, since performance declined in those tasks in the review. Skip any military-style or consumer suit for now, since none of the military systems were commercialised and no consumer results are published. Warehouse buyers can read the review on its publication page, and people with a mobility impairment can compare their condition with the indications on Ekso's site.
| Use | What the sources report | Limit |
|---|---|---|
| Industrial back support | Most consistent finding is lower back-muscle activity; endurance improved in lifting and static bending | Performance declined in agility tasks; more abdominal and lower-limb muscle activity; moderate satisfaction |
| Medical use | ReWalk received FDA approval in 2014; Ekso lists EksoNR indications for acquired brain injury, MS, spinal cord injury and stroke | Clearances cover listed conditions; faster improvement is an Ekso claim; no price published |
| Military | Hardiman prototype in the 1960s; TALOS, SARCOS, BLEEX and HULC named as powered systems | None commercialised; no published effect size |
| Consumer | No results published in these sources | No price or performance data published |
Bottom Line
Exoskeletons have published support in two areas: industrial back-support devices most consistently reduce back-muscle activity, and medical exoskeletons hold US approvals and clearances for listed conditions. Buyers whose workers mainly need agility should not order a back-support suit on the strength of the review, because performance declined in those tasks. A person with a condition outside EksoNR's four listed indications should not treat its clearances as covering that condition.
See our industrial exoskeleton robots guide for more on exoskeletons built for work.
FAQs
What is the use of an exoskeleton?
Wikipedia notes that most modern exoskeletons are built for specific tasks rather than full-body augmentation. The sources here cover three uses: industrial back-support devices, where a systematic review found reduced back-muscle activity; medical exoskeletons for paralyzed or mobility-impaired users, such as ReWalk; and military prototypes, none of which were commercialised.
What are the disadvantages of an exoskeleton?
The published disadvantages are hard control, limited battery life, extra weight and higher cost for powered models, and poor fit or discomfort that can lead users to reject the device. The industrial review adds side effects, including more abdominal and lower-limb muscle activity and changed joint angles, plus lower performance in tasks needing agility. User satisfaction in that review was moderate.
Do industrial exoskeletons reduce back strain?
Industrial back-support exoskeletons reduced back-muscle activity in an updated systematic review of thirteen active-device and twenty passive-device studies, and that was its most consistent finding. Endurance improved during lifting and static bending, while performance declined in tasks needing more agility. The review also found increased abdominal and lower-limb muscle activity and changes in joint angles.
Are exoskeletons approved for medical use?
Yes, some exoskeletons are approved for medical use in the US. Wikipedia reports that ReWalk received FDA approval in 2014. Ekso says its EksoNR is cleared for acquired brain injury, multiple sclerosis, spinal cord injury and stroke, and calls it the only FDA-cleared exoskeleton for brain injury and MS. Those clearance claims come from Ekso's own site.
Has the military adopted exoskeletons?
The 1960s Hardiman, built by GE and the US Armed Forces, was never used by humans because control problems caused violent and uncontrollable motion. Wikipedia names TALOS, SARCOS, BLEEX and HULC as military-oriented powered systems, and none reached commercial sale. No source here publishes an effect size for a military suit.