Orthopaedic surgeons warn: E-bikes pose hidden injury risks for all ages

The convenience, affordability, and environmental appeal of electric bikes—commonly known as e-bikes—have made them a popular alternative to traditional transportation in cities and suburbs worldwide. However, a growing body of medical data suggests this micromobility revolution may be accompanied by a rising public health risk. According to the American Academy of Orthopaedic Surgeons (AAOS), the rapid increase in e-bike adoption has coincided with a disturbing surge in serious bone and joint injuries—affecting riders of all ages, from teenagers to older adults.

Orthopaedic surgeons affiliated with the AAOS now report an increase in high-energy trauma cases—fractures, dislocations, and even head trauma—that are more commonly associated with motor vehicles than traditional bicycles. These warnings come amid data from the U.S. Consumer Product Safety Commission (CPSC), which recorded a 23% annual rise in injuries linked to micromobility devices since 2017, with e-bikes comprising a growing share of this category.

What Makes E-Bike Injuries More Severe Than Traditional Bicycle Injuries?

The key factor, experts say, is velocity. While standard bicycles generally operate at speeds between 10–15 mph, many e-bikes—particularly Class 3 models—can reach speeds of up to 28 mph with motor assistance. This increase in speed dramatically changes the physics of a fall or collision, multiplying the force involved and, by extension, the severity of injury. Dr. Brian R. Waterman, an orthopaedic surgeon and sports medicine specialist representing the AAOS, highlighted how these high-speed impacts are producing injuries rarely seen in conventional bike accidents.

Unlike passive forms of exercise, e-bikes allow riders to cruise long distances with minimal physical effort, which ironically diminishes the musculoskeletal benefits typically gained from biking, such as improved coordination, bone density, and muscle tone. More troubling is the fact that users may overestimate their ability to control the bike, particularly when navigating traffic or uneven terrain at high speeds.

How Rapid Is the Growth of E-Bike-Related Injuries?

From 2017 to 2022, nearly half of all recorded e-bike injuries occurred in 2022 alone. That steep jump has prompted the AAOS to raise alarms about the cumulative burden on emergency departments and orthopaedic care systems. More than 10% of those injured in e-bike accidents required hospitalization, a figure that underscores the severity of incidents and the potential for long-term health consequences.

While head trauma and broken limbs are common across cycling accidents, the AAOS notes that e-bike riders are uniquely vulnerable due to the weight and torque of the machines. Vehicle-induced collisions are also on the rise, particularly in urban environments where riders share the road with fast-moving traffic, distracted drivers, and inconsistent cycling infrastructure.

Are Younger Riders Also at Risk?

A misconception persists that e-bike injuries predominantly affect older or inexperienced riders. Yet clinical observations suggest that the injuries span all demographics. Inexperienced youth riders, thrill-seeking teenagers, and even seasoned cyclists are suffering injuries with alarming frequency. The combination of high speed, limited protective gear, and poor awareness of local regulations often leads to dangerous riding behavior that can result in life-altering accidents.

The AAOS has emphasized that e-bikes are not toys and should never be treated as such. Many models weigh more than twice as much as standard bicycles, making them harder to maneuver, stop, and control—especially for younger riders. Without adequate training or supervision, new riders are exposed to significant orthopaedic risks even on seemingly routine trips.

What Can Riders Do to Stay Safe?

The AAOS has proposed a series of guidelines to help mitigate these risks. While many of these suggestions echo traditional cycling safety tips—such as always wearing a certified helmet and inspecting equipment regularly—the organization places special emphasis on understanding the specific class of e-bike being used. Riders must know whether their e-bike is a Class 1 (pedal-assist only), Class 2 (throttle-assisted), or Class 3 (high-speed pedal-assist) model, as local traffic laws and age restrictions often vary accordingly.

Visibility is also a recurring concern. Bright clothing, reflective accessories, and functioning lights are considered essential, especially during early morning or late evening commutes. Importantly, riders should never wear headphones or use mobile devices while on the move, as distraction-related incidents are increasing in parallel with e-bike adoption.

In terms of behavioral guidance, the AAOS stresses defensive riding. Cyclists are encouraged to anticipate the actions of motorists, signal their turns clearly, and obey all traffic laws. Regular maintenance of brakes, tires, and battery systems is also crucial in ensuring the vehicle responds correctly in emergencies.

What Are the Broader Public Health Implications?

The rise in e-bike injuries presents complex challenges for city planners, healthcare providers, and policymakers. With micromobility adoption forecast to increase over the next decade, the strain on emergency services and orthopaedic care may intensify unless proactive measures are taken. There is also a legislative gap: many jurisdictions have outdated or incomplete traffic laws that fail to account for the unique mechanics and capabilities of e-bikes.

The AAOS believes that more robust public education campaigns, combined with manufacturer safety standards and municipal enforcement efforts, are needed to address this emerging public health issue. Insurance companies and liability laws may also need to adapt to this new era of personal transport, especially as more cities promote micromobility as a climate-conscious solution to urban congestion.

Is There a Tradeoff Between Convenience and Physical Health?

While e-bikes provide an efficient means of transportation—especially in traffic-clogged cities or for older adults seeking mobility—medical professionals warn that they may contribute to a decline in physical conditioning. Unlike traditional biking, which demands continuous pedaling and body engagement, e-bikes often allow for passive movement, which could lead to reduced joint strength and cardiovascular fitness over time.

Dr. Waterman noted that while e-bikes may be helpful for those with limited physical mobility, they cannot fully replace the musculoskeletal benefits of regular cycling. Riders seeking long-term health benefits are encouraged to mix e-bike use with traditional bicycles or physical activity regimes that challenge the musculoskeletal system.

As the e-bike industry accelerates, so too must public awareness and regulatory action. Orthopaedic surgeons are increasingly called to treat the aftermath of high-speed crashes involving these sleek, electric-powered machines. Without greater education and enforcement, experts warn that the costs—both medical and societal—will continue to climb.