CLINICAL STUDY:DREEFT

There has been 200 to 300 scientific publications on manual wheelchair propulsion over the past 30 years, with only 5 to 10 publications that address braking issues.

Having designed “DREEFT” a dynamic braking wheel and given the lack of data on dynamic braking, Eppur initiated a clinical evaluation of its DREEFT device through the Kerpape Mutualist Centre for Rehabilitation and Functional Recovery.

Read our overview presentation of the results →

HIGHLIGHTS OF DREEFT CLINICAL STUDY SEMINAR

BY EPPUR CREATOR COLIN GALLOIS

The inspiration and story behind the creation of Eppur.

Methodology of the DREEFT trial.

Key outcomes of the DREEFT trial.

Frequently Asked Questions

  • DREEFT and SKEED are innovative wheel-mounted braking systems designed for manual wheelchair users. Unlike traditional braking, where users slow down by gripping or rubbing their hands against the push rims, both systems transfer braking forces into the wheel hub, significantly reducing hand friction, effort, and the risk of injury.

    DREEFT uses a unique "back-pedal" style system. Users simply pull the push rim backwards to progressively brake, stop, or reverse.

    SKEED uses a dedicated brake lever mounted at the wheel hub. Pulling the lever slows the wheelchair, while pushing it forward engages an integrated parking brake.

    Both systems eliminate the need to use hands as brake pads and can reduce braking effort by up to 80%.

  • DREEFT is particularly suitable for wheelchair users who:

    • Experience hand pain, burns, or skin damage from braking.

    • Have reduced grip strength or limited hand function.

    • Frequently travel on slopes, ramps, or uneven terrain.

    • Use rear power add-ons and need improved speed control.

    • Want a highly intuitive braking method that closely resembles normal wheelchair propulsion.

    Occupational therapists often find DREEFT beneficial for clients with neurological conditions, upper-limb weakness, arthritis, or progressive conditions where reducing physical effort can support long-term independence.

  • SKEED was developed with active wheelchair users in mind and is especially suited to those who:

    • Regularly perform wheelies or negotiate curbs and obstacles.

    • Want maximum manoeuvrability and responsiveness.

    • Use rear power-assist devices or handbike attachments.

    • Require a lighter braking solution.

    • Need an integrated parking brake.

    • Have limited grip strength and may find lever braking easier than rim braking.

    Because SKEED maintains a fixed push rim, it preserves the natural feel of an active wheelchair while adding precise fingertip braking control.

  • Traditional wheelchair disc brake systems can improve downhill control but often require additional hardware, custom wheel hubs, and can increase overall wheelchair weight. Some users also report increased complexity during wheel removal and transport.

    DREEFT and SKEED were designed specifically for everyday wheelchair use and integrate the braking mechanism directly into the wheel system. Benefits include:

    • No hand friction during braking.

    • Reduced upper-limb strain.

    • Compatibility with rear power add-ons.

    • Effective braking in wet conditions.

    • Simplified operation compared with many aftermarket braking solutions.

    For many users, the key difference is that braking becomes a natural part of propulsion rather than a separate task requiring significant hand force.

  • Weight is one of the main differences between the two systems.

    DREEFT is approximately 3kg per wheel (with push rim) while SKEED is approximately 2.15 kg per wheel.

    For users who frequently remove wheels for transfers, vehicle loading, or travel, SKEED's lower weight may be a significant advantage. For users prioritising intuitive operation and ease of learning, DREEFT may be the preferred option (see product page for detailed product specifications)

  • A useful way to think about the choice is:

    Choose DREEFT when the priority is:

    • Ease of learning.

    • Reduced hand friction and pain.

    • Limited grip strength.

    • Confidence on slopes and ramps.

    • A braking method that feels natural and intuitive.

    Choose SKEED when the priority is:

    • Active wheelchair performance.

    • Maintaining wheelie skills.

    • Lowest possible wheel weight.

    • Integrated parking brake functionality.

    • Precise lever-based control.

    For many clinicians, the decision ultimately comes down to whether the client's primary goal is accessibility and ease of use (DREEFT) or performance and active mobility (SKEED). Both systems provide a substantial improvement over traditional hand-friction braking by reducing effort, improving safety, and helping preserve upper-limb function over time.