Galen Rupp

Professional Distance Runner, 2x Olympic Medalist

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The benefits of firefly™

Recover faster with increased blood flow

Increased circulation

Increased circulation &
systemic blood flow

Faster muscle recovery

Faster muscle

Decreased muscle soreness

Decreased muscle soreness

Improved muscle performance

Improved muscle

The firefly™ device stimulates a nerve in your leg, activating several key muscles which directly cause an increase in blood flow while at rest. The firefly™ is a nerve stimulator, so your muscles avoid the fatigue often associated with electrical muscle stimulators.

Speeding up the body's recovery process allows muscles to adapt and respond quicker, meaning an athlete can return to training earlier to improve performance.

The science of firefly™

Science…not fiction

The technology behind firefly™ has been clinically validated to improve blood flow and decrease recovery time.

View firefly™ Clinical Studies

How firefly™ works.

The firefly™ functions in 3 simple ways:

When positioned correctly firefly™ effectively delivers a small and painless electrical stimulus to the common peroneal nerve which triggers the calf muscles in your leg to contract and pump blood throughout your lower extremities.

    Nerve stimulation
  1. firefly™ Stimulates the Nerve.
    firefly™ works with the body's own recovery systems to effectively deliver blood and nutrients to the muscles of the lower legs.
  2. Increased bloodflow
  3. The Leg Muscles Contract.
    The muscle contractions causes an increase in blood flow similar to walking (up to 63%).
  4. systemic blood flow
  5. Blood Flow Increases.
    The calf muscles controlled by the peroneal nerve begin to contract and pump.
    • Up to a 400% increase in
      microcirculatory blood flow
    • Promotes systemic blood flow
      throughout the rest of the body
    • Allows for a faster and more
      efficient recovery after exercise
Anatomy of the leg