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Market research about knee injuries – Philadelphia, USA

Our client, a product design firm, is conducting a Design Validation study on behalf of a company that is developing a home-use medical device for strengthening the quadriceps and improving knee stability following certain knee injuries or surgeries.

The end client is working on improving the user interface of a device that’s already FDA-approved and has been used by patients.  The device that includes an adjustable thigh garment, conductive gel pads, and a hand-held controller.

This study will focus on the hand-held controller. The models evaluated by study participants will be non-functional, and no electrical stimulation will be delivered.


  • 25 years or older
  • Must had total knee replacement surgery or ligament surgery in the past 2-12 months.
  • Able to participate in the test in Philadelphia between 31st of July and 4th of august


What are we looking for?

People aged 25 and older who live in the USA, in and around the South Philadelphia area! 

What does it involve?

The 60-minute in-person user testing session will take place between Monday 31st July – Friday 4th August. 
What’s the reward?

You will receive $150 paid via bank transfer or wide range of commercial gift cards. 

How to take part?

Complete the online form and FieldworkHub will contact you to ask a few additional questions and schedule you in .