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Treadling: Exploring a new exercise device for individuals with Peripheral Arterial Disease

This is a pilot study of a new exercise device (TREDLR), which is designed to help your ankle bend and flex while seated using the momentum you have created. This exercise is called treadling. The goals of this project are to understand how your joints and muscles move with this type of exercise compared to conventional exercise and to explore improvements in mobility and exercise tolerance in individuals who treadle compared to those who do not.

Age & Gender

  • 65 years ~ 99 years
  • Male, Female, Gender Inclusive


North Carolina (Chatham, Durham, Orange, Wake)

What will be asked of you

We will ask you to wear a Fitbit device, visit the lab two times, and complete 0-18 ankle rotation exercise sessions.


$74 or $194 depending on assigned group.

In-person visits : up to 22
Phone or online visits : 1
Total length of participation : 6 weeks

Looking for Specific Volunteers

Able to participate:

  • Patients with peripheral arterial disease
  • Ages 65+

Not eligible if:

  • Had a leg injury/fraction within the last 6 month
  • Neurological disorders affecting the legs
  • Require a leg prosthesis
  • Vestibular diseases or impairments

Looking for Healthy Volunteers

Requirements for healthy volunteers are different than for those with a specific condition. If you are interested in becoming a healthy volunteer for this study, use the below categories to determine if you are able to participate.

Able to participate:

  • Ages 65+

Not eligible if:

  • Leg injuries or fractions within the last 6 months
  • Vestibular diseases or impairments
  • Require a leg prosthesis
  • Neurological diseases affecting the legs

Contact the Team

Visit Location

100% Remote (online, phone, text)

Additional Study Information

Principal Investigator

Jason Franz
Biomedical Engineering - Undergraduate

Study Type

Clinical or Medical

Study Topics

Heart and Circulation
Healthy Volunteer or General Population

IRB Number




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