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WithdrawnNCT05044299Updated Aug 24, 2023

Development of the Isoped Device for Increasing Blood Flow in a Sedentary Aging Population

An interventional study of Isoped in Sedentary Behavior and Aging, sponsored by University of Utah. Withdrawn. Open to participants aged 65 Years to 85 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-08-24.

Sponsored by University of Utah · Not applicable, Interventional, and Treatment

Why this study was withdrawn
The project was not considered for funding so we scrapped the project.
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
65 Years to 85 Years
Sex
All
01

Study summary

The Isoped (patented) is a portable medical device that provides a safe and engaging opportunity for regular physical activity to those with limited mobility and difficulties with performing traditional exercise tasks. It is a tool designed to encourage regular and repeated low impact movement of the lower extremities that can improve blood flow and lead to improved cardiovascular function. By restoring healthier cardiovascular tone, Isoped users may be able to progress to more demanding activities leading to a healthy lifestyle change. Experiencing these improvements can boost confidence, mood, and overall quality of life. Isoped users can exercise while sitting at a desk, watching television, or in a rehabilitation facility. The lightweight device sits on the floor beneath the user's feet and can be operated from a seated, reclined, or supine position. Circulation and lower extremities' blood flow increase as the feet slide the pedals in a forward and backward movement similar to a shuffling walk or in cross-country skiing. Resistance load can be controlled by the user for a customized experience using a smartphone app. Physical exercise is widely recommended as a primary treatment by physicians to improve circulation and prevent cardiovascular diseases associated with physical inactivity and a sedentary lifestyle. Isoped is a healthy and innovative alternative to pharmacological, surgical or other treatment modalities.

Read the detailed description

Aim 1, Refine Device Prototype: A prototype Isoped device will be refined and calibrated for use. Engineering challenges include refining the design to incorporate these features and functions: Electronic Resistance mode (adjustable wirelessly through the Graphical User Interface (GUI)); Stride Length Adjustment (through the GUI); Stride Width Adjustment; Incline Adjustment (powered or manual); Footpad rotation and removal; Bluetooth connectivity to the GUI; comfortable stabilizing modifications to footpads.

Aim 2, Evaluate Device Efficacy and Safety: Isoped will be evaluated for safety and efficacy in a pilot clinical study of 40 volunteers aged 65 to 85 meeting criteria for a sedentary lifestyle and limited physical activity. To non-invasively determine the peripheral hemodynamic effect of the Isoped, we will quantify the lower extremity blood flow response to Isoped facilitated lower leg movement using doppler ultrasound measured at the femoral artery. Changes in mean blood pressure and heart rate will provide secondary measures of effect. Participant safety will be monitored using a 12-lead ECG and beat-by-beat measures of blood pressure and cardiac output. Device performance and safety will be evaluated by recording any deviations in device operability and any adverse events.

On completion of Phase 1, Phase 2 funding will provide the means to further evaluate the device for use in a patient population as a means for encouraging progression to regular health improving exercise regimens. A planned clinical trial in frail and sedentary aging persons using the Isoped over a period of several weeks will evaluate health improvement and willingness to engage in more demanding exercise regimens. This will position Isoped for commercialization as a tool for encouraging effective non-invasive, low-impact activity for improving the health and quality of life in a wide variety of patients having compromised circulation and who are unable and/or unwilling to engage in more rigorous physical activity.

02

Conditions studied

  • Sedentary Behavior
  • Aging

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Keywords

  • aging
  • sedentary behavior
  • blood flow
  • device
03

In context

Sedentary Behavior

367 studies on the registry are indexed under Sedentary Behavior; 165 are open to participants now.

Browse Sedentary Behavior studies →

Lead sponsor

University of Utah is the lead sponsor of 991 studies on the registry; 177 are open to participants now.

Of its 111 completed or terminated interventional studies of FDA-regulated products, 64 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
65 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Self-reported sedentary behavior and physically inactive
  • Activity level confirmed via questionnaire
  • Activity level confirmed by wearing activity monitor (Actigraph) over 7 days

Exclusion criteria

Exclusion Criteria:

  • History of cardiopulmonary
  • History of cardiovascular pathology
  • History of musculoskeletal conditions
  • Other pathology precluding light exercise as evaluated by licensed geriatrician
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
0 participants (actual)

Study arms

  • Active comparator
    Isoped mobilization with resistance load

    Use of Isoped with movement at 3 levels of resistance load: zero, low, high, each condition lasts 3 minutes at 9 minutes total work

    Device: Isoped

  • Active comparator
    Isoped mobilization without resistance load

    Use of Isoped with movement at zero resistance load lasts 9 minutes of work

    Device: Isoped

Interventions

  • DeviceIsoped

    Isoped is a mechanical device allowing movement of lower extremities in a forward and backward motion, with phone-based app to control resistance load

06

What researchers measure

Primary outcomes

  1. Blood flow

    blood flow measured at femoral artery using doppler ultrasound

    Time frame: 15 minutes

Secondary outcomes

  1. continuous heart rate

    heart rate measured using Finapres

    Time frame: 15 minutes

  2. continuous blood pressure

    systolic, diastolic, and mean blood pressure measured continuously (Finapres)

    Time frame: 15 minutes

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 24, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05044299
Lead sponsor
University of Utah
Responsible party
David Bradshaw (Adjunct research assistant professor, University of Utah) — Principal investigator
First posted
Sep 14, 2021
Start date
Apr 1, 2022 (estimated)
Primary completion
Sep 30, 2022 (estimated)
Completion
Mar 31, 2023 (estimated)
Last update
Aug 24, 2023

Study contacts

David H Bradshaw, PhD
principal investigator · University of Utah

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is withdrawn, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

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